{"transactions":[{"id":730674,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2026-06-22T20:29:31.000Z","date":"2026-06-17","kind":"grant","planned":false,"acquired":true,"shares":49579,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 17, 2027, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":49579,"derivative":{"exercise_price":1.13,"expiration_date":"2036-06-16","underlying":"Common Stock","underlying_shares":49579},"source":{"system":"sec-edgar","filing":"0000905148-26-003056","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000090514826003056/form4.xml","form_type":"4"}},{"id":730673,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-06-22T20:29:31.000Z","date":"2026-06-17","kind":"grant","planned":false,"acquired":true,"shares":30421,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock."},{"field":"shares","element":"transactionShares","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 17, 2027, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":201581,"source":{"system":"sec-edgar","filing":"0000905148-26-003056","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000090514826003056/form4.xml","form_type":"4"}},{"id":730383,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36308,"kind":"person","name":"Hemrajani Rekha","position":1,"cik":"0001771213","reported_name":"Hemrajani Rekha","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2026-06-22T20:28:48.000Z","date":"2026-06-17","kind":"grant","planned":false,"acquired":true,"shares":49579,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 17, 2027, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":49579,"derivative":{"exercise_price":1.13,"expiration_date":"2036-06-16","underlying":"Common Stock","underlying_shares":49579},"source":{"system":"sec-edgar","filing":"0000905148-26-003055","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514826003055/form4.xml","form_type":"4"}},{"id":730382,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36308,"kind":"person","name":"Hemrajani Rekha","position":1,"cik":"0001771213","reported_name":"Hemrajani Rekha","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-06-22T20:28:48.000Z","date":"2026-06-17","kind":"grant","planned":false,"acquired":true,"shares":30421,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock."},{"field":"shares","element":"transactionShares","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 17, 2027, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":70314,"source":{"system":"sec-edgar","filing":"0000905148-26-003055","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514826003055/form4.xml","form_type":"4"}},{"id":730380,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36307,"kind":"person","name":"Erck Stanley C","position":1,"cik":"0001342826","reported_name":"Erck Stanley C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2026-06-22T20:28:00.000Z","date":"2026-06-17","kind":"grant","planned":false,"acquired":true,"shares":49579,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 17, 2027, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":49579,"derivative":{"exercise_price":1.13,"expiration_date":"2036-06-16","underlying":"Common Stock","underlying_shares":49579},"source":{"system":"sec-edgar","filing":"0000905148-26-003054","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514826003054/form4.xml","form_type":"4"}},{"id":730379,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36307,"kind":"person","name":"Erck Stanley C","position":1,"cik":"0001342826","reported_name":"Erck Stanley C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-06-22T20:28:00.000Z","date":"2026-06-17","kind":"grant","planned":false,"acquired":true,"shares":30421,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock."},{"field":"shares","element":"transactionShares","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 17, 2027, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":428749,"source":{"system":"sec-edgar","filing":"0000905148-26-003054","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514826003054/form4.xml","form_type":"4"}},{"id":731039,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36117,"kind":"person","name":"DOUGLAS RICHARD","position":1,"cik":"0001021015","reported_name":"DOUGLAS RICHARD","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2026-06-22T20:26:42.000Z","date":"2026-06-17","kind":"grant","planned":false,"acquired":true,"shares":49579,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 17, 2027, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":49579,"derivative":{"exercise_price":1.13,"expiration_date":"2036-06-16","underlying":"Common Stock","underlying_shares":49579},"source":{"system":"sec-edgar","filing":"0000905148-26-003053","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1021015/000090514826003053/form4.xml","form_type":"4"}},{"id":731038,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36117,"kind":"person","name":"DOUGLAS RICHARD","position":1,"cik":"0001021015","reported_name":"DOUGLAS RICHARD","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-06-22T20:26:42.000Z","date":"2026-06-17","kind":"grant","planned":false,"acquired":true,"shares":30421,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock."},{"field":"shares","element":"transactionShares","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 17, 2027, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":260998,"source":{"system":"sec-edgar","filing":"0000905148-26-003053","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1021015/000090514826003053/form4.xml","form_type":"4"}},{"id":730398,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36312,"kind":"person","name":"Collins Cynthia","position":1,"cik":"0001405692","reported_name":"Collins Cynthia","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2026-06-22T20:25:54.000Z","date":"2026-06-17","kind":"grant","planned":false,"acquired":true,"shares":49579,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 17, 2027, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":49579,"derivative":{"exercise_price":1.13,"expiration_date":"2036-06-16","underlying":"Common Stock","underlying_shares":49579},"source":{"system":"sec-edgar","filing":"0000905148-26-003052","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1405692/000090514826003052/form4.xml","form_type":"4"}},{"id":730397,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36312,"kind":"person","name":"Collins Cynthia","position":1,"cik":"0001405692","reported_name":"Collins Cynthia","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-06-22T20:25:54.000Z","date":"2026-06-17","kind":"grant","planned":false,"acquired":true,"shares":30421,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock."},{"field":"shares","element":"transactionShares","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 17, 2027, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":111310,"source":{"system":"sec-edgar","filing":"0000905148-26-003052","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1405692/000090514826003052/form4.xml","form_type":"4"}},{"id":730376,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36305,"kind":"person","name":"Brooke William W","position":1,"cik":"0001545337","reported_name":"Brooke William W","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2026-06-22T20:25:08.000Z","date":"2026-06-17","kind":"grant","planned":false,"acquired":true,"shares":49579,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 17, 2027, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":49579,"derivative":{"exercise_price":1.13,"expiration_date":"2036-06-16","underlying":"Common Stock","underlying_shares":49579},"source":{"system":"sec-edgar","filing":"0000905148-26-003051","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514826003051/form4.xml","form_type":"4"}},{"id":730375,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36305,"kind":"person","name":"Brooke William W","position":1,"cik":"0001545337","reported_name":"Brooke William W","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-06-22T20:25:08.000Z","date":"2026-06-17","kind":"grant","planned":false,"acquired":true,"shares":30421,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock."},{"field":"shares","element":"transactionShares","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 17, 2027, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":181300,"source":{"system":"sec-edgar","filing":"0000905148-26-003051","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514826003051/form4.xml","form_type":"4"}},{"id":730378,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36306,"kind":"person","name":"BALTHROP PATRICK J","position":1,"cik":"0001284839","reported_name":"BALTHROP PATRICK J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2026-06-22T20:24:06.000Z","date":"2026-06-17","kind":"grant","planned":false,"acquired":true,"shares":49579,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 17, 2027, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":49579,"derivative":{"exercise_price":1.13,"expiration_date":"2036-06-16","underlying":"Common Stock","underlying_shares":49579},"source":{"system":"sec-edgar","filing":"0000905148-26-003050","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514826003050/form4.xml","form_type":"4"}},{"id":730377,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36306,"kind":"person","name":"BALTHROP PATRICK J","position":1,"cik":"0001284839","reported_name":"BALTHROP PATRICK J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-06-22T20:24:06.000Z","date":"2026-06-17","kind":"grant","planned":false,"acquired":true,"shares":30421,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock."},{"field":"shares","element":"transactionShares","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 17, 2027, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":80998,"source":{"system":"sec-edgar","filing":"0000905148-26-003050","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514826003050/form4.xml","form_type":"4"}},{"id":730374,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36304,"kind":"person","name":"Al-Wakeel Yasir B.","position":1,"cik":"0001650691","reported_name":"Al-Wakeel Yasir B.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2026-06-22T20:23:08.000Z","date":"2026-06-17","kind":"grant","planned":false,"acquired":true,"shares":49579,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 17, 2027, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":49579,"derivative":{"exercise_price":1.13,"expiration_date":"2036-06-16","underlying":"Common Stock","underlying_shares":49579},"source":{"system":"sec-edgar","filing":"0000905148-26-003049","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514826003049/form4.xml","form_type":"4"}},{"id":730373,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36304,"kind":"person","name":"Al-Wakeel Yasir B.","position":1,"cik":"0001650691","reported_name":"Al-Wakeel Yasir B.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-06-22T20:23:08.000Z","date":"2026-06-17","kind":"grant","planned":false,"acquired":true,"shares":30421,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock."},{"field":"shares","element":"transactionShares","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 17, 2027, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":80998,"source":{"system":"sec-edgar","filing":"0000905148-26-003049","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514826003049/form4.xml","form_type":"4"}},{"id":805368,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":52042,"kind":"person","name":"Ahuja Parmeet","position":1,"cik":"0002128046","reported_name":"Ahuja Parmeet","relationship":{"officer":true,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2026-04-17T20:14:08.000Z","date":"2026-04-15","kind":"grant","planned":false,"acquired":true,"shares":187500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. Twenty-five percent (25%) of the RSUs shall vest on March 30, 2027, and the remainder shall vest in three (3) equal annual installments thereafter, subject to the Reporting Person's continued service to the Issuer through each vesting date."}],"balance_after":187500,"source":{"system":"sec-edgar","filing":"0000905148-26-001718","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514826001718/form4.xml","form_type":"4"}},{"id":810268,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":52042,"kind":"person","name":"Ahuja Parmeet","position":1,"cik":"0002128046","reported_name":"Ahuja Parmeet","relationship":{"officer":true,"officer_title":"Chief Financial Officer"}}],"security":"Employee Stock Option (right to buy)","published_at":"2026-04-10T20:45:56.000Z","date":"2026-03-30","kind":"grant","planned":false,"acquired":true,"shares":375000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Twenty-five percent (25%) of the shares underlying this option shall vest on March 30, 2027, and the remainder shall vest in thirty-six (36) equal monthly installments thereafter, subject to the Reporting Person's continued service to the Issuer through each vesting date."}],"balance_after":375000,"derivative":{"exercise_price":0.6762,"expiration_date":"2036-03-29","underlying":"Common Stock","underlying_shares":375000},"source":{"system":"sec-edgar","filing":"0000905148-26-001644","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514826001644/form4.xml","form_type":"4"}},{"id":824235,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":55067,"kind":"person","name":"Masoud Maher","position":1,"cik":"0001874571","reported_name":"Masoud Maher","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Employee Stock Option (right to buy)","published_at":"2026-03-31T16:12:11.000Z","date":"2026-03-27","kind":"grant","planned":false,"acquired":true,"shares":600000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Twenty-five percent (25%) of the shares underlying this option shall vest on March 27, 2027, and the remainder shall vest in thirty-six (36) equal monthly installments thereafter, subject to the Reporting Person's continued service to the Issuer through each vesting date."}],"balance_after":600000,"derivative":{"exercise_price":0.684,"expiration_date":"2036-03-26","underlying":"Common Stock","underlying_shares":600000},"source":{"system":"sec-edgar","filing":"0000905148-26-001480","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1874571/000090514826001480/form4.xml","form_type":"4"}},{"id":824234,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":55067,"kind":"person","name":"Masoud Maher","position":1,"cik":"0001874571","reported_name":"Masoud Maher","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-03-31T16:12:11.000Z","date":"2026-03-27","kind":"grant","planned":false,"acquired":true,"shares":300000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. Twenty-five percent (25%) of the RSUs shall vest on March 27, 2027, and the remainder shall vest in three (3) equal annual installments thereafter, subject to the Reporting Person's continued service to the Issuer through each vesting date."}],"balance_after":475000,"source":{"system":"sec-edgar","filing":"0000905148-26-001480","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1874571/000090514826001480/form4.xml","form_type":"4"}},{"id":833310,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":31408,"kind":"person","name":"Swirsky Douglas J","position":1,"cik":"0001375884","reported_name":"Swirsky Douglas J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CHIEF FINANCIAL OFFICER"}}],"security":"Common Stock","published_at":"2026-03-19T20:05:29.000Z","date":"2026-03-17","kind":"sale","planned":false,"acquired":false,"shares":10142,"price":0.815,"value":8265.73,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"These shares were sold to cover tax withholding due upon vesting of previously granted restricted stock units (\"RSUs\"). Such \"sale to cover\" was automatically effected to satisfy tax withholding obligations and does not represent a discretionary trade by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price of all shares sold on the transaction date by the Issuer's broker to cover taxes upon the vesting of RSUs for certain employees of the Issuer, including the Reporting Person. These shares were sold in multiple transactions at prices ranging from $0.783 to $0.825, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":151669,"source":{"system":"sec-edgar","filing":"0000905148-26-001397","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514826001397/form4.xml","form_type":"4"}},{"id":1054423,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36308,"kind":"person","name":"Hemrajani Rekha","position":1,"cik":"0001771213","reported_name":"Hemrajani Rekha","relationship":{"director":true}}],"security":"Common Stock","published_at":"2025-08-27T21:12:01.000Z","date":"2025-06-25","kind":"sale","planned":true,"acquired":false,"shares":10684,"price":2.0945,"value":22377.638,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 18, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2.07 to $2.1212, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":39893,"source":{"system":"sec-edgar","filing":"0000905148-25-003155","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514825003155/form4.xml","form_type":"4"}},{"id":1067674,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":31408,"kind":"person","name":"Swirsky Douglas J","position":1,"cik":"0001375884","reported_name":"Swirsky Douglas J","relationship":{"officer":true,"officer_title":"CHIEF FINANCIAL OFFICER"}}],"security":"Common Stock","published_at":"2025-08-13T23:48:49.000Z","date":"2025-08-13","kind":"purchase","planned":false,"acquired":true,"shares":50000,"price":1.29,"value":64500.0,"ownership":{"direct":true},"balance_after":161811,"source":{"system":"sec-edgar","filing":"0000905148-25-002877","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514825002877/form4.xml","form_type":"4"}},{"id":1067673,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36307,"kind":"person","name":"Erck Stanley C","position":1,"cik":"0001342826","reported_name":"Erck Stanley C","relationship":{"director":true}}],"security":"Common Stock","published_at":"2025-08-13T23:47:13.000Z","date":"2025-08-13","kind":"purchase","planned":false,"acquired":true,"shares":100000,"price":1.3722,"value":137220.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These shares were purchased in multiple transactions at prices ranging from $1.29 to $1.44, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote."}],"balance_after":398328,"source":{"system":"sec-edgar","filing":"0000905148-25-002875","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514825002875/form4.xml","form_type":"4"}},{"id":1068159,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36117,"kind":"person","name":"DOUGLAS RICHARD","position":1,"cik":"0001021015","reported_name":"DOUGLAS RICHARD","relationship":{"director":true}}],"security":"Common Stock","published_at":"2025-08-13T23:46:18.000Z","date":"2025-08-13","kind":"purchase","planned":false,"acquired":true,"shares":80000,"price":1.388,"value":111040.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These shares were purchased in multiple transactions at prices ranging from $1.30 to $1.40, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote."}],"balance_after":230577,"source":{"system":"sec-edgar","filing":"0000905148-25-002874","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1021015/000090514825002874/form4.xml","form_type":"4"}},{"id":1067672,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36305,"kind":"person","name":"Brooke William W","position":1,"cik":"0001545337","reported_name":"Brooke William W","relationship":{"director":true}}],"security":"Common Stock","published_at":"2025-08-13T23:45:31.000Z","date":"2025-08-13","kind":"purchase","planned":false,"acquired":true,"shares":50000,"price":1.29,"value":64500.0,"ownership":{"direct":true},"balance_after":150879,"source":{"system":"sec-edgar","filing":"0000905148-25-002873","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514825002873/form4.xml","form_type":"4"}},{"id":1067928,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":55067,"kind":"person","name":"Masoud Maher","position":1,"cik":"0001874571","reported_name":"Masoud Maher","relationship":{"director":true,"officer":true,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2025-08-13T19:47:52.000Z","date":"2025-08-13","kind":"purchase","planned":false,"acquired":true,"shares":75000,"price":1.3722,"value":102915.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These shares were purchased in multiple transactions at prices ranging from $1.29 to $1.44, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote."}],"balance_after":175000,"source":{"system":"sec-edgar","filing":"0000905148-25-002876","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1874571/000090514825002876/form4.xml","form_type":"4"}},{"id":1103988,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true}}],"security":"Stock Option (right to buy)","published_at":"2025-06-23T22:48:05.000Z","date":"2025-06-18","kind":"grant","planned":false,"acquired":true,"shares":50790,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 18, 2026, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":50790,"derivative":{"exercise_price":2.11,"expiration_date":"2035-06-17","underlying":"Common Stock","underlying_shares":50790},"source":{"system":"sec-edgar","filing":"0000905148-25-002235","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000090514825002235/form4.xml","form_type":"4"}},{"id":1103987,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true}}],"security":"Common Stock","published_at":"2025-06-23T22:48:05.000Z","date":"2025-06-18","kind":"grant","planned":false,"acquired":true,"shares":29210,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock."},{"field":"shares","element":"transactionShares","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 18, 2026, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":171160,"source":{"system":"sec-edgar","filing":"0000905148-25-002235","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000090514825002235/form4.xml","form_type":"4"}},{"id":1103602,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36308,"kind":"person","name":"Hemrajani Rekha","position":1,"cik":"0001771213","reported_name":"Hemrajani Rekha","relationship":{"director":true}}],"security":"Stock Option (right to buy)","published_at":"2025-06-23T22:43:30.000Z","date":"2025-06-18","kind":"grant","planned":false,"acquired":true,"shares":50790,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 18, 2026, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":50790,"derivative":{"exercise_price":2.11,"expiration_date":"2035-06-17","underlying":"Common Stock","underlying_shares":50790},"source":{"system":"sec-edgar","filing":"0000905148-25-002234","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514825002234/form4.xml","form_type":"4"}},{"id":1103601,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36308,"kind":"person","name":"Hemrajani Rekha","position":1,"cik":"0001771213","reported_name":"Hemrajani Rekha","relationship":{"director":true}}],"security":"Common Stock","published_at":"2025-06-23T22:43:30.000Z","date":"2025-06-18","kind":"grant","planned":false,"acquired":true,"shares":29210,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock."},{"field":"shares","element":"transactionShares","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 18, 2026, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":50577,"source":{"system":"sec-edgar","filing":"0000905148-25-002234","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514825002234/form4.xml","form_type":"4"}},{"id":1103600,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36307,"kind":"person","name":"Erck Stanley C","position":1,"cik":"0001342826","reported_name":"Erck Stanley C","relationship":{"director":true}}],"security":"Stock Option (right to buy)","published_at":"2025-06-23T22:41:47.000Z","date":"2025-06-18","kind":"grant","planned":false,"acquired":true,"shares":50790,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 18, 2026, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":50790,"derivative":{"exercise_price":2.11,"expiration_date":"2035-06-17","underlying":"Common Stock","underlying_shares":50790},"source":{"system":"sec-edgar","filing":"0000905148-25-002233","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514825002233/form4.xml","form_type":"4"}},{"id":1103599,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36307,"kind":"person","name":"Erck Stanley C","position":1,"cik":"0001342826","reported_name":"Erck Stanley C","relationship":{"director":true}}],"security":"Common Stock","published_at":"2025-06-23T22:41:47.000Z","date":"2025-06-18","kind":"grant","planned":false,"acquired":true,"shares":29210,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock."},{"field":"shares","element":"transactionShares","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 18, 2026, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":298328,"source":{"system":"sec-edgar","filing":"0000905148-25-002233","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514825002233/form4.xml","form_type":"4"}},{"id":1104241,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36117,"kind":"person","name":"DOUGLAS RICHARD","position":1,"cik":"0001021015","reported_name":"DOUGLAS RICHARD","relationship":{"director":true}}],"security":"Stock Option (right to buy)","published_at":"2025-06-23T22:39:57.000Z","date":"2025-06-18","kind":"grant","planned":false,"acquired":true,"shares":50790,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 18, 2026, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":50790,"derivative":{"exercise_price":2.11,"expiration_date":"2035-06-17","underlying":"Common Stock","underlying_shares":50790},"source":{"system":"sec-edgar","filing":"0000905148-25-002232","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1021015/000090514825002232/form4.xml","form_type":"4"}},{"id":1104240,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36117,"kind":"person","name":"DOUGLAS RICHARD","position":1,"cik":"0001021015","reported_name":"DOUGLAS RICHARD","relationship":{"director":true}}],"security":"Common Stock","published_at":"2025-06-23T22:39:57.000Z","date":"2025-06-18","kind":"grant","planned":false,"acquired":true,"shares":29210,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock."},{"field":"shares","element":"transactionShares","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 18, 2026, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":150577,"source":{"system":"sec-edgar","filing":"0000905148-25-002232","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1021015/000090514825002232/form4.xml","form_type":"4"}},{"id":1103615,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36312,"kind":"person","name":"Collins Cynthia","position":1,"cik":"0001405692","reported_name":"Collins Cynthia","relationship":{"director":true}}],"security":"Stock Option (right to buy)","published_at":"2025-06-23T22:38:24.000Z","date":"2025-06-18","kind":"grant","planned":false,"acquired":true,"shares":50790,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 18, 2026, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":50790,"derivative":{"exercise_price":2.11,"expiration_date":"2035-06-17","underlying":"Common Stock","underlying_shares":50790},"source":{"system":"sec-edgar","filing":"0000905148-25-002231","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1405692/000090514825002231/form4.xml","form_type":"4"}},{"id":1103614,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36312,"kind":"person","name":"Collins Cynthia","position":1,"cik":"0001405692","reported_name":"Collins Cynthia","relationship":{"director":true}}],"security":"Common Stock","published_at":"2025-06-23T22:38:24.000Z","date":"2025-06-18","kind":"grant","planned":false,"acquired":true,"shares":29210,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock."},{"field":"shares","element":"transactionShares","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 18, 2026, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":80889,"source":{"system":"sec-edgar","filing":"0000905148-25-002231","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1405692/000090514825002231/form4.xml","form_type":"4"}},{"id":1103598,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36305,"kind":"person","name":"Brooke William W","position":1,"cik":"0001545337","reported_name":"Brooke William W","relationship":{"director":true}}],"security":"Stock Option (right to buy)","published_at":"2025-06-23T22:37:04.000Z","date":"2025-06-18","kind":"grant","planned":false,"acquired":true,"shares":50790,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 18, 2026, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":50790,"derivative":{"exercise_price":2.11,"expiration_date":"2035-06-17","underlying":"Common Stock","underlying_shares":50790},"source":{"system":"sec-edgar","filing":"0000905148-25-002230","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514825002230/form4.xml","form_type":"4"}},{"id":1103597,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36305,"kind":"person","name":"Brooke William W","position":1,"cik":"0001545337","reported_name":"Brooke William W","relationship":{"director":true}}],"security":"Common Stock","published_at":"2025-06-23T22:37:04.000Z","date":"2025-06-18","kind":"grant","planned":false,"acquired":true,"shares":29210,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock."},{"field":"shares","element":"transactionShares","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 18, 2026, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":100879,"source":{"system":"sec-edgar","filing":"0000905148-25-002230","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514825002230/form4.xml","form_type":"4"}},{"id":1103596,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36306,"kind":"person","name":"BALTHROP PATRICK J","position":1,"cik":"0001284839","reported_name":"BALTHROP PATRICK J","relationship":{"director":true}}],"security":"Stock Option (right to buy)","published_at":"2025-06-23T22:34:43.000Z","date":"2025-06-18","kind":"grant","planned":false,"acquired":true,"shares":50790,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 18, 2026, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":50790,"derivative":{"exercise_price":2.11,"expiration_date":"2035-06-17","underlying":"Common Stock","underlying_shares":50790},"source":{"system":"sec-edgar","filing":"0000905148-25-002229","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514825002229/form4.xml","form_type":"4"}},{"id":1103595,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36306,"kind":"person","name":"BALTHROP PATRICK J","position":1,"cik":"0001284839","reported_name":"BALTHROP PATRICK J","relationship":{"director":true}}],"security":"Common Stock","published_at":"2025-06-23T22:34:43.000Z","date":"2025-06-18","kind":"grant","planned":false,"acquired":true,"shares":29210,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock."},{"field":"shares","element":"transactionShares","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 18, 2026, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":50577,"source":{"system":"sec-edgar","filing":"0000905148-25-002229","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514825002229/form4.xml","form_type":"4"}},{"id":1103594,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36304,"kind":"person","name":"Al-Wakeel Yasir B.","position":1,"cik":"0001650691","reported_name":"Al-Wakeel Yasir B.","relationship":{"director":true}}],"security":"Stock Option (right to buy)","published_at":"2025-06-23T22:32:58.000Z","date":"2025-06-18","kind":"grant","planned":false,"acquired":true,"shares":50790,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 18, 2026, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":50790,"derivative":{"exercise_price":2.11,"expiration_date":"2035-06-17","underlying":"Common Stock","underlying_shares":50790},"source":{"system":"sec-edgar","filing":"0000905148-25-002228","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514825002228/form4.xml","form_type":"4"}},{"id":1103593,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36304,"kind":"person","name":"Al-Wakeel Yasir B.","position":1,"cik":"0001650691","reported_name":"Al-Wakeel Yasir B.","relationship":{"director":true}}],"security":"Common Stock","published_at":"2025-06-23T22:32:58.000Z","date":"2025-06-18","kind":"grant","planned":false,"acquired":true,"shares":29210,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock."},{"field":"shares","element":"transactionShares","label":"F2","text":"This annual grant was made pursuant to the Issuer's Equity Grant Policy for non-employee directors. The shares underlying this grant vest on June 18, 2026, subject to the reporting person's continuous service as of such vesting date."}],"balance_after":50577,"source":{"system":"sec-edgar","filing":"0000905148-25-002228","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514825002228/form4.xml","form_type":"4"}},{"id":1195541,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":31408,"kind":"person","name":"Swirsky Douglas J","position":1,"cik":"0001375884","reported_name":"Swirsky Douglas J","relationship":{"officer":true,"officer_title":"CHIEF FINANCIAL OFFICER"}}],"security":"Common Stock","published_at":"2025-03-20T22:08:37.000Z","date":"2025-03-18","kind":"sale","planned":false,"acquired":false,"shares":6939,"price":3.1793,"value":22061.1627,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"These shares were sold to cover tax withholding due upon vesting of previously granted restricted stock units (\"RSUs\"). Such \"sale to cover\" was automatically effected to satisfy tax withholding obligations and does not represent a discretionary trade by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price of all shares sold on the transaction date by the Issuer's broker to cover taxes upon the vesting of RSUs for certain employees of the Issuer, including the Reporting Person. These shares were sold in multiple transactions at prices ranging from $3.14 to $3.215, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":111811,"source":{"system":"sec-edgar","filing":"0000905148-25-000984","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514825000984/form4.xml","form_type":"4"}},{"id":1195938,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":81711,"kind":"person","name":"Soleymannezhad Ali","position":1,"cik":"0002037336","reported_name":"Soleymannezhad Ali","relationship":{"officer":true,"officer_title":"Chief Commercial Officer"}}],"security":"Common Stock","published_at":"2025-03-20T18:49:14.000Z","date":"2025-03-18","kind":"sale","planned":false,"acquired":false,"shares":1211,"price":3.1793,"value":3850.1323,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"These shares were sold to cover tax withholding due upon vesting of previously granted restricted stock units (\"RSUs\"). Such \"sale to cover\" was automatically effected to satisfy tax withholding obligations and does not represent a discretionary trade by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price of all shares sold on the transaction date by the Issuer's broker to cover taxes upon the vesting of RSUs for certain employees of the Issuer, including the Reporting Person. These shares were sold in multiple transactions at prices ranging from $3.14 to $3.215, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":59439,"source":{"system":"sec-edgar","filing":"0000905148-25-000986","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2037336/000090514825000986/form4.xml","form_type":"4"}},{"id":1195909,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":56590,"kind":"person","name":"Sandoval David I.","position":1,"cik":"0002012430","reported_name":"Sandoval David I.","relationship":{"officer":true,"officer_title":"GENERAL COUNSEL"}}],"security":"Common Stock","published_at":"2025-03-20T18:47:50.000Z","date":"2025-03-18","kind":"sale","planned":false,"acquired":false,"shares":353,"price":3.1793,"value":1122.2929,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"These shares were sold to cover tax withholding due upon vesting of previously granted restricted stock units (\"RSUs\"). Such \"sale to cover\" was automatically effected to satisfy tax withholding obligations and does not represent a discretionary trade by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price of all shares sold on the transaction date by the Issuer's broker to cover taxes upon the vesting of RSUs for certain employees of the Issuer, including the Reporting Person. These shares were sold in multiple transactions at prices ranging from $3.14 to $3.215, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":64219,"source":{"system":"sec-edgar","filing":"0000905148-25-000985","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2012430/000090514825000985/form4.xml","form_type":"4"}},{"id":1199326,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":31408,"kind":"person","name":"Swirsky Douglas J","position":1,"cik":"0001375884","reported_name":"Swirsky Douglas J","relationship":{"officer":true,"officer_title":"CHIEF FINANCIAL OFFICER"}}],"security":"Employee Stock Option (right to buy)","published_at":"2025-03-19T00:33:27.000Z","date":"2025-03-14","kind":"grant","planned":false,"acquired":true,"shares":150000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Twenty-five percent (25%) of the shares underlying this option shall vest on March 14, 2026, and the remainder shall vest in thirty-six (36) equal monthly installments thereafter, subject to the Reporting Person's continued service to the Issuer through each vesting date."}],"balance_after":150000,"derivative":{"exercise_price":3.29,"expiration_date":"2035-03-13","underlying":"Common Stock","underlying_shares":150000},"source":{"system":"sec-edgar","filing":"0000905148-25-000962","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514825000962/form4.xml","form_type":"4"}},{"id":1199325,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":31408,"kind":"person","name":"Swirsky Douglas J","position":1,"cik":"0001375884","reported_name":"Swirsky Douglas J","relationship":{"officer":true,"officer_title":"CHIEF FINANCIAL OFFICER"}}],"security":"Common Stock","published_at":"2025-03-19T00:33:27.000Z","date":"2025-03-14","kind":"grant","planned":false,"acquired":true,"shares":37500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. Twenty-five percent (25%) of the RSUs shall vest on March 14, 2026, and the remainder shall vest in three (3) equal annual installments thereafter, subject to the Reporting Person's continued service to the Issuer through each vesting date."}],"balance_after":118750,"source":{"system":"sec-edgar","filing":"0000905148-25-000962","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000090514825000962/form4.xml","form_type":"4"}},{"id":1200738,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":81711,"kind":"person","name":"Soleymannezhad Ali","position":1,"cik":"0002037336","reported_name":"Soleymannezhad Ali","relationship":{"officer":true,"officer_title":"Chief Commercial Officer"}}],"security":"Employee Stock Option (right to buy)","published_at":"2025-03-18T20:51:28.000Z","date":"2025-03-14","kind":"grant","planned":false,"acquired":true,"shares":138500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Twenty-five percent (25%) of the shares underlying this option shall vest on March 14, 2026, and the remainder shall vest in thirty-six (36) equal monthly installments thereafter, subject to the Reporting Person's continued service to the Issuer through each vesting date."}],"balance_after":138500,"derivative":{"exercise_price":3.29,"expiration_date":"2035-03-13","underlying":"Common Stock","underlying_shares":138500},"source":{"system":"sec-edgar","filing":"0000905148-25-000964","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2037336/000090514825000964/form4.xml","form_type":"4"}},{"id":1200737,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":81711,"kind":"person","name":"Soleymannezhad Ali","position":1,"cik":"0002037336","reported_name":"Soleymannezhad Ali","relationship":{"officer":true,"officer_title":"Chief Commercial Officer"}}],"security":"Common Stock","published_at":"2025-03-18T20:51:28.000Z","date":"2025-03-14","kind":"grant","planned":false,"acquired":true,"shares":34625,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. Twenty-five percent (25%) of the RSUs shall vest on March 14, 2026, and the remainder shall vest in three (3) equal annual installments thereafter, subject to the Reporting Person's continued service to the Issuer through each vesting date."}],"balance_after":60650,"source":{"system":"sec-edgar","filing":"0000905148-25-000964","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2037336/000090514825000964/form4.xml","form_type":"4"}},{"id":1200608,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":56590,"kind":"person","name":"Sandoval David I.","position":1,"cik":"0002012430","reported_name":"Sandoval David I.","relationship":{"officer":true,"officer_title":"GENERAL COUNSEL"}}],"security":"Employee Stock Option (right to buy)","published_at":"2025-03-18T20:49:42.000Z","date":"2025-03-14","kind":"grant","planned":false,"acquired":true,"shares":92500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Twenty-five percent (25%) of the shares underlying this option shall vest on March 14, 2026, and the remainder shall vest in thirty-six (36) equal monthly installments thereafter, subject to the Reporting Person's continued service to the Issuer through each vesting date."}],"balance_after":92500,"derivative":{"exercise_price":3.29,"expiration_date":"2035-03-13","underlying":"Common Stock","underlying_shares":92500},"source":{"system":"sec-edgar","filing":"0000905148-25-000963","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2012430/000090514825000963/form4.xml","form_type":"4"}},{"id":1200607,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":56590,"kind":"person","name":"Sandoval David I.","position":1,"cik":"0002012430","reported_name":"Sandoval David I.","relationship":{"officer":true,"officer_title":"GENERAL COUNSEL"}}],"security":"Common Stock","published_at":"2025-03-18T20:49:42.000Z","date":"2025-03-14","kind":"grant","planned":false,"acquired":true,"shares":23125,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. Twenty-five percent (25%) of the RSUs shall vest on March 14, 2026, and the remainder shall vest in three (3) equal annual installments thereafter, subject to the Reporting Person's continued service to the Issuer through each vesting date."}],"balance_after":64572,"source":{"system":"sec-edgar","filing":"0000905148-25-000963","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2012430/000090514825000963/form4.xml","form_type":"4"}},{"id":1200377,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":55067,"kind":"person","name":"Masoud Maher","position":1,"cik":"0001874571","reported_name":"Masoud Maher","relationship":{"director":true,"officer":true,"officer_title":"President and CEO"}}],"security":"Employee Stock Option (right to buy)","published_at":"2025-03-18T20:31:18.000Z","date":"2025-03-14","kind":"grant","planned":false,"acquired":true,"shares":347500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Twenty-five percent (25%) of the shares underlying this option shall vest on March 14, 2026, and the remainder shall vest in thirty-six (36) equal monthly installments thereafter, subject to the Reporting Person's continued service to the Issuer through each vesting date."}],"balance_after":347500,"derivative":{"exercise_price":3.29,"expiration_date":"2035-03-13","underlying":"Common Stock","underlying_shares":347500},"source":{"system":"sec-edgar","filing":"0000905148-25-000961","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1874571/000090514825000961/form4.xml","form_type":"4"}},{"id":1291954,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2025-01-29T21:13:11.000Z","date":"2025-01-27","kind":"exercise","planned":true,"acquired":false,"shares":3000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2023."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"This option is fully vested and exercisable."}],"balance_after":17417,"derivative":{"exercise_price":2.932,"expiration_date":"2028-07-18","underlying":"Common Stock","underlying_shares":3000},"source":{"system":"sec-edgar","filing":"0001415889-25-002263","document":"form4-01292025_090107.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000141588925002263/form4-01292025_090107.xml","form_type":"4"}},{"id":1291953,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-01-29T21:13:11.000Z","date":"2025-01-27","kind":"sale","planned":true,"acquired":false,"shares":3000,"price":4.645,"value":13935.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $4.52 to $4.72, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":141950,"source":{"system":"sec-edgar","filing":"0001415889-25-002263","document":"form4-01292025_090107.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000141588925002263/form4-01292025_090107.xml","form_type":"4"}},{"id":1291952,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-01-29T21:13:11.000Z","date":"2025-01-27","kind":"exercise","planned":true,"acquired":true,"shares":3000,"price":2.932,"value":8796.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2023."}],"balance_after":144950,"source":{"system":"sec-edgar","filing":"0001415889-25-002263","document":"form4-01292025_090107.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000141588925002263/form4-01292025_090107.xml","form_type":"4"}},{"id":1303665,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":56590,"kind":"person","name":"Sandoval David I.","position":1,"cik":"0002012430","reported_name":"Sandoval David I.","relationship":{"officer":true,"officer_title":"GENERAL COUNSEL"}}],"security":"Common Stock","published_at":"2025-01-14T16:03:39.000Z","date":"2025-01-13","kind":"sale","planned":false,"acquired":false,"shares":4466,"price":4.5391,"value":20271.6206,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"These shares were sold to cover tax withholding due upon vesting of previously granted restricted stock units. Such \"sale to cover\" was automatically effected to satisfy tax withholding obligations and does not represent a discretionary trade by the Reporting Person."}],"balance_after":41447,"source":{"system":"sec-edgar","filing":"0000905148-25-000092","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2012430/000090514825000092/form4.xml","form_type":"4"}},{"id":1320471,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2024-12-30T21:15:04.000Z","date":"2024-12-26","kind":"exercise","planned":true,"acquired":false,"shares":3000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2023."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"This option is fully vested and exercisable."}],"balance_after":20417,"derivative":{"exercise_price":2.932,"expiration_date":"2028-07-18","underlying":"Common Stock","underlying_shares":3000},"source":{"system":"sec-edgar","filing":"0001415889-24-030230","document":"form4-12302024_041201.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000141588924030230/form4-12302024_041201.xml","form_type":"4"}},{"id":1320470,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-12-30T21:15:04.000Z","date":"2024-12-26","kind":"sale","planned":true,"acquired":false,"shares":3000,"price":4.007,"value":12021.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $3.995 to $4.06, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":141950,"source":{"system":"sec-edgar","filing":"0001415889-24-030230","document":"form4-12302024_041201.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000141588924030230/form4-12302024_041201.xml","form_type":"4"}},{"id":1320469,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-12-30T21:15:04.000Z","date":"2024-12-26","kind":"exercise","planned":true,"acquired":true,"shares":3000,"price":2.932,"value":8796.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2023."}],"balance_after":144950,"source":{"system":"sec-edgar","filing":"0001415889-24-030230","document":"form4-12302024_041201.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000141588924030230/form4-12302024_041201.xml","form_type":"4"}},{"id":1337399,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2024-12-10T21:30:09.000Z","date":"2024-12-09","kind":"exercise","planned":true,"acquired":false,"shares":483,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2023."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"This option is fully vested and exercisable."}],"balance_after":23417,"derivative":{"exercise_price":2.932,"expiration_date":"2028-07-18","underlying":"Common Stock","underlying_shares":483},"source":{"system":"sec-edgar","filing":"0001415889-24-028839","document":"form4-12102024_041201.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000141588924028839/form4-12102024_041201.xml","form_type":"4"}},{"id":1337398,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2024-12-10T21:30:09.000Z","date":"2024-12-09","kind":"exercise","planned":true,"acquired":false,"shares":1121,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2023."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"This option is fully vested and exercisable."}],"balance_after":0,"derivative":{"exercise_price":1.641,"expiration_date":"2030-01-20","underlying":"Common Stock","underlying_shares":1121},"source":{"system":"sec-edgar","filing":"0001415889-24-028839","document":"form4-12102024_041201.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000141588924028839/form4-12102024_041201.xml","form_type":"4"}},{"id":1337397,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2024-12-10T21:30:09.000Z","date":"2024-12-09","kind":"exercise","planned":true,"acquired":false,"shares":891,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2023."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"This option is fully vested and exercisable."}],"balance_after":0,"derivative":{"exercise_price":2.926,"expiration_date":"2027-07-14","underlying":"Common Stock","underlying_shares":891},"source":{"system":"sec-edgar","filing":"0001415889-24-028839","document":"form4-12102024_041201.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000141588924028839/form4-12102024_041201.xml","form_type":"4"}},{"id":1337396,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2024-12-10T21:30:09.000Z","date":"2024-12-06","kind":"exercise","planned":true,"acquired":false,"shares":505,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2023."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"This option is fully vested and exercisable."}],"balance_after":891,"derivative":{"exercise_price":2.926,"expiration_date":"2027-07-14","underlying":"Common Stock","underlying_shares":505},"source":{"system":"sec-edgar","filing":"0001415889-24-028839","document":"form4-12102024_041201.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000141588924028839/form4-12102024_041201.xml","form_type":"4"}},{"id":1337395,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-12-10T21:30:09.000Z","date":"2024-12-09","kind":"sale","planned":true,"acquired":false,"shares":2495,"price":3.791,"value":9458.545,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $3.705 to $3.84, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":141950,"source":{"system":"sec-edgar","filing":"0001415889-24-028839","document":"form4-12102024_041201.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000141588924028839/form4-12102024_041201.xml","form_type":"4"}},{"id":1337394,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-12-10T21:30:09.000Z","date":"2024-12-09","kind":"exercise","planned":true,"acquired":true,"shares":483,"price":2.932,"value":1416.156,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2023."}],"balance_after":144445,"source":{"system":"sec-edgar","filing":"0001415889-24-028839","document":"form4-12102024_041201.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000141588924028839/form4-12102024_041201.xml","form_type":"4"}},{"id":1337393,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-12-10T21:30:09.000Z","date":"2024-12-09","kind":"exercise","planned":true,"acquired":true,"shares":1121,"price":1.641,"value":1839.561,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2023."}],"balance_after":143962,"source":{"system":"sec-edgar","filing":"0001415889-24-028839","document":"form4-12102024_041201.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000141588924028839/form4-12102024_041201.xml","form_type":"4"}},{"id":1337392,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-12-10T21:30:09.000Z","date":"2024-12-09","kind":"exercise","planned":true,"acquired":true,"shares":891,"price":2.926,"value":2607.066,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2023."}],"balance_after":142841,"source":{"system":"sec-edgar","filing":"0001415889-24-028839","document":"form4-12102024_041201.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000141588924028839/form4-12102024_041201.xml","form_type":"4"}},{"id":1337391,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-12-10T21:30:09.000Z","date":"2024-12-06","kind":"sale","planned":true,"acquired":false,"shares":505,"price":3.701,"value":1869.005,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $3.70 to $3.705, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":141950,"source":{"system":"sec-edgar","filing":"0001415889-24-028839","document":"form4-12102024_041201.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000141588924028839/form4-12102024_041201.xml","form_type":"4"}},{"id":1337390,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-12-10T21:30:09.000Z","date":"2024-12-06","kind":"exercise","planned":true,"acquired":true,"shares":505,"price":2.926,"value":1477.63,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2023."}],"balance_after":142455,"source":{"system":"sec-edgar","filing":"0001415889-24-028839","document":"form4-12102024_041201.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000141588924028839/form4-12102024_041201.xml","form_type":"4"}},{"id":1375189,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36307,"kind":"person","name":"Erck Stanley C","position":1,"cik":"0001342826","reported_name":"Erck Stanley C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Employee Stock Option (right to buy)","published_at":"2024-11-05T21:25:05.000Z","date":"2024-11-01","kind":"exercise","planned":true,"acquired":false,"shares":47689,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercises reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 12, 2024. The option that is the subject of the trading plan is scheduled to expire by its terms on November 11, 2024."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"This option is fully vested and exercisable."}],"balance_after":0,"derivative":{"exercise_price":0.04,"expiration_date":"2024-11-11","underlying":"Common Stock","underlying_shares":47689},"source":{"system":"sec-edgar","filing":"0001415889-24-026144","document":"form4-11052024_041101.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000141588924026144/form4-11052024_041101.xml","form_type":"4"}},{"id":1375188,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36307,"kind":"person","name":"Erck Stanley C","position":1,"cik":"0001342826","reported_name":"Erck Stanley C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-11-05T21:25:05.000Z","date":"2024-11-01","kind":"sale","planned":true,"acquired":false,"shares":47689,"price":3.72,"value":177403.08,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercises reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 12, 2024. The option that is the subject of the trading plan is scheduled to expire by its terms on November 11, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $3.61 to $3.755, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":269118,"source":{"system":"sec-edgar","filing":"0001415889-24-026144","document":"form4-11052024_041101.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000141588924026144/form4-11052024_041101.xml","form_type":"4"}},{"id":1375187,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36307,"kind":"person","name":"Erck Stanley C","position":1,"cik":"0001342826","reported_name":"Erck Stanley C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-11-05T21:25:05.000Z","date":"2024-11-01","kind":"exercise","planned":true,"acquired":true,"shares":47689,"price":0.04,"value":1907.56,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercises reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 12, 2024. The option that is the subject of the trading plan is scheduled to expire by its terms on November 11, 2024."}],"balance_after":316807,"source":{"system":"sec-edgar","filing":"0001415889-24-026144","document":"form4-11052024_041101.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000141588924026144/form4-11052024_041101.xml","form_type":"4"}},{"id":1379460,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2024-10-30T20:15:09.000Z","date":"2024-10-28","kind":"exercise","planned":true,"acquired":false,"shares":3000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2023."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"This option is fully vested and exercisable."}],"balance_after":1396,"derivative":{"exercise_price":2.926,"expiration_date":"2027-07-14","underlying":"Common Stock","underlying_shares":3000},"source":{"system":"sec-edgar","filing":"0001415889-24-025749","document":"form4-10302024_041006.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000141588924025749/form4-10302024_041006.xml","form_type":"4"}},{"id":1379459,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-10-30T20:15:09.000Z","date":"2024-10-28","kind":"sale","planned":true,"acquired":false,"shares":3000,"price":3.722,"value":11166.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $3.70 to $3.74, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":141950,"source":{"system":"sec-edgar","filing":"0001415889-24-025749","document":"form4-10302024_041006.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000141588924025749/form4-10302024_041006.xml","form_type":"4"}},{"id":1379458,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-10-30T20:15:09.000Z","date":"2024-10-28","kind":"exercise","planned":true,"acquired":true,"shares":3000,"price":2.926,"value":8778.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2023."}],"balance_after":144950,"source":{"system":"sec-edgar","filing":"0001415889-24-025749","document":"form4-10302024_041006.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000141588924025749/form4-10302024_041006.xml","form_type":"4"}},{"id":1385786,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36312,"kind":"person","name":"Collins Cynthia","position":1,"cik":"0001405692","reported_name":"Collins Cynthia","relationship":{"director":true}}],"security":"Stock Option (right to buy)","published_at":"2024-10-16T21:36:05.000Z","date":"2024-10-14","kind":"grant","planned":false,"acquired":true,"shares":97698,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"One-third of the shares underlying this option shall vest on October 14, 2025, and the remainder shall vest in twenty-four (24) substantially equal monthly installments thereafter, subject to the Reporting Person's continued service to the Issuer through each vesting date."}],"balance_after":97698,"derivative":{"exercise_price":3.87,"expiration_date":"2034-10-13","underlying":"Common Stock","underlying_shares":97698},"source":{"system":"sec-edgar","filing":"0000905148-24-002726","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1405692/000090514824002726/form4.xml","form_type":"4"}},{"id":1385785,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36312,"kind":"person","name":"Collins Cynthia","position":1,"cik":"0001405692","reported_name":"Collins Cynthia","relationship":{"director":true}}],"security":"Common Stock","published_at":"2024-10-16T21:36:05.000Z","date":"2024-10-14","kind":"grant","planned":false,"acquired":true,"shares":51679,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. One hundred percent (100%) of the RSUs shall vest on October 14, 2025, subject to the Reporting Person's continued service to the Issuer through such vesting date."}],"balance_after":51679,"source":{"system":"sec-edgar","filing":"0000905148-24-002726","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1405692/000090514824002726/form4.xml","form_type":"4"}},{"id":1394009,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36307,"kind":"person","name":"Erck Stanley C","position":1,"cik":"0001342826","reported_name":"Erck Stanley C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Employee Stock Option (right to buy)","published_at":"2024-10-02T21:03:39.000Z","date":"2024-10-02","kind":"exercise","planned":true,"acquired":false,"shares":21607,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercises reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 12, 2024. The option that is the subject of the trading plan is scheduled to expire by its terms on November 11, 2024."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"This option is fully vested and exercisable."}],"balance_after":47689,"derivative":{"exercise_price":0.04,"expiration_date":"2024-11-11","underlying":"Common Stock","underlying_shares":21607},"source":{"system":"sec-edgar","filing":"0001415889-24-024454","document":"form4-10022024_091036.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000141588924024454/form4-10022024_091036.xml","form_type":"4"}},{"id":1394008,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36307,"kind":"person","name":"Erck Stanley C","position":1,"cik":"0001342826","reported_name":"Erck Stanley C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Employee Stock Option (right to buy)","published_at":"2024-10-02T21:03:39.000Z","date":"2024-10-01","kind":"exercise","planned":true,"acquired":false,"shares":26082,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercises reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 12, 2024. The option that is the subject of the trading plan is scheduled to expire by its terms on November 11, 2024."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"This option is fully vested and exercisable."}],"balance_after":69296,"derivative":{"exercise_price":0.04,"expiration_date":"2024-11-11","underlying":"Common Stock","underlying_shares":26082},"source":{"system":"sec-edgar","filing":"0001415889-24-024454","document":"form4-10022024_091036.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000141588924024454/form4-10022024_091036.xml","form_type":"4"}},{"id":1394007,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36307,"kind":"person","name":"Erck Stanley C","position":1,"cik":"0001342826","reported_name":"Erck Stanley C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-10-02T21:03:39.000Z","date":"2024-10-02","kind":"sale","planned":true,"acquired":false,"shares":21607,"price":3.71,"value":80161.97,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercises reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 12, 2024. The option that is the subject of the trading plan is scheduled to expire by its terms on November 11, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $3.625 to $3.77, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":269118,"source":{"system":"sec-edgar","filing":"0001415889-24-024454","document":"form4-10022024_091036.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000141588924024454/form4-10022024_091036.xml","form_type":"4"}},{"id":1394006,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36307,"kind":"person","name":"Erck Stanley C","position":1,"cik":"0001342826","reported_name":"Erck Stanley C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-10-02T21:03:39.000Z","date":"2024-10-02","kind":"exercise","planned":true,"acquired":true,"shares":21607,"price":0.04,"value":864.28,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercises reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 12, 2024. The option that is the subject of the trading plan is scheduled to expire by its terms on November 11, 2024."}],"balance_after":290725,"source":{"system":"sec-edgar","filing":"0001415889-24-024454","document":"form4-10022024_091036.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000141588924024454/form4-10022024_091036.xml","form_type":"4"}},{"id":1394005,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36307,"kind":"person","name":"Erck Stanley C","position":1,"cik":"0001342826","reported_name":"Erck Stanley C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-10-02T21:03:39.000Z","date":"2024-10-01","kind":"sale","planned":true,"acquired":false,"shares":26082,"price":3.78,"value":98589.96,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercises reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 12, 2024. The option that is the subject of the trading plan is scheduled to expire by its terms on November 11, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $3.69 to $3.88, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":269118,"source":{"system":"sec-edgar","filing":"0001415889-24-024454","document":"form4-10022024_091036.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000141588924024454/form4-10022024_091036.xml","form_type":"4"}},{"id":1394004,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36307,"kind":"person","name":"Erck Stanley C","position":1,"cik":"0001342826","reported_name":"Erck Stanley C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-10-02T21:03:39.000Z","date":"2024-10-01","kind":"exercise","planned":true,"acquired":true,"shares":26082,"price":0.04,"value":1043.28,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercises reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 12, 2024. The option that is the subject of the trading plan is scheduled to expire by its terms on November 11, 2024."}],"balance_after":295200,"source":{"system":"sec-edgar","filing":"0001415889-24-024454","document":"form4-10022024_091036.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000141588924024454/form4-10022024_091036.xml","form_type":"4"}},{"id":1397979,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2024-09-30T20:15:07.000Z","date":"2024-09-26","kind":"exercise","planned":true,"acquired":false,"shares":3000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2023."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"This option is fully vested and exercisable."}],"balance_after":4396,"derivative":{"exercise_price":2.926,"expiration_date":"2027-07-14","underlying":"Common Stock","underlying_shares":3000},"source":{"system":"sec-edgar","filing":"0001415889-24-024090","document":"form4-09302024_040901.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000141588924024090/form4-09302024_040901.xml","form_type":"4"}},{"id":1397978,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-09-30T20:15:07.000Z","date":"2024-09-26","kind":"sale","planned":true,"acquired":false,"shares":3000,"price":3.82,"value":11460.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $3.80 to $3.87, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":141950,"source":{"system":"sec-edgar","filing":"0001415889-24-024090","document":"form4-09302024_040901.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000141588924024090/form4-09302024_040901.xml","form_type":"4"}},{"id":1397977,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-09-30T20:15:07.000Z","date":"2024-09-26","kind":"exercise","planned":true,"acquired":true,"shares":3000,"price":2.926,"value":8778.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2023."}],"balance_after":144950,"source":{"system":"sec-edgar","filing":"0001415889-24-024090","document":"form4-09302024_040901.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000141588924024090/form4-09302024_040901.xml","form_type":"4"}},{"id":1403913,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":81711,"kind":"person","name":"Soleymannezhad Ali","position":1,"cik":"0002037336","reported_name":"Soleymannezhad Ali","relationship":{"officer":true,"officer_title":"Chief Commercial Officer"}}],"security":"Employee Stock Option (right to buy)","published_at":"2024-09-18T16:34:33.000Z","date":"2024-09-16","kind":"grant","planned":false,"acquired":true,"shares":20800,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Twenty-five percent (25%) of the shares underlying this option shall vest on September 16, 2025, and the remainder shall vest in thirty-six (36) substantially equal monthly installments thereafter, subject to the Reporting Person's continued service to the Issuer through each vesting date."}],"balance_after":20800,"derivative":{"exercise_price":4.12,"expiration_date":"2034-09-15","underlying":"Common Stock","underlying_shares":20800},"source":{"system":"sec-edgar","filing":"0000905148-24-002566","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2037336/000090514824002566/form4.xml","form_type":"4"}},{"id":1403912,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":81711,"kind":"person","name":"Soleymannezhad Ali","position":1,"cik":"0002037336","reported_name":"Soleymannezhad Ali","relationship":{"officer":true,"officer_title":"Chief Commercial Officer"}}],"security":"Common Stock","published_at":"2024-09-18T16:34:33.000Z","date":"2024-09-16","kind":"grant","planned":false,"acquired":true,"shares":10400,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. Twenty-five percent (25%) of the RSUs shall vest on September 16, 2025, and the remainder shall vest in three (3) equal annual installments thereafter, subject to the Reporting Person's continued service to the Issuer through each vesting date."}],"balance_after":26025,"source":{"system":"sec-edgar","filing":"0000905148-24-002566","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2037336/000090514824002566/form4.xml","form_type":"4"}},{"id":1413699,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36307,"kind":"person","name":"Erck Stanley C","position":1,"cik":"0001342826","reported_name":"Erck Stanley C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Employee Stock Option (right to buy)","published_at":"2024-09-05T21:10:41.000Z","date":"2024-09-04","kind":"exercise","planned":true,"acquired":false,"shares":29767,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercises reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 12, 2024. The option that is the subject of the trading plan is scheduled to expire by its terms on November 11, 2024."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"This option is fully vested and exercisable."}],"balance_after":95378,"derivative":{"exercise_price":0.04,"expiration_date":"2024-11-11","underlying":"Common Stock","underlying_shares":29767},"source":{"system":"sec-edgar","filing":"0001415889-24-022941","document":"form4-09052024_090936.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000141588924022941/form4-09052024_090936.xml","form_type":"4"}},{"id":1413698,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36307,"kind":"person","name":"Erck Stanley C","position":1,"cik":"0001342826","reported_name":"Erck Stanley C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Employee Stock Option (right to buy)","published_at":"2024-09-05T21:10:41.000Z","date":"2024-09-03","kind":"exercise","planned":true,"acquired":false,"shares":17922,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercises reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 12, 2024. The option that is the subject of the trading plan is scheduled to expire by its terms on November 11, 2024."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"This option is fully vested and exercisable."}],"balance_after":125145,"derivative":{"exercise_price":0.04,"expiration_date":"2024-11-11","underlying":"Common Stock","underlying_shares":17922},"source":{"system":"sec-edgar","filing":"0001415889-24-022941","document":"form4-09052024_090936.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000141588924022941/form4-09052024_090936.xml","form_type":"4"}},{"id":1413697,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36307,"kind":"person","name":"Erck Stanley C","position":1,"cik":"0001342826","reported_name":"Erck Stanley C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-09-05T21:10:41.000Z","date":"2024-09-04","kind":"sale","planned":true,"acquired":false,"shares":29767,"price":3.97,"value":118174.99,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercises reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 12, 2024. The option that is the subject of the trading plan is scheduled to expire by its terms on November 11, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $3.90 to $4.07, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":269118,"source":{"system":"sec-edgar","filing":"0001415889-24-022941","document":"form4-09052024_090936.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000141588924022941/form4-09052024_090936.xml","form_type":"4"}},{"id":1413696,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36307,"kind":"person","name":"Erck Stanley C","position":1,"cik":"0001342826","reported_name":"Erck Stanley C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-09-05T21:10:41.000Z","date":"2024-09-04","kind":"exercise","planned":true,"acquired":true,"shares":29767,"price":0.04,"value":1190.68,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercises reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 12, 2024. The option that is the subject of the trading plan is scheduled to expire by its terms on November 11, 2024."}],"balance_after":298885,"source":{"system":"sec-edgar","filing":"0001415889-24-022941","document":"form4-09052024_090936.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000141588924022941/form4-09052024_090936.xml","form_type":"4"}},{"id":1413695,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36307,"kind":"person","name":"Erck Stanley C","position":1,"cik":"0001342826","reported_name":"Erck Stanley C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-09-05T21:10:41.000Z","date":"2024-09-03","kind":"sale","planned":true,"acquired":false,"shares":17922,"price":4.1,"value":73480.2,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercises reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 12, 2024. The option that is the subject of the trading plan is scheduled to expire by its terms on November 11, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $4.04 to $4.30, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":269118,"source":{"system":"sec-edgar","filing":"0001415889-24-022941","document":"form4-09052024_090936.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000141588924022941/form4-09052024_090936.xml","form_type":"4"}},{"id":1413694,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36307,"kind":"person","name":"Erck Stanley C","position":1,"cik":"0001342826","reported_name":"Erck Stanley C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-09-05T21:10:41.000Z","date":"2024-09-03","kind":"exercise","planned":true,"acquired":true,"shares":17922,"price":0.04,"value":716.88,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercises reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 12, 2024. The option that is the subject of the trading plan is scheduled to expire by its terms on November 11, 2024."}],"balance_after":287040,"source":{"system":"sec-edgar","filing":"0001415889-24-022941","document":"form4-09052024_090936.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1287098/000141588924022941/form4-09052024_090936.xml","form_type":"4"}},{"id":1421016,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2024-08-28T20:30:09.000Z","date":"2024-08-26","kind":"exercise","planned":true,"acquired":false,"shares":3000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2023."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"This option is fully vested and exercisable."}],"balance_after":7396,"derivative":{"exercise_price":2.926,"expiration_date":"2027-07-14","underlying":"Common Stock","underlying_shares":3000},"source":{"system":"sec-edgar","filing":"0001415889-24-022448","document":"form4-08282024_040806.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000141588924022448/form4-08282024_040806.xml","form_type":"4"}},{"id":1421015,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-08-28T20:30:09.000Z","date":"2024-08-26","kind":"sale","planned":true,"acquired":false,"shares":3000,"price":4.28,"value":12840.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $4.23 to $4.35, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":141950,"source":{"system":"sec-edgar","filing":"0001415889-24-022448","document":"form4-08282024_040806.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000141588924022448/form4-08282024_040806.xml","form_type":"4"}},{"id":1421014,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":36389,"kind":"person","name":"Johnston John Joseph","position":1,"cik":"0001874850","reported_name":"Johnston John Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-08-28T20:30:09.000Z","date":"2024-08-26","kind":"exercise","planned":true,"acquired":true,"shares":3000,"price":2.926,"value":8778.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2023."}],"balance_after":144950,"source":{"system":"sec-edgar","filing":"0001415889-24-022448","document":"form4-08282024_040806.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1874850/000141588924022448/form4-08282024_040806.xml","form_type":"4"}},{"id":1440993,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":88504,"kind":"person","name":"Ross Thomas M.","position":1,"cik":"0001874572","reported_name":"Ross Thomas M.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, GLOBAL SALES"}}],"security":"Employee Stock Option (right to buy)","published_at":"2024-08-05T18:57:07.000Z","date":"2024-08-02","kind":"exercise","planned":true,"acquired":false,"shares":17857,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercises reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 19, 2024."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The option has fully vested."}],"balance_after":1,"derivative":{"exercise_price":1.641,"expiration_date":"2030-01-20","underlying":"Common Stock","underlying_shares":17857},"source":{"system":"sec-edgar","filing":"0001415889-24-020785","document":"form4-08052024_100803.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1874572/000141588924020785/form4-08052024_100803.xml","form_type":"4"}},{"id":1440992,"issuer":{"id":6608,"kind":"organization","name":"MAXCYTE, INC."},"owners":[{"id":88504,"kind":"person","name":"Ross Thomas M.","position":1,"cik":"0001874572","reported_name":"Ross Thomas M.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, GLOBAL SALES"}}],"security":"Employee Stock Option (right to buy)","published_at":"2024-08-05T18:57:07.000Z","date":"2024-08-01","kind":"exercise","planned":true,"acquired":false,"shares":15476,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales and option exercises reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 19, 2024."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The option has fully vested."}],"balance_after":17858,"derivative":{"exercise_price":1.641,"expiration_date":"2030-01-20","underlying":"Common Stock","underlying_shares":15476},"source":{"system":"sec-edgar","filing":"0001415889-24-020785","document":"form4-08052024_100803.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1874572/000141588924020785/form4-08052024_100803.xml","form_type":"4"}}],"next_cursor":"2024-08-05T18:57:07.000000Z,1440992"}