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These shares were sold in multiple transactions at prices ranging from $3.631 to $3.70, inclusive. The reporting person has provided to the Issuer, and undertakes to provide to 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 ranges set forth in Footnote (1) to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"This number has been adjusted for (i) the one-for-thirty (1:30) reverse stock split effected by the Issuer on June 24, 2025, (ii) the one-for-ten (1:10) reverse stock split effected by the Issuer on July 21, 2022, and (iii) the one-for-ten (1:10) reverse stock split effected by the Issuer on July 16, 2018."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"These securities are held by Advantage Capital Wisconsin Partners I, Limited Partnership. Venture Investors LLC is the submanager and special limited partner of Advantage Capital Wisconsin Partners I, Limited Partnership. The investment decisions of Venture Investors LLC are made collectively by five managers, including the reporting person. The reporting person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest herein."}],"balance_after":10,"source":{"system":"sec-edgar","filing":"0001104659-25-121691","document":"tm2533642-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1167426/000110465925121691/tm2533642-1_4seq1.xml","form_type":"4"}},{"id":1264492,"issuer":{"id":7572,"kind":"organization","name":"Cellectar Biosciences, Inc."},"owners":[{"id":31493,"kind":"person","name":"NEIS JOHN","position":1,"cik":"0001167426","reported_name":"NEIS JOHN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock option (right to buy)","published_at":"2025-02-18T21:06:31.000Z","date":"2025-02-14","kind":"grant","planned":false,"acquired":true,"shares":60000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"This option shall vest in full on February 14, 2026, subject to the reporting person's continued service through the applicable vesting date."}],"balance_after":60000,"derivative":{"exercise_price":0.29,"expiration_date":"2035-02-14","underlying":"Common Stock","underlying_shares":60000},"source":{"system":"sec-edgar","filing":"0001104659-25-014753","document":"tm256830d7_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1167426/000110465925014753/tm256830d7_4seq1.xml","form_type":"4"}},{"id":1475864,"issuer":{"id":7572,"kind":"organization","name":"Cellectar Biosciences, Inc."},"owners":[{"id":31493,"kind":"person","name":"NEIS JOHN","position":1,"cik":"0001167426","reported_name":"NEIS JOHN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock option (right to buy)","published_at":"2024-06-18T21:00:59.000Z","date":"2024-06-14","kind":"grant","planned":false,"acquired":true,"shares":60000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"This option was contingently granted on December 22, 2023, subject to approval by Cellectar's stockholders of Cellectar's amended 2021 Stock Incentive Plan at Cellectar's 2024 Annual Meeting of Stockholders. Such stockholder approval was obtained on June 14, 2024."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"This option shall vest in full on December 22, 2024, subject to the reporting person's continued service through the applicable vesting date."}],"balance_after":60000,"derivative":{"exercise_price":2.58,"expiration_date":"2033-12-22","underlying":"Common Stock","underlying_shares":60000},"source":{"system":"sec-edgar","filing":"0001104659-24-072881","document":"tm2417520-3_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1167426/000110465924072881/tm2417520-3_4seq1.xml","form_type":"4"}},{"id":1842845,"issuer":{"id":7572,"kind":"organization","name":"Cellectar Biosciences, Inc."},"owners":[{"id":31493,"kind":"person","name":"NEIS JOHN","position":1,"cik":"0001167426","reported_name":"NEIS 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These warrants were sold in multiple transactions at prices ranging from $0.24 and $0.27, inclusive. The reporting person undertakes to provide the staff of the Securities and Exchange Commission, upon request, full information regarding the number of warrants sold at each separate price within the ranges set forth in footnote (2) to this Form 4."}],"balance_after":0,"derivative":{"exercise_price":30.4,"exercise_date":"2016-04-20","expiration_date":"2021-04-20","underlying":"Common Stock","underlying_shares":2323},"source":{"system":"sec-edgar","filing":"0001104659-21-039056","document":"tm2110277d1_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1167426/000110465921039056/tm2110277d1_4seq1.xml","form_type":"4"}},{"id":2777796,"issuer":{"id":7572,"kind":"organization","name":"Cellectar Biosciences, Inc."},"owners":[{"id":31493,"kind":"person","name":"NEIS JOHN","position":1,"cik":"0001167426","reported_name":"NEIS JOHN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Series A Warrants","published_at":"2021-03-19T20:06:14.000Z","date":"2021-03-17","kind":"sale","acquired":false,"shares":58640,"price":0.2775,"value":16272.6,"ownership":{"direct":true},"footnotes":[{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F1","text":"The price reported is a weighted average price. These warrants were sold in multiple transactions at prices ranging from $0.27 and $0.2845, inclusive. The reporting person undertakes to provide the staff of the Securities and Exchange Commission, upon request, full information regarding the number of warrants sold at each separate price within the ranges set forth in footnote (1) to this Form 4."}],"balance_after":23232,"derivative":{"exercise_price":30.4,"exercise_date":"2016-04-20","expiration_date":"2021-04-20","underlying":"Common Stock","underlying_shares":5864},"source":{"system":"sec-edgar","filing":"0001104659-21-039056","document":"tm2110277d1_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1167426/000110465921039056/tm2110277d1_4seq1.xml","form_type":"4"}},{"id":2786703,"issuer":{"id":7572,"kind":"organization","name":"Cellectar Biosciences, Inc."},"owners":[{"id":31493,"kind":"person","name":"NEIS JOHN","position":1,"cik":"0001167426","reported_name":"NEIS JOHN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Series A Warrants","published_at":"2021-03-17T00:54:06.000Z","date":"2021-03-16","kind":"sale","acquired":false,"shares":100515,"price":0.3091,"value":31069.1865,"ownership":{"direct":true},"footnotes":[{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F3","text":"The price reported is a weighted average price. These warrants were sold in multiple transactions at prices ranging from $0.28 and $0.34, inclusive. The reporting person undertakes to provide the staff of the Securities and Exchange Commission, upon request, full information regarding the number of warrants sold at each separate price within the ranges set forth in footnote (3) to this Form 4."}],"balance_after":81872,"derivative":{"exercise_price":30.4,"exercise_date":"2016-04-20","expiration_date":"2021-04-20","underlying":"Common Stock","underlying_shares":10051},"source":{"system":"sec-edgar","filing":"0001104659-21-037323","document":"tm2110008d1_4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1167426/000110465921037323/tm2110008d1_4.xml","form_type":"4"}},{"id":2786702,"issuer":{"id":7572,"kind":"organization","name":"Cellectar Biosciences, Inc."},"owners":[{"id":31493,"kind":"person","name":"NEIS JOHN","position":1,"cik":"0001167426","reported_name":"NEIS JOHN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Series A Warrants","published_at":"2021-03-17T00:54:06.000Z","date":"2021-03-15","kind":"sale","acquired":false,"shares":11200,"price":0.2652,"value":2970.24,"ownership":{"direct":true},"footnotes":[{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F2","text":"The price reported is a weighted average price. These warrants were sold in multiple transactions at prices ranging from $0.265 and $0.2666, inclusive. The reporting person undertakes to provide the staff of the Securities and Exchange Commission, upon request, full information regarding the number of warrants sold at each separate price within the ranges set forth in footnote (2) to this Form 4."}],"balance_after":182387,"derivative":{"exercise_price":30.4,"exercise_date":"2016-04-20","expiration_date":"2021-04-20","underlying":"Common Stock","underlying_shares":1120},"source":{"system":"sec-edgar","filing":"0001104659-21-037323","document":"tm2110008d1_4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1167426/000110465921037323/tm2110008d1_4.xml","form_type":"4"}},{"id":2786701,"issuer":{"id":7572,"kind":"organization","name":"Cellectar Biosciences, Inc."},"owners":[{"id":31493,"kind":"person","name":"NEIS JOHN","position":1,"cik":"0001167426","reported_name":"NEIS JOHN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Series A Warrants","published_at":"2021-03-17T00:54:06.000Z","date":"2021-03-12","kind":"sale","acquired":false,"shares":41155,"price":0.2668,"value":10980.154,"ownership":{"direct":true},"footnotes":[{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F1","text":"The price reported is a weighted average price. These warrants were sold in multiple transactions at prices ranging from $0.2648 and $0.27, inclusive. The reporting person undertakes to provide the staff of the Securities and Exchange Commission, upon request, full information regarding the number of warrants sold at each separate price within the ranges set forth in footnote (1) to this Form 4."}],"balance_after":193587,"derivative":{"exercise_price":30.4,"exercise_date":"2016-04-20","expiration_date":"2021-04-20","underlying":"Common Stock","underlying_shares":4115},"source":{"system":"sec-edgar","filing":"0001104659-21-037323","document":"tm2110008d1_4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1167426/000110465921037323/tm2110008d1_4.xml","form_type":"4"}},{"id":3100050,"issuer":{"id":7572,"kind":"organization","name":"Cellectar Biosciences, Inc."},"owners":[{"id":31493,"kind":"person","name":"NEIS JOHN","position":1,"cik":"0001167426","reported_name":"NEIS JOHN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock option (right to buy)","published_at":"2020-06-25T20:23:26.000Z","date":"2020-06-24","kind":"grant","acquired":true,"shares":50000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"This option grant shall vest over a period of three years from the grant date, with one-third vesting on  the first anniversary of the grant date and the remainder vesting in 24 equal monthly installments over a  24 month period beginning on the first anniversary of the grant date."}],"balance_after":50000,"derivative":{"exercise_price":1.28,"expiration_date":"2030-06-24","underlying":"Common Stock","underlying_shares":50000},"source":{"system":"sec-edgar","filing":"0001104659-20-076873","document":"tm2023456d5_4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1167426/000110465920076873/tm2023456d5_4.xml","form_type":"4"}},{"id":3489857,"issuer":{"id":7572,"kind":"organization","name":"Cellectar Biosciences, Inc."},"owners":[{"id":31493,"kind":"person","name":"NEIS JOHN","position":1,"cik":"0001167426","reported_name":"NEIS JOHN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock option (right to buy)","published_at":"2019-06-14T20:31:59.000Z","date":"2019-06-13","kind":"grant","acquired":true,"shares":6500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Options vest on the one year anniversary of the date of grant."}],"balance_after":6500,"derivative":{"exercise_price":2.15,"expiration_date":"2029-06-13","underlying":"Common Stock","underlying_shares":6500},"source":{"system":"sec-edgar","filing":"0001144204-19-031010","document":"tv523611_4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1167426/000114420419031010/tv523611_4.xml","form_type":"4"}},{"id":3791171,"issuer":{"id":7572,"kind":"organization","name":"Cellectar Biosciences, Inc."},"owners":[{"id":31493,"kind":"person","name":"NEIS JOHN","position":1,"cik":"0001167426","reported_name":"NEIS JOHN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock option (right to buy)","published_at":"2018-10-15T23:51:29.000Z","date":"2018-10-12","kind":"grant","acquired":true,"shares":13000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"This option grant was divided into a definitive grant of 6,150 shares, which vest in equal monthly installments over a seven month period from the grant date, and a contingent grant of 6,850 shares, which are subject to the following conditions: (i) approval by Cellectar's stockholders of an increase in shares available under the Amended and Restated 2015 Stock Incentive Plan at the Corporation's 2019 annual meeting of stockholders or other special meeting of stockholders called for such purpose; and (ii) to the extent stockholder approval is received, the contingent grant shall vest immediately upon such stockholder approval."}],"balance_after":13000,"derivative":{"exercise_price":2.61,"expiration_date":"2028-10-12","underlying":"Common Stock","underlying_shares":13000},"source":{"system":"sec-edgar","filing":"0001144204-18-053882","document":"tv504847_form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1167426/000114420418053882/tv504847_form4.xml","form_type":"4"}},{"id":4160725,"issuer":{"id":7572,"kind":"organization","name":"Cellectar Biosciences, Inc."},"owners":[{"id":31493,"kind":"person","name":"NEIS JOHN","position":1,"cik":"0001167426","reported_name":"NEIS JOHN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock, par value $0.00001 per share","published_at":"2017-11-16T21:04:21.000Z","date":"2017-11-14","kind":"sale","acquired":false,"shares":5214,"price":1.4942,"value":7790.7588,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Advantage Capital Wisconsin Partners I, Limited Partnership sold 5,214 shares which represented all of its Cellectar holdings in order for the fund to make its final distributions and dissolve before the end of 2017."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 of Line 1 with respect to the 5,214 shares sold on November 14, 2017 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.46 to $1.53. The reporting person has provided to the Issuer, and undertakes to provide to 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 ranges set forth in Footnote (2) to this Form 4."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"These securities are held by Advantage Capital Wisconsin Partners I, Limited Partnership. Venture Investors LLC is the submanager and special limited partner of Advantage Capital Wisconsin Partners I, Limited Partnership. The investment decisions of Venture Investors LLC are made collectively by five managers, including the reporting person. The reporting person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest herein."}],"balance_after":626103,"source":{"system":"sec-edgar","filing":"0001144204-17-059707","document":"tv479684_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1167426/000114420417059707/tv479684_4.xml","form_type":"4"}},{"id":4298256,"issuer":{"id":7572,"kind":"organization","name":"Cellectar Biosciences, Inc."},"owners":[{"id":31493,"kind":"person","name":"NEIS JOHN","position":1,"cik":"0001167426","reported_name":"NEIS JOHN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock option (right to buy)","published_at":"2017-06-01T22:02:52.000Z","date":"2017-05-31","kind":"grant","acquired":true,"shares":10000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Options vest in equal annual increments over a period of three years from the date of grant."}],"balance_after":10000,"derivative":{"exercise_price":1.74,"expiration_date":"2027-05-31","underlying":"Common Stock","underlying_shares":10000},"source":{"system":"sec-edgar","filing":"0001144204-17-030681","document":"v468270_4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1167426/000114420417030681/v468270_4.xml","form_type":"4"}},{"id":4538940,"issuer":{"id":7572,"kind":"organization","name":"Cellectar Biosciences, Inc."},"owners":[{"id":31493,"kind":"person","name":"NEIS JOHN","position":1,"cik":"0001167426","reported_name":"NEIS JOHN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Series C Warrants (right to buy)","published_at":"2016-11-30T23:59:48.000Z","date":"2016-11-29","kind":"purchase","acquired":true,"shares":333333,"price":0.01,"value":3333.33,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"These securities are held by Venture Investors Early Stage fund IV Limited Partnership and Advantage Capital Wisconsin Partners I, Limited Partnership. VIESF IV GP LLC is the general partner of Venture Investors Early Stage Fund IV Limited Partnership and Venture Investors LLC is the submanager and special limited partner of Advantage Capital Wisconsin Partners I, Limited Partnership. The investment decisions of VIESF IV GP LLC and Venture Investors LLC are made collectively by seven managers, including the reporting person. The reporting person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest herein."}],"balance_after":607946,"derivative":{"exercise_price":1.5,"exercise_date":"2016-11-29","expiration_date":"2021-11-29","underlying":"Common Stock","underlying_shares":333333},"source":{"system":"sec-edgar","filing":"0001144204-16-137317","document":"v454220_4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1167426/000114420416137317/v454220_4.xml","form_type":"4"}},{"id":4538939,"issuer":{"id":7572,"kind":"organization","name":"Cellectar Biosciences, Inc."},"owners":[{"id":31493,"kind":"person","name":"NEIS JOHN","position":1,"cik":"0001167426","reported_name":"NEIS JOHN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock, par value $0.00001 per share","published_at":"2016-11-30T23:59:48.000Z","date":"2016-11-29","kind":"purchase","acquired":true,"shares":333333,"price":1.49,"value":496666.17,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"These securities are held by Venture Investors Early Stage fund IV Limited Partnership and Advantage Capital Wisconsin Partners I, Limited Partnership. VIESF IV GP LLC is the general partner of Venture Investors Early Stage Fund IV Limited Partnership and Venture Investors LLC is the submanager and special limited partner of Advantage Capital Wisconsin Partners I, Limited Partnership. The investment decisions of VIESF IV GP LLC and Venture Investors LLC are made collectively by seven managers, including the reporting person. The reporting person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest herein."}],"balance_after":631317,"source":{"system":"sec-edgar","filing":"0001144204-16-137317","document":"v454220_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1167426/000114420416137317/v454220_4.xml","form_type":"4"}}]}