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The trustee of the trust is independent of the reporting person, and the reporting person does not have voting, dispositive, or pecuniary interest over any of the securities held by the trust."}],"balance_after":833949,"source":{"system":"sec-edgar","filing":"0002007795-26-000006","document":"wk-form4_1778879168.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1999480/000200779526000006/wk-form4_1778879168.xml","form_type":"4"}},{"id":868514,"issuer":{"id":4755,"kind":"organization","name":"Alto Neuroscience, Inc.","symbol":"ANRO"},"owners":[{"id":46948,"kind":"person","name":"Etkin Amit","position":1,"cik":"0002007795","reported_name":"Etkin Amit","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2026-03-04T00:16:05.000Z","date":"2026-03-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":6227,"price":19.69,"value":122609.63,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares of common stock withheld for payment of taxes upon vesting of restricted stock units previously reported in Table I and does not represent an open market transaction by the reporting person."}],"balance_after":1233949,"source":{"system":"sec-edgar","filing":"0002007795-26-000002","document":"wk-form4_1772583360.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1999480/000200779526000002/wk-form4_1772583360.xml","form_type":"4"}},{"id":905412,"issuer":{"id":4755,"kind":"organization","name":"Alto Neuroscience, Inc.","symbol":"ANRO"},"owners":[{"id":46948,"kind":"person","name":"Etkin Amit","position":1,"cik":"0002007795","reported_name":"Etkin Amit","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":"2026-02-13T22:20:16.000Z","date":"2026-02-11","kind":"grant","planned":false,"acquired":true,"shares":306000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"25% of the shares underlying the option shall vest on February 11, 2027, and one forty-eighth (1/48th) of the shares underlying the option shall vest in monthly installments thereafter, subject to the Reporting Person's continuous service through each such vesting date."}],"balance_after":306000,"derivative":{"exercise_price":16.71,"expiration_date":"2036-02-10","underlying":"Common Stock","underlying_shares":306000},"source":{"system":"sec-edgar","filing":"0002007795-26-000001","document":"wk-form4_1771021213.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1999480/000200779526000001/wk-form4_1771021213.xml","form_type":"4"}},{"id":1090757,"issuer":{"id":4755,"kind":"organization","name":"Alto Neuroscience, Inc.","symbol":"ANRO"},"owners":[{"id":46948,"kind":"person","name":"Etkin Amit","position":1,"cik":"0002007795","reported_name":"Etkin Amit","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":"2025-07-08T21:21:22.000Z","date":"2025-07-03","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":215000,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The transactions reported herein reflect a one-time stock option repricing (the \"Option Repricing\") effective on July 3, 2025 (the \"Repricing Date\"). The Option Repricing applies to options with exercise prices greater than $2.35 per share held by continuing employees of the Issuer as of the Repricing Date."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Pursuant to the Option Repricing, the exercise price of the repriced options has been amended to reduce the exercise price to $2.35 per share, the closing price of the Issuer's common stock on the Repricing Date. However, if an employee exercises a repriced option before the end of a retention period of one year (subject to earlier termination in certain circumstances), such employee will be required to pay the original exercise price per share of such repriced option. There is no change to the vesting schedules, expiration dates of, or number of shares underlying the repriced options."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"25% of the shares underlying the option shall vest on February 5, 2026, and one forty-eighth (1/48th) of the shares underlying the option shall vest in monthly installments thereafter, subject to the Reporting Person's continuous service through each such vesting date."}],"balance_after":0,"derivative":{"exercise_price":4.2,"expiration_date":"2035-02-04","underlying":"Common Stock","underlying_shares":215000},"source":{"system":"sec-edgar","filing":"0001999480-25-000063","document":"wk-form4_1752009676.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1999480/000199948025000063/wk-form4_1752009676.xml","form_type":"4"}},{"id":1090756,"issuer":{"id":4755,"kind":"organization","name":"Alto Neuroscience, Inc.","symbol":"ANRO"},"owners":[{"id":46948,"kind":"person","name":"Etkin Amit","position":1,"cik":"0002007795","reported_name":"Etkin Amit","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":"2025-07-08T21:21:22.000Z","date":"2025-07-03","kind":"grant","planned":false,"acquired":true,"shares":215000,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The transactions reported herein reflect a one-time stock option repricing (the \"Option Repricing\") effective on July 3, 2025 (the \"Repricing Date\"). The Option Repricing applies to options with exercise prices greater than $2.35 per share held by continuing employees of the Issuer as of the Repricing Date."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Pursuant to the Option Repricing, the exercise price of the repriced options has been amended to reduce the exercise price to $2.35 per share, the closing price of the Issuer's common stock on the Repricing Date. However, if an employee exercises a repriced option before the end of a retention period of one year (subject to earlier termination in certain circumstances), such employee will be required to pay the original exercise price per share of such repriced option. There is no change to the vesting schedules, expiration dates of, or number of shares underlying the repriced options."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"25% of the shares underlying the option shall vest on February 5, 2026, and one forty-eighth (1/48th) of the shares underlying the option shall vest in monthly installments thereafter, subject to the Reporting Person's continuous service through each such vesting date."}],"balance_after":215000,"derivative":{"exercise_price":2.35,"expiration_date":"2035-02-04","underlying":"Common Stock","underlying_shares":215000},"source":{"system":"sec-edgar","filing":"0001999480-25-000063","document":"wk-form4_1752009676.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1999480/000199948025000063/wk-form4_1752009676.xml","form_type":"4"}},{"id":1090755,"issuer":{"id":4755,"kind":"organization","name":"Alto Neuroscience, Inc.","symbol":"ANRO"},"owners":[{"id":46948,"kind":"person","name":"Etkin Amit","position":1,"cik":"0002007795","reported_name":"Etkin Amit","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":"2025-07-08T21:21:22.000Z","date":"2025-07-03","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":223000,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The transactions reported herein reflect a one-time stock option repricing (the \"Option Repricing\") effective on July 3, 2025 (the \"Repricing Date\"). The Option Repricing applies to options with exercise prices greater than $2.35 per share held by continuing employees of the Issuer as of the Repricing Date."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Pursuant to the Option Repricing, the exercise price of the repriced options has been amended to reduce the exercise price to $2.35 per share, the closing price of the Issuer's common stock on the Repricing Date. However, if an employee exercises a repriced option before the end of a retention period of one year (subject to earlier termination in certain circumstances), such employee will be required to pay the original exercise price per share of such repriced option. There is no change to the vesting schedules, expiration dates of, or number of shares underlying the repriced options."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"25% of the shares underlying the option vested on March 1, 2025, and one forty-eighth (1/48th) of the shares underlying the option vested or shall vest in monthly installments thereafter, subject to the Reporting Person's continuous service through each such vesting date."}],"balance_after":0,"derivative":{"exercise_price":14.88,"expiration_date":"2034-02-28","underlying":"Common Stock","underlying_shares":223000},"source":{"system":"sec-edgar","filing":"0001999480-25-000063","document":"wk-form4_1752009676.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1999480/000199948025000063/wk-form4_1752009676.xml","form_type":"4"}},{"id":1090754,"issuer":{"id":4755,"kind":"organization","name":"Alto Neuroscience, Inc.","symbol":"ANRO"},"owners":[{"id":46948,"kind":"person","name":"Etkin Amit","position":1,"cik":"0002007795","reported_name":"Etkin Amit","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":"2025-07-08T21:21:22.000Z","date":"2025-07-03","kind":"grant","planned":false,"acquired":true,"shares":223000,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The transactions reported herein reflect a one-time stock option repricing (the \"Option Repricing\") effective on July 3, 2025 (the \"Repricing Date\"). The Option Repricing applies to options with exercise prices greater than $2.35 per share held by continuing employees of the Issuer as of the Repricing Date."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Pursuant to the Option Repricing, the exercise price of the repriced options has been amended to reduce the exercise price to $2.35 per share, the closing price of the Issuer's common stock on the Repricing Date. However, if an employee exercises a repriced option before the end of a retention period of one year (subject to earlier termination in certain circumstances), such employee will be required to pay the original exercise price per share of such repriced option. There is no change to the vesting schedules, expiration dates of, or number of shares underlying the repriced options."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"25% of the shares underlying the option vested on March 1, 2025, and one forty-eighth (1/48th) of the shares underlying the option vested or shall vest in monthly installments thereafter, subject to the Reporting Person's continuous service through each such vesting date."}],"balance_after":223000,"derivative":{"exercise_price":2.35,"expiration_date":"2034-02-28","underlying":"Common Stock","underlying_shares":223000},"source":{"system":"sec-edgar","filing":"0001999480-25-000063","document":"wk-form4_1752009676.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1999480/000199948025000063/wk-form4_1752009676.xml","form_type":"4"}},{"id":1090753,"issuer":{"id":4755,"kind":"organization","name":"Alto Neuroscience, Inc.","symbol":"ANRO"},"owners":[{"id":46948,"kind":"person","name":"Etkin Amit","position":1,"cik":"0002007795","reported_name":"Etkin Amit","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":"2025-07-08T21:21:22.000Z","date":"2025-07-03","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":247290,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The transactions reported herein reflect a one-time stock option repricing (the \"Option Repricing\") effective on July 3, 2025 (the \"Repricing Date\"). The Option Repricing applies to options with exercise prices greater than $2.35 per share held by continuing employees of the Issuer as of the Repricing Date."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Pursuant to the Option Repricing, the exercise price of the repriced options has been amended to reduce the exercise price to $2.35 per share, the closing price of the Issuer's common stock on the Repricing Date. However, if an employee exercises a repriced option before the end of a retention period of one year (subject to earlier termination in certain circumstances), such employee will be required to pay the original exercise price per share of such repriced option. There is no change to the vesting schedules, expiration dates of, or number of shares underlying the repriced options."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"One-third (1/3rd) of the shares underlying the option vested upon the completion of the Issuer's initial public offering and two-thirds (2/3) of the shares underlying the option vest over a period of four years. 25% of the shares underlying the time-based portion vested on December 20, 2024, and 1/48 of the shares underlying the time-based portion vested or shall vest on a monthly basis thereafter, subject to the Reporting Person's continuous service through such vesting date"}],"balance_after":0,"derivative":{"exercise_price":5.3,"expiration_date":"2033-12-19","underlying":"Common Stock","underlying_shares":247290},"source":{"system":"sec-edgar","filing":"0001999480-25-000063","document":"wk-form4_1752009676.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1999480/000199948025000063/wk-form4_1752009676.xml","form_type":"4"}},{"id":1090752,"issuer":{"id":4755,"kind":"organization","name":"Alto Neuroscience, Inc.","symbol":"ANRO"},"owners":[{"id":46948,"kind":"person","name":"Etkin Amit","position":1,"cik":"0002007795","reported_name":"Etkin Amit","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":"2025-07-08T21:21:22.000Z","date":"2025-07-03","kind":"grant","planned":false,"acquired":true,"shares":247290,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The transactions reported herein reflect a one-time stock option repricing (the \"Option Repricing\") effective on July 3, 2025 (the \"Repricing Date\"). The Option Repricing applies to options with exercise prices greater than $2.35 per share held by continuing employees of the Issuer as of the Repricing Date."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Pursuant to the Option Repricing, the exercise price of the repriced options has been amended to reduce the exercise price to $2.35 per share, the closing price of the Issuer's common stock on the Repricing Date. However, if an employee exercises a repriced option before the end of a retention period of one year (subject to earlier termination in certain circumstances), such employee will be required to pay the original exercise price per share of such repriced option. There is no change to the vesting schedules, expiration dates of, or number of shares underlying the repriced options."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"One-third (1/3rd) of the shares underlying the option vested upon the completion of the Issuer's initial public offering and two-thirds (2/3) of the shares underlying the option vest over a period of four years. 25% of the shares underlying the time-based portion vested on December 20, 2024, and 1/48 of the shares underlying the time-based portion vested or shall vest on a monthly basis thereafter, subject to the Reporting Person's continuous service through such vesting date"}],"balance_after":247290,"derivative":{"exercise_price":2.35,"expiration_date":"2033-12-19","underlying":"Common Stock","underlying_shares":247290},"source":{"system":"sec-edgar","filing":"0001999480-25-000063","document":"wk-form4_1752009676.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1999480/000199948025000063/wk-form4_1752009676.xml","form_type":"4"}},{"id":1090751,"issuer":{"id":4755,"kind":"organization","name":"Alto Neuroscience, Inc.","symbol":"ANRO"},"owners":[{"id":46948,"kind":"person","name":"Etkin Amit","position":1,"cik":"0002007795","reported_name":"Etkin Amit","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":"2025-07-08T21:21:22.000Z","date":"2025-07-03","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":34620,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The transactions reported herein reflect a one-time stock option repricing (the \"Option Repricing\") effective on July 3, 2025 (the \"Repricing Date\"). The Option Repricing applies to options with exercise prices greater than $2.35 per share held by continuing employees of the Issuer as of the Repricing Date."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Pursuant to the Option Repricing, the exercise price of the repriced options has been amended to reduce the exercise price to $2.35 per share, the closing price of the Issuer's common stock on the Repricing Date. However, if an employee exercises a repriced option before the end of a retention period of one year (subject to earlier termination in certain circumstances), such employee will be required to pay the original exercise price per share of such repriced option. There is no change to the vesting schedules, expiration dates of, or number of shares underlying the repriced options."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"25% of the shares underlying the option vested on January 1, 2024, and one forty-eighth (1/48th) of the shares underlying the option vested or shall vest in monthly installments thereafter, subject to the Reporting Person's continuous service through each such vesting date."}],"balance_after":0,"derivative":{"exercise_price":6.23,"expiration_date":"2033-04-13","underlying":"Common Stock","underlying_shares":34620},"source":{"system":"sec-edgar","filing":"0001999480-25-000063","document":"wk-form4_1752009676.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1999480/000199948025000063/wk-form4_1752009676.xml","form_type":"4"}},{"id":1090750,"issuer":{"id":4755,"kind":"organization","name":"Alto Neuroscience, Inc.","symbol":"ANRO"},"owners":[{"id":46948,"kind":"person","name":"Etkin Amit","position":1,"cik":"0002007795","reported_name":"Etkin Amit","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":"2025-07-08T21:21:22.000Z","date":"2025-07-03","kind":"grant","planned":false,"acquired":true,"shares":34620,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The transactions reported herein reflect a one-time stock option repricing (the \"Option Repricing\") effective on July 3, 2025 (the \"Repricing Date\"). The Option Repricing applies to options with exercise prices greater than $2.35 per share held by continuing employees of the Issuer as of the Repricing Date."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Pursuant to the Option Repricing, the exercise price of the repriced options has been amended to reduce the exercise price to $2.35 per share, the closing price of the Issuer's common stock on the Repricing Date. However, if an employee exercises a repriced option before the end of a retention period of one year (subject to earlier termination in certain circumstances), such employee will be required to pay the original exercise price per share of such repriced option. There is no change to the vesting schedules, expiration dates of, or number of shares underlying the repriced options."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"25% of the shares underlying the option vested on January 1, 2024, and one forty-eighth (1/48th) of the shares underlying the option vested or shall vest in monthly installments thereafter, subject to the Reporting Person's continuous service through each such vesting date."}],"balance_after":34620,"derivative":{"exercise_price":2.35,"expiration_date":"2033-04-13","underlying":"Common Stock","underlying_shares":34620},"source":{"system":"sec-edgar","filing":"0001999480-25-000063","document":"wk-form4_1752009676.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1999480/000199948025000063/wk-form4_1752009676.xml","form_type":"4"}},{"id":1278928,"issuer":{"id":4755,"kind":"organization","name":"Alto Neuroscience, Inc.","symbol":"ANRO"},"owners":[{"id":46948,"kind":"person","name":"Etkin Amit","position":1,"cik":"0002007795","reported_name":"Etkin Amit","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":"2025-02-07T21:21:28.000Z","date":"2025-02-05","kind":"grant","planned":false,"acquired":true,"shares":215000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"25% of the shares underlying the option shall vest on February 5, 2026, and one forty-eighth (1/48th) of the shares underlying the option shall vest in monthly installments thereafter, subject to the Reporting Person's continuous service through each such vesting date."}],"balance_after":215000,"derivative":{"exercise_price":4.2,"expiration_date":"2035-02-04","underlying":"Common Stock","underlying_shares":215000},"source":{"system":"sec-edgar","filing":"0001999480-25-000013","document":"wk-form4_1738963279.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1999480/000199948025000013/wk-form4_1738963279.xml","form_type":"4"}},{"id":1597761,"issuer":{"id":4755,"kind":"organization","name":"Alto Neuroscience, Inc.","symbol":"ANRO"},"owners":[{"id":46948,"kind":"person","name":"Etkin Amit","position":1,"cik":"0002007795","reported_name":"Etkin Amit","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":"2024-03-05T23:00:27.000Z","date":"2024-03-01","kind":"grant","planned":false,"acquired":true,"shares":223000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"25% of the shares underlying the option shall vest on March 1, 2025, and one forty-eighth (1/48th) of the shares underlying the option shall vest in monthly installments thereafter, subject to the Reporting Person's continuous service through each such vesting date."}],"balance_after":223000,"derivative":{"exercise_price":14.88,"expiration_date":"2034-02-28","underlying":"Common Stock","underlying_shares":223000},"source":{"system":"sec-edgar","filing":"0001415889-24-006822","document":"form4-03052024_060301.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1999480/000141588924006822/form4-03052024_060301.xml","form_type":"4"}},{"id":1597760,"issuer":{"id":4755,"kind":"organization","name":"Alto Neuroscience, Inc.","symbol":"ANRO"},"owners":[{"id":46948,"kind":"person","name":"Etkin Amit","position":1,"cik":"0002007795","reported_name":"Etkin Amit","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2024-03-05T23:00:27.000Z","date":"2024-03-01","kind":"grant","planned":false,"acquired":true,"shares":34711,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a restricted stock unit (\"RSU\") award. The RSUs shall vest in two equal installments on September 1, 2025 and March 1, 2026, subject to the Reporting Person's continuous service through each such vesting date."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Each RSU represents a contingent right to receive one share of common stock."}],"balance_after":1240176,"source":{"system":"sec-edgar","filing":"0001415889-24-006822","document":"form4-03052024_060301.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1999480/000141588924006822/form4-03052024_060301.xml","form_type":"4"}},{"id":1655500,"issuer":{"id":4755,"kind":"organization","name":"Alto Neuroscience, Inc.","symbol":"ANRO"},"owners":[{"id":46948,"kind":"person","name":"Etkin Amit","position":1,"cik":"0002007795","reported_name":"Etkin Amit","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Series B Preferred Stock","published_at":"2024-02-07T21:36:56.000Z","date":"2024-02-06","kind":"exercise","planned":false,"acquired":false,"shares":25000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Series B Preferred Stock was convertible at any time, at the holder's election, and automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering on a 2.1226069 for 1 basis and had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Series B Preferred Stock was convertible at any time, at the holder's election, and automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering on a 2.1226069 for 1 basis and had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Series B Preferred Stock was convertible at any time, at the holder's election, and automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering on a 2.1226069 for 1 basis and had no expiration date."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":11777},"source":{"system":"sec-edgar","filing":"0001415889-24-002934","document":"form4-02072024_090241.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1999480/000141588924002934/form4-02072024_090241.xml","form_type":"4"}},{"id":1655499,"issuer":{"id":4755,"kind":"organization","name":"Alto Neuroscience, Inc.","symbol":"ANRO"},"owners":[{"id":46948,"kind":"person","name":"Etkin Amit","position":1,"cik":"0002007795","reported_name":"Etkin Amit","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2024-02-07T21:36:56.000Z","date":"2024-02-06","kind":"purchase","planned":false,"acquired":true,"shares":3125,"price":16,"value":50000.0,"ownership":{"direct":true},"balance_after":1205465,"source":{"system":"sec-edgar","filing":"0001415889-24-002934","document":"form4-02072024_090241.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1999480/000141588924002934/form4-02072024_090241.xml","form_type":"4"}},{"id":1655498,"issuer":{"id":4755,"kind":"organization","name":"Alto Neuroscience, Inc.","symbol":"ANRO"},"owners":[{"id":46948,"kind":"person","name":"Etkin Amit","position":1,"cik":"0002007795","reported_name":"Etkin Amit","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2024-02-07T21:36:56.000Z","date":"2024-02-06","kind":"exercise","planned":false,"acquired":true,"shares":11777,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each share of Series B Preferred Stock was convertible at any time, at the holder's election, and automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering on a 2.1226069 for 1 basis and had no expiration date."}],"balance_after":1202340,"source":{"system":"sec-edgar","filing":"0001415889-24-002934","document":"form4-02072024_090241.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1999480/000141588924002934/form4-02072024_090241.xml","form_type":"4"}}]}