{"transactions":[{"id":926671,"issuer":{"id":5551,"kind":"organization","name":"CARLSMED, INC.","symbol":"CARL"},"owners":[{"id":68361,"kind":"person","name":"Casey Niall","position":1,"cik":"0002077161","reported_name":"Casey Niall","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief IP Officer"}}],"security":"Common Stock","published_at":"2026-01-30T22:23:14.000Z","date":"2026-01-28","kind":"grant","planned":false,"acquired":true,"shares":44977,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Each restricted stock unit (\"RSU\") represents a contingent right to receive one (1) share of the Issuer's Common Stock. The RSUs will vest in three equal annual installments beginning on the first anniversary of the grant date."}],"balance_after":982562,"source":{"system":"sec-edgar","filing":"0001193125-26-032073","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1794546/000119312526032073/ownership.xml","form_type":"4"}},{"id":1081815,"issuer":{"id":5551,"kind":"organization","name":"CARLSMED, INC.","symbol":"CARL"},"owners":[{"id":68361,"kind":"person","name":"Casey Niall","position":1,"cik":"0002077161","reported_name":"Casey Niall","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief IP Officer, Secretary"}}],"security":"Series B Preferred Stock","published_at":"2025-07-25T00:28:47.000Z","date":"2025-07-24","kind":"exercise","planned":false,"acquired":false,"shares":3612,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"These securities were previously reported on a Form 3 filed by the Reporting Person as preferred stock of the Issuer. Each share of preferred stock of the Issuer converted into one share of the Issuer's common stock immediately prior to the closing of the Issuer's initial public offering on a 1-to-1 basis without payment of additional consideration. The preferred stock has no expiration date."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These securities were previously reported on a Form 3 filed by the Reporting Person as preferred stock of the Issuer. Each share of preferred stock of the Issuer converted into one share of the Issuer's common stock immediately prior to the closing of the Issuer's initial public offering on a 1-to-1 basis without payment of additional consideration. The preferred stock has no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These securities were previously reported on a Form 3 filed by the Reporting Person as preferred stock of the Issuer. Each share of preferred stock of the Issuer converted into one share of the Issuer's common stock immediately prior to the closing of the Issuer's initial public offering on a 1-to-1 basis without payment of additional consideration. The preferred stock has no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"These securities were previously reported on a Form 3 filed by the Reporting Person as preferred stock of the Issuer. Each share of preferred stock of the Issuer converted into one share of the Issuer's common stock immediately prior to the closing of the Issuer's initial public offering on a 1-to-1 basis without payment of additional consideration. The preferred stock has no expiration date."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":3612},"source":{"system":"sec-edgar","filing":"0000950170-25-098530","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1794546/000095017025098530/ownership.xml","form_type":"4"}},{"id":1081814,"issuer":{"id":5551,"kind":"organization","name":"CARLSMED, INC.","symbol":"CARL"},"owners":[{"id":68361,"kind":"person","name":"Casey Niall","position":1,"cik":"0002077161","reported_name":"Casey Niall","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief IP Officer, Secretary"}}],"security":"Stock Options (Right to Buy)","published_at":"2025-07-25T00:28:47.000Z","date":"2025-07-22","kind":"grant","planned":false,"acquired":true,"shares":53571,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The unvested stock options are convertible into approximately 53,571 shares of the Issuer's common stock and will begin to vest in equal installments on each quarterly anniversary of July 22, 2025 (the \"Grant Date\"), such that all of the stock options will be vested on the fourth anniversary of the Grant Date, provided that the Reporting Person remains in continuous service through each applicable vesting date."}],"balance_after":166049,"derivative":{"exercise_price":15,"expiration_date":"2035-07-09","underlying":"Common Stock","underlying_shares":53571},"source":{"system":"sec-edgar","filing":"0000950170-25-098530","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1794546/000095017025098530/ownership.xml","form_type":"4"}},{"id":1081813,"issuer":{"id":5551,"kind":"organization","name":"CARLSMED, INC.","symbol":"CARL"},"owners":[{"id":68361,"kind":"person","name":"Casey Niall","position":1,"cik":"0002077161","reported_name":"Casey Niall","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief IP Officer, Secretary"}}],"security":"Common Stock","published_at":"2025-07-25T00:28:47.000Z","date":"2025-07-24","kind":"exercise","planned":false,"acquired":true,"shares":3612,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These securities were previously reported on a Form 3 filed by the Reporting Person as preferred stock of the Issuer. Each share of preferred stock of the Issuer converted into one share of the Issuer's common stock immediately prior to the closing of the Issuer's initial public offering on a 1-to-1 basis without payment of additional consideration. The preferred stock has no expiration date."}],"balance_after":937585,"source":{"system":"sec-edgar","filing":"0000950170-25-098530","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1794546/000095017025098530/ownership.xml","form_type":"4"}}]}