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Hemab Therapeutics Holdings, Inc. (COAG) — insider trading

Health Care · Nasdaq

Hemab Therapeutics Holdings, Inc. (COAG) has 39 reported SEC Form 4 insider transactions in our data, including 16 open-market purchases among the most recent 39 (latest 2026-06-16).

Recent Form 4 transactions

DateInsiderRoleTypeSharesPriceValueFiling
2026-06-16 RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; Kolchinsky Peter; Shah Rajeev M. 10% owner Open-market purchase 61,523 $24.98 $1.54M Form 4
2026-06-15 RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; Kolchinsky Peter; Shah Rajeev M. 10% owner Open-market purchase 6,146 $24.89 $153.0K Form 4
2026-05-20 RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; Kolchinsky Peter; Shah Rajeev M. 10% owner Open-market purchase 996 $24.94 $24.8K Form 4
2026-05-19 RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; Kolchinsky Peter; Shah Rajeev M. 10% owner Open-market purchase 3,802 $24.97 $94.9K Form 4
2026-05-12 RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; Kolchinsky Peter; Shah Rajeev M. 10% owner Open-market purchase 6,387 $24.90 $159.0K Form 4
2026-05-11 RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; Kolchinsky Peter; Shah Rajeev M. 10% owner Open-market purchase 25,720 $25.00 $643.0K Form 4
2026-05-11 RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; Kolchinsky Peter; Shah Rajeev M. 10% owner Open-market purchase 14,149 $24.47 $346.2K Form 4
2026-05-08 RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; Kolchinsky Peter; Shah Rajeev M. 10% owner Open-market purchase 1,483 $24.98 $37.0K Form 4
2026-05-07 RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; Kolchinsky Peter; Shah Rajeev M. 10% owner Open-market purchase 1,985 $24.95 $49.5K Form 4
2026-05-07 RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; Kolchinsky Peter; Shah Rajeev M. 10% owner Open-market purchase 7,921 $24.34 $192.8K Form 4
2026-05-06 RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; RA Capital Nexus Fund II, L.P.; RA Capital Nexus Fund IV, L.P.; Kolchinsky Peter; Shah Rajeev M. Director, 10% owner Open-market purchase 53,407 $24.83 $1.33M Form 4
2026-05-06 RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; RA Capital Nexus Fund II, L.P.; RA Capital Nexus Fund IV, L.P.; Kolchinsky Peter; Shah Rajeev M. Director, 10% owner Open-market purchase 14,611 $23.77 $347.3K Form 4
2026-05-05 RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; RA Capital Nexus Fund II, L.P.; RA Capital Nexus Fund IV, L.P.; Kolchinsky Peter; Shah Rajeev M. Director, 10% owner Open-market purchase 10,268 $25.00 $256.7K Form 4
2026-05-05 RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; RA Capital Nexus Fund II, L.P.; RA Capital Nexus Fund IV, L.P.; Kolchinsky Peter; Shah Rajeev M. Director, 10% owner Open-market purchase 87,143 $24.59 $2.14M Form 4
2026-05-04 Novo Holdings A/S 10% owner Conversion of derivative (derivative) 32,695 $0.00 $0 Form 4
2026-05-04 Novo Holdings A/S 10% owner Conversion of derivative (derivative) 62,121 $0.00 $0 Form 4
2026-05-04 Novo Holdings A/S 10% owner Conversion of derivative (derivative) 71,866 $0.00 $0 Form 4
2026-05-04 Novo Holdings A/S 10% owner Conversion of derivative (derivative) 23,343 $0.00 $0 Form 4
2026-05-04 Novo Holdings A/S 10% owner Conversion of derivative 4,180,550 Form 4
2026-05-04 RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; RA Capital Nexus Fund II, L.P.; RA Capital Nexus Fund IV, L.P.; Kolchinsky Peter; Shah Rajeev M. Director, 10% owner Conversion of derivative (derivative) 10,054 Form 4
2026-05-04 RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; RA Capital Nexus Fund II, L.P.; RA Capital Nexus Fund IV, L.P.; Kolchinsky Peter; Shah Rajeev M. Director, 10% owner Conversion of derivative (derivative) 56,972 Form 4
2026-05-04 RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; RA Capital Nexus Fund II, L.P.; RA Capital Nexus Fund IV, L.P.; Kolchinsky Peter; Shah Rajeev M. Director, 10% owner Conversion of derivative (derivative) 18,146 Form 4
2026-05-04 RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; RA Capital Nexus Fund II, L.P.; RA Capital Nexus Fund IV, L.P.; Kolchinsky Peter; Shah Rajeev M. Director, 10% owner Conversion of derivative (derivative) 42,341 Form 4
2026-05-04 RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; RA Capital Nexus Fund II, L.P.; RA Capital Nexus Fund IV, L.P.; Kolchinsky Peter; Shah Rajeev M. Director, 10% owner Conversion of derivative (derivative) 27,720 Form 4
2026-05-04 RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; RA Capital Nexus Fund II, L.P.; RA Capital Nexus Fund IV, L.P.; Kolchinsky Peter; Shah Rajeev M. Director, 10% owner Conversion of derivative (derivative) 64,680 Form 4
2026-05-04 RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; RA Capital Nexus Fund II, L.P.; RA Capital Nexus Fund IV, L.P.; Kolchinsky Peter; Shah Rajeev M. Director, 10% owner Open-market purchase 133,750 $18.00 $2.41M Form 4
2026-05-04 RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; RA Capital Nexus Fund II, L.P.; RA Capital Nexus Fund IV, L.P.; Kolchinsky Peter; Shah Rajeev M. Director, 10% owner Open-market purchase 2,541,250 $18.00 $45.74M Form 4
2026-05-04 RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; RA Capital Nexus Fund II, L.P.; RA Capital Nexus Fund IV, L.P.; Kolchinsky Peter; Shah Rajeev M. Director, 10% owner Conversion of derivative 221,188 Form 4
2026-05-04 RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; RA Capital Nexus Fund II, L.P.; RA Capital Nexus Fund IV, L.P.; Kolchinsky Peter; Shah Rajeev M. Director, 10% owner Conversion of derivative 1,009,052 Form 4
2026-05-04 RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; RA Capital Nexus Fund II, L.P.; RA Capital Nexus Fund IV, L.P.; Kolchinsky Peter; Shah Rajeev M. Director, 10% owner Conversion of derivative 3,607,846 Form 4
2026-05-04 MARAGANORE JOHN Director Conversion of derivative (derivative) 817 $0.00 $0 Form 4
2026-05-04 MARAGANORE JOHN Director Conversion of derivative (derivative) 817 $0.00 $0 Form 4
2026-05-04 MARAGANORE JOHN Director Conversion of derivative 17,974 Form 4
2026-05-04 MARAGANORE JOHN Director Conversion of derivative 17,974 Form 4
2026-04-30 Behrndt-Eriksen Mads Nikolaj Officer (See Remarks) Grant / award / vesting (derivative) 49,016 $0.00 $0 Form 4
2026-04-30 Madigan Catherine Officer (Chief Medical Officer) Grant / award / vesting (derivative) 49,016 $0.00 $0 Form 4
2026-01-29 Behrndt-Eriksen Mads Nikolaj Officer (See Remarks) Grant / award / vesting (derivative) 195,206 $0.00 $0 Form 4
2026-01-29 Madigan Catherine Officer (Chief Medical Officer) Grant / award / vesting (derivative) 145,134 $0.00 $0 Form 4
2026-01-29 MARAGANORE JOHN Director Grant / award / vesting (derivative) 107,338 $0.00 $0 Form 4

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Transaction types are the SEC Form 4 codes: open-market purchases (P) and sales (S) are the only rows that reflect open-market conviction. Awards/vesting (A), option exercises (M/X/C), shares withheld for taxes (F) and gifts (G) are compensation or mechanical, not buying or selling on the open market. Sales may be planned and non-discretionary (e.g. a Rule 10b5-1 plan); open-market buying is not a recommendation to buy. Informational only — not financial advice.

Source: SEC EDGAR Form 3/4/5. See the full company profile: Hemab Therapeutics Holdings, Inc. (COAG).

Last updated 2026-06-16 (most recent filing date).

Informational only — NOT financial advice. Insider filings are sourced from SEC EDGAR and shown with their reported dates.