COAG

insider transactions

Hemab Therapeutics Holdings, Inc. — buys & sells by directors, officers and 10% owners (SEC Form 4).

30D 90D 1Y

Cluster buy signal: 2 different insiders made open-market purchases in the last 90 days, totalling $55.5M.

Net shares · 90d

+3.0M

3.0M buy · 0 sell

Net value · 90d

$55.5M

$55.5M in · $0 out

Sentiment · 90d

Net buying

100% buying · 0% selling

Open-market trades · 90d

3.0M buy · 0 sell

Net buy / sell volume

Tap or hover the chart for daily net volume. Green = net buying, red = net selling.

All transactions

Buy·P
Jun 16, 26

RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / Peter Kolchinsky / Rajeev M. Shah

10% Owner

$1.5M

61.5K sh · $24.98

Own +1%
Buy·P
Jun 15, 26

RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / Peter Kolchinsky / Rajeev M. Shah

10% Owner

$153.0K

6.1K sh · $24.89

Own +0%
Buy·P
May 20, 26

RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / Peter Kolchinsky / Rajeev M. Shah

10% Owner

$24.8K

996 sh · $24.94

Own +0%
Buy·P
May 19, 26

RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / Peter Kolchinsky / Rajeev M. Shah

10% Owner

$94.9K

3.8K sh · $24.97

Own +0%
Buy·P
May 12, 26

RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / Peter Kolchinsky / Rajeev M. Shah

10% Owner

$159.0K

6.4K sh · $24.90

Own +0%
Buy·P
May 11, 26

RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / Peter Kolchinsky / Rajeev M. Shah

10% Owner

$643.0K

25.7K sh · $25.00

Own +0%
Buy·P
May 11, 26

RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / Peter Kolchinsky / Rajeev M. Shah

10% Owner

$346.2K

14.1K sh · $24.47

Own +0%
Buy·P
May 8, 26

RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / Peter Kolchinsky / Rajeev M. Shah

10% Owner

$37.0K

1.5K sh · $24.98

Own +0%
Buy·P
May 7, 26

RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / Peter Kolchinsky / Rajeev M. Shah

10% Owner

$49.5K

2.0K sh · $24.95

Own +0%
Buy·P
May 7, 26

RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / Peter Kolchinsky / Rajeev M. Shah

10% Owner

$192.8K

7.9K sh · $24.34

Own +0%
Buy·P
May 6, 26

RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah

Director, 10% Owner

$1.3M

53.4K sh · $24.83

Own +1%
Buy·P
May 6, 26

RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah

Director, 10% Owner

$347.3K

14.6K sh · $23.77

Own +0%
Buy·P
May 5, 26

RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah

Director, 10% Owner

$256.7K

10.3K sh · $25.00

Own +0%
Buy·P
May 5, 26

RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah

Director, 10% Owner

$2.1M

87.1K sh · $24.59

Own +1%
Exercise·C
May 4, 26

John Maraganore

Director

$0

817 sh

Own New
Exercise·C
May 4, 26

John Maraganore

Director

—

18.0K sh

Own New
Exercise·C
May 4, 26

Novo Holdings A/S

10% Owner

$0

32.7K sh

Own New
Exercise·C
May 4, 26

Novo Holdings A/S

10% Owner

$0

62.1K sh

Own New
Exercise·C
May 4, 26

Novo Holdings A/S

10% Owner

$0

71.9K sh

Own New
Exercise·C
May 4, 26

Novo Holdings A/S

10% Owner

$0

23.3K sh

Own New
Exercise·C
May 4, 26

Novo Holdings A/S

10% Owner

—

4.2M sh

Own New
Exercise·C
May 4, 26

RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah

Director, 10% Owner

—

10.1K sh

Own New
Exercise·C
May 4, 26

RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah

Director, 10% Owner

—

57.0K sh

Own New
Exercise·C
May 4, 26

RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah

Director, 10% Owner

—

18.1K sh

Own New
Exercise·C
May 4, 26

RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah

Director, 10% Owner

—

42.3K sh

Own New
Exercise·C
May 4, 26

RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah

Director, 10% Owner

—

27.7K sh

Own New
Exercise·C
May 4, 26

RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah

Director, 10% Owner

—

64.7K sh

Own New
Buy·P
May 4, 26

RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah

Director, 10% Owner

$2.4M

133.8K sh · $18.00

Own +60%
Buy·P
May 4, 26

RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah

Director, 10% Owner

$45.7M

2.5M sh · $18.00

Own +70%
Exercise·C
May 4, 26

RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah

Director, 10% Owner

—

221.2K sh

Own New
Exercise·C
May 4, 26

RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah

Director, 10% Owner

—

1.0M sh

Own New
Exercise·C
May 4, 26

RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah

Director, 10% Owner

—

3.6M sh

Own New
Grant·A
Apr 30, 26

Catherine Madigan

Chief Medical Officer

$0

49.0K sh

Own New
Grant·A
Apr 30, 26

Mads Nikolaj Behrndt-Eriksen KEY

Chief Financial Officer and G…

$0

49.0K sh

Own New

Date▾	Insider	Role	Type	Shares	Own Δ	Price	Value
Jun 16, 2026	RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / Peter Kolchinsky / Rajeev M. Shah	10% Owner	Buy P	61.5K	+1%	$24.98	$1.5M
Jun 15, 2026	RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / Peter Kolchinsky / Rajeev M. Shah	10% Owner	Buy P	6.1K	+0%	$24.89	$153.0K
May 20, 2026	RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / Peter Kolchinsky / Rajeev M. Shah	10% Owner	Buy P	996	+0%	$24.94	$24.8K
May 19, 2026	RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / Peter Kolchinsky / Rajeev M. Shah	10% Owner	Buy P	3.8K	+0%	$24.97	$94.9K
May 12, 2026	RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / Peter Kolchinsky / Rajeev M. Shah	10% Owner	Buy P	6.4K	+0%	$24.90	$159.0K
May 11, 2026	RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / Peter Kolchinsky / Rajeev M. Shah	10% Owner	Buy P	25.7K	+0%	$25.00	$643.0K
May 11, 2026	RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / Peter Kolchinsky / Rajeev M. Shah	10% Owner	Buy P	14.1K	+0%	$24.47	$346.2K
May 8, 2026	RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / Peter Kolchinsky / Rajeev M. Shah	10% Owner	Buy P	1.5K	+0%	$24.98	$37.0K
May 7, 2026	RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / Peter Kolchinsky / Rajeev M. Shah	10% Owner	Buy P	2.0K	+0%	$24.95	$49.5K
May 7, 2026	RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / Peter Kolchinsky / Rajeev M. Shah	10% Owner	Buy P	7.9K	+0%	$24.34	$192.8K
May 6, 2026	RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah	Director, 10% Owner	Buy P	53.4K	+1%	$24.83	$1.3M
May 6, 2026	RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah	Director, 10% Owner	Buy P	14.6K	+0%	$23.77	$347.3K
May 5, 2026	RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah	Director, 10% Owner	Buy P	10.3K	+0%	$25.00	$256.7K
May 5, 2026	RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah	Director, 10% Owner	Buy P	87.1K	+1%	$24.59	$2.1M
May 4, 2026	John Maraganore	Director	Exercise C	817	New	—	$0
May 4, 2026	John Maraganore	Director	Exercise C	18.0K	New	—	—
May 4, 2026	Novo Holdings A/S	10% Owner	Exercise C	32.7K	New	—	$0
May 4, 2026	Novo Holdings A/S	10% Owner	Exercise C	62.1K	New	—	$0
May 4, 2026	Novo Holdings A/S	10% Owner	Exercise C	71.9K	New	—	$0
May 4, 2026	Novo Holdings A/S	10% Owner	Exercise C	23.3K	New	—	$0
May 4, 2026	Novo Holdings A/S	10% Owner	Exercise C	4.2M	New	—	—
May 4, 2026	RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah	Director, 10% Owner	Exercise C	10.1K	New	—	—
May 4, 2026	RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah	Director, 10% Owner	Exercise C	57.0K	New	—	—
May 4, 2026	RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah	Director, 10% Owner	Exercise C	18.1K	New	—	—
May 4, 2026	RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah	Director, 10% Owner	Exercise C	42.3K	New	—	—
May 4, 2026	RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah	Director, 10% Owner	Exercise C	27.7K	New	—	—
May 4, 2026	RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah	Director, 10% Owner	Exercise C	64.7K	New	—	—
May 4, 2026	RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah	Director, 10% Owner	Buy P	133.8K	+60%	$18.00	$2.4M
May 4, 2026	RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah	Director, 10% Owner	Buy P	2.5M	+70%	$18.00	$45.7M
May 4, 2026	RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah	Director, 10% Owner	Exercise C	221.2K	New	—	—
May 4, 2026	RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah	Director, 10% Owner	Exercise C	1.0M	New	—	—
May 4, 2026	RA CAPITAL MANAGEMENT, L.P. / RA Capital Healthcare Fund LP / RA Capital Nexus Fund II, L.P. / RA Capital Nexus Fund IV, L.P. / Peter Kolchinsky / Rajeev M. Shah	Director, 10% Owner	Exercise C	3.6M	New	—	—
Apr 30, 2026	Catherine Madigan	Chief Medical Officer	Grant A	49.0K	New	—	$0
Apr 30, 2026	Mads Nikolaj Behrndt-Eriksen KEY	Chief Financial Officer and General Manager	Grant A	49.0K	New	—	$0

About COAG insider trading

This page tracks insider transactions for Hemab Therapeutics Holdings, Inc. (COAG) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.