Companies / Hemab Therapeutics Holdings, Inc.
Hemab Therapeutics Holdings, Inc.
Nasdaq: COAGCIK 2114044CAMBRIDGE, MA
Ownership
46.7M shares outstanding · as of Jul 31, 2026
Ownership
| Insiders | 13.87% | 6,480,585 |
| 10%+ / strategic | 8.95% | 4,180,550 |
| Institutions | 0.61% | 283,833 |
| Public float | 76.57% | 35,767,149 |
% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 13
View all →| Insider | % of shares | Shares |
|---|---|---|
RA Capital Management, L.P.Director · 10% owner | 13.80% | 6,444,637 |
Novo Holdings A/S10% owner | 8.95% | 4,180,550 |
Maraganore JohnDirector | 0.08% | 35,948 |
Access Industries Holdings LLC10% owner | — | — |
Access Industries Management, LLC10% owner | — | — |
AI Biotechnology LLC10% owner | — | — |
Ai Den-Mab LLC10% owner | — | — |
Blavatnik Len10% owner | — | — |
Kolchinsky PeterDirector · 10% owner | — | — |
RA Capital Healthcare Fund LPDirector · 10% owner | — | — |
Institutional holders 1
View all →| Holder | Value | % of shares |
|---|---|---|
| $10.43M | 0.61% |
Activity
InsidersInstitutions
What insiders are doing in this stock (Form 4).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| May 4, 2026 | RA Capital Management, L.P. Director | Buy | Common Stock | $45.74M | +2.5M +70.44% | 6,149,096 13.16% of shares | high |
| May 4, 2026 | RA Capital Management, L.P. Director | Buy | Common Stock | $2.41M | +134K +60.47% | 354,938 0.76% of shares | high |
| May 5, 2026 | RA Capital Management, L.P. Director | Buy | Common Stock | $2.14M | +87K +1.42% | 6,236,239 13.35% of shares | high |
| Jun 16, 2026 | RA Capital Management, L.P. Director | Buy | Common Stock | $1.54M | +62K +0.96% | 6,444,637 13.80% of shares | high |
| May 6, 2026 | RA Capital Management, L.P. Director | Buy | Common Stock | $1.33M | +53K +0.85% | 6,314,525 13.52% of shares | high |
| May 11, 2026 | RA Capital Management, L.P. Director | Buy | Common Stock | $643.0K | +26K +0.41% | 6,365,783 13.63% of shares | high |
| May 6, 2026 | RA Capital Management, L.P. Director | Buy | Common Stock | $347.3K | +15K +0.23% | 6,261,118 13.40% of shares | medium |
| May 11, 2026 | RA Capital Management, L.P. Director | Buy | Common Stock | $346.2K | +14K +0.22% | 6,340,063 13.57% of shares | medium |
5%+ ownership events
Schedule 13D / 13G
| Filer | Stance | % of class |
|---|---|---|
| Invus, L.P. | Passive13G | — |
| RA Capital Management, L.P. | Passive13G | — |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| COAG | — | 423494103 |