19 institutions reported holding $425,085 of PULMATRIX INC (PULM) in SEC 13F filings for 2026-03-31. Largest institutional holders: RENAISSANCE TECHNOLOGIES LLC ($140,801), BlackRock, Inc. ($70,820), GEODE CAPITAL MANAGEMENT, LLC ($57,589), VANGUARD CAPITAL MANAGEMENT LLC ($43,336), SBI Securities Co., Ltd. ($38,810). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | RENAISSANCE TECHNOLOGIES LLC | $140,801 | 109,148 | Trimmed |
| 2 | BlackRock, Inc. | $70,820 | 54,899 | Trimmed |
| 3 | GEODE CAPITAL MANAGEMENT, LLC | $57,589 | 44,629 | Added |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | $43,336 | 33,594 | New |
| 5 | SBI Securities Co., Ltd. | $38,810 | 30,085 | Trimmed |
| 6 | VANGUARD FIDUCIARY TRUST CO | $18,982 | 14,715 | New |
| 7 | JANE STREET GROUP, LLC | $18,814 | 14,584 | New |
| 8 | STATE STREET CORP | $17,989 | 13,945 | Hold |
| 9 | XTX Topco Ltd | $17,633 | 13,669 | New |
| 10 | Tower Research Capital LLC (TRC) | $267 | 207 | Trimmed |
| 11 | UBS Group AG | $30 | 23 | New |
| 12 | Farther Finance Advisors, LLC | $9 | 7 | Hold |
| 13 | Allworth Financial LP | $4 | 3 | Hold |
| 14 | NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | $1 | 1 | Hold |
| 15 | Royal Bank of Canada | $0 | 7 | Added |
| 16 | DRW Securities, LLC | $0 | 0 | Exited |
| 17 | BANK OF AMERICA CORP /DE/ | $0 | 0 | Exited |
| 18 | FLAGSHIP HARBOR ADVISORS, LLC | $0 | 0 | Exited |
| 19 | DIMENSIONAL FUND ADVISORS LP | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31