PulmatrixPULM
13F holders, Q3 2025 (September 30)14holders +2
4new positions
2sold out
1famous investor
$4.86avg. 13F price*
At the end of Q3 2025, 14 institutions reported holding Pulmatrix Inc. (PULM) in their 13F filings, up 2 from Q2 2025. 4 opened new positions and 2 sold out. The largest holders were Renaissance Technologies ($556K), SBI Securities Co., Ltd. ($288K) and BlackRock, Inc. ($269K). One famous investor held it Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- Pulmatrix Inc.
- CUSIP
- 74584P301
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 4 | $53K |
| Exits | 2 | $628 |
All 13F filers, Q2 2025 → Q3 2025: 17,795 shares bought and 6,791 shares sold, net +11,004 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 14 holders
| Renaissance Technologies | 0.00% | Add +3.2% | 114,390 | $556K |
| SBI Securities Co., Ltd. | 0.01% | Reduce -2.0% | 59,342 | $288K |
| BlackRock, Inc. | 0.00% | No change | 55,335 | $269K |
| Vanguard Group Inc. | 0.00% | Add +5.1% | 49,409 | $241K |
| Geode Capital Management, LLC | 0.00% | Reduce -0.3% | 40,944 | $199K |
| State Street Corp. | 0.00% | No change | 13,945 | $68K |
| Dimensional Fund Advisors LP | 0.00% | New | 10,780 | $52K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +252.0% | 1,436 | $7K |
| UBS Group AG | 0.00% | Reduce -97.6% | 129 | $627 |
| Bank of America Corp. | 0.00% | Reduce -8.3% | 33 | $161 |
| Northwestern Mutual Wealth Management Co. | 0.00% | New | 7 | $34 |
| Farther Finance Advisors, LLC | 0.00% | New | 7 | $34 |
| Barclays PLC | 0.00% | New | 3 | $15 |
| Allworth Financial LP | 0.00% | No change | 3 | $15 |
"% of holder's portfolio" is PULM's weight in each manager's 13F, not the share of Pulmatrix Inc. the manager owns.