Filing Flows › Pulmatrix (PULM) › Who owns the stock
Who owns Pulmatrix (PULM) stock
16 funds reported Pulmatrix (PULM) shares in their latest 13F filings, worth $674K in all. The largest holder is Renaissance Technologies LLC ($209K). Last quarter 5 funds added to their stakes and 5 cut them.
Largest holders (13F)
| Fund | Shares | Value | Change | Quarter |
|---|---|---|---|---|
| Renaissance Technologies LLC | 122,698 | $209K | increase | 2026-06-30 |
| Vanguard Group | 47,082 | $105K | decrease | 2025-12-31 |
| BlackRock | 54,899 | $93K | unchanged | 2026-06-30 |
| Geode Capital Management, LLC | 33,299 | $57K | decrease | 2026-06-30 |
| Vanguard Capital Management LLC | 32,294 | $55K | decrease | 2026-06-30 |
| SBI Securities | 31,285 | $53K | increase | 2026-06-30 |
| Shay Capital LLC | 18,857 | $32K | new | 2026-06-30 |
| Vanguard Fiduciary Trust | 14,715 | $25K | unchanged | 2026-06-30 |
| State Street | 13,945 | $24K | unchanged | 2026-06-30 |
| XTX Topco | 11,991 | $20K | decrease | 2026-06-30 |
| UBS Group AG | 515 | $1K | increase | 2026-06-30 |
| Farther Finance Advisors, LLC | 7 | $11 | unchanged | 2026-09-30 |
| Barclays | 4 | $7 | decrease | 2026-09-30 |
| Allworth Financial LP | 3 | $6 | unchanged | 2026-06-30 |
| Northwestern Mutual Wealth Management | 1 | $2 | unchanged | 2026-06-30 |
Pulmatrix's latest quarter
Pulmatrix, Q4 2024: revenue $3K (-100% year over year), net loss $2.0M, operating cash flow −$1.3M. The chart follows the revenue to costs, profit and cash.
Questions
Who owns the most PULM stock?
By the latest 13F filings: Renaissance Technologies LLC ($209K); Vanguard Group ($105K); BlackRock ($93K); Geode Capital Management, LLC ($57K); Vanguard Capital Management LLC ($55K).
What is the short interest in PULM?
43,210 shares were sold short at the 2026-10-15 settlement, -11.85% of the float.
Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.