Pulmatrix
PULM
14 hedge funds and large institutions have $1.68M invested in Pulmatrix in 2025 Q3 according to their latest regulatory filings, with 4 funds opening new positions, 3 increasing their positions, 4 reducing their positions, and 2 closing their positions.
161% more capital inflows, than outflows
Capital inflows: $94.5K | Capital outflows: $36.2K
100% more first-time investments, than exits
New positions opened: 4 | Existing positions closed: 2
17% more funds holding
Funds holding: 12 → 14 (+2)
0.3% more ownership
Funds ownership: 9.17% → 9.47% (+0.3%)
25% less repeat investments, than reductions
Existing positions increased: 3 | Existing positions reduced: 4
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Dimensional Fund Advisors
Austin,
Texas
|
+$57.3K |
| 2 |
Renaissance Technologies
New York
|
+$19K |
| 3 |
Vanguard Group
Malvern,
Pennsylvania
|
+$12.7K |
| 4 |
Tower Research Capital (TRC)
New York
|
+$5.46K |
| 5 |
Farther Finance Advisors
San Francisco,
California
|
+$37 |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
UBS Group
Zurich,
Switzerland
|
-$28.3K |
| 2 |
SBI Securities
Tokyo,
Japan
|
-$6.5K |
| 3 |
Geode Capital Management
Boston,
Massachusetts
|
-$744 |
| 4 |
Citigroup
New York
|
-$621 |
| 5 |
Bank of America
Charlotte,
North Carolina
|
-$16 |
PULM Hedge Fund Activity: Q3 2025 in Review
14 of the 7,657 institutional investors tracked by Wall St. Rank reported a position in Pulmatrix (PULM) for Q3 2025, worth a combined $1.68M — down 27% from $2.31M a quarter earlier.
Buyers outnumbered sellers: 4 funds opened new PULM positions and 2 closed out — a net gain of 2 holders — while 3 added to existing stakes and 4 trimmed.
The largest buyer was Dimensional Fund Advisors, opening a new position worth an estimated $57.3K. The largest seller was UBS Group, cutting an estimated $28.3K.
- 14 institutional investors held Pulmatrix (PULM) as of Q3 2025, up from 12 in Q2 2025.
- Funds reported $1.68M of Pulmatrix stock for Q3 2025, down 27% quarter-over-quarter.
- 4 funds opened new Pulmatrix positions in Q3 2025 and 2 closed out, a net change of +2 holders.
- The largest Pulmatrix buyer in Q3 2025 was Dimensional Fund Advisors, an estimated $57.3K added.
- The largest Pulmatrix seller in Q3 2025 was UBS Group, an estimated $28.3K sold.
Based on aggregated 13F filings for Q3 2025.