FRAMINGHAM, MA
PULMATRIX, INC.PULM— Latest position per institution from SEC 13F filings
15
Institutional holders
591.81K
Total shares held
1.03M
Estimated value
29.59K
Avg. position size
RENAISSANCE TECHNOLOGIES LLC
CIK 1037389
Shares
109.15K
Value
140.80K
Filed
Mar 31, 2026
BLACKROCK, INC.
CIK 2012383
Shares
54.90K
Value
70.82K
Filed
Mar 31, 2026
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
54.90K
Value
105.95K
Filed
Jun 30, 2024
SABBY MANAGEMENT, LLC
CIK 1535610
Shares
54.19K
Value
100.79K
Filed
Dec 31, 2023
VANGUARD GROUP INC
CIK 102909
Shares
47.08K
Value
104.99K
Filed
Dec 31, 2025
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
44.63K
Value
57.59K
Filed
Mar 31, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
33.59K
Value
43.34K
Filed
Mar 31, 2026
SBI SECURITIES CO., LTD.
CIK 1851815
Shares
30.09K
Value
38.81K
Filed
Mar 31, 2026
MARINER, LLC
CIK 1373442
Shares
25K
Value
97.00
Filed
Dec 31, 2022
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 1446194
Shares
24.91K
Value
73.48K
Filed
Mar 31, 2023
DRW SECURITIES, LLC
CIK 1481986
Shares
20.50K
Value
45.73K
Filed
Dec 31, 2025
VANGUARD FIDUCIARY TRUST CO
CIK 933478
Shares
14.71K
Value
18.98K
Filed
Mar 31, 2026
JANE STREET GROUP, LLC
CIK 1595888
Shares
14.58K
Value
18.81K
Filed
Mar 31, 2026
STATE STREET CORP
CIK 93751
Shares
13.95K
Value
17.99K
Filed
Mar 31, 2026
XTX TOPCO LTD
CIK 1828301
Shares
13.67K
Value
17.63K
Filed
Mar 31, 2026
HRT FINANCIAL LP
CIK 1475597
Shares
12.11K
Value
32.00
Filed
Jun 30, 2023
CITADEL ADVISORS LLC
CIK 1423053
Shares
10.34K
Value
22.13K
Filed
Sep 30, 2024
DIMENSIONAL FUND ADVISORS LP
CIK 354204
Shares
10.33K
Value
23.03K
Filed
Dec 31, 2025
JONES FINANCIAL COMPANIES LLLP
CIK 815917
Shares
1.81K
Value
129.56K
Filed
Mar 31, 2025
BANK OF AMERICA CORP /DE/
CIK 70858
Shares
1.36K
Value
3.04K
Filed
Dec 31, 2025
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | RENAISSANCE TECHNOLOGIES LLC | 1037389 | 109.15K | 140.80K | Mar 31, 2026 |
| 2 | BLACKROCK, INC. | 2012383 | 54.90K | 70.82K | Mar 31, 2026 |
| 3 | BLACKROCK FINANCE, INC. | 1364742 | 54.90K | 105.95K | Jun 30, 2024 |
| 4 | SABBY MANAGEMENT, LLC | 1535610 | 54.19K | 100.79K | Dec 31, 2023 |
| 5 | VANGUARD GROUP INC | 102909 | 47.08K | 104.99K | Dec 31, 2025 |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 44.63K | 57.59K | Mar 31, 2026 |
| 7 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 33.59K | 43.34K | Mar 31, 2026 |
| 8 | SBI SECURITIES CO., LTD. | 1851815 | 30.09K | 38.81K | Mar 31, 2026 |
| 9 | MARINER, LLC | 1373442 | 25K | 97.00 | Dec 31, 2022 |
| 10 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1446194 | 24.91K | 73.48K | Mar 31, 2023 |
| 11 | DRW SECURITIES, LLC | 1481986 | 20.50K | 45.73K | Dec 31, 2025 |
| 12 | VANGUARD FIDUCIARY TRUST CO | 933478 | 14.71K | 18.98K | Mar 31, 2026 |
| 13 | JANE STREET GROUP, LLC | 1595888 | 14.58K | 18.81K | Mar 31, 2026 |
| 14 | STATE STREET CORP | 93751 | 13.95K | 17.99K | Mar 31, 2026 |
| 15 | XTX TOPCO LTD | 1828301 | 13.67K | 17.63K | Mar 31, 2026 |
| 16 | HRT FINANCIAL LP | 1475597 | 12.11K | 32.00 | Jun 30, 2023 |
| 17 | CITADEL ADVISORS LLC | 1423053 | 10.34K | 22.13K | Sep 30, 2024 |
| 18 | DIMENSIONAL FUND ADVISORS LP | 354204 | 10.33K | 23.03K | Dec 31, 2025 |
| 19 | JONES FINANCIAL COMPANIES LLLP | 815917 | 1.81K | 129.56K | Mar 31, 2025 |
| 20 | BANK OF AMERICA CORP /DE/ | 70858 | 1.36K | 3.04K | Dec 31, 2025 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.