13F

Stock

Pulmatrix, Inc.

PULM · held by 15 managers

Reported value

$425.1K

Holders

15

+3 new · −4 exited

Holders’ est. mark

−$234.3K

Price effect on 10 books still in the name

Largest holder

$140.8K

Renaissance Technologies

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
Renaissance Technologies109.1K$140.8K−$102.6KCut−$106.6K
BlackRock, Inc.54.9K$70.8K−$51.6KCut−$52.6K
GEODE CAPITAL MANAGEMENT, LLC44.6K$57.6K−$38.5KCut−$33.7K
VANGUARD CAPITAL MANAGEMENT LLC33.6K$43.3KHeld
SBI Securities Co., Ltd.30.1K$38.8K−$28.3KCut−$84.4K
VANGUARD FIDUCIARY TRUST CO14.7K$19KHeld
JANE STREET GROUP, LLC14.6K$18.8KNew
State Street13.9K$18K−$13.1KCut−$13.1K
XTX Topco Ltd13.7K$17.6KNew
Tower Research Capital LLC (TRC)207$267−$195Cut−$1.77K
UBS Group AG23$30New
Farther Finance Advisors, LLC7$9−$7Cut−$7
Allworth Financial LP3$4−$3Cut−$3
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO1$1−$1Cut−$1
ROYAL BANK OF CANADA7$0$0Held

Who left

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.