Comparable stake leader
RENAISSANCE TECHNOLOGIES LLC
SEC ownership of Pulmatrix, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001574235.
Disclosed value leader
RENAISSANCE TECHNOLOGIES LLC
Comparable rows
0/22
Latest evidence
31 Mar 2026
- Public ticker
- PULM on Nasdaq
- Parsed ownership sources
- 13F and 3/4/5
- Largest SEC-reported holder
- RENAISSANCE TECHNOLOGIES LLC
- Latest parsed ownership date
- 31 Mar 2026
- Issuer CIK
- 0001574235
- Issuer location
- Framingham, MA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
1 signal
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Pulmatrix, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
RENAISSANCE TECHNOLOGIES LLC
Disclosed value leader
RENAISSANCE TECHNOLOGIES LLC
Comparable rows
0/22
Latest evidence
31 Mar 2026
13F
3/4/5
Highest disclosed value: $140,801
22 rows are not safely comparable across share classes.
Showing 1-8 of 22 holder rows.
Quick read
RENAISSANCE TECHNOLOGIES LLC has the largest disclosed position value at $140.8K.
0 of 22 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens RENAISSANCE TECHNOLOGIES LLC's linked filing trail.
Disclosed position value
Top 5
RENAISSANCE TECHNOLOGIES LLC
$140.8K
BlackRock, Inc.
$70.8K
GEODE CAPITAL MANAGEMENT, LLC
$57.6K
VANGUARD CAPITAL MANAGEMENT LLC
$43.3K
SBI Securities Co., Ltd.
$38.8K
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-8 of 22 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC |
13F
Company
|
—
class O/S missing
|
$140,801
109,148 shares
|
— | 31 Mar 2026 |
| BlackRock, Inc. |
13F
Company
|
—
class O/S missing
|
$70,820
54,899 shares
|
— | 31 Mar 2026 |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
Company
|
—
class O/S missing
|
$57,589
44,629 shares
|
— | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
Company
|
—
class O/S missing
|
$43,336
33,594 shares
|
— | 31 Mar 2026 |
| SBI Securities Co., Ltd. |
13F
Company
|
—
class O/S missing
|
$38,810
30,085 shares
|
— | 31 Mar 2026 |
| VANGUARD FIDUCIARY TRUST CO |
13F
Company
|
—
class O/S missing
|
$18,982
14,715 shares
|
— | 31 Mar 2026 |
| JANE STREET GROUP, LLC |
13F
Company
|
—
class O/S missing
|
$18,814
14,584 shares
|
— | 31 Mar 2026 |
| STATE STREET CORP |
13F
Company
|
—
class O/S missing
|
$17,989
13,945 shares
|
— | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 12 Jun 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-9 of 9 reporting-owner rows connected to Pulmatrix, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
9
Largest Forms 3/4/5 holder
Anand Varadan
Net 12M change
$0
Latest report
26 Jan 2023
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Anand Varadan | Director | Mixed | 26 Jan 2023 | |||
| Michael J. Higgins | Director | Mixed | 26 Jan 2023 | |||
| Teofilo D. Raad | Chief Executive Officer, Director | Mixed | 26 Jan 2023 | |||
| Michelle Siegert | Vice President, Finance | Mixed | 26 Jan 2023 | |||
| Christopher Cabell | Director | Mixed | 26 Jan 2023 | |||
| Richard P. Batycky | Director | Mixed | 26 Jan 2023 | |||
| Margaret Wasilewski | Chief Medical Officer | Mixed | 26 Jan 2023 | |||
| Todd Bazemore | Director | Mixed | 26 Jan 2023 | |||
| Peter Ludlum | Interim CFO | Mixed | 18 Apr 2022 |
Recent insider transactions for Pulmatrix, Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| No insider transactions were found in the last 12 months for this issuer. | ||||||||||
* marks a reported price that did not pass the local price check.