PULM · Pulmatrix, Inc.
$1.53
+0.06 (+3.74%)
At close · Sep 1
Going-concern doubt
— flagged Aug 13, 2026
Substantial doubt about the company's ability to continue as a going concern.
“However, management believes that without the closing of the Merger, given our current cash position and forecasted negative cash flows from operating activities over the next twelve months, there is substantial doubt about our ability to continue as a going concern after the date that is one year from the date that these financial statements are issued.”View the 10-Q filed Aug 13, 2026
Market Cap
$5.51M
Shares
3.65M
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 15
Total Value: $568,693
Total Shares: 334,531
Institutional Ownership Trend
26 quarters
Holder Concentration
Across 15 13F filers · Δ vs Mar 31, 2026Top Holder
36.7%
+3.6 pts
Top 5
82.0%
−0.6 pts
Top 10
100.0%
+0.0 pts
HHI
1,976
Moderately concentrated+156
Quarterly Activity
vs Mar 31, 2026
New
2
Increased
3
Decreased
3
Sold Out
2
Unchanged
7
Holder count:
0
Institutional value:
+33.8%
Shares held:
+1.5%
Top Buyers
vs Mar 31, 2026| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Large RENAISSANCE TECHNOLOGIES LLC | +13,550 | 122,698 | |
| Mid SBI Securities Co., Ltd. | +1,200 | 31,285 | |
| Mega UBS Group AG | +492 | 515 |
Top Sellers
vs Mar 31, 2026| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Mega GEODE CAPITAL MANAGEMENT, LLC | −11,330 | 33,299 | |
| Mid XTX Topco Ltd | −1,678 | 11,991 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC | −1,300 | 32,294 |
Top New Positions
vs Mar 31, 2026| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Mid Shay Capital LLC | 18,857 | $32,056 | |
| Mega BARCLAYS PLC | 15 | $25 |
Top Sold-Out Positions
vs Mar 31, 2026| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mega JANE STREET GROUP, LLC | 14,584 | $18,812 | |
| Mid Tower Research Capital LLC (TRC) | 207 | $267 |
Key facts
CIK
1574235
CUSIP
74584P301
13F (30d)
13 filings
13 filers
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Investor relations