Pulmonx
LUNG
112 hedge funds and large institutions have $71.6M invested in Pulmonx in 2025 Q4 according to their latest regulatory filings, with 24 funds opening new positions, 29 increasing their positions, 38 reducing their positions, and 18 closing their positions.
39% more capital invested
Capital invested by funds: $51.6M → $71.6M (+$19.9M)
33% more first-time investments, than exits
New positions opened: 24 | Existing positions closed: 18
5% more funds holding
Funds holding: 107 → 112 (+5)
0.41% more ownership
Funds ownership: 78.13% → 78.54% (+0.41%)
12% less call options, than puts
Call options by funds: $263K | Put options by funds: $298K
24% less repeat investments, than reductions
Existing positions increased: 29 | Existing positions reduced: 38
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
SCM
Soleus Capital Management
Greenwich,
Connecticut
|
+$3.83M |
| 2 |
ECM
ExodusPoint Capital Management
New York
|
+$3.67M |
| 3 |
Morgan Stanley
New York
|
+$1.01M |
| 4 |
Vanguard Group
Malvern,
Pennsylvania
|
+$561K |
| 5 |
BC
Birchview Capital
Burlington,
Vermont
|
+$471K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Fidelity Investments
Boston,
Massachusetts
|
-$3.95M |
| 2 |
VPC
Vestal Point Capital
New York
|
-$1.34M |
| 3 |
GCP
GSA Capital Partners
London,
United Kingdom
|
-$661K |
| 4 |
Millennium Management
New York
|
-$576K |
| 5 |
Primecap Management
Pasadena,
California
|
-$430K |
LUNG Hedge Fund Activity: Q4 2025 in Review
112 of the 8,267 institutional investors tracked by Wall St. Rank reported a position in Pulmonx (LUNG) for Q4 2025, worth a combined $71.6M — up 39% from $51.6M a quarter earlier.
Buyers outnumbered sellers: 24 funds opened new LUNG positions and 18 closed out — a net gain of 6 holders — while 29 added to existing stakes and 38 trimmed.
The largest buyer was Soleus Capital Management, opening a new position worth an estimated $3.83M. The largest seller was Fidelity Investments, cutting an estimated $3.95M.
- 112 institutional investors held Pulmonx (LUNG) as of Q4 2025, up from 107 in Q3 2025.
- Funds reported $71.6M of Pulmonx stock for Q4 2025, up 39% quarter-over-quarter.
- 24 funds opened new Pulmonx positions in Q4 2025 and 18 closed out, a net change of +6 holders.
- The largest Pulmonx buyer in Q4 2025 was Soleus Capital Management, an estimated $3.83M added.
- The largest Pulmonx seller in Q4 2025 was Fidelity Investments, an estimated $3.95M sold.
Based on aggregated 13F filings for Q4 2025.