Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in LUNG held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | PRIMECAP MANAGEMENT CO/CA/ | 4.6M | $6.0M | -2.4% | 10.920% | 0.00% |
| 2 | MORGAN STANLEY | 2.9M | $3.8M | -26.8% | 6.920% | 0.00% |
| 3 | Soleus Capital Management, L.P. | 2.8M | $3.6M | 0.0% | 6.602% | 0.12% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 1.6M | $2.1M | -0.3% | 3.860% | 0.00% |
| 5 | ExodusPoint Capital Management, LP | 1.2M | $1.6M | -37.0% | 2.897% | 0.01% |
| 6 | Almitas Capital LLC | 1.1M | $1.4M | — | 2.520% | 0.33% |
| 7 | BlackRock, Inc. | 882K | $1.1M | -66.8% | 2.089% | 0.00% |
| 8 | JANE STREET GROUP, LLC | 882K | $1.1M | +493.7% | 2.088% | 0.00% |
| 9 | Stonepine Capital Management, LLC | 815K | $1.1M | +6.1% | 1.931% | 0.27% |
| 10 | BRAIDWELL LP | 753K | $978K | 0.0% | 1.782% | 0.04% |
| 11 | AQR CAPITAL MANAGEMENT LLC | 745K | $968K | +108.3% | 1.764% | 0.00% |
| 12 | Parkman Healthcare Partners LLC | 647K | $841K | -14.4% | 1.531% | 0.09% |
| 13 | GEODE CAPITAL MANAGEMENT, LLC | 453K | $589K | -52.1% | 1.072% | 0.00% |
| 14 | RENAISSANCE TECHNOLOGIES LLC | 425K | $553K | +32.7% | 1.006% | 0.00% |
| 15 | ADAR1 Capital Management, LLC | 404K | $526K | +8.0% | 0.958% | 0.02% |
| 16 | DEUTSCHE BANK AG\ | 402K | $523K | -65.4% | 0.953% | 0.00% |
| 17 | CITADEL ADVISORS LLC | 402K | $523K | +499.2% | 0.952% | 0.00% |
| 18 | D. E. Shaw & Co., Inc. | 328K | $426K | -2.3% | 0.775% | 0.00% |
| 19 | Jefferies Financial Group Inc. | 285K | $371K | 0.0% | 0.675% | 0.00% |
| 20 | CFM WEALTH PARTNERS LLC | 264K | $343K | 0.0% | 0.625% | 0.04% |
| 21 | VANGUARD FIDUCIARY TRUST CO | 251K | $326K | -10.9% | 0.593% | 0.00% |
| 22 | MARSHALL WACE, LLP | 231K | $300K | — | 0.546% | 0.00% |
| 23 | MILLENNIUM MANAGEMENT LLC | 210K | $272K | — | 0.496% | 0.00% |
| 24 | UBS Group AG | 204K | $265K | -2.7% | 0.483% | 0.00% |
| 25 | Birchview Capital, LP | 201K | $261K | -19.9% | 0.475% | 0.12% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in LUNG — a direct measure of their conviction.
Filings activity in LUNG during Q2 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 107 | 6.1% | 63.15% | 12.38 pp | $34M | 16% |
| Q1 2026 | 114 | +5.6% | 75.53% | 2.63 pp | $41M | 42% |
| Q4 2025 | 108 | +2.9% | 78.16% | +0.97 pp | $70M | +42% |
| Q3 2025 | 105 | 7.9% | 77.19% | 11.79 pp | $50M | 44% |
| Q2 2025 | 114 | +0.0% | 88.98% | 0.04 pp | $89M | 62% |
| Q1 2025 | 114 | 2.6% | 89.02% | 0.64 pp | $231M | 0.5% |
| Q4 2024 | 117 | +5.4% | 89.66% | +0.24 pp | $232M | 17% |
| Q3 2024 | 111 | — | 89.42% | — | $279M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying LUNG stock.
Based on Q2 2026 13F filings, institutional ownership of Pulmonx Corporation stands at 63.1%, held across 107 reporting institutions.
PRIMECAP MANAGEMENT CO/CA/ is the largest reported institutional holder of LUNG, with approximately 4,612,331 shares worth $0.01B as of Q2 2026.
Yes — 4 widely-followed marquee investors appear among the top 25 institutional holders of LUNG, including JANE STREET GROUP, LLC, RENAISSANCE TECHNOLOGIES LLC, CITADEL ADVISORS LLC, MILLENNIUM MANAGEMENT LLC.
Our composite Smart Money Score for LUNG is 45 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
18 institutions opened new positions in LUNG during Q2 2026, while 25 fully exited. 53 added to existing positions and 33 trimmed.
LUNG institutional ownership fell by 12.38 percentage points quarter-over-quarter, with a net change of -7 holders.
The top 10 institutions account for 67.1% of all reported 13F value in LUNG, and the top 25 account for 87.9%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Pulmonx Corporation (LUNG) Institutional Ownership