Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in PFSA held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | CITADEL ADVISORS LLC | 31K | $16K | — | 2.503% | 0.00% |
| 2 | GEODE CAPITAL MANAGEMENT, LLC | 31K | $16K | -80.5% | 2.493% | 0.00% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 4K | $2K | — | 0.320% | 0.00% |
| 4 | Tower Research Capital LLC (TRC) | 2K | $908 | +556.0% | 0.145% | 0.00% |
| 5 | VANGUARD FIDUCIARY TRUST CO | 2K | $859 | — | 0.137% | 0.00% |
| 6 | MORGAN STANLEY | 2K | $811 | +704.0% | 0.130% | 0.00% |
| 7 | UBS Group AG | 665 | $337 | -100.0% | 0.054% | 0.00% |
| 8 | SBI Securities Co., Ltd. | 45 | $23 | -96.8% | 0.004% | 0.00% |
| 9 | FMR LLC | 13 | $7 | — | 0.001% | 0.00% |
| 10 | Mint Tower Capital Management B.V. | 125 | $0 | -98.7% | 0.010% | 0.00% |
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 PFSA — a direct measure of their conviction.
Filings activity in PFSA during Q1 2026, grouped by how each filer changed its position.
3 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 10 | 52% | 13.57% | 166.51 pp | $0M | 92% |
| Q4 2025 | 21 | +17% | 180.08% | +63.21 pp | $0M | +54% |
| Q3 2025 | 18 | — | 116.87% | — | $0M | — |
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 PFSA stock.
Based on Q1 2026 13F filings, institutional ownership of Profusa, Inc. Common Stock stands at 13.6%, held across 10 reporting institutions.
CITADEL ADVISORS LLC is the largest reported institutional holder of PFSA, with approximately 30,844 shares worth $0.00B as of Q1 2026.
Yes — 1 widely-followed marquee investor appear among the top 25 institutional holders of PFSA, including CITADEL ADVISORS LLC.
Our composite Smart Money Score for PFSA is 26 out of 100 (Bearish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
4 institutions opened new positions in PFSA during Q1 2026, while 15 fully exited. 2 added to existing positions and 3 trimmed.
PFSA institutional ownership fell by 166.51 percentage points quarter-over-quarter, with a net change of -11 holders.
The top 10 institutions account for 100.0% of all reported 13F value in PFSA, and the top 25 account for 100.0%.
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.
Profusa, Inc. Common Stock (PFSA) Institutional Ownership