Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in CAPN held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BERKLEY W R CORP | 497K | $5.5M | -34.8% | 8.288% | 0.29% |
| 2 | MIZUHO SECURITIES USA LLC | 476K | $5.1M | -32.5% | 7.932% | 0.12% |
| 3 | RIVERNORTH CAPITAL MANAGEMENT, LLC | 450K | $5.0M | 0.0% | 7.500% | 0.25% |
| 4 | WOLVERINE ASSET MANAGEMENT LLC | 276K | $3.0M | -51.2% | 4.595% | 0.05% |
| 5 | Polar Asset Management Partners Inc. | 275K | $3.0M | 0.0% | 4.583% | 0.07% |
| 6 | Shaolin Capital Management LLC | 224K | $2.5M | — | 3.732% | 0.10% |
| 7 | CNH PARTNERS LLC | 184K | $2.0M | -47.3% | 3.073% | 0.03% |
| 8 | HEIGHTS CAPITAL MANAGEMENT, INC | 150K | $1.6M | 0.0% | 2.500% | 0.46% |
| 9 | Clear Street Group Inc. | 142K | $1.6M | +31.6% | 2.364% | 0.01% |
| 10 | GOLDMAN SACHS GROUP INC | 63K | $697K | -44.6% | 1.057% | 0.00% |
| 11 | Harraden Circle Investments, LLC | 27K | $293K | — | 0.444% | 0.06% |
| 12 | Quarry LP | 15K | $160K | 0.0% | 0.242% | 0.03% |
| 13 | BNP PARIBAS ARBITRAGE, SA | 9K | $101K | — | 0.153% | 0.00% |
| 14 | UBS Group AG | 370 | $4K | — | 0.006% | 0.00% |
| 15 | MORGAN STANLEY | 68 | $748 | +51.1% | 0.001% | 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 CAPN — a direct measure of their conviction.
Filings activity in CAPN during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new CAPN position in Q1 2026
Institutions that fully closed their CAPN position in Q1 2026
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 |
|---|---|---|---|---|---|---|
| Q1 2026 | 15 | 42% | 46.12% | 30.05 pp | $31M | 39% |
| Q4 2025 | 26 | 13% | 76.17% | 10.41 pp | $51M | 12% |
| Q3 2025 | 30 | +7.1% | 86.58% | 0.65 pp | $57M | 0.7% |
| Q2 2025 | 28 | 3.4% | 87.23% | +3.73 pp | $58M | +4.5% |
| Q1 2025 | 29 | 3.3% | 83.50% | +4.69 pp | $55M | +6.0% |
| Q4 2024 | 30 | +2900% | 78.81% | +67.71 pp | $52M | +610% |
| Q2 2017 | 1 | 91% | 11.10% | 6.20 pp | $7M | 36% |
| Q1 2017 | 11 | — | 17.30% | — | $11M | — |
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 CAPN stock.
Based on Q1 2026 13F filings, institutional ownership of Cayson Acquisition Corp Ordinary shares stands at 46.1%, held across 15 reporting institutions.
BERKLEY W R CORP is the largest reported institutional holder of CAPN, with approximately 497,282 shares worth $0.01B as of Q1 2026.
No marquee "smart money" managers (Berkshire, Burry, ARK, Tiger Global, Pershing Square, Baupost, etc.) currently appear among the top 25 institutional holders of CAPN.
Our composite Smart Money Score for CAPN is 14 out of 100 (Heavy Distribution). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
4 institutions opened new positions in CAPN during Q1 2026, while 15 fully exited. 6 added to existing positions and 5 trimmed.
CAPN institutional ownership fell by 30.05 percentage points quarter-over-quarter, with a net change of -11 holders.
The top 10 institutions account for 98.2% of all reported 13F value in CAPN, 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.
Cayson Acquisition Corp Ordinary shares (CAPN) Institutional Ownership