Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in OACC held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | CNH PARTNERS LLC | 1.3M | $14.1M | -6.3% | 6.897% | 0.23% |
| 2 | Decagon Asset Management LLP | 1.0M | $10.6M | +48.4% | 5.221% | 2.75% |
| 3 | Fort Baker Capital Management LP | 1.0M | $10.6M | — | 5.209% | 1.04% |
| 4 | Empyrean Capital Partners, LP | 900K | $9.6M | 0.0% | 4.688% | 0.32% |
| 5 | D. E. Shaw & Co., Inc. | 862K | $9.2M | 0.0% | 4.488% | 0.01% |
| 6 | Boussard & Gavaudan Investment Management LLP | 720K | $7.6M | 0.0% | 3.750% | 0.73% |
| 7 | LINDEN ADVISORS LP | 600K | $6.4M | 0.0% | 3.125% | 0.04% |
| 8 | Sculptor Capital LP | 531K | $5.6M | +0.1% | 2.765% | 0.06% |
| 9 | GOLDMAN SACHS GROUP INC | 530K | $5.6M | 0.0% | 2.758% | 0.00% |
| 10 | MOORE CAPITAL MANAGEMENT, LP | 525K | $5.6M | 0.0% | 2.735% | 0.13% |
| 11 | LMR Partners LLP | 511K | $5.4M | 0.0% | 2.661% | 0.04% |
| 12 | HighTower Advisors, LLC | 511K | $5.4M | -18.5% | 2.661% | 0.01% |
| 13 | Alberta Investment Management Corp | 500K | $5.3M | 0.0% | 2.604% | 0.03% |
| 14 | TORONTO DOMINION BANK | 497K | $5.3M | -26.4% | 2.587% | 0.01% |
| 15 | Ghisallo Capital Management LLC | 450K | $4.8M | 0.0% | 2.344% | 0.13% |
| 16 | HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 450K | $4.8M | 0.0% | 2.344% | 0.01% |
| 17 | TWO SIGMA INVESTMENTS, LP | 438K | $4.6M | 0.0% | 2.279% | 0.00% |
| 18 | GRITSTONE ASSET MANAGEMENT LLC | 395K | $4.2M | 0.0% | 2.057% | 4.46% |
| 19 | Radcliffe Capital Management, L.P. | 382K | $4.1M | +1.4% | 1.992% | 0.30% |
| 20 | PERISCOPE CAPITAL INC. | 323K | $3.4M | 0.0% | 1.684% | 0.60% |
| 21 | Shaolin Capital Management LLC | 315K | $3.3M | -16.0% | 1.641% | 0.13% |
| 22 | Verition Fund Management LLC | 305K | $3.2M | -1.5% | 1.589% | 0.02% |
| 23 | Hudson Bay Capital Management LP | 300K | $3.2M | -25.0% | 1.563% | 0.03% |
| 24 | Governors Lane LP | 300K | $3.2M | 0.0% | 1.563% | 0.31% |
| 25 | O'Connor Alternative Investments LLC | 300K | $3.2M | — | 1.563% | 0.27% |
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 OACC — a direct measure of their conviction.
Filings activity in OACC during Q1 2026, grouped by how each filer changed its position.
6 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 | 50 | +2.0% | 84.91% | 0.09 pp | $174M | 0.1% |
| Q4 2025 | 49 | +4.3% | 85.00% | +3.62 pp | $175M | +4.5% |
| Q3 2025 | 47 | 2.1% | 81.38% | +0.27 pp | $167M | +0.3% |
| Q2 2025 | 48 | +23% | 81.11% | +12.31 pp | $167M | +18% |
| Q1 2025 | 39 | +95% | 68.80% | +28.58 pp | $141M | +71% |
| Q4 2024 | 20 | — | 40.22% | — | $83M | — |
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 OACC stock.
Based on Q1 2026 13F filings, institutional ownership of Oaktree Acquisition Corp. III Life Sciences stands at 84.9%, held across 50 reporting institutions.
CNH PARTNERS LLC is the largest reported institutional holder of OACC, with approximately 1,324,175 shares worth $0.01B as of Q1 2026.
Yes — 1 widely-followed marquee investor appear among the top 25 institutional holders of OACC, including TWO SIGMA INVESTMENTS, LP.
Our composite Smart Money Score for OACC is 51 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
5 institutions opened new positions in OACC during Q1 2026, while 4 fully exited. 14 added to existing positions and 20 trimmed.
OACC institutional ownership fell by 0.09 percentage points quarter-over-quarter, with a net change of +1 holders.
The top 10 institutions account for 48.6% of all reported 13F value in OACC, and the top 25 account for 84.9%.
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.
Oaktree Acquisition Corp. III Life Sciences (OACC) Institutional Ownership