Who owns Oaktree Acquisition Corp. III Life Sciences?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of OACC from SEC Form 13F filings across 51 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 51 institutions disclosed 17.0M shares of Oaktree Acquisition Corp. III Life Sciences worth $181.6M — about 88.4% of shares outstanding; the largest disclosed holder is AQR Arbitrage LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
51
13F holders
$181.6M
value, 2026 filers
88.4%
of shares outstanding (17.0M sh)
3
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of OACC's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | AQR Arbitrage LLC | 1.3M | $14.2M | 0.2% | 6.9% | 0.0% |
| 2 | Fort Baker Capital Management LP | 1.1M | $11.8M | 0.9% | 5.8% | +10.5% |
| 3 | Decagon Asset Management LLP | 1.1M | $11.7M | 2.2% | 5.7% | +8.9% |
| 4 | Empyrean Capital Partners, LP | 900,000 | $9.6M | 0.3% | 4.7% | 0.0% |
| 5 | D. E. Shaw & Co., Inc. | 861,625 | $9.2M | 0.0% | 4.5% | 0.0% |
| 6 | BOUSSARD & GAVAUDAN GESTION SASNEW | 720,000 | $7.7M | 0.4% | 3.8% | new |
| 7 | Linden Advisors LP | 600,000 | $6.4M | 0.0% | 3.1% | 0.0% |
| 8 | TORONTO DOMINION BANK | 554,294 | $5.9M | 0.0% | 2.9% | +11.6% |
| 9 | Sculptor Capital LP | 530,807 | $5.7M | 0.0% | 2.8% | 0.0% |
| 10 | GOLDMAN SACHS GROUP INC | 529,535 | $5.7M | 0.0% | 2.8% | 0.0% |
| 11 | MOORE CAPITAL MANAGEMENT, LP | 525,000 | $5.6M | 0.1% | 2.7% | 0.0% |
| 12 | LMR Partners LLP | 510,900 | $5.5M | 0.0% | 2.7% | 0.0% |
| 13 | Alberta Investment Management Corp | 500,000 | $5.4M | 0.0% | 2.6% | 0.0% |
| 14 | Verition Fund Management LLC | 470,342 | $5.0M | 0.0% | 2.4% | +54.2% |
| 15 | Ghisallo Capital Management LLC | 450,000 | $4.8M | 0.1% | 2.3% | 0.0% |
| 16 | HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 450,000 | $4.8M | 0.0% | 2.3% | 0.0% |
| 17 | TWO SIGMA INVESTMENTS, LP | 437,500 | $4.7M | 0.0% | 2.3% | 0.0% |
| 18 | GRITSTONE ASSET MANAGEMENT LLC | 394,908 | $4.2M | 4.1% | 2.1% | 0.0% |
| 19 | Radcliffe Capital Management, L.P. | 387,222 | $4.1M | 0.3% | 2% | +1.2% |
| 20 | K2 PRINCIPAL FUND, L.P. | 365,900 | $3.9M | 0.3% | 1.9% | +87.4% |
| 21 | GLAZER CAPITAL, LLC | 357,649 | $3.8M | 0.1% | 1.9% | -0.1% |
| 22 | Periscope Capital Inc. | 323,400 | $3.5M | 0.3% | 1.7% | 0.0% |
| 23 | TENOR CAPITAL MANAGEMENT Co., L.P. | 300,000 | $3.2M | 0.0% | 1.6% | 0.0% |
| 24 | Hudson Bay Capital Management LP | 300,000 | $3.2M | 0.0% | 1.6% | 0.0% |
| 25 | Governors Lane LP | 300,000 | $3.2M | 0.3% | 1.6% | 0.0% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.