Who owns Praetorian Acquisition Corp.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of PTOR from SEC Form 13F filings across 41 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, 41 institutions disclosed 18.1M shares of Praetorian Acquisition Corp. worth $177.8M — about 53.3% of shares outstanding; the largest disclosed holder is Magnetar Financial LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
41
13F holders
$177.8M
value, 2026 filers
53.3%
of shares outstanding (18.1M sh)
17
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 PTOR's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Magnetar Financial LLC | 1.5M | $14.9M | 0.1% | 4.4% | 0.0% |
| 2 | Alberta Investment Management CorpNEW | 1.4M | $13.9M | 0.1% | 4.1% | new |
| 3 | MILLENNIUM MANAGEMENT LLCNEW | 1.3M | $13.1M | 0.0% | 3.9% | new |
| 4 | TENOR CAPITAL MANAGEMENT Co., L.P. | 1.1M | $10.8M | 0.2% | 3.2% | 0.0% |
| 5 | GLAZER CAPITAL, LLC | 1.0M | $10.0M | 0.2% | 3% | -1.8% |
| 6 | AQR Arbitrage LLCNEW | 948,969 | $9.4M | 0.1% | 2.8% | new |
| 7 | BERKLEY W R CORP | 795,690 | $7.9M | 0.4% | 2.3% | 0.0% |
| 8 | Shaolin Capital Management LLC | 764,800 | $7.6M | 0.4% | 2.3% | -10.0% |
| 9 | Hudson Bay Capital Management LP | 750,000 | $7.4M | 0.0% | 2.2% | 0.0% |
| 10 | BNP PARIBAS FINANCIAL MARKETSNEW | 701,019 | $7.0M | 0.0% | 2.1% | new |
| 11 | Governors Lane LP | 700,000 | $7.0M | 0.6% | 2.1% | 0.0% |
| 12 | Periscope Capital Inc. | 500,000 | $5.0M | 0.4% | 1.5% | 0.0% |
| 13 | D. E. Shaw & Co., Inc. | 500,000 | $5.0M | 0.0% | 1.5% | 0.0% |
| 14 | Polar Asset Management Partners Inc. | 500,000 | $5.0M | 0.1% | 1.5% | 0.0% |
| 15 | PICTON MAHONEY ASSET MANAGEMENTNEW | 499,995 | $5.0M | 0.0% | 1.5% | new |
| 16 | WHITEBOX ADVISORS LLCNEW | 400,000 | $4.0M | 0.1% | 1.2% | new |
| 17 | RLH Capital LLCNEW | 399,328 | $4.0M | 1.9% | 1.2% | new |
| 18 | Clear Street Group Inc. | 398,969 | $2.4M | 0.0% | 1.2% | -20.9% |
| 19 | TWO SIGMA INVESTMENTS, LP | 398,750 | $4.0M | 0.0% | 1.2% | 0.0% |
| 20 | SONA ASSET MANAGEMENT (US) LLC | 350,000 | $3.5M | 0.1% | 1% | 0.0% |
| 21 | COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYSNEW | 299,999 | $3.0M | 0.0% | 0.9% | new |
| 22 | WOLVERINE ASSET MANAGEMENT LLCNEW | 289,097 | $2.9M | 0.0% | 0.9% | new |
| 23 | Radcliffe Capital Management, L.P. | 281,839 | $2.8M | 0.2% | 0.8% | +68.4% |
| 24 | Linden Advisors LP | 250,000 | $2.5M | 0.0% | 0.7% | 0.0% |
| 25 | Quarry LPNEW | 250,000 | $2.5M | 0.2% | 0.7% | new |
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.