Who owns Illumination Acquisition Corp. I?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of ILLU from SEC Form 13F filings across 38 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, 38 institutions disclosed 15.5M shares of Illumination Acquisition Corp. I worth $153.6M — about 80% of shares outstanding; the largest disclosed holder is Magnetar Financial LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
38
13F holders
$153.6M
value, 2026 filers
80%
of shares outstanding (15.5M sh)
38
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 ILLU's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Magnetar Financial LLCNEW | 1.8M | $18.3M | 0.2% | 9.5% | new |
| 2 | HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUNDNEW | 1.0M | $9.9M | 0.0% | 5.2% | new |
| 3 | Kryger Capital LLCNEW | 988,182 | $9.8M | 0.6% | 5.1% | new |
| 4 | Linden Advisors LPNEW | 950,000 | $9.4M | 0.0% | 4.9% | new |
| 5 | SONA ASSET MANAGEMENT (US) LLCNEW | 900,000 | $8.9M | 0.2% | 4.6% | new |
| 6 | GLAZER CAPITAL, LLCNEW | 866,475 | $8.6M | 0.2% | 4.5% | new |
| 7 | MILLENNIUM MANAGEMENT LLCNEW | 700,000 | $6.9M | 0.0% | 3.6% | new |
| 8 | Verition Fund Management LLCNEW | 625,000 | $6.2M | 0.0% | 3.2% | new |
| 9 | Shaolin Capital Management LLCNEW | 602,281 | $6.0M | 0.3% | 3.1% | new |
| 10 | MOORE CAPITAL MANAGEMENT, LPNEW | 600,000 | $5.9M | 0.1% | 3.1% | new |
| 11 | Alberta Investment Management CorpNEW | 600,000 | $5.9M | 0.0% | 3.1% | new |
| 12 | Mint Tower Capital Management B.V.NEW | 500,000 | $5.0M | 0.6% | 2.6% | new |
| 13 | RIVERNORTH CAPITAL MANAGEMENT, LLCNEW | 499,998 | $5.0M | 0.2% | 2.6% | new |
| 14 | Radcliffe Capital Management, L.P.NEW | 499,184 | $4.9M | 0.4% | 2.6% | new |
| 15 | WHITEBOX ADVISORS LLCNEW | 450,000 | $4.5M | 0.1% | 2.3% | new |
| 16 | TENOR CAPITAL MANAGEMENT Co., L.P.NEW | 400,000 | $4.0M | 0.1% | 2.1% | new |
| 17 | Hudson Bay Capital Management LPNEW | 381,396 | $3.8M | 0.0% | 2% | new |
| 18 | TWO SIGMA INVESTMENTS, LPNEW | 362,500 | $3.6M | 0.0% | 1.9% | new |
| 19 | BERKLEY W R CORPNEW | 323,049 | $3.2M | 0.2% | 1.7% | new |
| 20 | PICTON MAHONEY ASSET MANAGEMENTNEW | 299,997 | $3.0M | 0.0% | 1.5% | new |
| 21 | Context Capital Management, LLCNEW | 280,000 | $2.8M | 0.1% | 1.4% | new |
| 22 | Periscope Capital Inc.NEW | 276,800 | $2.7M | 0.2% | 1.4% | new |
| 23 | Polar Asset Management Partners Inc.NEW | 250,000 | $2.5M | 0.0% | 1.3% | new |
| 24 | Centiva Capital, LPNEW | 250,000 | $2.5M | 0.0% | 1.3% | new |
| 25 | WOLVERINE ASSET MANAGEMENT LLCNEW | 159,279 | $1.6M | 0.0% | 0.8% | 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.