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 ILLUU from SEC Form 13F filings across 15 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, 15 institutions disclosed 5.5M shares of Illumination Acquisition Corp. I worth $55.1M — about 28.3% of shares outstanding; the largest disclosed holder is LMR Partners LLP. Source: SEC Form 13F filings, parsed by EvidInvest.
15
13F holders
$55.1M
value, 2026 filers
28.3%
of shares outstanding (5.5M sh)
2
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 ILLUU's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | LMR Partners LLP | 1.0M | $10.1M | 0.0% | 5.2% | 0.0% |
| 2 | OMERS ADMINISTRATION Corp | 799,500 | $8.0M | 0.0% | 4.1% | -0.1% |
| 3 | ARISTEIA CAPITAL, L.L.C. | 767,265 | $7.7M | 0.1% | 4% | +9.3% |
| 4 | AQR Arbitrage LLC | 636,284 | $6.4M | 0.1% | 3.3% | +1.6% |
| 5 | JPMORGAN CHASE & CONEW | 500,000 | $5.0M | 0.0% | 2.6% | new |
| 6 | TORONTO DOMINION BANK | 500,000 | $5.0M | 0.0% | 2.6% | -0.1% |
| 7 | BNP PARIBAS FINANCIAL MARKETS | 374,041 | $3.8M | 0.0% | 1.9% | 0.0% |
| 8 | Lineage Point Capital LP | 338,593 | $3.4M | 0.7% | 1.7% | +0.2% |
| 9 | MILLENNIUM MANAGEMENT LLC | 200,000 | $2.0M | 0.0% | 1% | -77.8% |
| 10 | Westchester Capital Management, LLC | 150,000 | $1.5M | 0.1% | 0.8% | 0.0% |
| 11 | BlueCrest Capital Management Ltd | 100,000 | $1.0M | 0.0% | 0.5% | 0.0% |
| 12 | Clear Street Group Inc.NEW | 75,940 | $763,197 | 0.0% | 0.4% | new |
| 13 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 30,000 | $301,500 | 0.0% | 0.2% | 0.0% |
| 14 | CITADEL ADVISORS LLC | 10,496 | $105,485 | 0.0% | 0.1% | -0.2% |
| 15 | LONGFELLOW INVESTMENT MANAGEMENT CO LLC | 3,933 | $39,527 | 0.0% | 0% | 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. Research, not investment advice.