Who owns SIM Acquisition Corp. I, from the filings themselves: stakes over 5% (Schedule 13D/G), the institutional managers reporting the stock each quarter (13F), and the funds holding it (N-PORT).
Investors crossing 5% ownership must disclose it. Schedule 13G filers certify the stake is passive; Schedule 13D is the general form for everyone else — founders, strategic holders, and activists alike. Each entry is the holder's most recent disclosure. Coverage begins with SEC's structured filings from December 18, 2024; a holder appears once they file or amend after that date.
MAGNETAR FINANCIAL LLC: 0.0% · 0 shares — MAGNETAR CAPITAL PARTNERS LP: 0.0% · 0 shares — SUPERNOVA MANAGEMENT LLC: 0.0% · 0 shares
First Trust Merger Arbitrage Fund: 0.0% · 0 shares — First Trust Capital Management L.P.: 0.0% · 0 shares — First Trust Capital Solutions L.P.: 0.0% · 0 shares
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Sign up freeEvery institutional manager whose latest 13F reports this stock, largest position first. "% of their portfolio" is the weight inside that manager's own book — how much conviction the position represents; "% of company" is how much of SIM Acquisition Corp. I they hold. Together these 48 managers report 320.15% of shares outstanding.
| Investor | Position value | Shares | % of their portfolio | % of company | As of |
|---|---|---|---|---|---|
| Magnetar Financial LLC | $20.8M | 1,945,196 | 0.21% | 29.18% | March 31, 2026 |
| Karpus Management, Inc. | $18.5M | 1,725,032 | 0.58% | 25.88% | March 31, 2026 |
46 more institutional holders behind a free account
See every manager reporting SIM Acquisition Corp. I, how much of the company they hold, and how big the position is inside their own portfolio.
Sign up freeFunds disclosing this stock in their monthly N-PORT portfolio, with the position's share of the fund's net assets. Together these 9 funds hold 24.43% of shares outstanding — counted inside the manager totals above, not on top of them, since a fund's shares also appear in its manager's 13F.
| Fund | Position value | % of net assets | % of company | As of |
|---|---|---|---|---|
| First Trust Merger Arbitrage Fund | $12.6M | 0.80% | 17.57% | March 31, 2026 |
| Special Opportunities Fund, Inc. | $1.61M | 0.96% | 2.25% | March 31, 2026 |
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