Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in SIMAW held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | Magnetar Financial LLC | 973K | $304K | 0.0% | 4.229% | 0.00% |
| 2 | MMCAP International Inc. SPC | 990K | $248K | 0.0% | 4.304% | 0.02% |
| 3 | Harraden Circle Investments, LLC | 769K | $241K | — | 3.344% | 0.05% |
| 4 | CNH PARTNERS LLC | 815K | $204K | -0.5% | 3.543% | 0.00% |
| 5 | PICTON MAHONEY ASSET MANAGEMENT | 700K | $175K | 0.0% | 3.043% | 0.00% |
| 6 | LMR Partners LLP | 490K | $123K | 0.0% | 2.130% | 0.00% |
| 7 | TORONTO DOMINION BANK | 431K | $108K | -31.6% | 1.873% | 0.00% |
| 8 | HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 375K | $101K | 0.0% | 1.630% | 0.00% |
| 9 | Wealthspring Capital LLC | 363K | $98K | -0.4% | 1.578% | 0.02% |
| 10 | BNP PARIBAS ARBITRAGE, SA | 300K | $94K | 0.0% | 1.302% | 0.00% |
| 11 | Alberta Investment Management Corp | 375K | $94K | 0.0% | 1.630% | 0.00% |
| 12 | HIGHBRIDGE CAPITAL MANAGEMENT LLC | 360K | $90K | -7.2% | 1.565% | 0.01% |
| 13 | JPMORGAN CHASE & CO | 360K | $90K | — | 1.565% | 0.01% |
| 14 | K2 PRINCIPAL FUND, L.P. | 301K | $81K | -23.8% | 1.309% | 0.01% |
| 15 | WHITEBOX ADVISORS LLC | 250K | $63K | 0.0% | 1.087% | 0.00% |
| 16 | Bulldog Investors, LLP | 207K | $56K | -0.5% | 0.901% | 0.01% |
| 17 | PERISCOPE CAPITAL INC. | 173K | $54K | 0.0% | 0.750% | 0.01% |
| 18 | METEORA CAPITAL, LLC | 200K | $54K | -60.0% | 0.869% | 0.00% |
| 19 | CSS LLC/IL | 194K | $52K | +85.1% | 0.842% | 0.00% |
| 20 | Context Capital Management, LLC | 185K | $52K | 0.0% | 0.804% | 0.00% |
| 21 | Westchester Capital Management, LLC | 187K | $51K | 0.0% | 0.815% | 0.00% |
| 22 | RIVERNORTH CAPITAL MANAGEMENT, LLC | 201K | $50K | 0.0% | 0.874% | 0.00% |
| 23 | Verition Fund Management LLC | 150K | $38K | -4.5% | 0.652% | 0.00% |
| 24 | Shaolin Capital Management LLC | 150K | $38K | -36.2% | 0.652% | 0.00% |
| 25 | Saba Capital Management, L.P. | 111K | $35K | 0.0% | 0.484% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in SIMAW — a direct measure of their conviction.
Filings activity in SIMAW during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new SIMAW position in Q1 2026
Institutions that fully closed their SIMAW position in Q1 2026
7 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 33 | +6.5% | 45.80% | 22.13 pp | $3M | 33% |
| Q4 2025 | 31 | 8.8% | 67.93% | 37.41 pp | $4M | 36% |
| Q3 2025 | 34 | +3.0% | 105.34% | +17.85 pp | $6M | +20% |
| Q2 2025 | 33 | +14% | 87.49% | +34.51 pp | $5M | +65% |
| Q1 2025 | 29 | +0.0% | 52.98% | +4.68 pp | $3M | +9.7% |
| Q4 2024 | 29 | +61% | 48.30% | +38.83 pp | $3M | +410% |
| Q3 2024 | 18 | — | 9.47% | — | $1M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying SIMAW stock.
Based on Q1 2026 13F filings, institutional ownership of SIM Acquisition Corp. I stands at 45.8%, held across 33 reporting institutions.
Magnetar Financial LLC is the largest reported institutional holder of SIMAW, with approximately 972,598 shares worth $0.00B as of Q1 2026.
No marquee "smart money" managers (Berkshire, Burry, ARK, Tiger Global, Pershing Square, Baupost, etc.) currently appear among the top 25 institutional holders of SIMAW.
Our composite Smart Money Score for SIMAW is 32 out of 100 (Bearish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
4 institutions opened new positions in SIMAW during Q1 2026, while 2 fully exited. 23 added to existing positions and 6 trimmed.
SIMAW institutional ownership fell by 22.13 percentage points quarter-over-quarter, with a net change of +2 holders.
The top 10 institutions account for 62.9% of all reported 13F value in SIMAW, and the top 25 account for 96.2%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
SIM Acquisition Corp. I (SIMAW) Institutional Ownership