Who owns AmperCap Acquisition Co?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of APMC from SEC Form 13F filings across 14 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, 14 institutions disclosed 4.5M shares of AmperCap Acquisition Co worth $43.0M — about 22.7% of shares outstanding; the largest disclosed holder is ADAGE CAPITAL PARTNERS GP, L.L.C.. Source: SEC Form 13F filings, parsed by EvidInvest.
14
13F holders
$43.0M
value, 2026 filers
22.7%
of shares outstanding (4.5M sh)
14
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 APMC's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | ADAGE CAPITAL PARTNERS GP, L.L.C.NEW | 1.1M | $11.1M | 0.0% | 5.6% | new |
| 2 | Sculptor Capital LPNEW | 1.0M | $10.1M | 0.1% | 5.1% | new |
| 3 | WOLVERINE ASSET MANAGEMENT LLCNEW | 711,905 | $7.0M | 0.1% | 3.6% | new |
| 4 | Polar Asset Management Partners Inc.NEW | 450,000 | $4.5M | 0.1% | 2.3% | new |
| 5 | Decagon Asset Management LLPNEW | 351,990 | $3.5M | 0.7% | 1.8% | new |
| 6 | TWO SIGMA INVESTMENTS, LPNEW | 226,562 | $2.2M | 0.0% | 1.1% | new |
| 7 | Verition Fund Management LLCNEW | 207,996 | $2.1M | 0.0% | 1% | new |
| 8 | Clear Street Group Inc.NEW | 175,926 | $0 | 0.0% | 0.9% | new |
| 9 | DELTEC ASSET MANAGEMENT LLCNEW | 100,000 | $989,000 | 0.1% | 0.5% | new |
| 10 | StoneX Group Inc.NEW | 67,030 | $662,927 | 0.0% | 0.3% | new |
| 11 | HEIGHTS CAPITAL MANAGEMENT, INCNEW | 50,000 | $494,500 | 0.1% | 0.3% | new |
| 12 | Logan Stone Capital, LLCNEW | 26,030 | $257,437 | 0.1% | 0.1% | new |
| 13 | CITADEL ADVISORS LLCNEW | 11,797 | $116,672 | 0.0% | 0.1% | new |
| 14 | HIGHBRIDGE CAPITAL MANAGEMENT LLCNEW | 1,000 | $9,900 | 0.0% | 0% | 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.