AMPERCAP ACQUISITION CO APMC
ORD SHS · Common Stock · CUSIP G0344N107
- SectorBlank check (SPAC)
- IndustryBlank Checks
- HeadquartersNew York, NY
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 20.0m as of 2026-08-13, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $9.51.
Biggest buyers
| ADAGE CAPITAL PARTNERS GP, L.L.C. | New | +1.1m |
| Sculptor Capital LP | New | +1.0m |
| WOLVERINE ASSET MANAGEMENT LLC | New | +711.9k |
| Polar Asset Management Partners Inc. | New | +450.0k |
| Decagon Asset Management LLP | New | +352.0k |
| TWO SIGMA INVESTMENTS, LP | New | +226.6k |
| Verition Fund Management LLC | New | +208.0k |
| Clear Street Group Inc. | New | +175.9k |
| DELTEC ASSET MANAGEMENT LLC | New | +100.0k |
| StoneX Group Inc. | New | +67.0k |
Biggest sellers
| None |
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
AmperSPAC LLC
13D · may seek influence
new · filed 2026-06-11
Stated purposeFounder Shares On January 6, 2026, the Sponsor acquired an aggregate of 4,791,667 ordinary shares, for $25,000, or approximately $0.005 per share (including an aggregate of up to 625,000 shares subject to forfeiture depending on the extent to which the underwriters' over-allotment option is exercised) ("Founder Shares"), pursuant to the Securities Subscription Agreement dated as of January 6, 2026 between the Sponsor and the Issuer (the "Founder Share Purchase Agreement") as more fully described in Item 6 of this Section 13D, which information is incorporated by reference. On June 4, 2026, upon the consummation of the initial public offering ("IPO") of the Issuer and the third-party investors purchasing 127,500 private placement units from the Issuer, Sponsor transferred an aggregate of 1… Full filing |
19.6% |
| Magnetar Financial LLC 13G · institution new · filed 2026-08-13 | 8.1% |
| Adage Capital Management, L.P. 13G · institution new · filed 2026-08-12 | 5.6% |
| WOLVERINE ASSET MANAGEMENT LLC 13G · institution new · filed 2026-10-07 | 5.6% |
| Sculptor Capital LP 13G · passive investor filed 2026-08-14 | 5.1% |
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 0 | — | 0 | — | — |
| Q1 2026 | 0 | — | 0 | — | — |
| Q2 2026 | 1 | $2.8m | 0 | — | — |
| Q3 2026 | 0 | — | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-06-10 | Gutierrez Pier Alberto +2 Co-CEO, director | Bought | $349.1k34.9k shares |
| 2026-06-04 | Gutierrez Pier Alberto +2 Co-CEO, director | Bought | $2.5m247.5k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.02% of their portfolio | 1.1m $11.1m | New |
| Sculptor Capital LP 0.10% of their portfolio | 1.0m $10.1m | New |
| WOLVERINE ASSET MANAGEMENT LLC 0.09% of their portfolio | 711.9k $7.0m | New |
| Polar Asset Management Partners Inc. 0.08% of their portfolio | 450.0k $4.5m | New |
| Decagon Asset Management LLP 0.69% of their portfolio | 352.0k $3.5m | New |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 226.6k $2.2m | New |
| Verition Fund Management LLC 0.01% of their portfolio | 208.0k $2.1m | New |
| Clear Street Group Inc. 0.00% of their portfolio | 175.9k $0 | New |
| DELTEC ASSET MANAGEMENT LLC 0.15% of their portfolio | 100.0k $989.0k | New |
| StoneX Group Inc. 0.03% of their portfolio | 67.0k $662.9k | New |
| HEIGHTS CAPITAL MANAGEMENT, INC 0.11% of their portfolio | 50.0k $494.5k | New |
| Logan Stone Capital, LLC 0.05% of their portfolio | 26.0k $257.4k | New |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 11.8k $116.7k | New |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 1.0k $9.9k | New |