Who owns ASPAC III Acquisition Corp. (ASPC)
Which tracked institutional funds hold ASPC, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See ASPC company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-15). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on ASPC is one-sided between 2025-Q4 and 2026-Q1: 0 added or opened and 2 trimmed or exited — on balance reducing.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
ASPC’s largest tracked holder by dollar value, BERKLEY W R CORP, sizes it at 0.3% of its own reported 13F book, while the median holder sizes it at 0.1% of theirs — a 0.2pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in ASPC divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Only 4 institutional filer(s) hold this name — too few for a reliable accumulation read. The smart-money signal needs at least 5 filers.
We do not publish a positioning read for a window we cannot measure honestly. A starting question, not a verdict.
New buyers & exits
Funds opening or closing a position in ASPC between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
Full exits 1
- Hudson Bay Capital Management LP$2M
Largest trims
- GEODE CAPITAL MANAGEMENT, LLC$268K
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BERKLEY W R CORP added | 615,149 | $6M | 10.5% | 2025-Q3 |
| WOLVERINE ASSET MANAGEMENT LLC trimmed | 578,010 | $6M | 9.9% | 2025-Q3 |
| MIZUHO SECURITIES USA LLC added | 580,000 | $6M | 9.8% | 2025-Q3 |
| RIVERNORTH CAPITAL MANAGEMENT, LLC new | 539,744 | $6M | 9.2% | 2025-Q3 |
| ATW SPAC MANAGEMENT LLC | 389,100 | $4M | 6.7% | 2025-Q3 |
| BOOTHBAY FUND MANAGEMENT, LLC | 389,100 | $4M | 6.7% | 2025-Q3 |
| Polar Asset Management Partners Inc. | 340,000 | $4M | 5.8% | 2025-Q3 |
| ADAR1 Capital Management, LLC | 215,000 | $2M | 3.7% | 2025-Q3 |
| Westchester Capital Management, LLC | 200,000 | $2M | 3.4% | 2025-Q3 |
| Hudson Bay Capital Management LP | 200,000 | $2M | 3.4% | 2025-Q4 |
| AQR Arbitrage LLC trimmed | 181,223 | $2M | 3.1% | 2025-Q3 |
| Mint Tower Capital Management B.V. | 175,000 | $2M | 3.0% | 2025-Q3 |
| Quarry LP trimmed | 150,000 | $2M | 2.6% | 2025-Q3 |
| GABELLI & Co INVESTMENT ADVISERS, INC. | 103,200 | $1M | 1.8% | 2025-Q3 |
| GABELLI FUNDS LLC | 71,800 | $742K | 1.2% | 2025-Q3 |
| GOLDMAN SACHS GROUP INC | 63,236 | $654K | 1.1% | 2025-Q3 |
| HEIGHTS CAPITAL MANAGEMENT, INC | 60,000 | $621K | 1.0% | 2025-Q3 |
| HRT FINANCIAL LP added | 38,886 | $402K | 0.7% | 2025-Q3 |
| Radcliffe Capital Management, L.P. | 32,870 | $340K | 0.6% | 2025-Q3 |
| Warberg Asset Management LLC | 20,000 | $207K | 0.3% | 2025-Q3 |
| Clear Street Group Inc. added | 18,193 | $197K | 0.3% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC trimmed | 10,042 | $109K | 0.2% | 2026-Q1 |
| UBS Group AG new | 318 | $3K | 0.0% | 2026-Q1 |
| SHP Wealth Management new | 25 | $586 | 0.0% | 2025-Q4 |
| MORGAN STANLEY added | 37 | $400 | 0.0% | 2026-Q1 |
| Tower Research Capital LLC (TRC) new | 14 | $328 | 0.0% | 2025-Q4 |
| MIZUHO SECURITIES USA LLC new | 575,561 | $6M | 9.5% | 2025-Q1 stale |
| GRITSTONE ASSET MANAGEMENT LLC new | 149,497 | $2M | 2.5% | 2025-Q1 stale |
| TWO SIGMA INVESTMENTS, LP new | 118,271 | $1M | 2.0% | 2025-Q1 stale |
| Sandia Investment Management LP new | 30,000 | $308K | 0.5% | 2025-Q2 stale |
| Virtu Financial LLC new | 28,027 | $282K | 0.5% | 2025-Q1 stale |
| CLEAR STREET LLC added | 3,076 | $32K | 0.1% | 2025-Q2 stale |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | — | 0.0% | 2025-Q2 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.