HCMAU · Hcm III Acquisition Corp. · Holdings
Substantial doubt about the company's ability to continue as a going concern.
“Based on the Company’s current liquidity position, projected operating costs, and the requirement to complete a Business Combination by August 4, 2027 or otherwise liquidate, the Company may not have sufficient liquidity to meet its obligations for at least twelve months from the issuance date of these unaudited condensed financial statements. Accordingly, there is substantial doubt about the Company’s ability to continue as a going concern.”View the 10-Q filed Aug 14, 2026
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional Ownership Trend
Holder Concentration
Across 1 13F filers · Δ vs Jun 30, 2026Who Holds HCMAU
Last 5 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 11 filers, like-for-like change -44.0%; actively managed books -44.0%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 18.0% | 4 | -83.2% |
| Bank | 66.9% | 2 | +16.5% |
| Benefit plan | 6.7% | 1 | 0.0% |
| Non-US | 0.0% | 1 | 0.0% |
| Exempt adviser | 0.0% | 0 | — |
| Unknown | 8.5% | 3 | +15.2% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Systematic-like | 6.7% | 2 | -92.3% |
| Concentrated | 1.5% | 1 | +110820.0% |
| Diversified active | 91.8% | 8 | -0.5% |
| Not measured | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Medium turnover | 76.9% | 5 | +14.1% |
| High turnover | 21.7% | 5 | -80.5% |
| Low turnover | 0.0% | 0 | — |
| Unknown | 1.5% | 1 | new |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 12.8% | 4 | -85.9% |
| Long horizon | 73.5% | 4 | +14.8% |
| Medium horizon | 0.0% | 0 | -100.0% |
| Unknown | 13.7% | 3 | -42.1% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 0.0% | 1 | 0.0% |
| $1B to $10B | 11.3% | 3 | -88.8% |
| $10B to $100B | 88.6% | 6 | +13.6% |
| $100B or more | 0.0% | 1 | -32.6% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Pooled investment vehicles | 14.7% | 3 | -85.9% |
| Registered funds and BDCs | 3.3% | 1 | 0.0% |
| Other investment advisers | 0.0% | 0 | — |
| Charitable organizations | 0.0% | 0 | — |
| Diversified | 0.0% | 0 | — |
| Unknown | 82.0% | 7 | +14.9% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 8.0% | 2 | -90.9% |
| Other private funds | 6.7% | 1 | 0.0% |
| No private funds | 3.3% | 1 | 0.0% |
| Private equity funds | 0.0% | 0 | -100.0% |
| Private funds, type not stated | 0.0% | 0 | — |
| Unknown | 82.0% | 7 | +14.9% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 26.5% | 7 | -31.3% |
| Outside the US | 73.5% | 4 | -47.6% |
The Sep 30, 2026 filing window is still open, so its bar shows only the filers that have filed so far.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Conviction and Crowding
11 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).
Estimated Holder Cost Basis
Quarter ended Jun 30, 2026, on that quarter's share basisEstimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.
Estimated cost covers 100.0% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.
Shared Holders
Companies HCMAU's active holders also own, quarter ended Jun 30, 2026| # | Company | Shared holders |
|---|---|---|
| 1 | BLUW Blue Water Acquisition Corp. III | 3 |
| 2 | AEXA American Exceptionalism Acquisition Corp. A | 7 |
| 3 | MBVI M3-Brigade Acquisition VI Corp. | 3 |
| 4 | RNGT Range Capital Acquisition Corp II | 6 |
| 5 | BREZ Breeze Acquisition Corp. II | 3 |
| 6 | YCY AA Mission Acquisition Corp. II | 5 |
| 7 | JENA JENA ACQUISITION Corp II | 5 |
| 8 | FVAV Fortress Value Acquisition Corp. V | 5 |
| 9 | ANSC Agriculture & Natural Solutions Acquisition Corp | 4 |
| 10 | CEPV Cantor Equity Partners V, Inc. | 6 |
Shareholder Targets
13F filers that own its peers but not HCMAU, quarter ended Jun 30, 2026Found through its holder-overlap peers: BLUW, AEXA, MBVI, RNGT, BREZ, YCY, JENA, FVAV, ANSC, CEPV, KOYN, ALDF, NSTR, EVAC, QLEP, MTNE, FCRS, BCSS, SOUL, UAC. 115 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | ADAGE CAPITAL PARTNERS GP, L.L.C. Registered adviser, Diversified active | $113,829,250 7 held | BCSS, FVAV, MTNE |
| 2 | D. E. Shaw & Co., Inc. Unknown, Systematic-like | $104,890,288 15 held | EVAC, AEXA, BLUW |
| 3 | Fort Baker Capital Management LP Registered adviser, Concentrated | $79,399,900 5 held | BCSS, ANSC, NSTR |
| 4 | Empyrean Capital Partners, LP Registered adviser, Diversified active | $79,001,550 3 held | BCSS, FVAV, AEXA |
| 5 | Sculptor Capital LP Registered adviser, Diversified active | $62,092,080 7 held | BCSS, MTNE, FVAV |
| 6 | First Trust Capital Management L.P. Registered adviser, Diversified active | $51,838,990 12 held | SOUL, ANSC, EVAC |
| 7 | Crossingbridge Advisors, LLC Adviser, Diversified active | $47,149,262 6 held | ANSC, SOUL, QLEP |
| 8 | J. Goldman & Co LP Registered adviser, Diversified active | $42,535,009 6 held | BCSS, ANSC, CEPV |
| 9 | HighTower Advisors, LLC Registered adviser, Diversified active | $35,858,031 6 held | BCSS, EVAC, MBVI |
| 10 | Karpus Management, Inc. Adviser, Diversified active | $35,022,540 7 held | ANSC, SOUL, KOYN |
Quarterly Activity
New and Sold Out count only filers that reported a 13F for both quarters: a first-time filer's book is not a buy, and a fund that has not filed, or withheld its positions under confidential treatment, has not sold.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Small FNY Investment Advisers, LLC HCMAU | $2,094 | 100.00% | 200 | Shares | 2026-10-16 |