PLMKU · Plum Acquisition Corp. IV · Holdings
Substantial doubt about the company's ability to continue as a going concern.
“As of June 30, 2026, management has determined that mandatory liquidation, should a Business Combination not occur, and potential subsequent dissolution and the liquidity condition issue raise substantial doubt about the Company's ability to continue as a going concern for one year from the date the unaudited condensed consolidated financial statements are issued.”View the 10-Q filed Aug 14, 2026
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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 2 13F filers · Δ vs Mar 31, 2026Who Holds PLMKU
Last 6 quarters through Jun 30, 2026Each 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: 2 filers, like-for-like change -89.8%; actively managed books -89.8%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Bank | 1.7% | 1 | -99.7% |
| Registered adviser | 0.0% | 0 | — |
| Non-US | 0.0% | 0 | — |
| Broker-dealer | 0.0% | 0 | — |
| Unknown | 98.3% | 1 | -79.9% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Concentrated | 98.3% | 1 | -79.9% |
| Diversified active | 1.7% | 1 | -99.7% |
| Systematic-like | 0.0% | 0 | — |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Medium turnover | 1.7% | 1 | -99.7% |
| Low turnover | 0.0% | 0 | — |
| High turnover | 0.0% | 0 | — |
| Unknown | 98.3% | 1 | -79.9% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 98.3% | 1 | -79.9% |
| Long horizon | 1.7% | 1 | -99.7% |
| Medium horizon | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| $10B to $100B | 98.3% | 1 | -90.0% |
| $100B or more | 1.7% | 1 | +0.6% |
| Under $1B | 0.0% | 0 | — |
| $1B to $10B | 0.0% | 0 | — |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Pooled investment vehicles | 0.0% | 0 | — |
| Registered funds and BDCs | 0.0% | 0 | — |
| Charitable organizations | 0.0% | 0 | — |
| Unknown | 100.0% | 2 | -89.8% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 0.0% | 0 | — |
| No private funds | 0.0% | 0 | — |
| Unknown | 100.0% | 2 | -89.8% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 98.3% | 1 | -79.9% |
| Outside the US | 1.7% | 1 | -99.7% |
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
2 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).
Shared Holders
Companies PLMKU's active holders also own, quarter ended Jun 30, 2026| # | Company | Shared holders |
|---|---|---|
| 1 | TVAI Thayer Ventures Acquisition Corp II | 6 |
| 2 | CTAA Clearthink 1 Acquisition Corp. | 4 |
| 3 | GIW GigCapital8 Corp. | 5 |
| 4 | XCBE X3 Acquisition Corp. Ltd. | 5 |
| 5 | XRPNU Armada Acquisition Corp. II | 5 |
| 6 | FACT FACT II Acquisition Corp. | 4 |
| 7 | DNMX Dynamix Corp III | 4 |
| 8 | KFII K&F Growth Acquisition Corp. II | 5 |
| 9 | SZZL Sizzle Acquisition Corp. II | 5 |
| 10 | COPL Copley Acquisition Corp | 4 |
Shareholder Targets
13F filers that own its peers but not PLMKU, quarter ended Jun 30, 2026Found through its holder-overlap peers: TVAI, CTAA, GIW, XCBE, XRPNU, FACT, DNMX, KFII, SZZL, COPL, SDHI, TACH, SOUL, DYOR, TRGS, ONEN, HCMA, BDCI, GPAC, DAAQ. 108 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | Westchester Capital Management, LLC Registered adviser, Diversified active | $108,828,313 13 held | KFII, GIW, SOUL |
| 2 | WOLVERINE ASSET MANAGEMENT LLC Registered adviser, Diversified active | $104,565,392 20 held | SOUL, BDCI, KFII |
| 3 | ADAGE CAPITAL PARTNERS GP, L.L.C. Registered adviser, Diversified active | $94,260,252 6 held | GPAC, XCBE, TRGS |
| 4 | HIGHBRIDGE CAPITAL MANAGEMENT LLC Registered adviser, Diversified active | $93,917,993 14 held | ONEN, FACT, COPL |
| 5 | Crossingbridge Advisors, LLC Adviser, Diversified active | $65,401,947 11 held | SOUL, TACH, SZZL |
| 6 | Arrington Capital Management, LLC Registered adviser, Concentrated | $60,513,320 1 held | XRPNU |
| 7 | HGC Investment Management Inc. Non-US, Diversified active | $56,452,791 12 held | SDHI, SOUL, TRGS |
| 8 | Wealthspring Capital LLC Registered adviser, Diversified active | $40,685,211 10 held | FACT, TACH, SZZL |
| 9 | MANGROVE PARTNERS IM, LLC Registered adviser, Diversified active | $32,605,815 6 held | CTAA, KFII, COPL |
| 10 | COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS Unknown, Diversified active | $32,201,139 10 held | SDHI, TACH, TVAI |
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.
Top Buyers
vs Mar 31, 2026| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Mega UBS Group AG | +1 | 171 |
Top Sellers
vs Mar 31, 2026| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Large Clear Street Group Inc. | −39,857 | 10,000 |
Top New Positions
vs Mar 31, 2026Top Sold-Out Positions
vs Mar 31, 2026| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Large TORONTO DOMINION BANK | 50,000 | $538,500 |
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Large Clear Street Group Inc. PLMKU | $107,400 | 98.32% | 10,000 | Shares | 2026-08-12 | |
| Mega UBS Group AG Bank PLMKU | $1,836 | 1.68% | 171 | Shares | 2026-08-13 |