Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in PLMK held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | METEORA CAPITAL, LLC | 1.2M | $12.2M | +1051.2% | 6.226% | 0.90% |
| 2 | CNH PARTNERS LLC | 964K | $10.2M | +0.3% | 5.210% | 0.17% |
| 3 | Westchester Capital Management, LLC | 921K | $9.7M | -24.8% | 4.981% | 0.46% |
| 4 | D. E. Shaw & Co., Inc. | 854K | $9.0M | 0.0% | 4.617% | 0.01% |
| 5 | BERKLEY W R CORP | 804K | $8.5M | +4.6% | 4.349% | 0.46% |
| 6 | LINDEN ADVISORS LP | 700K | $7.4M | 0.0% | 3.785% | 0.04% |
| 7 | TENOR CAPITAL MANAGEMENT Co., L.P. | 700K | $7.4M | 0.0% | 3.785% | 0.11% |
| 8 | Karpus Management, Inc. | 662K | $7.0M | — | 3.581% | 0.22% |
| 9 | ARISTEIA CAPITAL LLC | 651K | $6.9M | 0.0% | 3.521% | 0.15% |
| 10 | MIZUHO SECURITIES USA LLC | 603K | $6.4M | +60.9% | 3.263% | 0.15% |
| 11 | Context Capital Management, LLC | 598K | $6.3M | -14.6% | 3.234% | 0.15% |
| 12 | LMR Partners LLP | 500K | $5.3M | 0.0% | 2.704% | 0.04% |
| 13 | Alberta Investment Management Corp | 500K | $5.3M | 0.0% | 2.704% | 0.03% |
| 14 | Magnetar Financial LLC | 500K | $5.3M | 0.0% | 2.704% | 0.05% |
| 15 | TWO SIGMA INVESTMENTS, LP | 498K | $5.3M | 0.0% | 2.695% | 0.00% |
| 16 | WOLVERINE ASSET MANAGEMENT LLC | 491K | $5.2M | -2.9% | 2.657% | 0.09% |
| 17 | Radcliffe Capital Management, L.P. | 449K | $4.7M | 0.0% | 2.428% | 0.36% |
| 18 | TORONTO DOMINION BANK | 423K | $4.5M | +1656.6% | 2.289% | 0.01% |
| 19 | Polar Asset Management Partners Inc. | 400K | $4.2M | 0.0% | 2.163% | 0.09% |
| 20 | SONA ASSET MANAGEMENT (US) LLC | 350K | $3.7M | — | 1.893% | 0.13% |
| 21 | RIVERNORTH CAPITAL MANAGEMENT, LLC | 344K | $3.6M | -6.8% | 1.862% | 0.18% |
| 22 | GOLDMAN SACHS GROUP INC | 340K | $3.6M | +0.1% | 1.838% | 0.00% |
| 23 | BOOTHBAY FUND MANAGEMENT, LLC | 313K | $3.3M | — | 1.692% | 0.08% |
| 24 | MILLENNIUM MANAGEMENT LLC | 300K | $3.2M | +100.1% | 1.623% | 0.00% |
| 25 | Vivaldi Asset Management, LLC | 297K | $3.1M | -54.3% | 1.605% | 0.16% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in PLMK — a direct measure of their conviction.
Filings activity in PLMK during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new PLMK position in Q1 2026
Institutions that fully closed their PLMK position in Q1 2026
5 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 44 | +2.3% | 88.46% | +7.87 pp | $174M | +9.8% |
| Q4 2025 | 43 | +4.9% | 80.59% | 1.44 pp | $158M | 1.7% |
| Q3 2025 | 41 | 2.4% | 82.03% | +1.51 pp | $161M | +1.9% |
| Q2 2025 | 42 | +20% | 80.52% | +16.20 pp | $158M | +25% |
| Q1 2025 | 35 | — | 64.32% | — | $126M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying PLMK stock.
Based on Q1 2026 13F filings, institutional ownership of Plum Acquisition Corp. IV stands at 88.5%, held across 44 reporting institutions.
METEORA CAPITAL, LLC is the largest reported institutional holder of PLMK, with approximately 1,151,242 shares worth $0.01B as of Q1 2026.
Yes — 2 widely-followed marquee investors appear among the top 25 institutional holders of PLMK, including TWO SIGMA INVESTMENTS, LP, MILLENNIUM MANAGEMENT LLC.
Our composite Smart Money Score for PLMK is 66 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
8 institutions opened new positions in PLMK during Q1 2026, while 7 fully exited. 28 added to existing positions and 8 trimmed.
PLMK institutional ownership rose by 7.87 percentage points quarter-over-quarter, with a net change of +1 holders.
The top 10 institutions account for 48.7% of all reported 13F value in PLMK, and the top 25 account for 87.1%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Plum Acquisition Corp. IV (PLMK) Institutional Ownership