Security Snapshot

Plum Acquisition Corp, IV - Class A Common Stock (PLMK) Institutional Ownership

CUSIP: G7134A104

13F Institutional Holders and Ownership History from Q1 2025 to Q1 2026

Latest Period

Q1 2026

Institutions Reporting

43

Shares (Excl. Options)

17,105,713

Price

$10.56

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Type / Class
Equity / Class A Common Stock
Symbol
PLMK on Nasdaq
Shares outstanding
18,508,714
Price per share
$10.56
All holders as of 31 Mar 2026
Q1 2026
Total 13F shares
17,105,713
Total reported value
$180,623,109
% of total 13F portfolios
0%
Share change
+419,286
Value change
+$4,567,903
Number of holders
43
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Key facts

  • PLMK - Plum Acquisition Corp, IV - Class A Common Stock is tracked under CUSIP G7134A104.
  • 43 institutions reported positions in Q1 2026.
  • 5 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 44 to 43 between Q4 2025 and Q1 2026.
  • Reported value moved from $174,170,406 to $180,623,109.

Research use

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Form 13F

Latest holder context comes from 43 institutions filings for Q1 2026.

Open SEC Evidence

Security key

G7134A104

Latest holder period

Q1 2026

13F holders

43

13D/G owners

5

CIK / CUSIP context first

Significant Owners of Plum Acquisition Corp, IV - Class A Common Stock (PLMK) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
PLUM PARTNERS IV, LLC 28% $67,518,500 6,685,000 Plum Partners IV, LLC 16 Jan 2025
METEORA CAPITAL, LLC 6.2% $12,157,116 1,151,242 Meteora Capital, LLC 31 Mar 2026
AQR CAPITAL MANAGEMENT LLC 5.2% $9,700,323 960,428 AQR Capital Management, LLC 31 Mar 2025
Westchester Capital Management, LLC 5% -23% $9,726,816 -$3,209,184 921,100 -25% Westchester Capital Management, LLC 31 Mar 2026
BARCLAYS PLC 3.5% -51% $6,705,815 -$5,123,086 651,050 -43% Barclays PLC 30 Jun 2025

As of 31 Mar 2026, 43 institutional investors reported holding 17,105,713 shares of Plum Acquisition Corp, IV - Class A Common Stock (PLMK). This represents 92% of the company’s total 18,508,714 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of Plum Acquisition Corp, IV - Class A Common Stock (PLMK) together control 80% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
METEORA CAPITAL, LLC 6.2% 1,151,242 +1051% 0.9% $12,157,116
AQR Arbitrage LLC 5.2% 963,504 +0.32% 0.17% $10,174,602
Westchester Capital Management, LLC 5% 921,100 -25% 0.47% $9,726,816
D. E. Shaw & Co., Inc. 4.6% 853,875 0% 0.01% $9,016,920
BERKLEY W R CORP 4.3% 804,192 +4.6% 0.46% $8,492,268
GLAZER CAPITAL, LLC 4.2% 782,959 -0.05% 0.18% $8,268,000
TENOR CAPITAL MANAGEMENT Co., L.P. 3.8% 700,000 0% 0.12% $7,392,000
Linden Advisors LP 3.8% 700,000 0% 0.04% $7,392,000
Karpus Management, Inc. 3.6% 662,200 -1.5% 0.22% $6,992,832
ARISTEIA CAPITAL, L.L.C. 3.5% 651,175 0% 0.16% $6,876,408
MIZUHO SECURITIES USA LLC 3.3% 603,467 +61% 0.15% $6,366,577
Context Capital Management, LLC 3.2% 597,999 -15% 0.15% $6,314,869
Magnetar Financial LLC 2.7% 500,000 0% 0.05% $5,275,000
Alberta Investment Management Corp 2.7% 500,000 0% 0.03% $5,280,000
LMR Partners LLP 2.7% 500,000 0% 0.05% $5,280,000
TWO SIGMA INVESTMENTS, LP 2.7% 498,437 0% 0% $5,263,495
WOLVERINE ASSET MANAGEMENT LLC 2.7% 491,317 -2.9% 0.08% $5,188,308
Radcliffe Capital Management, L.P. 2.4% 449,055 0% 0.36% $4,742,021
TORONTO DOMINION BANK 2.3% 423,310 +1657% 0.01% $4,470,154
Polar Asset Management Partners Inc. 2.2% 400,000 0% 0.1% $4,224,000
SONA ASSET MANAGEMENT (US) LLC 1.9% 350,000 0.14% $3,696,000
RIVERNORTH CAPITAL MANAGEMENT, LLC 1.9% 344,356 -6.8% 0.18% $3,636,399
GOLDMAN SACHS GROUP INC 1.8% 339,882 +0.09% 0% $3,589,154
BOOTHBAY FUND MANAGEMENT, LLC 1.7% 312,844 0.08% $3,303,633
MILLENNIUM MANAGEMENT LLC 1.6% 300,100 +100% 0% $3,169,056

Institutional Holders of Plum Acquisition Corp, IV - Class A Common Stock (PLMK) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q1 17,105,713 $180,623,109 +$4,567,903 $10.56 43
2025 Q4 16,686,427 $174,170,406 +$1,282,635 $10.43 44
2025 Q3 16,815,053 $173,520,845 +$2,457,043 $10.32 42
2025 Q2 16,328,883 $167,912,970 +$24,528,335 $10.28 40
2025 Q1 13,612,238 $136,671,841 +$136,671,841 $10.04 34
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