PLMK · Plum Acquisition Corp, IV

$10.61 At close · Sep 4

Market Cap

$113.98M

10.70M

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.

Use institutional holdings through the 13F API or MCP →

Quarter:

Holders: 50

Total Value: $113,480,745

Total Shares: 17,166,195

Institutional Ownership Trend

6 quarters

Holder Concentration

Across 50 13F filers · Δ vs Mar 31, 2026

Top Holder

9.2%

+2.5 pts

Top 5

38.3%

+11.0 pts

Top 10

64.1%

+16.5 pts

HHI

527

Broadly held+172

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: -5

Institutional value: -37.5%

Shares held: -29.3%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mega CITADEL ADVISORS LLC	+3,421	13,596
Mid BERKLEY W R CORP	+1,400	805,592
Mega UBS Group AG	+118	288

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Mid ARISTEIA CAPITAL, L.L.C.	−651,175	98,501
Mid Karpus Management, Inc.	−650,450	11,750
Large TORONTO DOMINION BANK	−637,795	349,800
Mid Magnetar Financial LLC	−500,000	250,000
Mega TWO SIGMA INVESTMENTS, LP	−442,343	56,094

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)	Open
Mid Centiva Capital, LP	113,922	$681,408
Large READYSTATE ASSET MANAGEMENT LP	61,497	$0

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Mid Westchester Capital Management, LLC	921,100	$9,726,815
Small Context Capital Management, LLC	864,258	$6,314,869
Mid WOLVERINE ASSET MANAGEMENT LLC	491,317	$5,188,307
Small Wealthspring Capital LLC	291,010	$2,134,176
Mid HIGHBRIDGE CAPITAL MANAGEMENT LLC	173,488	$1,832,033

Filter: New 2 Increased 3 Reduced 24 Sold out 7 Unchanged 21

Showing 68 of 68

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

METEORA CAPITAL, LLC

$10,419,382

9.18%

977,428

D. E. Shaw & Co., Inc.

$9,102,307

8.02%

853,875

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
D. E. SHAW & CO, L.P.	853,875	$9,102,307	100.0%	Defined

BERKLEY W R CORP

$8,587,610

7.57%

805,592

AQR Arbitrage LLC

$7,901,223

6.96%

741,203

Linden Advisors LP

$7,462,000

6.58%

700,000

TENOR CAPITAL MANAGEMENT Co., L.P.

$7,462,000

6.58%

700,000

MIZUHO SECURITIES USA LLC

$6,432,958

5.67%

603,467

Alberta Investment Management Corp

$5,330,000

4.70%

500,000

LMR Partners LLP

$5,330,000

4.70%

500,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
LMR PARTNERS (DIFC) Ltd	500,000	$5,330,000	100.0%	Sole

Radcliffe Capital Management, L.P.

$4,758,336

4.19%

446,373

GLAZER CAPITAL, LLC

$4,624,841

4.08%

433,850

SONA ASSET MANAGEMENT (US) LLC

$3,731,000

3.29%

350,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SONA ASSET MANAGEMENT (UK) LLP	350,000	$3,731,000	100.0%	Other

RIVERNORTH CAPITAL MANAGEMENT, LLC

$3,667,636

3.23%

344,056

GOLDMAN SACHS GROUP INC

$3,623,142

3.19%

339,882

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	339,882	$3,623,142	100.0%	Defined

BOOTHBAY FUND MANAGEMENT, LLC

$3,310,686

2.92%

310,571

MILLENNIUM MANAGEMENT LLC

$3,199,044

2.82%

300,098

First Trust Capital Management L.P.

$3,163,749

2.79%

296,787

HEIGHTS CAPITAL MANAGEMENT, INC

$2,660,405

2.34%

249,569

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
CVI Investments, Inc.	249,569	$2,660,405	100.0%	Other

Jain Global LLC

$2,628,084

2.32%

246,537

CANTOR FITZGERALD, L. P.

$2,026,519

1.79%

190,105

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Cantor Fitzgerald & Co.	190,105	$2,026,519	100.0%	Defined

PICTON MAHONEY ASSET MANAGEMENT

$1,599,000

1.41%

150,000

Periscope Capital Inc.

$1,066,000

0.94%

100,000

Hudson Bay Capital Management LP

$1,066,000

0.94%

100,000

MOORE CAPITAL MANAGEMENT, LP

$799,500

0.70%

75,000

Centiva Capital, LP

$681,408

0.60%

63,922

TWO SIGMA INVESTMENTS, LP

$597,962

0.53%

56,094

Kepos Capital LP

$533,000

0.47%

50,000

TORONTO DOMINION BANK

$531,934

0.47%

49,900

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TD SECURITIES (USA) LLC	49,900	$531,934	100.0%	Defined

Clear Street Group Inc.

$455,075

0.40%

42,690

GEODE CAPITAL MANAGEMENT, LLC

$343,582

0.30%

32,231

CITADEL ADVISORS LLC

$144,933

0.13%

13,596

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	13,596	$144,933	100.0%	Defined

Karpus Management, Inc.

$125,255

0.11%

11,750

Clear Street Group Inc. PLMKU

$107,400

0.09%

10,000

LONGFELLOW INVESTMENT MANAGEMENT CO LLC

$5,052

0.00%

474

UBS Group AG PLMKU

$1,836

0.00%

171

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	171	$1,836	100.0%	Defined

UBS Group AG

$1,247

0.00%

117

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	117	$1,247	100.0%	Defined

MORGAN STANLEY

$639

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY CAPITAL SERVICES, LLC	60	$639	100.0%	Defined

HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND PLMKW

—

500,000

Governors Lane LP PLMKW

—

350,000

Parallax Volatility Advisers, L.P. PLMKW

—

52,443

DLD Asset Management, LP PLMKW

—

161,846

Magnetar Financial LLC PLMKW

—

250,000

Saba Capital Management, L.P. PLMKW

—

99,999

Shaolin Capital Management LLC PLMKW

—

147,142

D. E. Shaw & Co., Inc. PLMKW

—

75,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
D. E. SHAW & CO, L.P.	75,000	$0	—	Defined

AQR Arbitrage LLC PLMKW

—

484,003

Periscope Capital Inc. PLMKW

—

174,999

LONGFELLOW INVESTMENT MANAGEMENT CO LLC PLMKW

—

237

ARISTEIA CAPITAL, L.L.C. PLMKW

—

98,501

WHITEBOX ADVISORS LLC PLMKW

—

50,000

BNP PARIBAS ARBITRAGE, SA PLMKW

—

169,785

Verition Fund Management LLC PLMKW

—

24,507

METEORA CAPITAL, LLC PLMKW

—

12,850

Clear Street Group Inc. PLMKW

—

193,210

Alberta Investment Management Corp PLMKW

—

250,000

Linden Advisors LP PLMKW

—

350,000

MILLENNIUM MANAGEMENT LLC PLMKW

—

475,000

PICTON MAHONEY ASSET MANAGEMENT PLMKW

—

50,000

LMR Partners LLP PLMKW

—

250,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
LMR PARTNERS (DIFC) Ltd	250,000	$0	—	Sole

TORONTO DOMINION BANK PLMKW

—

299,900

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TD SECURITIES (USA) LLC	299,900	$0	—	Defined

Walleye Capital LLC PLMKW

—

542,051

Lineage Point Capital LP PLMKW

—

425,334

Centiva Capital, LP PLMKW

—

50,000

RIVERNORTH CAPITAL MANAGEMENT, LLC PLMKW

—

184,993

TENOR CAPITAL MANAGEMENT Co., L.P. PLMKW

—

350,000

Polar Asset Management Partners Inc. PLMKW

—

350,000

READYSTATE ASSET MANAGEMENT LP PLMKW

—

61,497

MOORE CAPITAL MANAGEMENT, LP PLMKW

—

37,500

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Virtus Investment Advisers, LLC	873,367	$9,222,755	94.8%	Other
Held directly	47,733	$504,060	5.2%	Sole

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Wolverine Holdings, LLC	491,317	$5,188,307	100.0%	Defined

Key facts CIK 2030482 CUSIP G7134A104 13F (30d) 32 filings 32 filers Visit website