BLRK · Bluerock Acquisition Corp.

$10.07 +0.01 (+0.05%) At close · Aug 26

Market Cap

$231.49M

23.00M

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.

Quarter:

Holders: 71

Total Value: $168,554,611

Total Shares: 21,536,278

Institutional Ownership Trend

3 quarters

Holder Concentration

Across 71 13F filers · Δ vs Mar 31, 2026

Top Holder

4.7%

+0.0 pts

Top 5

21.0%

+0.0 pts

Top 10

35.9%

+0.1 pts

HHI

250

Broadly held+3

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: -2

Institutional value: +0.6%

Shares held: +1.2%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mega MILLENNIUM MANAGEMENT LLC	+200,000	800,000
Small CSS LLC/IL	+153,597	288,064
Mid MMCAP International Inc. SPC	+133,332	533,332
Mid GLAZER CAPITAL, LLC	+107,707	579,157
Small RLH Capital LLC	+91,666	366,666

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Small Wealthspring Capital LLC	−154,423	418,888
Large ADAGE CAPITAL PARTNERS GP, L.L.C.	−100,000	500,000
Large COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS	−100,000	300,000
Small Context Capital Management, LLC	−83,333	250,000
Small METEORA CAPITAL, LLC	−73,500	274,553

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Mid MIZUHO SECURITIES USA LLC	69,267	$691,284
Mid Arax Advisory Partners	75,728	$566,824
Small StoneX Group Inc.	30,001	$299,409
Small O'Connor Alternative Investments LLC	33,333	$0

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Small SYQUANT CAPITAL SAS	105,750	$1,060,672
Small DELTEC ASSET MANAGEMENT LLC	49,950	$494,505
Mega ROYAL BANK OF CANADA	6,000	$49,500
Mega UBS Group AG	4,047	$40,065
Small FNY Investment Advisers, LLC	3,800	$38,114

Filter: New 4 Increased 14 Reduced 13 Sold out 6 Unchanged 40

Showing 100 of 111

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

Magnetar Financial LLC

$7,983,920

4.74%

799,992

AQR Arbitrage LLC

$7,488,373

4.44%

750,338

Linden Advisors LP

$7,485,000

4.44%

750,000

Mint Tower Capital Management B.V.

$6,487,000

3.85%

650,000

MILLENNIUM MANAGEMENT LLC

$5,988,000

3.55%

600,000

ARISTEIA CAPITAL, L.L.C.

$5,095,887

3.02%

510,610

PICTON MAHONEY ASSET MANAGEMENT

$4,990,000

2.96%

500,000

Alberta Investment Management Corp

$4,990,000

2.96%

500,000

Polar Asset Management Partners Inc.

$4,990,000

2.96%

500,000

HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND

$4,989,980

2.96%

499,998

BNP PARIBAS ARBITRAGE, SA

$4,650,370

2.76%

465,969

GLAZER CAPITAL, LLC

$4,605,161

2.73%

461,439

ADAGE CAPITAL PARTNERS GP, L.L.C.

$4,491,000

2.66%

450,000

WOLVERINE ASSET MANAGEMENT LLC

$4,193,296

2.49%

420,170

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

Manager	Shares	Value (USD)	% of position	Discretion
Wolverine Holdings, LLC	420,170	$4,193,296	100.0%	Defined

Wealthspring Capital LLC

$4,180,502

2.48%

418,888

LMR Partners LLP BLRKU

$4,044,000

2.40%

400,000

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	400,000	$4,044,000	100.0%	Sole

Radcliffe Capital Management, L.P.

$3,996,301

2.37%

400,431

Periscope Capital Inc.

$3,992,000

2.37%

400,000

TENOR CAPITAL MANAGEMENT Co., L.P.

$3,992,000

2.37%

400,000

MMCAP International Inc. SPC

$3,992,000

2.37%

400,000

Verition Fund Management LLC

$3,493,000

2.07%

350,000

L1 Global Manager Pty Ltd

$3,493,000

2.07%

350,000

Hudson Bay Capital Management LP

$3,492,980

2.07%

349,998

First Trust Capital Management L.P.

$3,323,729

1.97%

333,039

OMERS ADMINISTRATION Corp BLRKU

$3,033,000

1.80%

300,000

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS

$2,994,000

1.78%

300,000

RIVERNORTH CAPITAL MANAGEMENT, LLC

$2,993,970

1.78%

299,997

Kryger Capital LLC

$2,748,312

1.63%

275,382

RLH Capital LLC

$2,744,500

1.63%

275,000

TWO SIGMA INVESTMENTS, LP

$2,713,312

1.61%

271,875

Westchester Capital Management, LLC BLRKU

$2,527,499

1.50%

250,000

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

Manager	Shares	Value (USD)	% of position	Discretion
WESTCHESTER CAPITAL PARTNERS, LLC	2,181	$22,049	0.9%	Sole
Virtus Investment Advisers, LLC	226,755	$2,292,493	90.7%	Other
Held directly	21,064	$212,957	8.4%	Sole

Context Capital Management, LLC

$2,495,000

1.48%

250,000

TORONTO DOMINION BANK BLRKU

$2,385,333

1.42%

235,938

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	235,938	$2,385,333	100.0%	Defined

WHITEBOX ADVISORS LLC

$2,180,879

1.29%

218,525

Shaolin Capital Management LLC

$2,148,943

1.27%

215,325

METEORA CAPITAL, LLC

$1,881,758

1.12%

188,553

Quarry LP

$1,746,500

1.04%

175,000

Clear Street Group Inc.

$1,635,472

0.97%

163,875

SONA ASSET MANAGEMENT (US) LLC

$1,497,000

0.89%

150,000

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	150,000	$1,497,000	100.0%	Other

MOORE CAPITAL MANAGEMENT, LP

$1,497,000

0.89%

150,000

Lineage Point Capital LP

$1,437,120

0.85%

144,000

GRITSTONE ASSET MANAGEMENT LLC

$1,247,500

0.74%

125,000

Ghisallo Capital Management LLC BLRKU

$1,011,000

0.60%

100,000

HRT FINANCIAL LP BLRKU

$1,009,048

0.60%

99,807

Cable Car Capital, LP

$998,019

0.59%

100,002

TIG Advisors, LLC

$998,000

0.59%

100,000

HEIGHTS CAPITAL MANAGEMENT, INC

$998,000

0.59%

100,000

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

Manager	Shares	Value (USD)	% of position	Discretion
CVI Investments, Inc.	100,000	$998,000	100.0%	Other

BERKLEY W R CORP

$989,097

0.59%

99,108

Karpus Management, Inc.

$848,300

0.50%

85,000

MIZUHO SECURITIES USA LLC

$691,284

0.41%

69,267

Arax Advisory Partners

$566,824

0.34%

56,796

JPMORGAN CHASE & CO BLRKU

$505,500

0.30%

50,000

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

Manager	Shares	Value (USD)	% of position	Discretion
J.P. Morgan Securities LLC	50,000	$505,500	100.0%	Defined

Quarry LP BLRKU

$505,500

0.30%

50,000

CANTOR FITZGERALD, L. P. BLRKU

$351,828

0.21%

34,800

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

Manager	Shares	Value (USD)	% of position	Discretion
Cantor Fitzgerald & Co.	34,800	$351,828	100.0%	Defined

ABC ARBITRAGE SA

$349,300

0.21%

35,000

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

Manager	Shares	Value (USD)	% of position	Discretion
ABC ARBITRAGE ASSET MANAGEMENT	35,000	$349,300	100.0%	Other

StoneX Group Inc.

$299,409

0.18%

30,001

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

Manager	Shares	Value (USD)	% of position	Discretion
STONEX FINANCIAL INC.	30,001	$299,409	100.0%	Defined

Crossingbridge Advisors, LLC

$299,400

0.18%

30,000

BlueCrest Capital Management Ltd BLRKU

$252,750

0.15%

25,000

Stoic Point Capital Management LLC BLRKU

$252,750

0.15%

25,000

PRELUDE CAPITAL MANAGEMENT, LLC BLRKU

$252,750

0.15%

25,000

Centiva Capital, LP

$249,500

0.15%

25,000

BOOTHBAY FUND MANAGEMENT, LLC BLRKU

$225,584

0.13%

22,313

Virtu Financial LLC

$203,881

0.12%

20,429

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

Manager	Shares	Value (USD)	% of position	Discretion
Virtu Americas LLC	20,429	$203,881	100.0%	Defined

Schonfeld Strategic Advisors LLC

$99,809

0.06%

10,001

STATE OF WISCONSIN INVESTMENT BOARD

$99,800

0.06%

10,000

Clear Street Group Inc. BLRKU

$82,457

0.05%

8,156

Kepos Capital LP

$74,850

0.04%

7,500

OSAIC HOLDINGS, INC. BLRKU

$5,055

0.00%

500

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

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	500	$5,055	100.0%	Defined

MORGAN STANLEY

$299

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	30	$299	100.0%	Defined

HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND BLRKU

$20

0.00%

Magnetar Financial LLC BLRKW

—

266,664

Lineage Point Capital LP BLRKW

—

47,999

Mint Tower Capital Management B.V. BLRKW

—

216,666

ARISTEIA CAPITAL, L.L.C. BLRKW

—

170,202

Verition Fund Management LLC BLRKW

—

111,666

Quarry LP BLRKW

—

58,333

BNP PARIBAS ARBITRAGE, SA BLRKW

—

141,488

Alberta Investment Management Corp BLRKW

—

166,666

SONA ASSET MANAGEMENT (US) LLC BLRKW

—

49,997

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	49,997	$0	—	Other

Arax Advisory Partners BLRKW

—

18,932

O'Connor Alternative Investments LLC BLRKW

—

33,333

TIG Advisors, LLC BLRKW

—

33,331

CSS LLC/IL BLRKW

—

288,064

Radcliffe Capital Management, L.P. BLRKW

—

133,475

K2 PRINCIPAL FUND, L.P. BLRKW

—

33,333

WOLVERINE ASSET MANAGEMENT LLC BLRKW

—

16,666

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

Manager	Shares	Value (USD)	% of position	Discretion
Wolverine Holdings, LLC	16,666	$0	—	Defined

WHITEBOX ADVISORS LLC BLRKW

—

72,841

Cable Car Capital, LP BLRKW

—

33,334

METEORA CAPITAL, LLC BLRKW

—

86,000

Polar Asset Management Partners Inc. BLRKW

—

166,666

Shaolin Capital Management LLC BLRKW

—

83,332

GRITSTONE ASSET MANAGEMENT LLC BLRKW

—

41,666

HIGHBRIDGE CAPITAL MANAGEMENT LLC BLRKW

—

148,723

Kryger Capital LLC BLRKW

—

93,741

TORONTO DOMINION BANK BLRKW

—

89,725

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	89,725	$0	—	Defined

RLH Capital LLC BLRKW

—

91,666

ADAGE CAPITAL PARTNERS GP, L.L.C. BLRKW

—

50,000

TENOR CAPITAL MANAGEMENT Co., L.P. BLRKW

—

133,333

MOORE CAPITAL MANAGEMENT, LP BLRKW

—

49,999

GLAZER CAPITAL, LLC BLRKW

—

117,718

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

Manager	Shares	Value (USD)	% of position	Discretion
CVI Investments, Inc.	20,465	$0	—	Other

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

Manager	Shares	Value (USD)	% of position	Discretion
RBC CMA LTD.	5,000	$49,500	100.0%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
UBS Europe SE	4,047	$40,065	100.0%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
RBC CMA LTD.	1,000	$0	—	Defined

Key facts CIK 2081532 CUSIP G1352R105 13F (30d) 67 filings 67 filers Visit website