BBCQ · Bleichroeder Acquisition Corp. II

$9.81 -0.37 (-3.63%)

Market Cap

$390.23M

38.33M

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: 74

Total Value: $271,725,167

Total Shares: 31,793,631

Institutional Ownership Trend

2 quarters

Holder Concentration

Across 74 13F filers · Δ vs Mar 31, 2026

Top Holder

8.2%

+0.2 pts

Top 5

32.7%

+1.2 pts

Top 10

53.8%

+0.3 pts

HHI

403

Broadly held+19

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: +10

Institutional value: -5.4%

Shares held: -12.0%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mid HIGHBRIDGE CAPITAL MANAGEMENT LLC	+1,599,242	1,632,494
Mid Governors Lane LP	+1,468,809	1,485,475
Mid Fort Baker Capital Management LP	+823,568	2,499,207
Mid Integrated Advisors Network LLC	+574,350	692,520
Mid SONA ASSET MANAGEMENT (US) LLC	+437,125	900,000

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Large ADAGE CAPITAL PARTNERS GP, L.L.C.	−1,705,843	1,068,599
Small CONTINENTAL GENERAL INSURANCE CO	−1,274,861	1,391,805
Large HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND	−1,000,000	333,333
Mid ARISTEIA CAPITAL, L.L.C.	−668,600	1,188,958
Mega MILLENNIUM MANAGEMENT LLC	−661,109	1,329,166

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Mega ENVESTNET ASSET MANAGEMENT INC	713,123	$7,359,429
Mid Shay Capital LLC	411,993	$4,251,767
Small STEINBERGANNA WEALTH MANAGEMENT	163,198	$1,684,203
Large PEAK6 LLC	399,886	$871,751
Large Cetera Investment Advisers	81,743	$843,587

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Mid METEORA CAPITAL, LLC	616,869	$6,038,501
Mid Lighthouse Investment Partners, LLC	500,000	$5,010,000
Mega TWO SIGMA INVESTMENTS, LP	453,124	$4,540,302
Mid GLAZER CAPITAL, LLC	450,000	$4,509,000
Small HEIGHTS CAPITAL MANAGEMENT, INC	372,729	$2,889,582

Filter: New 24 Increased 10 Reduced 28 Sold out 14 Unchanged 12

Showing 100 of 100

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

Fort Baker Capital Management LP

$21,486,838

7.91%

2,082,058

HIGHBRIDGE CAPITAL MANAGEMENT LLC

$16,847,338

6.20%

1,632,494

LMR Partners LLP

$16,512,000

6.08%

1,600,000

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	1,600,000	$16,512,000	100.0%	Sole

Linden Advisors LP

$15,996,000

5.89%

1,550,000

Governors Lane LP

$14,448,000

5.32%

1,400,000

Alyeska Investment Group, L.P.

$12,170,169

4.48%

1,179,280

Magnetar Financial LLC

$12,126,000

4.46%

1,175,000

ADAGE CAPITAL PARTNERS GP, L.L.C.

$11,027,941

4.06%

1,068,599

AQR Arbitrage LLC

$9,713,700

3.57%

941,250

Alberta Investment Management Corp

$9,675,774

3.56%

937,575

SONA ASSET MANAGEMENT (US) LLC

$9,287,999

3.42%

900,000

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	900,000	$9,287,999	100.0%	Other

MILLENNIUM MANAGEMENT LLC

$8,312,244

3.06%

805,450

TENOR CAPITAL MANAGEMENT Co., L.P.

$7,740,000

2.85%

750,000

ARISTEIA CAPITAL, L.L.C.

$7,678,080

2.83%

744,000

CONTINENTAL GENERAL INSURANCE CO

$7,483,434

2.75%

725,139

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

Manager	Shares	Value (USD)	% of position	Discretion
Continental Insurance Group, Ltd. joint	725,139	$7,483,434	100.0%	Defined

ENVESTNET ASSET MANAGEMENT INC

$7,359,429

2.71%

713,123

Integrated Advisors Network LLC

$7,146,806

2.63%

692,520

D. E. Shaw & Co., Inc.

$5,432,076

2.00%

526,364

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.	526,364	$5,432,076	100.0%	Defined

BNP PARIBAS ARBITRAGE, SA

$5,143,230

1.89%

498,375

MOORE CAPITAL MANAGEMENT, LP

$4,644,000

1.71%

450,000

Verition Fund Management LLC

$4,282,800

1.58%

415,000

Shay Capital LLC

$4,251,767

1.56%

411,993

CANTOR FITZGERALD, L. P.

$4,244,915

1.56%

411,329

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

Manager	Shares	Value (USD)	% of position	Discretion
Cantor Fitzgerald & Co.	411,329	$4,244,915	100.0%	Defined

DLD Asset Management, LP

$2,872,964

1.06%

278,388

Polar Asset Management Partners Inc.

$2,580,000

0.95%

250,000

Radcliffe Capital Management, L.P.

$2,102,999

0.77%

203,779

FNY Investment Advisers, LLC

$1,936,238

0.71%

187,620

STEINBERGANNA WEALTH MANAGEMENT

$1,684,203

0.62%

163,198

Clear Street Group Inc. BBCQU

$1,640,734

0.60%

148,752

Periscope Capital Inc.

$1,599,600

0.59%

155,000

WHITEBOX ADVISORS LLC

$1,548,000

0.57%

150,000

Mint Tower Capital Management B.V.

$1,548,000

0.57%

150,000

Hudson Bay Capital Management LP

$1,507,194

0.55%

146,046

Shaolin Capital Management LLC

$1,479,888

0.54%

143,400

CONTINENTAL GENERAL INSURANCE CO BBCQW

$1,453,331

0.53%

666,666

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

Manager	Shares	Value (USD)	% of position	Discretion
Continental Insurance Group, Ltd. joint	666,666	$1,453,331	100.0%	Defined

Linden Advisors LP BBCQW

$1,358,113

0.50%

622,988

LMR Partners LLP BBCQW

$1,162,663

0.43%

533,332

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	533,332	$1,162,663	100.0%	Sole

MILLENNIUM MANAGEMENT LLC BBCQW

$1,141,700

0.42%

523,716

Context Capital Management, LLC

$1,032,000

0.38%

100,000

PICTON MAHONEY ASSET MANAGEMENT

$995,013

0.37%

96,416

AQR Arbitrage LLC BBCQW

$986,072

0.36%

452,327

ARISTEIA CAPITAL, L.L.C. BBCQW

$970,008

0.36%

444,958

Saba Capital Management, L.P.

$966,953

0.36%

93,697

Fort Baker Capital Management LP BBCQW

$909,384

0.33%

417,149

PEAK6 LLC BBCQW

$871,751

0.32%

399,886

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

Manager	Shares	Value (USD)	% of position	Discretion
PEAK6 Investments LLC joint	399,886	$871,751	100.0%	Defined

Cetera Investment Advisers

$843,587

0.31%

81,743

Bulldog Investors, LLP

$774,000

0.28%

75,000

Magnetar Financial LLC BBCQW

$770,043

0.28%

353,231

HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND BBCQW

$726,665

0.27%

333,333

Clear Street Group Inc.

$715,186

0.26%

69,301

Alberta Investment Management Corp BBCQW

$681,304

0.25%

312,525

CSS LLC/IL

$587,197

0.22%

56,899

PRELUDE CAPITAL MANAGEMENT, LLC

$581,810

0.21%

56,377

HRT FINANCIAL LP

$575,659

0.21%

55,781

TENOR CAPITAL MANAGEMENT Co., L.P. BBCQW

$545,000

0.20%

250,000

SEI INVESTMENTS CO

$528,033

0.19%

51,166

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

Manager	Shares	Value (USD)	% of position	Discretion
SEI INVESTMENTS MANAGEMENT CORP	51,166	$528,033	100.0%	Sole

JPMORGAN CHASE & CO

$514,668

0.19%

49,871

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	49,871	$514,668	100.0%	Defined

BERKLEY W R CORP

$508,590

0.19%

49,282

BNP PARIBAS ARBITRAGE, SA BBCQW

$467,245

0.17%

214,333

Advyzon Investment Management, LLC

$432,645

0.16%

41,923

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

Manager	Shares	Value (USD)	% of position	Discretion
Murphy Amy B joint	40,654	$419,549	97.0%	Other
Held directly	1,269	$13,096	3.0%	Sole

MML INVESTORS SERVICES, LLC

$418,465

0.15%

40,549

MIZUHO SECURITIES USA LLC

$412,800

0.15%

40,000

Centiva Capital, LP BBCQW

$388,608

0.14%

178,261

Clear Street Group Inc. BBCQW

$365,095

0.13%

167,475

Intellectus Partners, LLC

$361,200

0.13%

35,000

Sculptor Capital LP BBCQW

$356,229

0.13%

163,408

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

Manager	Shares	Value (USD)	% of position	Discretion
Sculptor Capital II LP joint	163,408	$356,229	100.0%	Sole

Schonfeld Strategic Advisors LLC

$355,286

0.13%

34,427

MOORE CAPITAL MANAGEMENT, LP BBCQW

$326,997

0.12%

149,999

Shaolin Capital Management LLC BBCQW

$312,960

0.12%

143,560

CITADEL ADVISORS LLC

$307,401

0.11%

29,787

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	29,787	$307,401	100.0%	Defined

Qube Research & Technologies Ltd

$258,082

0.09%

25,008

Ausdal Financial Partners, Inc.

$248,454

0.09%

24,075

GEODE CAPITAL MANAGEMENT, LLC

$231,591

0.09%

22,441

Lineage Point Capital LP BBCQW

$213,293

0.08%

97,841

Brevan Howard Capital Management LP

$206,400

0.08%

20,000

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

Manager	Shares	Value (USD)	% of position	Discretion
Brevan Howard US Investment Management, LP	20,000	$206,400	100.0%	Defined

WOLVERINE ASSET MANAGEMENT LLC

$196,441

0.07%

19,035

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

Manager	Shares	Value (USD)	% of position	Discretion
Wolverine Holdings, LLC	19,035	$196,441	100.0%	Defined

Kepos Capital LP

$196,080

0.07%

19,000

Governors Lane LP BBCQW

$186,335

0.07%

85,475

Polar Asset Management Partners Inc. BBCQW

$181,665

0.07%

83,333

Arkadios Wealth Advisors

$174,809

0.06%

16,939

Vantus Wealth LLC

$158,618

0.06%

15,370

Rangeley Capital, LLC

$154,800

0.06%

15,000

JANE STREET GROUP, LLC

$129,268

0.05%

12,526

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

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	12,526	$129,268	100.0%	Defined

Saba Capital Management, L.P. BBCQW

$126,658

0.05%

58,100

Lineage Point Capital LP

$110,000

0.04%

10,659

Mint Tower Capital Management B.V. BBCQW

$109,000

0.04%

50,000

WHITEBOX ADVISORS LLC BBCQW

$109,000

0.04%

50,000

Signature Equity Partners, LLC

$107,049

0.04%

10,373

Periscope Capital Inc. BBCQW

$87,200

0.03%

40,000

CSS LLC/IL BBCQW

$72,665

0.03%

33,333

Schonfeld Strategic Advisors LLC BBCQW

$71,940

0.03%

33,000

PRELUDE CAPITAL MANAGEMENT, LLC BBCQW

$54,500

0.02%

25,000

Walleye Capital LLC BBCQW

$50,358

0.02%

23,100

Jain Global LLC BBCQW

$45,891

0.02%

21,051

HRT FINANCIAL LP BBCQW

$27,269

0.01%

12,509

TORNO CAPITAL, LLC

$3,096

0.00%

300

MORGAN STANLEY

$392

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	38	$392	100.0%	Defined

UBS Group AG BBCQU

$209

0.00%

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

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	19	$209	100.0%	Defined

Caitong International Asset Management Co., Ltd

$72

0.00%

WELLS FARGO & COMPANY/MN BBCQU

$11

0.00%

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

Manager	Shares	Value (USD)	% of position	Discretion
Wells Fargo Securities, LLC	1	$11	100.0%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
North Rock Capital Management, LLC	500,000	$5,010,000	100.0%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
CVI Investments, Inc.	279,547	$2,801,060	100.0%	Other

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	211,928	$2,123,518	100.0%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
Virtu Americas LLC	62,841	$629,666	100.0%	Defined

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	113,346	$107,678	100.0%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
CVI Investments, Inc.	93,182	$88,522	100.0%	Other

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	2	$20	100.0%	Defined

Key facts CIK 2088295 CUSIP G1170E104 13F (30d) 78 filings 74 filers Visit website Investor relations