13F

Stock

Bleichroeder Acquisiti Corp

Ticker not mapped · held by 54 managers

Reported value

$267.3M

Holders

54

+54 new · −0 exited

Holders’ est. mark

Need a prior quarter

Largest holder

$22.5M

ADAGE CAPITAL PARTNERS GP, L.L.C.

Who holds it

Notable only
InvestorSharesValueEst. markChange
ADAGE CAPITAL PARTNERS GP, L.L.C.2.25M$22.5MNew
CONTINENTAL GENERAL INSURANCE CO2M$20MNew
LMR Partners LLP1.6M$16MNew
Linden Advisors LP1.55M$15.5MNew
MILLENNIUM MANAGEMENT LLC1.35M$13.5MNew
AQR Arbitrage LLC1.31M$13.1MNew
Magnetar Financial LLC1.3M$13MNew
Fort Baker Capital Management LP1.26M$12.6MNew
ARISTEIA CAPITAL, L.L.C.1.2M$12MNew
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND1M$10MNew
Alyeska Investment Group, L.P.1M$10MNew
Alberta Investment Management Corp937.6K$9.39MNew
TENOR CAPITAL MANAGEMENT Co., L.P.750K$7.51MNew
BNP PARIBAS FINANCIAL MARKETS694.4K$6.96MNew
METEORA CAPITAL, LLC601.2K$6.02MNew
Verition Fund Management LLC582.4K$5.84MNew
D. E. Shaw & Co., Inc.526.4K$5.27MNew
Lighthouse Investment Partners, LLC500K$5.01MNew
TWO SIGMA INVESTMENTS, LP453.1K$4.54MNew
MOORE CAPITAL MANAGEMENT, LP450K$4.51MNew
Shaolin Capital Management LLC450K$4.51MNew
Hudson Bay Capital Management LP450K$4.51MNew
Radcliffe Capital Management, L.P.440.1K$4.41MNew
CANTOR FITZGERALD, L. P.428.7K$4.3MNew
SONA ASSET MANAGEMENT (US) LLC346.2K$3.47MNew
HEIGHTS CAPITAL MANAGEMENT, INC279.5K$2.8MNew
Schonfeld Strategic Advisors LLC279.3K$2.8MNew
Periscope Capital Inc.275K$2.76MNew
Polar Asset Management Partners Inc.250K$2.5MNew
DLD Asset Management, LP233.2K$2.34MNew
BERKLEY W R CORP228.5K$2.29MNew
TORONTO DOMINION BANK211.9K$2.12MNew
PICTON MAHONEY ASSET MANAGEMENT200K$2MNew
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS198.2K$1.99MNew
Bulldog Investors, LLP157.8K$1.58MNew
WHITEBOX ADVISORS LLC150K$1.5MNew
Clear Street Group Inc.145.6K$1.46MNew
Saba Capital Management, L.P.143.7K$1.44MNew
Integrated Advisors Network LLC118.2K$1.18MNew
Context Capital Management, LLC100K$1MNew
CSS LLC/IL96.4K$965.9KNew
JPMORGAN CHASE & CO49.9K$499.5KNew
WOLVERINE ASSET MANAGEMENT LLC40K$400.8KNew
Lineage Point Capital LP35K$350.7KNew
GEODE CAPITAL MANAGEMENT, LLC22.4K$224.9KNew
Brevan Howard Capital Management LP20K$200.7KNew
BOOTHBAY FUND MANAGEMENT, LLC15.7K$156.8KNew
Glazer Capital, LLC450K$4.51KNew
Mint Tower Capital Management B.V.150K$1.5KNew
Virtu Financial LLC62.8K$630New
HRT FINANCIAL LP56.4K$564New
Kepos Capital LP34.6K$347New
MORGAN STANLEY14$140New
FNY Investment Advisers, LLC700$7New

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.