13F

Stock

Activate Energy Acquisit Cor

Ticker not mapped · held by 57 managers

Reported value

$175.8M

Holders

57

+56 new · −0 exited

Holders’ est. mark

Need a prior quarter

Largest holder

$17.8M

ADAGE CAPITAL PARTNERS GP, L.L.C.

Who holds it

Notable only
InvestorSharesValueEst. markChange
ADAGE CAPITAL PARTNERS GP, L.L.C.1.8M$17.8MNew
Linden Advisors LP1.1M$10.9MNew
PICTON MAHONEY ASSET MANAGEMENT1.02M$10.1MNew
Kryger Capital LLC919.6K$9.09MHeld
AQR Arbitrage LLC870.8K$8.61MNew
Magnetar Financial LLC800K$7.94MNew
TENOR CAPITAL MANAGEMENT Co., L.P.700K$6.92MNew
Alberta Investment Management Corp600K$5.93MNew
BNP PARIBAS FINANCIAL MARKETS536.4K$5.3MNew
Parallax Volatility Advisers, L.P.531.7K$5.29MNew
RIVERNORTH CAPITAL MANAGEMENT, LLC512K$5.06MNew
BlueCrest Capital Management Ltd500K$4.95MNew
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND500K$4.95MNew
Lineage Point Capital LP495K$4.9MNew
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS400K$3.96MNew
MOORE CAPITAL MANAGEMENT, LP400K$3.96MNew
Hudson Bay Capital Management LP375K$3.71MNew
TWO SIGMA INVESTMENTS, LP362.5K$3.59MNew
Polar Asset Management Partners Inc.350K$3.46MNew
Radcliffe Capital Management, L.P.348K$3.44MNew
BERKLEY W R CORP347K$3.43MNew
HIGHBRIDGE CAPITAL MANAGEMENT LLC339.4K$3.37MNew
Periscope Capital Inc.321.6K$3.18MNew
WHITEBOX ADVISORS LLC300K$2.97MNew
Wealthspring Capital LLC298.8K$2.96MNew
Ghisallo Capital Management LLC250K$2.47MNew
Westchester Capital Management, LLC250K$2.47MNew
SONA ASSET MANAGEMENT (US) LLC242.4K$2.4MNew
MARSHALL WACE, LLP240K$2.37MNew
Clear Street Group Inc.204.4K$2.02MNew
First Trust Capital Management L.P.200K$1.98MNew
Verition Fund Management LLC200K$1.98MNew
MILLENNIUM MANAGEMENT LLC200K$1.98MNew
Shaolin Capital Management LLC150K$1.48MNew
D. E. Shaw & Co., Inc.126.9K$1.26MNew
Centiva Capital, LP125K$1.24MNew
ARISTEIA CAPITAL, L.L.C.125K$1.24MNew
Crossingbridge Advisors, LLC100K$989KNew
K2 PRINCIPAL FUND, L.P.100K$989KNew
GRITSTONE ASSET MANAGEMENT LLC100K$989KNew
DLD Asset Management, LP100K$989KNew
L1 Global Manager Pty Ltd70K$692.3KNew
WOLVERINE ASSET MANAGEMENT LLC62.1K$614.2KNew
Context Capital Management, LLC50K$494.5KNew
Schonfeld Strategic Advisors LLC35K$346.1KNew
DELTEC ASSET MANAGEMENT LLC25K$247.3KNew
Gladius Capital Management LP20K$197.8KNew
UBS Group AG16.1K$158.8KNew
TrueMark Investments, LLC15K$148.3KNew
ROYAL BANK OF CANADA13.8K$136KNew
GEODE CAPITAL MANAGEMENT, LLC13.1K$129.8KNew
PenderFund Capital Management Ltd.5K$49.5KNew
Glazer Capital, LLC425K$4.2KNew
Mint Tower Capital Management B.V.200K$1.98KNew
Virtu Financial LLC95.6K$946New
Kepos Capital LP52.6K$520New
MORGAN STANLEY11$109New

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.