13F

Stock

Sim Acquisition Corp. I

Ticker not mapped · held by 45 managers

Reported value

$225.5M

Holders

45

+4 new · −1 exited

Holders’ est. mark

$2.55M

Price effect on 40 books still in the name

Largest holder

$20.8M

Magnetar Financial LLC

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
Magnetar Financial LLC1.95M$20.8M$233.4KAdded$233.4K
Karpus Management, Inc.1.73M$18.5M$224.3KAdded$113.4K
AQR Arbitrage LLC1.46M$15.6M$203.8KAdded$200.8K
PICTON MAHONEY ASSET MANAGEMENT1.3M$13.9M$169KCut−$5.13M
First Trust Capital Management L.P.1.29M$13.9M$168.2KCut−$5.19M
D. E. Shaw & Co., Inc.987.5K$10.6M$138.3KAdded$138.3K
LMR Partners LLP980K$10.5M$127.4KAdded$127.4K
MMCAP International Inc. SPC980K$10.5M$127.4KAdded$127.4K
BERKLEY W R CORP912.3K$9.78M$67.8KAdded$4.26M
TORONTO DOMINION BANK780.6K$8.37M$47.3KAdded$4.52M
Westchester Capital Management, LLC770.3K$8.27M$107.8KCut−$5.19M
Alberta Investment Management Corp750K$8.05M$105KAdded$105K
GOLDMAN SACHS GROUP INC623.3K$6.68M$81KAdded$81K
Wealthspring Capital LLC617.9K$6.62M$80.3KAdded$46.1K
Hudson Bay Capital Management LP596.1K$6.4M$83.5KAdded$73.6K
WOLVERINE ASSET MANAGEMENT LLC551.8K$5.92M$71.7KCut−$1.84M
Radcliffe Capital Management, L.P.539.4K$5.78M$69.7KAdded$103.2K
DLD Asset Management, LP501.4K$5.38MNew
WHITEBOX ADVISORS LLC500K$5.36M$65KAdded$65K
TWO SIGMA INVESTMENTS, LP500K$5.36M$65KAdded$65K
RIVERNORTH CAPITAL MANAGEMENT, LLC357.6K$3.83M$46.5KCut−$165.3K
Periscope Capital Inc.300K$3.22M$39KCut−$1.55M
Context Capital Management, LLC270K$2.89M$35.1KAdded$35.1K
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND250K$2.68M$35KAdded$35K
L1 Global Manager Pty Ltd200K$2.14M$26KAdded$26K
Bulldog Investors, LLP200K$2.14M$26KCut−$2.25M
Verition Fund Management LLC191.1K$2.05M$26.8KAdded$26.8K
Crossingbridge Advisors, LLC104.5K$1.12MNew
Quarry LP100K$1.07M$13KAdded$13K
RLH Capital LLC100K$1.07MHeld
Shaolin Capital Management LLC100K$1.07M$13KCut−$1.18M
DELTEC ASSET MANAGEMENT LLC100K$1.07M$13KAdded$13K
SONA ASSET MANAGEMENT (US) LLC100K$1.07MNew
MIZUHO SECURITIES USA LLC83K$888.3K$13.4KCut−$5.95M
Schonfeld Strategic Advisors LLC69.4K$743.9K$8.29KAdded$68.6K
RiverPark Advisors, LLC53.9K$578.3KNew
UBS Group AG43K$460.8K$5.15KAdded$41.4K
Clear Street Group Inc.35.3K$378.3K$171Added$364.3K
HGC Investment Management Inc.25K$268K$3.25KAdded$3.25K
PenderFund Capital Management Ltd.20.4K$218.9K$2.86KAdded$2.86K
ROBINSON CAPITAL MANAGEMENT, LLC15.3K$164.7K$3.2KAdded$3.2K
LONGFELLOW INVESTMENT MANAGEMENT CO LLC7.57K$81.1K$984Added$984
Glazer Capital, LLC225.1K$2.41K$30Added$30
MORGAN STANLEY71$761$9Cut−$287
Kepos Capital LP30K$322$4Added$4

Who left

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.