Reporting Owner Activity for Magnetar Financial LLC

Form 3/4/5 issuer positions and transaction evidence for this reporting owner.

Issuer positions

7

Largest position

CoreWeave, Inc.

Disclosed value

$152.49M

Recent activity

Available

SEC ownership signals 1 fact
Owner positions from Forms 3/4/5

Reported position value

$152,486,813

Estimated from parsed Forms 3/4/5 when the filing discloses holding values.

Reported issuer count

7

Distinct issuers tied to this reporting owner in parsed SEC filings.

Largest reported position

CoreWeave, Inc. (CRWV)

About $110.56M reported in parsed owner filings.

Latest owner filing

08 May 2026

Most recent owner-level filing date in the parsed SEC record.

+4 more

Additional issuer positions are listed below.

How to read Forms 3/4/5 positions
  • Reported values are estimates from parsed SEC Forms 3/4/5 when the filing includes enough pricing and share data.
  • Verify the source filing before treating any owner position as current.
Identity 1 fact
Location
Evanston, IL
SEC filing record 1 fact
SEC signature
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Administrative Manager of Supernova Management LLC, which is the General Partner of Magnetar Capital Partners LP, which is in turn the Sole Member of Magnetar Financial LLC
SEC evidence 1 fact
Source evidence
Open source filing history

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Reported issuer positions for Magnetar Financial LLC

CRWV Forms 3/4/5

CoreWeave, Inc.

Relationship
10%+ Owner
Holdings value
$110,562,078
Past year net change
-$5,552,381,154
Change %
-98%
Report period
07 May 2026
RPT, RPT-PC Forms 3/4/5

Great Ajax Corp.

Relationship
10%+ Owner
Holdings value
$41,749,953
Past year net change
Change %
Report period
31 Aug 2022
CHPM Forms 3/4/5

CHP Merger Corp.

Relationship
10%+ Owner
Holdings value
Past year net change
Change %
Report period
25 Apr 2022

Insider Transactions Reported by Magnetar Financial LLC:

Sym Company Class Transaction % Reported value Reported price Shares Shares after Date Ownership
* indicates a reported price that failed the local validity check.
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