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Magnetar Financial’s Organon & Co OGN Stock Holding History

Magnetar Financial’s Portfolio OGN Stock Details OGN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2024
Q2 		– Sell
-883,900
Closed -$3.62M – 588
2024
Q1 		$3.62M Buy
883,900
+13,900
+2% +$239K 0.08% 144
2023
Q4 		$1.25M Buy
+870,000
New +$11.8M 0.03% 244

Other funds holding OGN

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
PCM
Pentwater Capital Management Naples, Florida $16.4B AUM 55.44% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Man Group
Man Group London, United Kingdom $62.7B AUM 29.77% 1-Year Est. Return
AA
AQR Arbitrage Greenwich, Connecticut $7.02B AUM 31.58% 1-Year Est. Return

Magnetar Financial's OGN Position: Q2 2026 in Review

Magnetar Financial opened a new position in Organon & Co (OGN) in Q2 2026: 2,810,019 shares worth $38M. The stake represents 0.35% of the portfolio and ranks #38 among its holdings. This is a return to the name: Magnetar Financial previously reported a position in OGN as recently as Q4 2024.

Magnetar Financial first reported a position in OGN in Q2 2021 and has held it in 11 quarters since. The position peaked at $38.1M in Q3 2023. 636 funds tracked by Wall St. Rank hold OGN as of Q2 2026.

  • Magnetar Financial held 2,810,019 shares of Organon & Co worth $38M as of Q2 2026.
  • Organon & Co was a new Magnetar Financial position in Q2 2026.
  • Organon & Co made up 0.35% of Magnetar Financial's portfolio in Q2 2026, its #38 holding.
  • Magnetar Financial first reported a position in Organon & Co in Q2 2021 and has held it in 11 quarters since.
  • Magnetar Financial's Organon & Co position peaked at $38.1M in Q3 2023.
  • 636 funds tracked by Wall St. Rank held Organon & Co as of Q2 2026.

Based on Magnetar Financial's 13F filing for Q2 2026, filed 14 Aug 2026.