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Weiss Asset Management’s Organon & Co OGN Stock Holding History

Weiss Asset Management’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
2026
Q1 		– Sell
-68,904
Closed -$494K – 722
2025
Q4 		$494K Sell
68,904
-33,296
-33% -$263K 0.01% 477
2025
Q3 		$1.09M Buy
+102,200
New +$1M 0.01% 344
2025
Q2 		– Sell
-33,938
Closed -$505K – 499
2025
Q1 		$505K Buy
+33,938
New +$522K 0.01% 230
2024
Q4 		– Sell
-1,723,243
Closed -$33M – 800
2024
Q3 		$33M Buy
+1,723,243
New +$35.7M 0.72% 28

Other funds holding OGN

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
LSV Asset Management
LSV Asset Management Chicago, Illinois $46.4B AUM 27.74% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
KBG
Kahn Brothers Group New York $564M AUM 25.3% 1-Year Est. Return
Canada Pension Plan Investment Board
Canada Pension Plan Investment Board Toronto Ontario, Ontario, Canada $155B AUM 29.93% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
PMG
Private Management Group Irvine, California $3.47B AUM 13.39% 1-Year Est. Return

Weiss Asset Management's OGN Position: Q1 2026 in Review

Weiss Asset Management sold out of Organon & Co (OGN) in Q1 2026, closing a stake of 68,904 shares — an estimated $494K sold.

Weiss Asset Management first reported a position in OGN in Q3 2024 and held it in 4 quarters. The position peaked at $33M in Q3 2024. 603 funds tracked by Wall St. Rank hold OGN as of Q1 2026.

  • Weiss Asset Management reported no remaining Organon & Co position as of Q1 2026 after selling out during the quarter.
  • Weiss Asset Management sold 68,904 Organon & Co shares in Q1 2026, an estimated $494K.
  • Weiss Asset Management first reported a position in Organon & Co in Q3 2024 and held it in 4 quarters.
  • Weiss Asset Management's Organon & Co position peaked at $33M in Q3 2024.
  • 603 funds tracked by Wall St. Rank held Organon & Co as of Q1 2026.

Based on Weiss Asset Management's 13F filing for Q1 2026, filed 15 May 2026.