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ADAR1 Capital Management’s Merck MRK Stock Holding History

ADAR1 Capital Management’s Portfolio MRK Stock Details MRK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$378K Sell
3,140
-6,500
-67% -$750K 0.02% 221
2025
Q4 		$1.01M Sell
9,640
-8,900
-48% -$835K 0.07% 130
2025
Q3 		$1.56M Buy
18,540
+11,500
+163% +$947K 0.15% 88
2025
Q2 		$557K Buy
+7,040
New +$560K 0.09% 112
2025
Q1 		– Sell
-2,440
Closed -$243K – 237
2024
Q4 		$243K Buy
2,440
+1,300
+114% +$134K 0.05% 150
2024
Q3 		$129K Sell
1,140
-74,610
-98% -$8.86M 0.02% 180
2024
Q2 		$9.38M Buy
75,750
+75,450
+25,150% +$9.72M 1.77% 12
2024
Q1 		$39.6K Sell
300
-53,700
-99% -$6.62M 0.01% 193
2023
Q4 		$5.89M Buy
+54,000
New +$5.61M 2.1% 11

Other funds holding MRK

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Charles Schwab
Charles Schwab San Francisco, California $654B AUM 26.35% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

ADAR1 Capital Management's MRK Position: Q1 2026 in Review

ADAR1 Capital Management reduced its Merck (MRK) stake by 67% in Q1 2026, selling an estimated $750K and leaving 3,140 shares worth $378K. The position accounts for 0.02% of the portfolio, ranked #221.

ADAR1 Capital Management first reported a position in MRK in Q4 2023 and has held it in 9 quarters since. The position peaked at $9.38M in Q2 2024. 3,778 funds tracked by Wall St. Rank hold MRK as of Q1 2026.

  • ADAR1 Capital Management held 3,140 shares of Merck worth $378K as of Q1 2026.
  • ADAR1 Capital Management sold 6,500 Merck shares in Q1 2026, an estimated $750K.
  • Merck made up 0.02% of ADAR1 Capital Management's portfolio in Q1 2026, its #221 holding.
  • ADAR1 Capital Management first reported a position in Merck in Q4 2023 and has held it in 9 quarters since.
  • ADAR1 Capital Management's Merck position peaked at $9.38M in Q2 2024.
  • 3,778 funds tracked by Wall St. Rank held Merck as of Q1 2026.

Based on ADAR1 Capital Management's 13F filing for Q1 2026, filed 18 May 2026.