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MRK Insider Trading & Institutional Ownership

View the latest insider transactions and institutional holdings for MRK. Analyze how executives and major investors are positioning.

Insider & Institutional Ownership for MRK

MRK Insider Trading Activity

Insider Name Relationship Trade Date Transaction Price/Share Shares Traded Total Value ($) Total Holdings SEC Form 4
Williams David Michael EVP,Chief Info&Digital Officer Aug 04 '25 Option Exercise 79.29 17,119 1,357,366 41,445 Aug 05 08:46 AM
Guindo Chirfi Chief Marketing Officer Aug 04 '25 Option Exercise 79.29 36,903 2,926,039 107,409 Aug 05 08:43 AM

MRK – Institutional Ownership

Report Date Institution % Held Shares Held Value ($) % Change QoQ
2025-06-30 FMR, LLC 1.26% 31,566,125 2,663,865,269 -0.76%
2025-06-30 Morgan Stanley 1.77% 44,200,694 3,730,096,539 2.52%
2025-06-30 Charles Schwab Investment Management, Inc. 2.16% 53,865,466 4,545,706,642 9.42%
2025-06-30 NORGES BANK 1.45% 36,111,289 3,047,431,656 3.23%
2025-06-30 Blackrock Inc. 8.74% 218,340,832 18,425,782,679 -3.13%
2025-06-30 State Street Corporation 4.74% 118,493,864 9,999,697,110 -1.69%
2025-06-30 JPMORGAN CHASE & CO 1.27% 31,821,772 2,685,439,319 11.62%
2025-06-30 Geode Capital Management, LLC 2.36% 58,952,681 4,975,016,713 -1.18%
2025-06-30 Vanguard Group Inc 10.13% 252,914,426 21,343,448,255 0.16%
2025-06-30 Wellington Management Group, LLP 3.08% 76,856,492 6,485,919,312 -5.89%