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MRK

Congressional & insider trading activity

38
Total Trades
10
Traders
20 / 18
Buys / Sells
Accumulating
Congress Sentiment
Buy Volume: $675,000 Sell Volume: $1,070,000

Recent Trades

Date Trader Type Amount Filed
2025-12-19 Gilbert Cisneros D BUY $1,001-15,000 2026-01-12
2025-12-18 Julie Johnson D SELL $1,001-15,000 2026-01-15
2025-11-18 Gilbert Cisneros D BUY $1,001-15,000 2025-12-15
2020-04-16 David A Perdue , Jr R SELL $1,001-15,000 -
2020-04-14 David A Perdue , Jr R SELL $15,001-50,000 -
2020-04-07 Kelly Loeffler R BUY $15,001-50,000 -
2020-04-06 David A Perdue , Jr R SELL $1,001-15,000 -
2020-04-03 David A Perdue , Jr R SELL $15,001-50,000 -
2020-03-31 David A Perdue , Jr R SELL $15,001-50,000 -
2020-02-05 Kelly Loeffler R SELL $1,001-15,000 -
2019-04-10 David A Perdue , Jr R SELL $15,001-50,000 -
2019-02-19 David A Perdue , Jr R SELL $15,001-50,000 -
2019-01-11 James M Inhofe R SELL $100,001-250,000 -
2018-10-29 David A Perdue , Jr R SELL $1,001-15,000 -
2018-10-03 David A Perdue , Jr R SELL $15,001-50,000 -
2018-06-04 Susan M Collins R BUY $1,001-15,000 -
2018-04-24 David A Perdue , Jr R BUY $1,001-15,000 -
2018-01-16 David A Perdue , Jr R BUY $100,001-250,000 -
2018-01-04 Shelley Moore Capito R SELL $1,001-15,000 -
2017-12-13 David A Perdue , Jr R SELL $100,001-250,000 -

Showing 20 of 38 trades

Top Institutional Holders SEC 13F Filings

Quarterly institutional ownership from 13F-HR filings

Institution Shares Value Report Date
BlackRock Inc 201,836,434 $22,004,208,018 2023-12-31
Vanguard Group Inc 252,136,910 $21,161,850,856 2025-09-30
State Street Corp 118,180,178 $10,013,630,412 2025-09-30
Wellington Management Group 75,279,104 $6,318,175,198 2025-09-30
Morgan Stanley 43,114,452 $3,869,953,495 2025-03-31
JPMorgan Chase & Co 28,508,222 $2,558,898,124 2025-03-31
FMR LLC 31,566,125 $2,498,774,545 2025-06-30
Invesco Ltd 15,298,134 $1,373,160,467 2025-03-31
Goldman Sachs Group Inc 14,479,232 $1,299,655,845 2025-03-31
AQR Capital Management LLC 10,658,099 $851,368,999 2025-09-30

Major Shareholders SEC 13D/13G Filings

Beneficial owners holding 5%+ of outstanding shares

Owner Shares Ownership Filing Type Filing Date
The Vanguard Group SCHEDULE 13G/A
253,257,639 10.0% SCHEDULE 13G/A 2025-03-06