Merck & Co., Inc.
MRK- Exchange
- NYSE
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0000310158
In the last 90 days, Merck & Co., Inc. insiders filed 0 open-market purchases and 7 sales; 3,854 institutions reported holding it in 13F filings for Q2 2026, worth $254.3B in total; 4 superinvestors hold it, including Harris Associates (Oakmark) and Fairfax Financial.
Members of Congress who traded MRK
Since 2020, newest trade first. Options and trades reported under an earlier ticker are included.
- Trades
- 125
- Filings
- 101
- Members
- 44
- Buys / sells
- 57 / 68
- Estimated volume
- $1.88M
- Sum of range midpoints
| Member | Trades | Buys / sells | Est. volume | Last traded | Last filed |
|---|---|---|---|---|---|
| Maria Elvira SalazarRepublican · House · FL | 2 | 2 / 0 | $65.0K | Aug 19, 2026 | Sep 9, 2026 |
| Alan ArmstrongRepublican · Senate · OK | 1 | 0 / 1 | $32.5K | Mar 27, 2026 | Jul 21, 2026 |
| Josh GottheimerDemocrat · House · NJ | 4 | 1 / 3 | $56.5K | Feb 4, 2026 | Mar 16, 2026 |
| Gilbert Ray Cisneros, Jr.Democrat · House · CA | 8 | 5 / 3 | $113.0K | Dec 19, 2025 | Jan 12, 2026 |
| Julie JohnsonDemocrat · House · TX | 5 | 2 / 3 | $40.0K | Dec 18, 2025 | Jan 15, 2026 |
| Val T. HoyleDemocrat · House · OR | 2 | 1 / 1 | $16.0K | Sep 23, 2025 | Oct 10, 2025 |
| Marjorie Taylor GreeneRepublican · House · GA | 3 | 3 / 0 | $24.0K | Aug 28, 2025 | Aug 29, 2025 |
| Lisa C. McClainRepublican · House · MI | 2 | 1 / 1 | $16.0K | Aug 4, 2025 | Sep 12, 2025 |
| Ritchie TorresDemocrat · House · NY | 2 | 1 / 1 | $16.0K | Jul 11, 2025 | Aug 20, 2025 |
| Scott FranklinRepublican · House · FL | 4 | 2 / 2 | $56.5K | Jun 16, 2025 | Jul 14, 2025 |
| Robert P. Bresnahan, Jr.Republican · House · PA | 3 | 1 / 2 | $97.5K | May 15, 2025 | May 31, 2025 |
| Bruce WestermanRepublican · House · AR | 2 | 1 / 1 | $16.0K | Apr 21, 2025 | May 12, 2025 |
| Jefferson ShreveRepublican · House · IN | 2 | 1 / 1 | $65.0K | Apr 17, 2025 | May 8, 2025 |
| Kelly MorrisonDemocrat · House · MN | 1 | 0 / 1 | $8.00K | Mar 20, 2025 | Apr 11, 2025 |
| Sheri BiggsRepublican · House · SC | 1 | 0 / 1 | $32.5K | Mar 19, 2025 | Oct 5, 2025 |
| Byron DonaldsRepublican · House · FL | 2 | 0 / 2 | $16.0K | Jan 16, 2025 | Feb 10, 2025 |
| Jared MoskowitzDemocrat · House · FL | 9 | 6 / 3 | $72.0K | Jan 15, 2025 | Feb 10, 2025 |
| Jonathan L. JacksonDemocrat · House · IL | 1 | 0 / 1 | $32.5K | Sep 24, 2024 | Oct 11, 2024 |
| John JamesRepublican · House · MI | 2 | 1 / 1 | $16.0K | Sep 4, 2024 | Sep 6, 2024 |
| Kathy E. ManningDemocrat · House · NC | 7 | 6 / 1 | $80.5K | Jul 2, 2024 | Aug 16, 2024 |
| Michael C. BurgessRepublican · House · TX | 2 | 0 / 2 | $16.0K | Apr 10, 2024 | May 2, 2024 |
| Greg StantonDemocrat · House · AZ | 2 | 1 / 1 | $16.0K | Oct 24, 2023 | Nov 9, 2023 |
| Tommy TubervilleRepublican · Senate · AL | 3 | 1 / 2 | $24.0K | Oct 16, 2023 | Nov 16, 2023 |
| Pete RickettsRepublican · Senate · NE | 1 | 0 / 1 | $75.0K | Sep 21, 2023 | Oct 20, 2023 |
| Lois FrankelDemocrat · House · FL | 11 | 6 / 5 | $88.0K | Sep 8, 2023 | Oct 10, 2023 |
| Daniel S. GoldmanDemocrat · House · NY | 5 | 2 / 3 | $64.5K | Jul 14, 2023 | Aug 13, 2023 |
| Zoe LofgrenDemocrat · House · CA | 3 | 1 / 2 | $24.0K | May 25, 2023 | Jun 6, 2023 |
| Rick LarsenDemocrat · House · WA | 1 | 1 / 0 | $8.00K | Jul 7, 2022 | May 26, 2023 |
| John H. RutherfordRepublican · House · FL | 1 | 0 / 1 | $8.00K | Mar 16, 2022 | Apr 19, 2022 |
| Robert J. WittmanRepublican · House · VA | 2 | 1 / 1 | $16.0K | Feb 28, 2022 | Mar 9, 2022 |
| Bob GibbsRepublican · House · OH | 1 | 1 / 0 | $8.00K | Nov 26, 2021 | Nov 28, 2021 |
| Katherine M. ClarkDemocrat · House · MA | 3 | 2 / 1 | $24.0K | Sep 16, 2021 | Oct 14, 2021 |
| Carol D. MillerRepublican · House · WV | 1 | 0 / 1 | $32.5K | Jul 28, 2021 | Sep 2, 2022 |
| John R. CurtisRepublican · House · UT | 2 | 1 / 1 | $16.0K | Jul 19, 2021 | Aug 6, 2021 |
| Sara JacobsDemocrat · House · CA | 1 | 0 / 1 | $75.0K | Apr 9, 2021 | May 28, 2021 |
| William R. KeatingDemocrat · House · MA | 1 | 1 / 0 | $8.00K | Mar 17, 2021 | Apr 27, 2021 |
| Rick W. AllenRepublican · House · GA | 3 | 1 / 2 | $73.0K | Mar 10, 2021 | Aug 10, 2023 |
| Peter MeijerRepublican · House · MI | 3 | 1 / 2 | $24.0K | Jan 28, 2021 | Feb 23, 2021 |
| Tom MalinowskiDemocrat · House · NJ | 2 | 1 / 1 | $65.0K | Nov 4, 2020 | Aug 26, 2021 |
| David PerdueRepublican · Senate · GA | 6 | 0 / 6 | $188.5K | Apr 16, 2020 | May 2, 2021 |
| Kelly LoefflerRepublican · Senate · GA | 2 | 1 / 1 | $40.5K | Apr 7, 2020 | May 1, 2020 |
| Mikie SherrillDemocrat · House · NJ | 2 | 0 / 2 | $8.77K | Feb 20, 2020 | Apr 5, 2020 |
| Mike GallagherRepublican · House · WI | 1 | 0 / 1 | $8.00K | Jan 13, 2020 | Feb 8, 2020 |
| Thomas R. SuozziDemocrat · House · NY | 3 | 1 / 2 | $97.5K | Nov 18, 2019 | Dec 19, 2022 |
Trades
Every reported trade in Merck & Co., Inc., newest filings first.
| Member | Asset | Type | Owner | Traded | Filed | Delay | Amount | Source |
|---|---|---|---|---|---|---|---|---|
| Mike GallagherRepublican · House · WI | MRKMerck & Company, Inc. Common Stock | Sell | Spouse | Jan 13, 2020 | Feb 8, 2020 | 26 days | $1K-$15K | Filing |
| Mikie SherrillDemocrat · House · NJ | MRKMerck & Company, Inc. Common Stock | Sell | Self | Feb 6, 2020 | Mar 23, 2020 | 46 daysLate | $770.32 | Filing |
| Lois FrankelDemocrat · House · FL | MRKMerck & Company, Inc. Common Stock | Buy | Self | Feb 20, 2020 | Mar 23, 2020 | 32 days | $1K-$15K | Filing |
| Lois FrankelDemocrat · House · FL | MRKMerck & Company, Inc. Common Stock | Buy | Self | Feb 19, 2020 | Mar 23, 2020 | 33 days | $1K-$15K | Filing |
| David PerdueRepublican · Senate · GA | MRKMerck & Co., Inc. | Sell (partial) | Joint | Mar 31, 2020 | Apr 5, 2020 | 5 days | $15K-$50K | Filing |
| Mikie SherrillDemocrat · House · NJ | MRKMerck & Company, Inc. Common Stock | Sell | Self | Feb 20, 2020 | Apr 5, 2020 | 45 days | $1K-$15K | Filing |
| John R. CurtisRepublican · House · UT | MRKMerck & Company, Inc. Common Stock | Buy | Self | Mar 27, 2020 | Apr 9, 2020 | 13 days | $1K-$15K | Filing |
| Zoe LofgrenDemocrat · House · CA | MRKMerck & Company, Inc. Common Stock | Sell | Spouse | Mar 23, 2020 | Apr 11, 2020 | 19 days | $1K-$15K | Filing |
| Robert J. WittmanRepublican · House · VA | MRKMerck & Company, Inc. Common Stock | Buy | Self | Mar 30, 2020 | Apr 13, 2020 | 14 days | $1K-$15K | Filing |
| Lois FrankelDemocrat · House · FL | MRKMerck & Company, Inc. Common Stock | Buy | Self | Apr 15, 2020 | Apr 27, 2020 | 12 days | $1K-$15K | Filing |
| Kelly LoefflerRepublican · Senate · GA | MRKOption · Merck & Co., Inc. | Buy | Spouse | Apr 7, 2020 | May 1, 2020 | 24 days | $15K-$50K | Filing |
| Kelly LoefflerRepublican · Senate · GA | MRKOption · Merck & Co., Inc. | Sell (full) | Spouse | Feb 5, 2020 | May 1, 2020Amended | 36 days | $1K-$15K | Filing |
| Lois FrankelDemocrat · House · FL | MRKMerck & Company, Inc. Common Stock | Buy | Self | Oct 7, 2020 | Oct 22, 2020 | 15 days | $1K-$15K | Filing |
| Lois FrankelDemocrat · House · FL | MRKMerck & Company, Inc. Common Stock | Buy | Self | Sep 23, 2020 | Oct 22, 2020 | 29 days | $1K-$15K | Filing |
| Peter MeijerRepublican · House · MI | MRKMerck & Company, Inc. Common Stock | Sell | Self | Jan 28, 2021 | Feb 23, 2021 | 26 days | $1K-$15K | Filing |
| Peter MeijerRepublican · House · MI | MRKMerck & Company, Inc. Common Stock | Sell | Self | Jan 28, 2021 | Feb 23, 2021 | 26 days | $1K-$15K | Filing |
| Peter MeijerRepublican · House · MI | MRKMerck & Company, Inc. Common Stock | Buy | Self | Jan 13, 2021 | Feb 23, 2021 | 41 days | $1K-$15K | Filing |
| William R. KeatingDemocrat · House · MA | MRKMerck & Company, Inc. Common Stock | Buy | Self | Mar 17, 2021 | Apr 27, 2021 | 41 days | $1K-$15K | Filing |
| David PerdueRepublican · Senate · GA | MRKMerck & Co., Inc. | Sell (full) | Joint | Apr 16, 2020 | May 2, 2021Amended | 22 days | $1K-$15K | Filing |
| David PerdueRepublican · Senate · GA | MRKMerck & Co., Inc. | Sell (full) | Joint | Apr 14, 2020 | May 2, 2021Amended | 24 days | $15K-$50K | Filing |
| David PerdueRepublican · Senate · GA | MRKMerck & Co., Inc. | Sell (partial) | Joint | Apr 3, 2020 | May 2, 2021Amended | 35 days | $15K-$50K | Filing |
| David PerdueRepublican · Senate · GA | MRKMerck & Co., Inc. | Sell (partial) | Joint | Apr 6, 2020 | May 2, 2021Amended | 32 days | $1K-$15K | Filing |
| David PerdueRepublican · Senate · GA | MRKMerck & Co., Inc. | Sell (partial) | Joint | Apr 14, 2020 | May 2, 2021Amended | 24 days | $50K-$100K | Filing |
| Sara JacobsDemocrat · House · CA | MRKMerck & Company, Inc. Common Stock | Sell | Self | Apr 9, 2021 | May 28, 2021 | 49 daysLate | $50K-$100K | Filing |
| Tom MalinowskiDemocrat · House · NJ | MRKMerck & Company, Inc. Common Stock | Sell | Self | Nov 4, 2020 | Jul 9, 2021Amended | 121 daysLate | $15K-$50K | Filing |
| Tommy TubervilleRepublican · Senate · AL | MRKMerck & Co., Inc. | Sell (full) | Joint | Mar 29, 2021 | Jul 23, 2021 | 116 daysLate | $1K-$15K | Filing |
| John R. CurtisRepublican · House · UT | MRKMerck & Company, Inc. Common Stock | Sell (partial) | Joint | Jul 19, 2021 | Aug 6, 2021 | 18 days | $1K-$15K | Filing |
| Katherine M. ClarkDemocrat · House · MA | MRKMerck & Company, Inc. Common Stock | Buy | Spouse | Jul 27, 2021 | Aug 15, 2021 | 19 days | $1K-$15K | Filing |
| Katherine M. ClarkDemocrat · House · MA | MRKMerck & Company, Inc. Common Stock | Buy | Spouse | Jul 27, 2021 | Aug 15, 2021 | 19 days | $1K-$15K | Filing |
| Tom MalinowskiDemocrat · House · NJ | MRKMerck & Company, Inc. Common Stock | Buy | Self | Aug 26, 2020 | Aug 26, 2021Amended | 317 daysLate | $15K-$50K | Filing |
| Thomas R. SuozziDemocrat · House · NY | MRKMerck & Company, Inc. Common Stock | Buy | Self | Aug 17, 2017 | Sep 23, 2021 | 1,498 daysLate | $15K-$50K | Filing |
| Thomas R. SuozziDemocrat · House · NY | MRKMerck & Company, Inc. Common Stock | Sell | Self | Nov 18, 2019 | Sep 23, 2021 | 675 daysLate | $15K-$50K | Filing |
| Zoe LofgrenDemocrat · House · CA | MRKMerck & Company, Inc. Common Stock | Buy | Spouse | Sep 30, 2021 | Oct 7, 2021 | 7 days | $1K-$15K | Filing |
| Katherine M. ClarkDemocrat · House · MA | MRKMerck & Company, Inc. Common Stock | Sell | Spouse | Sep 16, 2021 | Oct 14, 2021 | 28 days | $1K-$15K | Filing |
| Bob GibbsRepublican · House · OH | MRKMerck & Company, Inc. Common Stock | Buy | Self | Nov 26, 2021 | Nov 28, 2021 | 2 days | $1K-$15K | Filing |
| Lois FrankelDemocrat · House · FL | MRKMerck & Company, Inc. Common Stock | Buy | Self | Dec 3, 2021 | Jan 16, 2022 | 44 days | $1K-$15K | Filing |
| Robert J. WittmanRepublican · House · VA | MRKMerck & Company, Inc. Common Stock | Sell | Self | Feb 28, 2022 | Mar 9, 2022 | 9 days | $1K-$15K | Filing |
| Tommy TubervilleRepublican · Senate · AL | MRKMerck & Company, Inc. Common Stock (new) | Buy | Joint | Mar 30, 2022 | Apr 8, 2022 | 9 days | $1K-$15K | Filing |
| John H. RutherfordRepublican · House · FL | MRKMerck & Company, Inc. Common Stock | Sell | Self | Mar 16, 2022 | Apr 19, 2022 | 34 days | $1K-$15K | Filing |
| Lois FrankelDemocrat · House · FL | MRKMerck & Company, Inc. Common Stock | Sell (partial) | Self | Jun 1, 2022 | Jun 16, 2022 | 15 days | $1K-$15K | Filing |
| Kathy E. ManningDemocrat · House · NC | MRKMerck & Company, Inc. Common Stock | Buy | Spouse | Jul 15, 2022 | Aug 10, 2022 | 26 days | $1K-$15K | Filing |
| Carol D. MillerRepublican · House · WV | MRKMerck & Company, Inc. Common Stock | Sell (partial) | Spouse | Jul 28, 2021 | Sep 2, 2022 | 401 daysLate | $15K-$50K | Filing |
| Kathy E. ManningDemocrat · House · NC | MRKMerck & Company, Inc. Common Stock | Sell (partial) | Spouse | Aug 5, 2022 | Sep 14, 2022 | 40 days | $1K-$15K | Filing |
| Kathy E. ManningDemocrat · House · NC | MRKMerck & Company, Inc. Common Stock | Buy | Spouse | Sep 12, 2022 | Oct 11, 2022 | 29 days | $1K-$15K | Filing |
| Thomas R. SuozziDemocrat · House · NY | MRKMerck & Company, Inc. Common Stock | Sell (partial) | Self | Oct 17, 2019 | Dec 19, 2022 | 1,159 daysLate | $15K-$50K | Filing |
| Josh GottheimerDemocrat · House · NJ | MRKMerck & Company, Inc. Common Stock | Sell (partial) | Joint | Jan 11, 2023 | Feb 17, 2023 | 37 days | $1K-$15K | Filing |
| Daniel S. GoldmanDemocrat · House · NY | MRKMerck & Company, Inc. Common Stock | Buy | Self | Jan 31, 2023 | Feb 24, 2023 | 24 days | $1K-$15K | Filing |
| Jared MoskowitzDemocrat · House · FL | MRKMerck & Company, Inc. Common Stock | Buy | Self | Feb 24, 2023 | Mar 10, 2023 | 14 days | $1K-$15K | Filing |
| Daniel S. GoldmanDemocrat · House · NY | MRKMerck & Company, Inc. Common Stock | Sell (partial) | Self | Mar 6, 2023 | Apr 17, 2023 | 42 days | $15K-$50K | Filing |
| Daniel S. GoldmanDemocrat · House · NY | MRKMerck & Company, Inc. Common Stock | Buy | Self | Apr 10, 2023 | May 19, 2023 | 39 days | $1K-$15K | Filing |
Source: U.S. House Clerk and Senate Office of Public Records (eFD). Amounts are the ranges filers report.