Merck ($MRK) Insider Trading & Smart Money Activity

Merck & Co., Inc. · Drug Manufacturers - General · Latest filing Oct 16, 2026

Merck & Co., Inc. ($MRK) has 3 insider trades, 3 congress trades, 43 13F position changes and 6 analyst ratings on file. Insiders filed 3 Form 4 transactions in the last 12 months, none of them open-market purchases or sales.

Insider buyers (12 mo)
0
Insider sellers (12 mo)
0
Net insider $ (12 mo)
$0
Congress trades (12 mo)
3
13F moves on file
43
Analyst ratings on file
6

MRK insider buying and selling by quarter

QuarterInsider buysInsider salesCongress buys / sales13F added / cut
Q1 2026 0 0 0 / 1 1 / 0
Q2 2026 0 0 0 / 0 10 / 14
Q3 2026 0 0 1 / 1 0 / 0
Q4 2026 0 0 0 / 0 5 / 13

Insider buys and sales count open-market trades only (Form 4 codes P and S). Grants, option exercises and tax withholding are left out.

All MRK insider, congress, 13F and analyst activity

DateSourceWhoActionSharesValue / amount ΔOwn1W1M6MFilingStory
13F SteelPeak Wealth Reduced -87.67K sh $12.07M —
13F Smead Capital Management Reduced -28.55K sh $335.07M —
13F DiNuzzo Private Wealth Added +200 sh $164.20K —
13F Cardinal Capital Management Reduced -2.35K sh $29.66M —
13F Cantor Fitzgerald Investment Advisors L.P. Reduced -73.10K sh $5.51M —
13F Birch Hill Investment Advisors Reduced -8.04K sh $11.61M —
13F Banque Pictet & Cie Reduced -95.03K sh $59.34M —
13F V-Square Quantitative Management Added +2.66K sh $7.11M —
13F Hbw Advisory Services Reduced -8.58K sh $2.68M Read
13F Guyasuta Investment Advisors Reduced -4.45K sh $8.90M —
13F Goldstein Advisors Added +1.82K sh $909.35K Read
13F Fort Washington Investment Advisors Reduced -247.58K sh $60.94M Read
13F Fjarde Ap-Fonden /Fourth Swedish National Pension Fund Reduced -161.39K sh $158.53M —
13F Community Trust & Investment Reduced -3.75K sh $4.43M —
13F Auto-Owners Insurance Added +121 sh $1.08M —
13F Moody Lynn Lieberson & Walker Added +18.52K sh $18.75M —
13F Godsey & Gibb Reduced -7.85K sh $31.54M —
13F Fulton Bank, N.A. Reduced -9.63K sh $10.23M —
Analyst Morgan Stanley Reiterates to Overweight PT $177 +3.2% —
Analyst JP Morgan Reiterates to Overweight PT $165 +4.2% —
Analyst Scotiabank Reiterates to Sector Outperform PT $180 -4.9% —
Congress Maria Elvira Salazar Sale $1,001 - $15,000 -2.8% Read
Congress Maria Elvira Salazar Purchase $15,001 - $50,000 +0.6%-2.9% —
Analyst Scotiabank Reiterates to buy PT $155 +0.3%+1.0% Read
Insider Christine Seidman Buy (Grant or award) 63 sh $8.10K +0.3%+1.0% Read
Insider Karsanbhai Surendralal Lanca Buy (Grant or award) 127 sh $16.32K +0.3%+1.0% Read
Insider Coe Mary Ellen Buy (Grant or award) 234 sh $30.07K +0.3%+1.0% Read
Analyst B of A Securities Reiterates to buy PT $141 +0.3%+1.0% Read
Analyst CICC Reiterates to buy PT $138 +4.0%+8.7% Read
13F Harris Associates L P Reduced -1.72M sh $1.49B +9.9%+3.9% —
13F Harris Associates L P Reduced -1.72M sh $1.59B +9.9%+3.9% —
13F Farallon Capital Management New +361K sh $46.45M +9.9%+3.9% —
13F Brandes Investment Partners Reduced -164.96K sh $295.88M +9.9%+3.9% Read
13F Aristotle Capital Management Reduced -386.46K sh $832.57M +9.9%+3.9% —
13F Aristotle Capital Management Reduced -386.46K sh $885.93M +9.9%+3.9% Read
13F Caisse de Depot Et Placement Du Quebec Reduced -332.08K sh $458.81M +2.2%+2.0% —
Congress Alan Armstrong Sale $15,001 - $50,000 +1.0%-7.9%+26.0% —

Showing 37 of 55 filings (the latest 13F moves are capped at 25; see the institutions below).

1W / 1M / 6M = how MRK moved from the trade or filing date.

Insider trading in MRK: who is buying and selling

InsiderRoleTradesOpen-market netShares heldLast trade
Christine Seidman 1 — Jun 30, 2026
Karsanbhai Surendralal Lanca 1 — Jun 30, 2026
Coe Mary Ellen 1 — Jun 30, 2026

Members of Congress trading MRK

Institutions moving MRK (13F)

Analyst ratings on MRK

DateFirmActionRatingPrice target1W1M6MStory
Morgan Stanley Reiterates Overweight $179 → $177 +3.2% —
JP Morgan Reiterates Overweight $150 → $165 +4.2% —
Scotiabank Reiterates Sector Outperform $155 → $180 -4.9% —
Scotiabank Reiterates buy $155 +0.3%+1.0% Read
B of A Securities Reiterates buy $141 +0.3%+1.0% Read
CICC Reiterates buy $138 +4.0%+8.7% Read

Frequently asked questions

What is the latest insider trade in MRK?

Christine Seidman filed a buy (grant or award) of 63 sh worth $8.10K on Jun 30, 2026.

Which members of Congress traded MRK?

3 disclosed trades by Maria Elvira Salazar and Alan Armstrong. The latest was on Sep 24, 2026.

Which institutions changed their MRK positions?

Recent 13F filers moving the stock include Fort Washington Investment Advisors, Harris Associates L P, Aristotle Capital Management, Caisse de Depot Et Placement Du Quebec and Korea Investment.

Other drug manufacturers - general stocks

Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.

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