Loading the brief…
Stock brief · the live tape
MRKMerck & Company, Inc.
Health Care
$148.35
▲ $17.99 (+13.8%) · 30dclose Friday, August 28, 2026
Disclosed flow is mixed.
16 members · 41 disclosed trades · 118 insider filings
The Hill
▲ 18▼ 23
18 buys · 23 sellsThe Boardroom
▲ 63▼ 55
63 buys · 55 sells · 118 filingsFeeding Time13F lens lands with fund ingestion
What is behind it
Recent Signal Scores, decayed59
Events counted, 90d49
Net congressional flowselling
The tape
Price with a twin dot per disclosed trade: filled at the trade, hollow at the filing. The dashed gap is what the market did in between, not anyone’s return.
trade (congress)filingtrade (insider)call legput leg
The cost of chasing
Each rail runs from their trade to their filing. The hatched part is the move a copier missed to the disclosure lag; the solid part is what copying at the filing kept.
Armstrong+24.0+17.5
Gottheimer+25.4+28.5
Johnson+47.3+33.7
Cisneros+46.8+35.9
Cisneros+53.8+48.0
Johnson+59.6+49.8
Hoyle+85.5+72.5
Biggs+57.8+67.1
Cisneros+83.6+79.1
McClain+85.8+79.1
Median copy kept +75.2% from the filing vs +62.3% from the trade date; the lag took -12.9 pts. The S&P returned +27.2% over the same windows. Numbers describe the window shown; they are not a forecast.
Who is behind it
Congress members with a disclosed position, biggest first. Click through to their dossier.
Gilbert Ray Cisneros, Jr.House · Armed Services · Small BusinessFiled this one in 24dmixed$113KRobert P. Bresnahan, Jr.House · Transportation & Infrastructure · AgricultureFiled this one in 16dmixed$98KJefferson ShreveHouse · AppropriationsFiled this one in 21dmixed$65KJosh GottheimerHouse · Intelligence · Financial ServicesFiled this one in 40dmixed$41KJulie JohnsonHouse · Joint Committee of Congress on the Library · Homeland SecurityFiled this one in 28dmixed$40K
Committee overlap is a fact, not an accusation. An option leg behind a share buy reads very differently from a plain purchase, so it is called out but never scored as intent.
The boardroom
Scheduled 10b5-1 sales are usually noise, set on autopilot months ago. The unscheduled ones are the tell.
Guindo ChirfiEVP, Access, Policy & CommsUnscheduled
Zachary JenniferEVP, General CounselUnscheduled
Zachary JenniferEVP, General CounselUnscheduled
Zachary JenniferEVP, General CounselUnscheduled
Zachary JenniferEVP, General CounselUnscheduled
Zachary JenniferEVP, General CounselUnscheduled
DeLuca Richard R.EVP&Pres, Merck Animal HeallthUnscheduled
DeLuca Richard R.EVP&Pres, Merck Animal HeallthUnscheduled
DeLuca Richard R.EVP&Pres, Merck Animal HeallthUnscheduled
DeLuca Richard R.EVP&Pres, Merck Animal HeallthUnscheduled
DeLuca Richard R.EVP&Pres, Merck Animal HeallthUnscheduled
DeLuca Richard R.EVP&Pres, Merck Animal HeallthUnscheduled
DeLuca Richard R.EVP&Pres, Merck Animal HeallthUnscheduled
DeLuca Richard R.EVP&Pres, Merck Animal HeallthUnscheduled
Guindo ChirfiEVP, Access, Policy & CommsUnscheduled
Williams David MichaelEVP,Chief Info&Digital OfficerUnscheduled
Maraldo David R.EVP & Pres. MMDUnscheduled
Williams David MichaelEVP,Chief Info&Digital OfficerUnscheduled
Maraldo David R.EVP & Pres. MMDUnscheduled
Williams David MichaelEVP,Chief Info&Digital OfficerUnscheduled
Maraldo David R.EVP & Pres. MMDUnscheduled
Williams David MichaelEVP,Chief Info&Digital OfficerUnscheduled
Williams David MichaelEVP,Chief Info&Digital OfficerUnscheduled
Williams David MichaelEVP,Chief Info&Digital OfficerUnscheduled
Williams David MichaelEVP,Chief Info&Digital OfficerUnscheduled
Maraldo David R.EVP & Pres. MMDUnscheduled
Maraldo David R.EVP & Pres. MMDUnscheduled
Maraldo David R.EVP & Pres. MMDUnscheduled
Maraldo David R.EVP & Pres. MMDUnscheduled
Maraldo David R.EVP & Pres. MMDUnscheduled
Williams David MichaelEVP,Chief Info&Digital OfficerUnscheduled
Williams David MichaelEVP,Chief Info&Digital OfficerUnscheduled
Maraldo David R.EVP & Pres. MMDUnscheduled
Coe Mary EllenDirectorUnscheduled
Seidman Christine EDirectorUnscheduled
Karsanbhai Surendralal LancaDirectorUnscheduled
BAKER DOUGLAS M JRDirectorUnscheduled
THULIN INGE GDirectorUnscheduled
Craig Pamela J.DirectorUnscheduled
GLOCER THOMAS HDirectorUnscheduled
The forward book
Every disclosed option leg on this ticker: what was filed, and where the strike sits versus today.
No disclosed option legs on MRK yet. They plot here the day they file.
A call and a put are shown as filed. We do not infer whether a leg is a hedge or a leveraged bet, because the filing does not say. Read the strike and expiry, not an implied intent.
The fund book
Tracked 13F holders and how their position moved, quarter over quarter.
13F fund positions on MRK light up when fund ingestion lands. Quarter-end marks, up to 45 days lagged, never live holdings.
Cross-check
When different sources file on the same name inside a window. Overlap like this is rare.
- Alan ArmstrongSenate · Health, Education, Labor & Pensions · Indian Affairs▼
- Guindo ChirfiEVP, Access, Policy & Comms▼
- Zachary JenniferEVP, General Counsel▼
- DeLuca Richard R.EVP&Pres, Merck Animal Heallth▼
- Williams David MichaelEVP,Chief Info&Digital Officer▲
Last 90 days · 5 filers converging
Sources file on different clocks; an overlap like this is rare.
⚠️ Public information, sourced from STOCK Act, Form 4 and 13F filings. Ranges use midpoints. Price paths between a trade and its filing are market moves, not anyone’s return. Not financial advice.