MARKET_TICKER: MRK

MERCK & CO INCInsider Trading & SEC Form 4 Analysis

Institutional analysis of internal capital flows based on SEC Form 4 filings.

Executive Sentiment
BEARISH
SOURCE: EDGAR_SYSTEMSTATUS: VERIFIED
Net_Flow

-$42.2M

Buys minus sales
Last_Filing

2026.05.02

Latest Form 4
Active_Insiders

17

Reporting entities
Top_Buyer

BAKER DOUGLAS M JR

$1.3M
Top_Seller

Zachary Jennifer

$6.8M

Automated_Intelligence_Report :: MRK

Algorithmic analysis of recent insider trading activity for MRK reveals a bearish posture among the C-suite and board members. Based on the latest SEC Form 4 filings, we have tracked capital events executed by 17 distinct corporate insiders. The aggregate nominal exposure during this reporting cycle reached $109.47M.

Market dynamics show a negative net capital flow of $42.25M when isolating open-market purchases versus open-market sales. Interestingly, a significant portion of the total volume is driven by the exercise of options or grants rather than open-market transactions, suggesting that insiders are currently prioritizing compensation-based equity accumulation or tax-related liquidation over voluntary portfolio rebalancing.

From a microstructural perspective, the landscape is fragmented. BAKER DOUGLAS M JR led the buying pressure, while Zachary Jennifer registered the largest single offload of shares. Continuous monitoring of these Tier-1 actors is essential, as their liquidity decisions often precede material corporate events or reflect an informed, asymmetric perspective on the future performance of MRK.

Volume_30D

$109.47M

USD NOMINAL VALUE
Active_Insiders

17

UNIQUE C-SUITE ENTITIES
Last_Entry

2026.05.02

ISO_8601 FORMAT
Loading chart...
Entity / TimelineMethodologyPositionNet Value
Smart Dalton E. III2026.05.02
ACQUISITION383$42,957.28
Smart Dalton E. III2026.05.02
ACQUISITION132$14,805.12
Maraldo David R.2026.05.02
ACQUISITION552$61,912.32
Maraldo David R.2026.05.02
ACQUISITION159$17,833.44
Smart Dalton E. III2026.04.30
ACQUISITION464$51,480.8
Smart Dalton E. III2026.04.30
ACQUISITION159$17,641.05
Larson Betty D2026.04.30
ACQUISITION11,350$1,259,282.5
Larson Betty D2026.04.30
ACQUISITION5,143$570,615.85
Guindo Chirfi2026.04.29
ACQUISITION1,967$216,429.01
Guindo Chirfi2026.04.29
ACQUISITION969$106,619.07
Chattopadhyay Sanat2026.04.29
ACQUISITION2,597$285,747.91
Chattopadhyay Sanat2026.04.29
ACQUISITION1,130$124,333.9
DeLuca Richard R.2026.04.29
ACQUISITION2,518$277,055.54
DeLuca Richard R.2026.04.29
ACQUISITION1,241$136,547.23
Williams David Michael2026.04.29
ACQUISITION1,377$151,511.31
Williams David Michael2026.04.29
ACQUISITION679$74,710.37
Smart Dalton E. III2026.04.29
ACQUISITION944$103,868.32
Smart Dalton E. III2026.04.29
ACQUISITION324$35,649.72
Li Dean Y2026.04.29
ACQUISITION4,722$519,561.66
Li Dean Y2026.04.29
ACQUISITION2,326$255,929.78
PAGE_ 1 _OF_ 5

Automated_Queries :: Frequently Asked Questions

>Who is currently buying MRK stock?

Based on the latest SEC Form 4 filings, BAKER DOUGLAS M JR (Director) has been actively acquiring shares. The total recent insider buying volume stands at $1.58M.

>Are MRK insiders selling their shares?

Yes, we have tracked $43.83M in recent insider liquidations. The most notable recent seller is Zachary Jennifer, who executed the largest single offload.

>What is the overall insider sentiment for MRK?

The short-term structural capital flow indicates a BEARISH sentiment, with a net flow of $42.25M generated by 17 active C-Suite entities.

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