MARKET_TICKER: MRK

MRKInsider Trading & SEC Form 4 Analysis

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

Executive Sentiment

BEARISH

SOURCE: EDGAR_SYSTEMSTATUS: VERIFIED

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 $185.34M.

Market dynamics show a negative net capital flow of $76.59M 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 Davis Robert M 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

$185.34M

USD NOMINAL VALUE

Active_Insiders

UNIQUE C-SUITE ENTITIES

Last_Entry

2026.02.12

ISO_8601 FORMAT

INITIALIZING_CHART_ENGINE...

Entity / Timeline	Methodology	Position	Net Value
Guindo Chirfi2026.02.12	DISPOSAL	10,000	$1,214,562
Li Dean Y2026.02.10	DISPOSAL	10,235	$1,202,843.81
Guindo Chirfi2026.02.09	DISPOSAL	10,000	$1,184,101
Zachary Jennifer2026.02.09	ACQUISITION	25,946	$3,091,522.98
Zachary Jennifer2026.02.09	DISPOSAL	25,946	$3,091,522.98
Zachary Jennifer2026.02.09	ACQUISITION	56,792	$6,766,891.74
Zachary Jennifer2026.02.09	DISPOSAL	56,792	$6,766,891.74
Zachary Jennifer2026.02.09	ACQUISITION	38,835	$4,627,275.69
Zachary Jennifer2026.02.09	DISPOSAL	38,835	$4,627,275.69
Williams David Michael2026.02.06	ACQUISITION	5,000	$388,100
Williams David Michael2026.02.06	DISPOSAL	5,000	$609,525
Oosthuizen Johannes Jacobus2026.02.06	DISPOSAL	15,000	$1,827,991.5
DeLuca Richard R.2026.02.06	DISPOSAL	37,685	$4,557,024.71
Guindo Chirfi2026.02.05	DISPOSAL	20,000	$2,437,676
Smart Dalton E. III2026.02.04	ACQUISITION	4,000	$248,280
Smart Dalton E. III2026.02.04	DISPOSAL	4,000	$478,700
Smart Dalton E. III2026.02.04	DISPOSAL	2,400	$287,220
Litchfield Caroline2026.02.04	ACQUISITION	41,997	$2,228,360.82
Litchfield Caroline2026.02.04	DISPOSAL	41,997	$5,023,311.57
Li Dean Y2026.02.04	ACQUISITION	15,087	$845,475.48
Li Dean Y2026.02.04	DISPOSAL	15,087	$1,791,824.15
Davis Robert M2026.02.04	DISPOSAL	14,972	$1,757,407.37
Davis Robert M2026.02.04	DISPOSAL	32,462	$3,841,919.9
Zachary Jennifer2026.01.26	ACQUISITION	11,583	$1,244,014.2
Williams David Michael2026.01.26	ACQUISITION	6,112	$656,428.8
Smart Dalton E. III2026.01.26	ACQUISITION	1,066	$114,488.4
Romanelli Joseph2026.01.26	ACQUISITION	5,703	$612,502.2
Oosthuizen Johannes Jacobus2026.01.26	ACQUISITION	5,026	$539,792.4
Litchfield Caroline2026.01.26	ACQUISITION	15,852	$1,702,504.8
Li Dean Y2026.01.26	ACQUISITION	20,469	$2,198,370.6
Guindo Chirfi2026.01.26	ACQUISITION	9,865	$1,059,501
DeLuca Richard R.2026.01.26	ACQUISITION	12,264	$1,317,153.6
Davis Robert M2026.01.26	ACQUISITION	47,434	$5,094,411.6
Chattopadhyay Sanat2026.01.26	ACQUISITION	13,880	$1,490,712
Downing Cristal N2025.11.10	DISPOSAL	7,085	$616,395
Williams David Michael2025.11.03	DISPOSAL	8,614	$720,039.95
Williams David Michael2025.08.04	ACQUISITION	17,119	$1,357,365.51
Williams David Michael2025.08.04	ACQUISITION	8,432	$668,573.28
Guindo Chirfi2025.08.04	ACQUISITION	36,903	$2,926,038.87
Guindo Chirfi2025.08.04	ACQUISITION	18,175	$1,441,095.75
Smart Dalton E. III2025.05.03	ACQUISITION	518	$43,087.24
Smart Dalton E. III2025.05.03	ACQUISITION	256	$21,294.08
Smart Dalton E. III2025.05.03	ACQUISITION	1,532	$127,431.76
Smart Dalton E. III2025.05.03	ACQUISITION	588	$48,909.84
Smart Dalton E. III2025.05.02	ACQUISITION	381	$31,722.06
Smart Dalton E. III2025.05.02	ACQUISITION	131	$10,907.06
Romanelli Joseph2025.05.02	ACQUISITION	2,262	$188,334.12
Romanelli Joseph2025.05.02	ACQUISITION	1,115	$92,834.9
Smart Dalton E. III2025.04.30	ACQUISITION	464	$39,305.44
Smart Dalton E. III2025.04.30	ACQUISITION	159	$13,468.89
Romanelli Joseph2025.04.30	ACQUISITION	2,063	$174,756.73
Romanelli Joseph2025.04.30	ACQUISITION	1,017	$86,150.07
Larson Betty D2025.04.30	ACQUISITION	11,350	$961,458.5
Larson Betty D2025.04.30	ACQUISITION	5,153	$436,510.63
Smart Dalton E. III2025.04.25	ACQUISITION	5,000	$290,400
Smart Dalton E. III2025.04.25	DISPOSAL	4,262	$352,723.12
Oosthuizen Johannes Jacobus2025.02.19	DISPOSAL	8,500	$714,744.6
Williams David Michael2025.02.13	DISPOSAL	6,000	$512,056.8
Oosthuizen Johannes Jacobus2025.02.08	ACQUISITION	13,002	$1,134,814.56
Oosthuizen Johannes Jacobus2025.02.08	ACQUISITION	6,404	$558,941.12
THULIN INGE G2025.02.06	ACQUISITION	2,832.861	$249,999.98
Downing Cristal N2025.02.06	DISPOSAL	2,361	$209,550.79
BAKER DOUGLAS M JR2025.02.05	ACQUISITION	15,000	$1,327,500
Zachary Jennifer2025.01.27	ACQUISITION	25,423	$2,489,928.62
Williams David Michael2025.01.27	ACQUISITION	10,246	$1,003,493.24
Smart Dalton2025.01.27	ACQUISITION	2,586	$253,272.84
Oosthuizen Johannes Jacobus2025.01.27	ACQUISITION	8,664	$848,552.16
Litchfield Caroline2025.01.27	ACQUISITION	23,432	$2,294,930.08
Li Dean Y2025.01.27	ACQUISITION	32,621	$3,194,900.74
Downing Cristal N2025.01.27	ACQUISITION	9,446	$925,141.24
DeLuca Richard R.2025.01.27	ACQUISITION	25,438	$2,491,397.72
Davis Robert M2025.01.27	ACQUISITION	95,275	$9,331,233.5
Chattopadhyay Sanat2025.01.27	ACQUISITION	28,136	$2,755,639.84
Guindo Chirfi2025.01.27	ACQUISITION	28,158	$2,757,794.52
Guindo Chirfi2024.08.05	ACQUISITION	36,901	$4,250,995.2
Guindo Chirfi2024.08.05	ACQUISITION	17,412	$2,005,862.4
Smart Dalton2024.05.04	ACQUISITION	612	$78,036.12
Smart Dalton2024.05.04	ACQUISITION	302	$38,508.02
DeLuca Richard R.2024.05.04	ACQUISITION	27,126	$3,458,836.26
DeLuca Richard R.2024.05.04	ACQUISITION	13,360	$1,703,533.6
Klobuchar Michael A2024.05.04	ACQUISITION	887	$113,101.37
Klobuchar Michael A2024.05.04	ACQUISITION	437	$55,721.87
Oosthuizen Johannes Jacobus2024.05.04	ACQUISITION	912	$116,289.12
Oosthuizen Johannes Jacobus2024.05.04	ACQUISITION	450	$57,379.5
Smart Dalton2024.05.03	ACQUISITION	516	$66,182.16
Smart Dalton2024.05.03	ACQUISITION	255	$32,706.3
Smart Dalton2024.05.03	ACQUISITION	1,530	$196,237.8
Smart Dalton2024.05.03	ACQUISITION	590	$75,673.4
Romanelli Joseph2024.05.02	ACQUISITION	2,262	$291,345.6
Romanelli Joseph2024.05.02	ACQUISITION	1,115	$143,612
Smart Dalton2024.05.02	ACQUISITION	381	$49,072.8
Smart Dalton2024.05.02	ACQUISITION	131	$16,872.8
Litchfield Caroline2024.02.14	ACQUISITION	38,291	$2,223,941.28
Litchfield Caroline2024.02.14	DISPOSAL	38,291	$4,805,520.5
Davis Robert M2024.02.14	ACQUISITION	85,021	$6,268,598.33
Davis Robert M2024.02.14	DISPOSAL	85,021	$10,661,573.89
Davis Robert M2024.02.13	ACQUISITION	41,509	$3,128,118.24
Davis Robert M2024.02.13	ACQUISITION	108,491	$7,999,041.43
Davis Robert M2024.02.13	DISPOSAL	124,676	$15,677,146.74
Davis Robert M2024.02.13	DISPOSAL	25,324	$3,200,277.45

Entity / Timeline	Methodology	Position	Net Value
Guindo Chirfi2026.02.12	DISPOSAL	10,000	$1,214,562
Li Dean Y2026.02.10	DISPOSAL	10,235	$1,202,843.81
Guindo Chirfi2026.02.09	DISPOSAL	10,000	$1,184,101
Zachary Jennifer2026.02.09	ACQUISITION	25,946	$3,091,522.98
Zachary Jennifer2026.02.09	DISPOSAL	25,946	$3,091,522.98
Zachary Jennifer2026.02.09	ACQUISITION	56,792	$6,766,891.74
Zachary Jennifer2026.02.09	DISPOSAL	56,792	$6,766,891.74
Zachary Jennifer2026.02.09	ACQUISITION	38,835	$4,627,275.69
Zachary Jennifer2026.02.09	DISPOSAL	38,835	$4,627,275.69
Williams David Michael2026.02.06	ACQUISITION	5,000	$388,100
Williams David Michael2026.02.06	DISPOSAL	5,000	$609,525
Oosthuizen Johannes Jacobus2026.02.06	DISPOSAL	15,000	$1,827,991.5
DeLuca Richard R.2026.02.06	DISPOSAL	37,685	$4,557,024.71
Guindo Chirfi2026.02.05	DISPOSAL	20,000	$2,437,676
Smart Dalton E. III2026.02.04	ACQUISITION	4,000	$248,280
Smart Dalton E. III2026.02.04	DISPOSAL	4,000	$478,700
Smart Dalton E. III2026.02.04	DISPOSAL	2,400	$287,220
Litchfield Caroline2026.02.04	ACQUISITION	41,997	$2,228,360.82
Litchfield Caroline2026.02.04	DISPOSAL	41,997	$5,023,311.57
Li Dean Y2026.02.04	ACQUISITION	15,087	$845,475.48
Li Dean Y2026.02.04	DISPOSAL	15,087	$1,791,824.15
Davis Robert M2026.02.04	DISPOSAL	14,972	$1,757,407.37
Davis Robert M2026.02.04	DISPOSAL	32,462	$3,841,919.9
Zachary Jennifer2026.01.26	ACQUISITION	11,583	$1,244,014.2
Williams David Michael2026.01.26	ACQUISITION	6,112	$656,428.8
Smart Dalton E. III2026.01.26	ACQUISITION	1,066	$114,488.4
Romanelli Joseph2026.01.26	ACQUISITION	5,703	$612,502.2
Oosthuizen Johannes Jacobus2026.01.26	ACQUISITION	5,026	$539,792.4
Litchfield Caroline2026.01.26	ACQUISITION	15,852	$1,702,504.8
Li Dean Y2026.01.26	ACQUISITION	20,469	$2,198,370.6
Guindo Chirfi2026.01.26	ACQUISITION	9,865	$1,059,501
DeLuca Richard R.2026.01.26	ACQUISITION	12,264	$1,317,153.6
Davis Robert M2026.01.26	ACQUISITION	47,434	$5,094,411.6
Chattopadhyay Sanat2026.01.26	ACQUISITION	13,880	$1,490,712
Downing Cristal N2025.11.10	DISPOSAL	7,085	$616,395
Williams David Michael2025.11.03	DISPOSAL	8,614	$720,039.95
Williams David Michael2025.08.04	ACQUISITION	17,119	$1,357,365.51
Williams David Michael2025.08.04	ACQUISITION	8,432	$668,573.28
Guindo Chirfi2025.08.04	ACQUISITION	36,903	$2,926,038.87
Guindo Chirfi2025.08.04	ACQUISITION	18,175	$1,441,095.75
Smart Dalton E. III2025.05.03	ACQUISITION	518	$43,087.24
Smart Dalton E. III2025.05.03	ACQUISITION	256	$21,294.08
Smart Dalton E. III2025.05.03	ACQUISITION	1,532	$127,431.76
Smart Dalton E. III2025.05.03	ACQUISITION	588	$48,909.84
Smart Dalton E. III2025.05.02	ACQUISITION	381	$31,722.06
Smart Dalton E. III2025.05.02	ACQUISITION	131	$10,907.06
Romanelli Joseph2025.05.02	ACQUISITION	2,262	$188,334.12
Romanelli Joseph2025.05.02	ACQUISITION	1,115	$92,834.9
Smart Dalton E. III2025.04.30	ACQUISITION	464	$39,305.44
Smart Dalton E. III2025.04.30	ACQUISITION	159	$13,468.89
Romanelli Joseph2025.04.30	ACQUISITION	2,063	$174,756.73
Romanelli Joseph2025.04.30	ACQUISITION	1,017	$86,150.07
Larson Betty D2025.04.30	ACQUISITION	11,350	$961,458.5
Larson Betty D2025.04.30	ACQUISITION	5,153	$436,510.63
Smart Dalton E. III2025.04.25	ACQUISITION	5,000	$290,400
Smart Dalton E. III2025.04.25	DISPOSAL	4,262	$352,723.12
Oosthuizen Johannes Jacobus2025.02.19	DISPOSAL	8,500	$714,744.6
Williams David Michael2025.02.13	DISPOSAL	6,000	$512,056.8
Oosthuizen Johannes Jacobus2025.02.08	ACQUISITION	13,002	$1,134,814.56
Oosthuizen Johannes Jacobus2025.02.08	ACQUISITION	6,404	$558,941.12
THULIN INGE G2025.02.06	ACQUISITION	2,832.861	$249,999.98
Downing Cristal N2025.02.06	DISPOSAL	2,361	$209,550.79
BAKER DOUGLAS M JR2025.02.05	ACQUISITION	15,000	$1,327,500
Zachary Jennifer2025.01.27	ACQUISITION	25,423	$2,489,928.62
Williams David Michael2025.01.27	ACQUISITION	10,246	$1,003,493.24
Smart Dalton2025.01.27	ACQUISITION	2,586	$253,272.84
Oosthuizen Johannes Jacobus2025.01.27	ACQUISITION	8,664	$848,552.16
Litchfield Caroline2025.01.27	ACQUISITION	23,432	$2,294,930.08
Li Dean Y2025.01.27	ACQUISITION	32,621	$3,194,900.74
Downing Cristal N2025.01.27	ACQUISITION	9,446	$925,141.24
DeLuca Richard R.2025.01.27	ACQUISITION	25,438	$2,491,397.72
Davis Robert M2025.01.27	ACQUISITION	95,275	$9,331,233.5
Chattopadhyay Sanat2025.01.27	ACQUISITION	28,136	$2,755,639.84
Guindo Chirfi2025.01.27	ACQUISITION	28,158	$2,757,794.52
Guindo Chirfi2024.08.05	ACQUISITION	36,901	$4,250,995.2
Guindo Chirfi2024.08.05	ACQUISITION	17,412	$2,005,862.4
Smart Dalton2024.05.04	ACQUISITION	612	$78,036.12
Smart Dalton2024.05.04	ACQUISITION	302	$38,508.02
DeLuca Richard R.2024.05.04	ACQUISITION	27,126	$3,458,836.26
DeLuca Richard R.2024.05.04	ACQUISITION	13,360	$1,703,533.6
Klobuchar Michael A2024.05.04	ACQUISITION	887	$113,101.37
Klobuchar Michael A2024.05.04	ACQUISITION	437	$55,721.87
Oosthuizen Johannes Jacobus2024.05.04	ACQUISITION	912	$116,289.12
Oosthuizen Johannes Jacobus2024.05.04	ACQUISITION	450	$57,379.5
Smart Dalton2024.05.03	ACQUISITION	516	$66,182.16
Smart Dalton2024.05.03	ACQUISITION	255	$32,706.3
Smart Dalton2024.05.03	ACQUISITION	1,530	$196,237.8
Smart Dalton2024.05.03	ACQUISITION	590	$75,673.4
Romanelli Joseph2024.05.02	ACQUISITION	2,262	$291,345.6
Romanelli Joseph2024.05.02	ACQUISITION	1,115	$143,612
Smart Dalton2024.05.02	ACQUISITION	381	$49,072.8
Smart Dalton2024.05.02	ACQUISITION	131	$16,872.8
Litchfield Caroline2024.02.14	ACQUISITION	38,291	$2,223,941.28
Litchfield Caroline2024.02.14	DISPOSAL	38,291	$4,805,520.5
Davis Robert M2024.02.14	ACQUISITION	85,021	$6,268,598.33
Davis Robert M2024.02.14	DISPOSAL	85,021	$10,661,573.89
Davis Robert M2024.02.13	ACQUISITION	41,509	$3,128,118.24
Davis Robert M2024.02.13	ACQUISITION	108,491	$7,999,041.43
Davis Robert M2024.02.13	DISPOSAL	124,676	$15,677,146.74
Davis Robert M2024.02.13	DISPOSAL	25,324	$3,200,277.45

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 $78.17M in recent insider liquidations. The most notable recent seller is Davis Robert M, 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 $76.59M generated by 17 active C-Suite entities.

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