Robert M Davis

Insider

First SEC filing: May 7, 2026 · Latest: May 7, 2026

On this page

Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Initial holdings The stakes this person held when they first started reporting.
Compensation Executive pay disclosed in company proxy statements.

Insider at

Insider transactions

0 buys (P) 2 sells (S) Net: $-5,599,291 + 84 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

84 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 7, 2026	DUKU	A	1,602	$124.87	$200,042	14,262 Direct	+12.65%	Acquired	-59.5% (price as of 2026-08-20)
May 5, 2026	MRK	A	139,697	—	—	139,697 Direct	—	Acquired	(price as of 2026-08-20)
May 5, 2026	MRK	A	47,724	—	—	47,724 Direct	—	Acquired	(price as of 2026-08-20)
April 29, 2026	MRK	M	13,300	—	—	26,601 Direct	-33.33%	Disposed	(price as of 2026-08-20)
April 29, 2026	MRK	F	6,551	$110.03	$720,807	450,351 Direct	-1.43%	Disposed	36.7% (price as of 2026-08-20)
April 29, 2026	MRK	M	13,300	$110.03	$1,463,399	456,902 Direct	+3.00%	Acquired	36.7% (price as of 2026-08-20)
Feb. 4, 2026	MRK	S	32,462	$118.35	$3,841,878	443,602 Direct	-6.82%	Disposed	27.1% (price as of 2026-08-20)
Feb. 4, 2026	MRK	S	14,972	$117.38	$1,757,413	476,064 Direct	-3.05%	Disposed	28.1% (price as of 2026-08-20)
Jan. 26, 2026	MRK	A	47,434	$107.40	$5,094,412	491,036 Direct	+10.69%	Acquired	40.0% (price as of 2026-08-20)
May 1, 2025	DUKU	A	1,607	$121.33	$194,977	12,660 Direct	+14.54%	Acquired	-58.3% (price as of 2026-08-20)
April 29, 2025	MRK	A	181,623	—	—	181,623 Direct	—	Acquired	(price as of 2026-08-20)
April 29, 2025	MRK	A	39,901	—	—	39,901 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 27, 2025	MRK	A	95,275	$97.94	$9,331,234	443,602 Direct	+27.35%	Acquired	53.6% (price as of 2026-08-20)
May 9, 2024	DUKU	A	1,699	$103.02	$175,031	11,053 Direct	+18.16%	Acquired	-50.9% (price as of 2026-08-20)
April 30, 2024	MRK	A	181,641	—	—	181,641 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 14, 2024	MRK	M	85,021	—	—	96,760 Direct	-46.77%	Disposed	(price as of 2026-08-20)
Feb. 14, 2024	MRK	S	85,021	$125.40	$10,661,633	348,327 Direct	-19.62%	Disposed	19.9% (price as of 2026-08-20)
Feb. 14, 2024	MRK	M	85,021	$73.73	$6,268,598	433,348 Direct	+24.41%	Acquired	104.0% (price as of 2026-08-20)
Feb. 13, 2024	MRK	M	108,491	—	—	181,781 Direct	-37.38%	Disposed	(price as of 2026-08-20)
Feb. 13, 2024	MRK	M	41,509	—	—	83,020 Direct	-33.33%	Disposed	(price as of 2026-08-20)
Feb. 13, 2024	MRK	S	25,324	$126.37	$3,200,194	348,327 Direct	-6.78%	Disposed	19.0% (price as of 2026-08-20)
Feb. 13, 2024	MRK	S	124,676	$125.74	$15,676,760	373,651 Direct	-25.02%	Disposed	19.6% (price as of 2026-08-20)
Feb. 13, 2024	MRK	M	108,491	$73.73	$7,999,041	498,327 Direct	+27.83%	Acquired	104.0% (price as of 2026-08-20)
Feb. 13, 2024	MRK	M	41,509	$75.36	$3,128,118	389,836 Direct	+11.92%	Acquired	99.6% (price as of 2026-08-20)
Jan. 22, 2024	MRK	A	76,510	$119.43	$9,137,589	348,327 Direct	+28.15%	Acquired	25.9% (price as of 2026-08-20)
May 4, 2023	DUKU	A	1,784	$98.11	$175,028	9,354 Direct	+23.57%	Acquired	-48.4% (price as of 2026-08-20)
May 2, 2023	MRK	A	186,722	—	—	186,722 Direct	—	Acquired	(price as of 2026-08-20)
April 28, 2023	MRK	M	143,329	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
April 28, 2023	MRK	S	143,329	$114.93	$16,472,802	271,817 Direct	-34.52%	Disposed	30.9% (price as of 2026-08-20)
April 28, 2023	MRK	M	143,329	$56.04	$8,032,157	415,146 Direct	+52.73%	Acquired	168.4% (price as of 2026-08-20)
Jan. 23, 2023	MRK	A	24,224	$109.88	$2,661,733	271,817 Direct	+9.78%	Acquired	36.9% (price as of 2026-08-20)
Nov. 9, 2022	MRK	M	167,613	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 9, 2022	MRK	S	100	$103.59	$10,359	247,593 Direct	-0.04%	Disposed	45.2% (price as of 2026-08-20)
Nov. 9, 2022	MRK	S	79,918	$102.98	$8,229,956	247,693 Direct	-24.39%	Disposed	46.0% (price as of 2026-08-20)
Nov. 9, 2022	MRK	S	87,595	$101.94	$8,929,434	327,611 Direct	-21.10%	Disposed	47.5% (price as of 2026-08-20)
Nov. 9, 2022	MRK	M	167,613	—	—	415,206 Direct	+67.70%	Acquired	(price as of 2026-08-20)
May 5, 2022	DUKU	A	1,590	$110.05	$174,980	7,570 Direct	+26.59%	Acquired	-54.0% (price as of 2026-08-20)
May 3, 2022	MRK	A	228,155	—	—	228,155 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 24, 2022	MRK	A	29,896	$73.51	$2,197,655	247,593 Direct	+13.73%	Acquired	104.6% (price as of 2026-08-20)
May 6, 2021	DUKU	A	1,591	$100.54	$159,959	5,980 Direct	+36.25%	Acquired	-49.7% (price as of 2026-08-20)
May 4, 2021	MRK	A	281,633	—	—	281,633 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 26, 2021	MRK	A	46,641	$72.62	$3,387,069	217,697 Direct	+27.27%	Acquired	117.0% (price as of 2026-08-20)
Oct. 5, 2020	MRK	M	251,273	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Oct. 5, 2020	MRK	S	251,273	$81.03	$20,360,651	171,056 Direct	-59.50%	Disposed	94.5% (price as of 2026-08-20)
Oct. 5, 2020	MRK	M	251,273	—	—	422,329 Direct	+146.90%	Acquired	(price as of 2026-08-20)
May 7, 2020	DUKU	A	1,992	$80.31	$159,978	4,389 Direct	+83.10%	Acquired	-37.0% (price as of 2026-08-20)
May 1, 2020	MRK	A	120,823	—	—	120,823 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 28, 2020	MRK	A	33,396	$76.56	$2,556,798	171,056 Direct	+24.26%	Acquired	105.9% (price as of 2026-08-20)
June 25, 2019	MRK	M	216,718	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
June 25, 2019	MRK	S 10b5-1	26,550	$86.00	$2,283,300	137,660 Direct	-16.17%	Disposed	83.3% (price as of 2026-08-20)
June 25, 2019	MRK	S 10b5-1	190,168	$85.35	$16,230,839	164,210 Direct	-53.66%	Disposed	84.7% (price as of 2026-08-20)
June 25, 2019	MRK	M	216,718	—	—	354,378 Direct	+157.43%	Acquired	(price as of 2026-08-20)
May 3, 2019	MRK	A	112,907	—	—	112,907 Direct	—	Acquired	(price as of 2026-08-20)
May 2, 2019	DUKU	A	1,782	$89.81	$160,041	2,397 Direct	+289.76%	Acquired	-43.7% (price as of 2026-08-20)
March 25, 2019	MRK	M	192,572	$58.22	$11,211,542	330,232 Direct	+139.89%	Acquired	170.7% (price as of 2026-08-20)
March 25, 2019	MRK	S 10b5-1	192,572	$82.38	$15,864,081	137,660 Direct	-58.31%	Disposed	91.3% (price as of 2026-08-20)
March 25, 2019	MRK	M	192,572	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Feb. 25, 2019	MRK	A	30,610	$80.38	$2,460,432	137,660 Direct	+28.59%	Acquired	96.1% (price as of 2026-08-20)
May 4, 2018	MRK	A	139,063	—	—	139,063 Direct	—	Acquired	(price as of 2026-08-20)
May 3, 2018	DUKU	A	2,006	$79.76	$159,999	2,006 Direct	—	Acquired	-36.6% (price as of 2026-08-20)
Feb. 27, 2018	MRK	A	30,908	$54.72	$1,691,286	106,128 Direct	+41.09%	Acquired	188.0% (price as of 2026-08-20)
Jan. 8, 2018	DUKU	A	615	$82.20	$50,553	615 Direct	—	Acquired	-38.5% (price as of 2026-08-20)
May 9, 2017	MRK	M	85,881	—	—	118,031 Direct	+267.13%	Acquired	(price as of 2026-08-20)
May 9, 2017	MRK	F	44,530	$64.01	$2,850,365	73,501 Direct	-37.73%	Disposed	146.2% (price as of 2026-08-20)
May 9, 2017	MRK	M	85,881	$64.01	$5,497,243	0 Direct	-100.00%	Disposed	146.2% (price as of 2026-08-20)
May 5, 2017	MRK	A	162,625	—	—	162,625 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 27, 2017	MRK	A	31,913	$65.85	$2,101,471	31,913 Direct	—	Acquired	139.4% (price as of 2026-08-20)
May 10, 2016	MRK	A	251,273	—	—	251,273 Direct	—	Acquired	(price as of 2026-08-20)
May 1, 2015	MRK	A	216,718	—	—	216,718 Direct	—	Acquired	(price as of 2026-08-20)
May 9, 2014	MRK	A	192,572	—	—	192,572 Direct	—	Acquired	(price as of 2026-08-20)
May 9, 2014	MRK	A	85,881	—	—	85,881 Direct	—	Acquired	(price as of 2026-08-20)
March 4, 2014	BAX	A	103,181	—	—	103,181 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 29, 2014	BAX	A	6,836	—	—	125,899 Direct	+5.74%	Acquired	(price as of 2026-08-20)
Jan. 29, 2014	BAX	F	2,225	$68.40	$152,190	123,674 Direct	-1.77%	Disposed	-28.4% (price as of 2026-08-20)
Jan. 29, 2014	BAX	A	4,472	—	—	128,146 Direct	+3.62%	Acquired	(price as of 2026-08-20)
Sept. 3, 2013	BAX	F	2,530	$69.54	$175,936	118,308 Direct	-2.09%	Disposed	-29.5% (price as of 2026-08-20)
May 17, 2013	BAX	M 10b5-1	57,000	$52.50	$2,992,500	174,442 Direct	+48.53%	Acquired	-6.7% (price as of 2026-08-20)
May 17, 2013	BAX	M 10b5-1	76,800	$51.21	$3,932,928	251,242 Direct	+44.03%	Acquired	-4.3% (price as of 2026-08-20)
May 17, 2013	BAX	S 10b5-1	130,800	$73.00	$9,548,400	120,442 Direct	-52.06%	Disposed	-32.9% (price as of 2026-08-20)
May 17, 2013	BAX	M 10b5-1	19,000	—	—	38,000 Direct	-33.33%	Disposed	(price as of 2026-08-20)
May 17, 2013	BAX	M 10b5-1	19,000	—	—	19,000 Direct	-50.00%	Disposed	(price as of 2026-08-20)
May 17, 2013	BAX	M 10b5-1	19,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 17, 2013	BAX	M 10b5-1	25,600	—	—	51,200 Direct	-33.33%	Disposed	(price as of 2026-08-20)
May 17, 2013	BAX	M 10b5-1	25,600	—	—	25,600 Direct	-50.00%	Disposed	(price as of 2026-08-20)
May 17, 2013	BAX	M 10b5-1	25,600	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 5, 2013	BAX	A	118,953	—	—	118,953 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 16, 2013	BAX	A	11,943	—	—	120,993 Direct	+10.95%	Acquired	(price as of 2026-08-20)
Jan. 16, 2013	BAX	F	3,901	$66.52	$259,495	117,092 Direct	-3.22%	Disposed	-26.3% (price as of 2026-08-20)
June 1, 2012	BAX	A	50,000	—	—	107,919 Direct	+86.33%	Acquired	(price as of 2026-08-20)
March 6, 2012	BAX	A	88,597	—	—	88,597 Direct	—	Acquired	(price as of 2026-08-20)
July 25, 2011	BAX	M 10b5-1	25,000	$34.85	$871,250	78,825 Direct	+46.45%	Acquired	40.6% (price as of 2026-08-20)
July 25, 2011	BAX	M 10b5-1	45,000	$38.35	$1,725,750	123,825 Direct	+57.09%	Acquired	27.8% (price as of 2026-08-20)
July 25, 2011	BAX	M 10b5-1	35,000	$36.99	$1,294,650	158,825 Direct	+28.27%	Acquired	32.5% (price as of 2026-08-20)
July 25, 2011	BAX	S 10b5-1	100,300	$61.66	$6,184,498	58,525 Direct	-63.15%	Disposed	-20.5% (price as of 2026-08-20)
July 25, 2011	BAX	S 10b5-1	700	$62.14	$43,498	57,825 Direct	-1.20%	Disposed	-21.1% (price as of 2026-08-20)
July 25, 2011	BAX	M 10b5-1	25,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
July 25, 2011	BAX	M 10b5-1	45,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
July 25, 2011	BAX	M 10b5-1	35,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 4, 2011	BAX	A	84,367	—	—	84,367 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 19, 2011	BAX	A	7,104	—	—	56,051 Direct	+14.51%	Acquired	(price as of 2026-08-20)

Showing latest 100 of 137 transactions

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
May 5, 2026	MRK	Stock Option (Right to Buy)	Common Stock (139,697)	$113.15	May 4, 2036	139,697	Acquired
May 5, 2026	MRK	Restricted Stock Unit	Common Stock (47,724)	—	May 5, 2029	47,724	Acquired
April 29, 2026	MRK	Restricted Stock Unit	Common Stock (13,300)	—	April 29, 2028	13,300	Disposed
April 29, 2025	MRK	Stock Option (Right to Buy)	Common Stock (181,623)	$84.71	April 28, 2035	181,623	Acquired
April 29, 2025	MRK	Restricted Stock Unit	Common Stock (39,901)	—	April 29, 2028	39,901	Acquired
April 30, 2024	MRK	Stock Option (Right to Buy)	Common Stock (181,641)	$129.22	April 29, 2034	181,641	Acquired
Feb. 14, 2024	MRK	Stock Option (Right to Buy)	Common Stock (85,021)	—	May 3, 2031	85,021	Disposed
Feb. 13, 2024	MRK	Stock Option (Right to Buy)	Common Stock (108,491)	—	May 3, 2031	108,491	Disposed
Feb. 13, 2024	MRK	Stock Option (Right to Buy)	Common Stock (41,509)	—	April 30, 2030	41,509	Disposed
May 2, 2023	MRK	Stock Option (Right to Buy)	Common Stock (186,722)	$117.89	May 1, 2033	186,722	Acquired
April 28, 2023	MRK	Stock Option (Right to Buy)	Common Stock (143,329)	—	May 3, 2028	143,329	Disposed
Nov. 9, 2022	MRK	Stock Option (Right to Buy)	Common Stock (167,613)	—	May 4, 2027	167,613	Disposed
May 3, 2022	MRK	Stock Option (Right to Buy)	Common Stock (228,155)	$87.10	May 2, 2032	228,155	Acquired
May 4, 2021	MRK	Stock Option (Right to Buy)	Common Stock (281,633)	$75.99	May 3, 2031	281,633	Acquired
Oct. 5, 2020	MRK	Stock Option (Right to Buy)	Common Stock (251,273)	$54.68	May 9, 2026	251,273	Disposed
May 1, 2020	MRK	Stock Option (Right to Buy)	Common Stock (120,823)	$77.67	April 30, 2030	120,823	Acquired
June 25, 2019	MRK	Stock Option (Right to Buy)	Common Stock (216,718)	$59.86	April 30, 2025	216,718	Disposed
May 3, 2019	MRK	Stock Option (right to buy)	Common Stock (112,907)	$80.00	May 2, 2029	112,907	Acquired
March 25, 2019	MRK	Stock Option (right to buy)	Common Stock (192,572)	$58.22	May 8, 2024	192,572	Disposed
May 4, 2018	MRK	Stock Option (right to buy)	Common Stock (139,063)	$57.75	May 3, 2028	139,063	Acquired
May 3, 2018	DUKU	Director Savings Plan Restricted Stock Unit Deferrals	Common Stock (2,006)	—	—	2,006	Acquired
May 9, 2017	MRK	Restricted Stock Unit	Common Stock (85,881)	—	May 9, 2017	85,881	Disposed
May 5, 2017	MRK	Stock Option (right to buy)	Common Stock (162,625)	$63.97	May 4, 2027	162,625	Acquired
May 10, 2016	MRK	Stock Option (right to buy)	Common Stock (251,273)	$54.68	May 9, 2026	251,273	Acquired
May 1, 2015	MRK	Stock Option (right to buy)	Common Stock (216,718)	$59.86	April 30, 2025	216,718	Acquired
May 9, 2014	MRK	Stock Option (right to buy)	Common Stock (192,572)	$58.22	May 8, 2024	192,572	Acquired
May 9, 2014	MRK	Restricted Stock Unit	Common Stock (85,881)	—	May 9, 2017	85,881	Acquired
March 4, 2014	BAX	Stock Option (Right to Buy)	Common Stock, $1 par value (103,181)	$69.03	March 4, 2024	103,181	Acquired
May 17, 2013	BAX	Stock Option (Right to Buy)	Common Stock, $1 par value (19,000)	$52.50	March 4, 2019	19,000	Disposed
May 17, 2013	BAX	Stock Option (Right to Buy)	Common Stock, $1 par value (19,000)	$52.50	March 4, 2019	19,000	Disposed
May 17, 2013	BAX	Stock Option (Right to Buy)	Common Stock, $1 par value (19,000)	$52.50	March 4, 2019	19,000	Disposed
May 17, 2013	BAX	Stock Option (Right to Buy)	Common Stock, $1 par value (25,600)	$51.21	March 15, 2017	25,600	Disposed
May 17, 2013	BAX	Stock Option (Right to Buy)	Common Stock, $1 par value (25,600)	$51.21	March 15, 2017	25,600	Disposed
May 17, 2013	BAX	Stock Option (Right to Buy)	Common Stock, $1 par value (25,600)	$51.21	March 15, 2017	25,600	Disposed
March 5, 2013	BAX	Stock Option (Right to Buy)	Common Stock, $1 par value (118,953)	$70.24	March 3, 2023	118,953	Acquired
March 6, 2012	BAX	Stock Option (Right to Buy)	Common Stock, $1 par value (88,597)	$57.48	March 4, 2022	88,597	Acquired
July 25, 2011	BAX	Stock Option (Right to Buy)	Common Stock, $1 par value (25,000)	$34.85	March 13, 2015	25,000	Disposed
July 25, 2011	BAX	Stock Option (Right to Buy)	Common Stock, $1 par value (45,000)	$38.35	March 14, 2016	45,000	Disposed
July 25, 2011	BAX	Stock Option (Right to Buy)	Common Stock, $1 par value (35,000)	$36.99	May 17, 2016	35,000	Disposed
March 4, 2011	BAX	Stock Options (Right to Buy)	Common Stock, $1 par value (84,367)	$53.80	March 4, 2021	84,367	Acquired
March 3, 2010	BAX	Stock Options (Right to Buy)	Common Stock, $1 par value (64,907)	$59.00	March 3, 2020	64,907	Acquired
March 4, 2009	BAX	Stock Option (Right to Buy)	Common Stock, $1 par value (57,000)	$52.50	March 4, 2019	57,000	Acquired
March 5, 2008	BAX	Stock Option (Right to Buy)	Common Stock, $1 par value (60,600)	$58.12	March 5, 2018	60,600	Acquired
Dec. 14, 2007	BAX	Stock Option (Right to Buy)	Common Stock, $1 par value (20,000)	$31.65	Nov. 28, 2014	20,000	Disposed
March 15, 2007	BAX	Stock Option (Right to Buy)	Common Stock, $1 par value (76,800)	$51.21	March 15, 2017	76,800	Acquired
May 17, 2006	BAX	Option (Right to Buy)	Common Stock, $1 par value (35,000)	$36.99	May 17, 2016	35,000	Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 5 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
May 26, 2006	BAX	Common Stock, $1 par value	—	Direct
May 18, 2006	BAX	Common Stock, $1 par value	—	Direct
May 18, 2006	BAX	Stock Option (Right to Buy)→ Common Stock, $1 par value (20,000)	20,000	Direct
May 18, 2006	BAX	Stock Option (Right to Buy)→ Common Stock, $1 par value (25,000)	25,000	Direct
May 18, 2006	BAX	Stock Option (Right to Buy)→ Common Stock, $1 par value (45,000)	45,000	Direct

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

BAX

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2013	$742,308	—	—	—	$772,500	$100,184	$72,905	$4,212,953
2012	$692,308	—	—	—	$1,367,800	$479,273	$53,935	$7,474,508
2011	$642,308	—	—	—	$867,054	$296,283	$45,896	$4,015,453

MRK

CEO

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2023	$1,603,091	$0	—	—	$3,585,300	$651,163	$386,148	$20,273,287
2022	$1,538,613	$0	—	—	$4,125,150	$180,259	$412,490	$18,650,093
2021	$1,319,959	$0	—	—	$2,834,606	$235,640	$247,337	$13,722,121

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.