Michael D Shafer

CIK 2020619 · View on SEC EDGAR ↗

Insider

First SEC filing: May 2, 2024 · Latest: March 12, 2026

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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.

Insider at

TMO selling Aug. 11, 2026

Insider transactions

0 buys (P) 5 sells (S) Net: $-22,537,536 + 28 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

28 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Aug. 11, 2026	TMO	M	11,200	$309.63	$3,467,856	32,194 Direct	+53.35%	Acquired	100.1% (price as of 2026-08-20)
Aug. 11, 2026	TMO	S 10b5-1	11,200	$600.00	$6,720,000	20,994 Direct	-34.79%	Disposed	3.3% (price as of 2026-08-20)
Aug. 11, 2026	TMO	M	14,300	$418.32	$5,981,976	35,294 Direct	+68.11%	Acquired	48.1% (price as of 2026-08-20)
Aug. 11, 2026	TMO	S 10b5-1	14,300	$600.00	$8,580,000	20,994 Direct	-40.52%	Disposed	3.3% (price as of 2026-08-20)
Aug. 11, 2026	TMO	M	11,200	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Aug. 11, 2026	TMO	M	14,300	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 11, 2026	TMO	S 10b5-1	1,607	$499.40	$802,536	20,950 Direct	-7.12%	Disposed	24.1% (price as of 2026-08-20)
Feb. 28, 2026	TMO	F	252	$521.11	$131,320	22,557 Direct	-1.10%	Disposed	18.9% (price as of 2026-08-20)
Feb. 28, 2026	TMO	F	466	$521.11	$242,837	22,809 Direct	-2.00%	Disposed	18.9% (price as of 2026-08-20)
Feb. 28, 2026	TMO	F	98	$521.11	$51,069	23,275 Direct	-0.42%	Disposed	18.9% (price as of 2026-08-20)
Feb. 25, 2026	TMO	A	13,698	—	—	13,698 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 25, 2026	TMO	A	3,129	—	—	23,373 Direct	+15.46%	Acquired	(price as of 2026-08-20)
Feb. 25, 2026	TMO	A	1,569	—	—	20,244 Direct	+8.40%	Acquired	(price as of 2026-08-20)
Nov. 25, 2025	TMO	M	2,250	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 25, 2025	TMO	M	8,475	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 25, 2025	TMO	S 10b5-1	2,250	$600.00	$1,350,000	18,731 Direct	-10.72%	Disposed	3.3% (price as of 2026-08-20)
Nov. 25, 2025	TMO	M	2,250	$294.02	$661,545	20,981 Direct	+12.01%	Acquired	110.8% (price as of 2026-08-20)
Nov. 25, 2025	TMO	S 10b5-1	8,475	$600.00	$5,085,000	18,731 Direct	-31.15%	Disposed	3.3% (price as of 2026-08-20)
Nov. 25, 2025	TMO	M	8,475	$253.99	$2,152,565	27,206 Direct	+45.25%	Acquired	144.0% (price as of 2026-08-20)
Aug. 28, 2025	TMO	F	114	$489.74	$55,830	18,731 Direct	-0.60%	Disposed	26.5% (price as of 2026-08-20)
Aug. 28, 2025	TMO	F	176	$489.74	$86,194	18,845 Direct	-0.93%	Disposed	26.5% (price as of 2026-08-20)
Aug. 28, 2025	TMO	F	162	$489.74	$79,338	19,021 Direct	-0.84%	Disposed	26.5% (price as of 2026-08-20)
Aug. 28, 2025	TMO	F	145	$489.74	$71,012	19,184 Direct	-0.75%	Disposed	26.5% (price as of 2026-08-20)
March 3, 2025	TMO	S 10b5-1	1,780	$530.92	$945,038	19,279 Direct	-8.45%	Disposed	16.7% (price as of 2026-08-20)
Feb. 28, 2025	TMO	F	636	$528.96	$336,419	21,059 Direct	-2.93%	Disposed	17.1% (price as of 2026-08-20)
Feb. 28, 2025	TMO	F	110	$528.96	$58,186	21,695 Direct	-0.50%	Disposed	17.1% (price as of 2026-08-20)
Feb. 28, 2025	TMO	F	245	$528.96	$129,595	21,805 Direct	-1.11%	Disposed	17.1% (price as of 2026-08-20)
Feb. 19, 2025	TMO	A	9,610	—	—	9,610 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 19, 2025	TMO	A	4,747	—	—	22,398 Direct	+26.89%	Acquired	(price as of 2026-08-20)
Feb. 19, 2025	TMO	A	1,568	—	—	17,651 Direct	+9.75%	Acquired	(price as of 2026-08-20)
Aug. 28, 2024	TMO	F	106	$613.14	$64,993	16,083 Direct	-0.65%	Disposed	1.1% (price as of 2026-08-20)
Aug. 28, 2024	TMO	F	135	$613.14	$82,774	16,189 Direct	-0.83%	Disposed	1.1% (price as of 2026-08-20)
Aug. 28, 2024	TMO	F	145	$613.14	$88,905	16,325 Direct	-0.88%	Disposed	1.1% (price as of 2026-08-20)
Aug. 23, 2024	TMO	F	279	$606.12	$169,107	16,470 Direct	-1.67%	Disposed	2.2% (price as of 2026-08-20)

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
Aug. 11, 2026	TMO	Stock Option (Right to Buy)	Common Stock (11,200)	$309.63	Feb. 25, 2027	11,200	Disposed
Aug. 11, 2026	TMO	Stock Option (Right to Buy)	Common Stock (14,300)	$418.32	Sept. 9, 2027	14,300	Disposed
Feb. 25, 2026	TMO	Stock Option (Right to Buy)	Common Stock (13,698)	$513.68	Feb. 25, 2036	13,698	Acquired
Nov. 25, 2025	TMO	Stock Option (Right to Buy)	Common Stock (2,250)	$294.02	Sept. 5, 2026	2,250	Disposed
Nov. 25, 2025	TMO	Stock Option (Right to Buy)	Common Stock (8,475)	$253.99	Feb. 26, 2026	8,475	Disposed
Feb. 19, 2025	TMO	Stock Option (Right to Buy)	Common Stock (9,610)	$530.86	Feb. 19, 2035	9,610	Acquired

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

Initial ownership (Form 3) 9 holdings

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

Date	Ticker	Security	Shares	Ownership
May 2, 2024	TMO	Common Stock	16,696	Direct
May 2, 2024	TMO	Stock Option (Right to Buy)→ Common Stock (8,475)	8,475	Direct
May 2, 2024	TMO	Stock Option (Right to Buy)→ Common Stock (2,250)	2,250	Direct
May 2, 2024	TMO	Stock Option (Right to Buy)→ Common Stock (11,200)	11,200	Direct
May 2, 2024	TMO	Stock Option (Right to Buy)→ Common Stock (14,300)	14,300	Direct
May 2, 2024	TMO	Stock Option (Right to Buy)→ Common Stock (8,425)	8,425	Direct
May 2, 2024	TMO	Stock Option (Right to Buy)→ Common Stock (7,698)	7,698	Direct
May 2, 2024	TMO	Stock Option (Right to Buy)→ Common Stock (7,419)	7,419	Direct
May 2, 2024	TMO	Stock Option (Right to Buy)→ Common Stock (9,077)	9,077	Direct