Lisa R Bacus

Insider

First SEC filing: May 19, 2025 · Latest: May 19, 2025

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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

Insider transactions

1 buys (P) 0 sells (S) Net: $50,886 + 57 non-open-market transactions below Avg return of open purchases vs now: -81.4% 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

57 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Aug. 14, 2026	TDC	A	2,197	—	—	86,091 Direct	+2.62%	Acquired	(price as of 2026-08-21)
May 1, 2026	SIGIP	A	1,767	—	—	8,552 Direct	+26.04%	Acquired	(price as of 2026-08-21)
April 29, 2026	PLOW	A	2,737	—	—	20,242 Direct	+15.64%	Acquired	(price as of 2026-08-21)
Feb. 2, 2026	SIGIP	P	600	$84.81	$50,886	6,778 Direct	+9.71%	Acquired	-81.4% (price as of 2026-08-21)
May 15, 2025	TDC	A	11,489	—	—	75,104 Direct	+18.06%	Acquired	(price as of 2026-08-21)
May 2, 2025	SIGIP	A	1,666	—	—	6,157 Direct	+37.10%	Acquired	(price as of 2026-08-21)
Feb. 18, 2025	PLOW	A	4,394	—	—	17,505 Direct	+33.51%	Acquired	(price as of 2026-08-21)
May 14, 2024	TDC	A	6,927	—	—	63,615 Direct	+12.22%	Acquired	(price as of 2026-08-21)
May 3, 2024	SIGIP	A	1,141	—	—	4,472 Direct	+34.25%	Acquired	(price as of 2026-08-21)
Feb. 13, 2024	PLOW	A	4,142	—	—	13,111 Direct	+46.18%	Acquired	(price as of 2026-08-21)
May 12, 2023	TDC	A	6,176	—	—	56,688 Direct	+12.23%	Acquired	(price as of 2026-08-21)
May 5, 2023	SIGIP	A	1,065	—	—	3,318 Direct	+47.27%	Acquired	(price as of 2026-08-21)
May 10, 2022	TDC	A	5,828	—	—	50,512 Direct	+13.04%	Acquired	(price as of 2026-08-21)
May 6, 2022	SIGIP	A	1,172	—	—	2,237 Direct	+110.05%	Acquired	(price as of 2026-08-21)
May 4, 2021	TDC	A	5,657	—	—	44,684 Direct	+14.50%	Acquired	(price as of 2026-08-21)
April 30, 2021	SIGIP	A	1,051	—	—	1,051 Direct	—	Acquired	(price as of 2026-08-21)
May 5, 2020	TDC	A	10,913	—	—	39,027 Direct	+38.82%	Acquired	(price as of 2026-08-21)
April 30, 2019	TDC	A	5,628	—	—	28,114 Direct	+25.03%	Acquired	(price as of 2026-08-21)
March 14, 2019	TDC	S	12,000	$48.04	$576,480	22,486 Direct	-34.80%	Disposed	-42.9% (price as of 2026-08-21)
March 1, 2019	CI	A	2,624	—	—	24,860 Direct	+11.80%	Acquired	(price as of 2026-08-21)
March 1, 2019	CI	F	836	$177.85	$148,683	24,024 Direct	-3.36%	Disposed	55.7% (price as of 2026-08-21)
Feb. 27, 2019	CI	A	1,036	—	—	22,236 Direct	+4.89%	Acquired	(price as of 2026-08-21)
Feb. 27, 2019	CI	A	3,578	—	—	3,578 Direct	—	Acquired	(price as of 2026-08-21)
Dec. 20, 2018	701221	D	21,200	—	—	0	—	—
April 17, 2018	TDC	A	6,216	—	—	34,486 Direct	+21.99%	Acquired	(price as of 2026-08-21)
March 2, 2018	701221	A	3,947	—	—	22,448 Direct	+21.33%	Acquired
March 2, 2018	701221	F	1,248	$192.44	$240,165	21,200 Direct	-5.56%	Disposed
Feb. 28, 2018	701221	A	5,844	—	—	5,844 Direct	—	Acquired
Aug. 16, 2017	701221	S	2,236	$179.95	$402,368	18,501 Direct	-10.78%	Disposed
May 24, 2017	701221	M	2,836	—	—	5,673 Direct	-33.33%	Disposed
May 24, 2017	701221	M	4,603	—	—	0 Direct	-100.00%	Disposed
May 24, 2017	701221	M	6,252	—	—	3,126 Direct	-66.67%	Disposed
May 24, 2017	701221	S	11,455	$161.57	$1,850,784	20,737 Direct	-35.58%	Disposed
May 24, 2017	701221	M	2,836	$139.22	$394,828	32,192 Direct	+9.66%	Acquired
May 24, 2017	701221	M	4,603	$78.04	$359,218	29,356 Direct	+18.60%	Acquired
May 24, 2017	701221	M	6,252	$120.90	$755,867	24,753 Direct	+33.79%	Acquired
April 19, 2017	TDC	A	8,183	—	—	28,270 Direct	+40.74%	Acquired	(price as of 2026-08-21)
Feb. 28, 2017	701221	A	7,711	—	—	7,711 Direct	—	Acquired
Feb. 24, 2017	701221	F	1,784	$147.08	$262,391	18,501 Direct	-8.79%	Disposed
Feb. 24, 2017	701221	A	5,144	—	—	20,285 Direct	+33.97%	Acquired
Nov. 15, 2016	701221	M	11,331	—	—	0 Direct	-100.00%	Disposed
Nov. 15, 2016	701221	M	9,207	—	—	4,603 Direct	-66.67%	Disposed
Nov. 15, 2016	701221	S	15,548	$137.69	$2,140,804	15,141 Direct	-50.66%	Disposed
Nov. 15, 2016	701221	M	9,207	$78.04	$718,514	30,689 Direct	+42.86%	Acquired
Nov. 15, 2016	701221	M	11,331	$67.33	$762,916	21,482 Direct	+111.62%	Acquired
April 26, 2016	TDC	A	9,819	—	—	20,087 Direct	+95.63%	Acquired	(price as of 2026-08-21)
March 1, 2016	701221	A	8,509	—	—	8,509 Direct	—	Acquired
Feb. 26, 2016	701221	F	2,657	$141.59	$376,205	10,151 Direct	-20.74%	Disposed
Feb. 26, 2016	701221	A	7,506	—	—	12,808 Direct	+141.57%	Acquired
Dec. 31, 2015	TDC	A	474	$26.42	$12,523	10,268 Direct	+4.84%	Acquired	3.9% (price as of 2026-08-21)
Sept. 30, 2015	TDC	A	432	$28.96	$12,511	9,794 Direct	+4.61%	Acquired	-5.2% (price as of 2026-08-21)
June 30, 2015	TDC	A	338	$37.00	$12,506	9,362 Direct	+3.75%	Acquired	-25.8% (price as of 2026-08-21)
April 28, 2015	TDC	A	5,663	—	—	9,024 Direct	+168.49%	Acquired	(price as of 2026-08-21)
March 31, 2015	TDC	A	284	$44.14	$12,536	3,361 Direct	+9.23%	Acquired	-37.8% (price as of 2026-08-21)
Feb. 27, 2015	701221	F	1,771	$121.99	$216,044	5,302 Direct	-25.04%	Disposed
Feb. 27, 2015	701221	A	5,149	—	—	7,073 Direct	+267.62%	Acquired
Feb. 25, 2015	701221	A	9,378	—	—	9,378 Direct	—	Acquired
Feb. 24, 2015	TDC	A	3,077	—	—	3,077 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 28, 2014	701221	F	988	$78.89	$77,943	1,924 Direct	-33.93%	Disposed
Feb. 28, 2014	701221	A	2,912	—	—	2,912 Direct	—	Acquired
Feb. 26, 2014	701221	A	13,810	—	—	13,810 Direct	—	Acquired
May 20, 2013	701221	A	11,331	—	—	11,331 Direct	—	Acquired

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
Feb. 27, 2019	CI	Employee Stock Option (Right to Buy)	Common Stock, $.01 Par Value (3,578)	$183.44	Feb. 27, 2029	3,578	Acquired
Feb. 28, 2018	701221	Employee Stock Option (Right to Buy)	Common Stock, $.25 Par Value (5,844)	$197.35	Feb. 28, 2028	5,844	Acquired
May 24, 2017	701221	Employee Stock Option (Right to Buy)	Common Stock, $.25 Par Value (2,836)	$139.22	March 1, 2026	2,836	Disposed
May 24, 2017	701221	Employee Stock Option (Right to Buy)	Common Stock, $.25 Par Value (4,603)	$78.04	Feb. 26, 2024	4,603	Disposed
May 24, 2017	701221	Employee Stock Option (Right to Buy)	Common Stock, $.25 Par Value (6,252)	$120.90	Feb. 25, 2025	6,252	Disposed
Feb. 28, 2017	701221	Employee Stock Option (Right to Buy)	Common Stock, $.25 Par Value (7,711)	$149.14	Feb. 28, 2027	7,711	Acquired
Nov. 15, 2016	701221	Employee Stock Option (Right to Buy)	Common Stock, $.25 Par Value (11,331)	$67.33	May 20, 2023	11,331	Disposed
Nov. 15, 2016	701221	Employee Stock Option (Right to Buy)	Common Stock, $.25 Par Value (9,207)	$78.04	Feb. 26, 2024	9,207	Disposed
March 1, 2016	701221	Employee Stock Option (Right to Buy)	Common Stock, $.25 Par Value (8,509)	$139.22	March 1, 2026	8,509	Acquired
Feb. 25, 2015	701221	Employee Stock Option (Right to Buy)	Common Stock, $.25 Par Value (9,378)	$120.90	Feb. 25, 2025	9,378	Acquired
Feb. 26, 2014	701221	Employee Stock Option (Right to Buy)	Common Stock, $.25 Par Value (13,810)	$78.04	Feb. 26, 2024	13,810	Acquired
May 20, 2013	701221	Employee Stock Option (Right to Buy)	Common Stock, $.25 Par Value (11,331)	$67.33	May 20, 2023	11,331	Acquired

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

Initial ownership (Form 3) 1 holding

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

Date	Ticker	Security	Shares	Ownership
Feb. 3, 2015	TDC	No Securities are Beneficially Owned	0	Direct