Laura K Nyquist

Insider

First SEC filing: Aug. 24, 2007 · Latest: Aug. 24, 2007

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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

TDC selling March 5, 2018

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 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
March 2, 2020	TDC	F	2,149	$20.87	$44,850	102,331 Direct	-2.06%	Disposed	31.5% (price as of 2026-08-21)
Feb. 10, 2020	TDC	F	5,326	$23.33	$124,256	104,480 Direct	-4.85%	Disposed	17.7% (price as of 2026-08-21)
March 1, 2019	TDC	A	14,215	—	—	109,806 Direct	+14.87%	Acquired	(price as of 2026-08-21)
Feb. 22, 2019	TDC	F	976	$46.89	$45,765	95,591 Direct	-1.01%	Disposed	-41.5% (price as of 2026-08-21)
Feb. 11, 2019	TDC	F	5,120	$46.28	$236,954	96,567 Direct	-5.04%	Disposed	-40.7% (price as of 2026-08-21)
Feb. 7, 2019	TDC	F	2,520	$45.86	$115,567	101,687 Direct	-2.42%	Disposed	-40.1% (price as of 2026-08-21)
Feb. 4, 2019	TDC	A	5,383	—	—	104,207 Direct	+5.45%	Acquired	(price as of 2026-08-21)
Dec. 3, 2018	TDC	F	1,285	$38.26	$49,164	98,824 Direct	-1.28%	Disposed	-28.3% (price as of 2026-08-21)
March 5, 2018	TDC	M	52,379	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
March 5, 2018	TDC	S	52,379	$41.52	$2,174,776	100,109 Direct	-34.35%	Disposed	-33.9% (price as of 2026-08-21)
March 5, 2018	TDC	M	52,379	$13.77	$721,259	152,488 Direct	+52.32%	Acquired	99.3% (price as of 2026-08-21)
Feb. 22, 2018	TDC	F	653	$36.61	$23,906	100,109 Direct	-0.65%	Disposed	-25.0% (price as of 2026-08-21)
Feb. 15, 2018	TDC	F	69	$40.10	$2,767	100,762 Direct	-0.07%	Disposed	-31.5% (price as of 2026-08-21)
Feb. 15, 2018	TDC	F	3,516	$35.00	$123,060	100,831 Direct	-3.37%	Disposed	-21.6% (price as of 2026-08-21)
Feb. 9, 2018	TDC	A	33,864	—	—	104,347 Direct	+48.05%	Acquired	(price as of 2026-08-21)
Dec. 1, 2017	TDC	F	945	$37.73	$35,655	70,483 Direct	-1.32%	Disposed	-27.2% (price as of 2026-08-21)
Dec. 1, 2017	TDC	F	635	$37.73	$23,959	71,428 Direct	-0.88%	Disposed	-27.2% (price as of 2026-08-21)
Nov. 27, 2017	TDC	A	11,864	—	—	72,063 Direct	+19.71%	Acquired	(price as of 2026-08-21)
Feb. 22, 2017	TDC	F	705	$31.40	$22,137	60,199 Direct	-1.16%	Disposed	-12.6% (price as of 2026-08-21)
Feb. 22, 2017	TDC	A	6,452	—	—	60,904 Direct	+11.85%	Acquired	(price as of 2026-08-21)
Feb. 17, 2017	TDC	M	17,763	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Feb. 17, 2017	TDC	M	6,129	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Feb. 17, 2017	TDC	S	17,763	$31.03	$551,186	54,452 Direct	-24.60%	Disposed	-11.5% (price as of 2026-08-21)
Feb. 17, 2017	TDC	M	17,763	$27.98	$497,009	72,215 Direct	+32.62%	Acquired	-1.9% (price as of 2026-08-21)
Feb. 17, 2017	TDC	S	6,129	$31.00	$189,999	54,452 Direct	-10.12%	Disposed	-11.5% (price as of 2026-08-21)
Feb. 17, 2017	TDC	M	6,129	$24.87	$152,428	60,581 Direct	+11.26%	Acquired	10.4% (price as of 2026-08-21)
Feb. 13, 2017	TDC	F	74	$29.94	$2,216	54,452 Direct	-0.14%	Disposed	-8.3% (price as of 2026-08-21)
Dec. 5, 2016	TDC	F	1,120	$27.23	$30,498	54,526 Direct	-2.01%	Disposed	0.8% (price as of 2026-08-21)
Dec. 1, 2016	TDC	F	945	$26.42	$24,967	55,646 Direct	-1.67%	Disposed	3.9% (price as of 2026-08-21)
Dec. 1, 2016	TDC	F	635	$26.42	$16,777	56,591 Direct	-1.11%	Disposed	3.9% (price as of 2026-08-21)
Feb. 7, 2016	TDC	F	74	$23.12	$1,711	57,226 Direct	-0.13%	Disposed	18.7% (price as of 2026-08-21)
Feb. 7, 2016	TDC	A	571	—	—	57,300 Direct	+1.01%	Acquired	(price as of 2026-08-21)
Jan. 15, 2016	TDC	M	3,319	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Jan. 15, 2016	TDC	S 10b5-1	3,319	$22.21	$73,715	56,729 Direct	-5.53%	Disposed	23.6% (price as of 2026-08-21)
Jan. 15, 2016	TDC	M	3,319	$20.84	$69,168	60,048 Direct	+5.85%	Acquired	31.7% (price as of 2026-08-21)
Dec. 1, 2015	TDC	A	15,778	—	—	15,778 Direct	—	Acquired	(price as of 2026-08-21)
Dec. 1, 2015	TDC	A	8,499	—	—	56,729 Direct	+17.62%	Acquired	(price as of 2026-08-21)
Dec. 1, 2015	TDC	F	634	$30.63	$19,419	48,230 Direct	-1.30%	Disposed	-10.4% (price as of 2026-08-21)
Nov. 27, 2015	TDC	F	786	$29.80	$23,423	48,864 Direct	-1.58%	Disposed	-7.9% (price as of 2026-08-21)
Feb. 27, 2015	TDC	M	7,769	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Feb. 27, 2015	TDC	S	7,769	$44.63	$346,730	49,650 Direct	-13.53%	Disposed	-38.5% (price as of 2026-08-21)
Feb. 27, 2015	TDC	M	7,769	$21.01	$163,227	57,419 Direct	+15.65%	Acquired	30.7% (price as of 2026-08-21)
Feb. 11, 2015	TDC	F	416	$43.83	$18,233	49,650 Direct	-0.83%	Disposed	-37.4% (price as of 2026-08-21)
Dec. 1, 2014	TDC	A	14,118	—	—	14,118 Direct	—	Acquired	(price as of 2026-08-21)
Dec. 1, 2014	TDC	A	5,705	—	—	50,066 Direct	+12.86%	Acquired	(price as of 2026-08-21)
Dec. 1, 2014	TDC	F	911	$44.43	$40,476	44,361 Direct	-2.01%	Disposed	-38.2% (price as of 2026-08-21)
Feb. 11, 2014	TDC	F	417	$43.30	$18,056	45,272 Direct	-0.91%	Disposed	-36.6% (price as of 2026-08-21)
Dec. 3, 2013	TDC	A	17,408	—	—	17,408 Direct	—	Acquired	(price as of 2026-08-21)
Dec. 3, 2013	TDC	A	3,358	—	—	45,689 Direct	+7.93%	Acquired	(price as of 2026-08-21)
Dec. 2, 2013	TDC	F	1,173	$45.81	$53,735	42,331 Direct	-2.70%	Disposed	-40.1% (price as of 2026-08-21)
Dec. 2, 2013	TDC	F	1,980	$45.81	$90,704	43,504 Direct	-4.35%	Disposed	-40.1% (price as of 2026-08-21)
Feb. 14, 2013	TDC	F	1,629	$62.15	$101,242	45,484 Direct	-3.46%	Disposed	-55.8% (price as of 2026-08-21)
Feb. 11, 2013	TDC	F	417	$62.26	$25,962	47,113 Direct	-0.88%	Disposed	-55.9% (price as of 2026-08-21)
Feb. 11, 2013	TDC	A	3,230	—	—	47,530 Direct	+7.29%	Acquired	(price as of 2026-08-21)
Nov. 27, 2012	TDC	A	13,061	—	—	13,061 Direct	—	Acquired	(price as of 2026-08-21)
Nov. 27, 2012	TDC	A	2,356	—	—	44,300 Direct	+5.62%	Acquired	(price as of 2026-08-21)
Aug. 7, 2012	TDC	M	20,000	—	—	52,379 Direct	-27.63%	Disposed	(price as of 2026-08-21)
Aug. 7, 2012	TDC	S	20,000	$73.00	$1,460,000	41,944 Direct	-32.29%	Disposed	-62.4% (price as of 2026-08-21)
Aug. 7, 2012	TDC	M	20,000	$13.77	$275,400	61,944 Direct	+47.68%	Acquired	99.3% (price as of 2026-08-21)
Feb. 23, 2012	TDC	M	15,000	—	—	72,379 Direct	-17.17%	Disposed	(price as of 2026-08-21)
Feb. 23, 2012	TDC	S	15,000	$64.00	$960,000	41,944 Direct	-26.34%	Disposed	-57.1% (price as of 2026-08-21)
Feb. 23, 2012	TDC	M	15,000	$13.77	$206,550	56,944 Direct	+35.76%	Acquired	99.3% (price as of 2026-08-21)
Feb. 14, 2012	TDC	F	1,640	$62.16	$101,942	41,944 Direct	-3.76%	Disposed	-55.8% (price as of 2026-08-21)
Feb. 10, 2012	TDC	A	5,936	—	—	43,584 Direct	+15.77%	Acquired	(price as of 2026-08-21)
Nov. 29, 2011	TDC	A	15,603	—	—	15,603 Direct	—	Acquired	(price as of 2026-08-21)
Nov. 29, 2011	TDC	A	2,730	—	—	37,648 Direct	+7.82%	Acquired	(price as of 2026-08-21)
March 8, 2011	TDC	S	5,248	$50.25	$263,712	34,918 Direct	-13.07%	Disposed	-45.4% (price as of 2026-08-21)
Feb. 18, 2011	TDC	F	2,639	$48.29	$127,437	40,166 Direct	-6.17%	Disposed	-43.2% (price as of 2026-08-21)
Feb. 14, 2011	TDC	A	17,640	—	—	42,805 Direct	+70.10%	Acquired	(price as of 2026-08-21)
Nov. 30, 2010	TDC	A	19,910	—	—	19,910 Direct	—	Acquired	(price as of 2026-08-21)
Nov. 30, 2010	TDC	A	3,398	—	—	25,165 Direct	+15.61%	Acquired	(price as of 2026-08-21)
Nov. 8, 2010	TDC	M	7,421	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Nov. 8, 2010	TDC	M	4,452	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Nov. 8, 2010	TDC	S	7,421	$40.96	$303,964	21,767 Direct	-25.42%	Disposed	-33.0% (price as of 2026-08-21)
Nov. 8, 2010	TDC	M	7,421	$12.21	$90,610	29,188 Direct	+34.09%	Acquired	124.8% (price as of 2026-08-21)
Nov. 8, 2010	TDC	S	4,452	$40.96	$182,354	21,767 Direct	-16.98%	Disposed	-33.0% (price as of 2026-08-21)
Nov. 8, 2010	TDC	M	4,452	$7.37	$32,811	26,219 Direct	+20.45%	Acquired	272.5% (price as of 2026-08-21)
Feb. 19, 2010	TDC	F	1,174	$28.72	$33,717	21,767 Direct	-5.12%	Disposed	-4.4% (price as of 2026-08-21)
Feb. 12, 2010	TDC	A	3,134	—	—	22,941 Direct	+15.82%	Acquired	(price as of 2026-08-21)
Dec. 1, 2009	TDC	A	23,313	—	—	23,313 Direct	—	Acquired	(price as of 2026-08-21)
Dec. 1, 2009	TDC	F	1,388	$30.68	$42,584	19,807 Direct	-6.55%	Disposed	-10.5% (price as of 2026-08-21)
March 6, 2009	TDC	F	195	$15.46	$3,015	21,195 Direct	-0.91%	Disposed	77.6% (price as of 2026-08-21)
March 6, 2009	TDC	F	84	$14.66	$1,231	21,390 Direct	-0.39%	Disposed	87.2% (price as of 2026-08-21)
Feb. 27, 2009	TDC	A	504	—	—	21,474 Direct	+2.40%	Acquired	(price as of 2026-08-21)
Dec. 31, 2008	TDC	F	97	$14.83	$1,439	20,970 Direct	-0.46%	Disposed	85.1% (price as of 2026-08-21)
Dec. 2, 2008	TDC	A	87,379	—	—	87,379 Direct	—	Acquired	(price as of 2026-08-21)
Dec. 2, 2008	TDC	A	91,837	—	—	91,837 Direct	—	Acquired	(price as of 2026-08-21)
March 10, 2008	TDC	F	77	$25.98	$2,000	21,067 Direct	-0.36%	Disposed	5.7% (price as of 2026-08-21)
March 10, 2008	TDC	F	88	$25.98	$2,286	21,056 Direct	-0.42%	Disposed	5.7% (price as of 2026-08-21)
Nov. 20, 2007	TDC	P	1,500	$24.09	$36,135	21,143 Direct	+7.64%	Acquired	13.9% (price as of 2026-08-21)
Nov. 20, 2007	TDC	P	400	$24.11	$9,644	19,643 Direct	+2.08%	Acquired	13.9% (price as of 2026-08-21)
Nov. 20, 2007	TDC	P	200	$24.12	$4,824	19,243 Direct	+1.05%	Acquired	13.8% (price as of 2026-08-21)
Nov. 20, 2007	TDC	P	100	$24.08	$2,408	19,043 Direct	+0.53%	Acquired	14.0% (price as of 2026-08-21)
Nov. 20, 2007	TDC	P	400	$24.13	$9,652	18,943 Direct	+2.16%	Acquired	13.8% (price as of 2026-08-21)
Nov. 20, 2007	TDC	P	2,400	$24.10	$57,840	18,543 Direct	+14.87%	Acquired	13.9% (price as of 2026-08-21)
Oct. 30, 2007	TDC	F	309	$28.26	$8,732	16,143 Direct	-1.88%	Disposed	-2.9% (price as of 2026-08-21)
Oct. 24, 2007	TDC	A	883	—	—	16,452 Direct	+5.67%	Acquired	(price as of 2026-08-21)
Oct. 24, 2007	TDC	A	298	—	—	15,569 Direct	+1.95%	Acquired	(price as of 2026-08-21)
Oct. 1, 2007	TDC	A	6,129	—	—	6,129 Direct	—	Acquired	(price as of 2026-08-21)
Oct. 1, 2007	TDC	A	3,319	—	—	3,319 Direct	—	Acquired	(price as of 2026-08-21)

Showing latest 100 of 105 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
March 5, 2018	TDC	Employee Stock Options	Common Stock (52,379)	$13.77	Dec. 1, 2018	52,379	Disposed
Feb. 17, 2017	TDC	Employee Stock Options	Common Stock (17,763)	$27.98	Sept. 30, 2017	17,763	Disposed
Feb. 17, 2017	TDC	Employee Stock Options	Common Stock (6,129)	$24.87	Feb. 28, 2017	6,129	Disposed
Jan. 15, 2016	TDC	Employee Stock Options	Common Stock (3,319)	$20.84	Feb. 13, 2016	3,319	Disposed
Dec. 1, 2015	TDC	Employee Stock Options	Common Stock (15,778)	$30.63	Dec. 1, 2025	15,778	Acquired
Feb. 27, 2015	TDC	Employee Stock Option	Common Stock (7,769)	$21.01	March 1, 2015	7,769	Disposed
Dec. 1, 2014	TDC	Employee Stock Options (right to buy)	Common Stock (14,118)	$44.43	Dec. 1, 2024	14,118	Acquired
Dec. 3, 2013	TDC	Employee Stock Options (right to buy)	Common Stock (17,408)	$45.35	Dec. 3, 2023	17,408	Acquired
Nov. 27, 2012	TDC	Employee Stock Option (right to buy)	Common Stock (13,061)	$61.55	Nov. 27, 2022	13,061	Acquired
Aug. 7, 2012	TDC	Employee Stock Options	Common Stock (20,000)	$13.77	Dec. 1, 2018	20,000	Disposed
Feb. 23, 2012	TDC	Employee Stock Options	Common Stock (15,000)	$13.77	Dec. 1, 2018	15,000	Disposed
Nov. 29, 2011	TDC	Employee Stock Option (right to buy)	Common Stock (15,603)	$50.70	Nov. 29, 2021	15,603	Acquired
Nov. 30, 2010	TDC	Employee Stock Option (right to buy)	Common Stock (19,910)	$41.09	Nov. 30, 2020	19,910	Acquired
Nov. 8, 2010	TDC	Employee Stock Option	Common Stock (7,421)	$12.21	March 1, 2014	7,421	Disposed
Nov. 8, 2010	TDC	Employee Stock Option	Common Stock (4,452)	$7.37	Aug. 4, 2013	4,452	Disposed
Dec. 1, 2009	TDC	Employee Stock Option (right to buy)	Common Stock (23,313)	$30.68	Dec. 1, 2019	23,313	Acquired
Dec. 2, 2008	TDC	Employee Stock Option (right to buy) [F1]	Common Stock (87,379)	$13.77	Dec. 2, 2018	87,379	Acquired
Dec. 2, 2008	TDC	Employee Stock Option (right to buy)	Common Stock (91,837)	$13.77	Dec. 2, 2018	91,837	Acquired
Oct. 1, 2007	TDC	Employee Stock Option	Common Stock (6,129)	$24.87	March 1, 2017	6,129	Acquired
Oct. 1, 2007	TDC	Employee Stock Option	Common Stock (3,319)	$20.84	Feb. 13, 2016	3,319	Acquired
Oct. 1, 2007	TDC	Employee Stock Option	Common Stock (7,769)	$21.01	March 1, 2015	7,769	Acquired
Oct. 1, 2007	TDC	Employee Stock Option	Common Stock (7,421)	$12.21	March 1, 2014	7,421	Acquired
Oct. 1, 2007	TDC	Employee Stock Option	Common Stock (4,452)	$7.37	Aug. 4, 2013	4,452	Acquired
Oct. 1, 2007	TDC	Employee Stock Option	Common Stock (17,763)	$27.98	Oct. 1, 2017	17,763	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
Aug. 24, 2007	TDC	No Securities Beneficially Owned	0	Direct