Oliver Ratzesberger

Insider

First SEC filing: Feb. 10, 2016 · Latest: Feb. 10, 2016

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.
Initial holdings The stakes this person held when they first started reporting.

Insider at

TDC selling Feb. 27, 2017

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 20 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

20 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
March 1, 2019	TDC	A	41,999	—	—	121,896 Direct	+52.57%	Acquired	(price as of 2026-08-21)
Feb. 22, 2019	TDC	F	1,600	$46.89	$75,024	79,897 Direct	-1.96%	Disposed	-41.5% (price as of 2026-08-21)
Feb. 11, 2019	TDC	F	8,396	$46.28	$388,567	81,497 Direct	-9.34%	Disposed	-40.7% (price as of 2026-08-21)
Feb. 7, 2019	TDC	F	4,074	$45.86	$186,834	89,893 Direct	-4.34%	Disposed	-40.1% (price as of 2026-08-21)
Feb. 4, 2019	TDC	A	8,074	—	—	93,967 Direct	+9.40%	Acquired	(price as of 2026-08-21)
Dec. 3, 2018	TDC	F	3,400	$38.26	$130,084	85,893 Direct	-3.81%	Disposed	-28.3% (price as of 2026-08-21)
July 2, 2018	TDC	F	5,173	$41.01	$212,145	89,293 Direct	-5.48%	Disposed	-33.1% (price as of 2026-08-21)
Feb. 22, 2018	TDC	F	1,116	$36.61	$40,857	94,446 Direct	-1.17%	Disposed	-25.0% (price as of 2026-08-21)
Feb. 15, 2018	TDC	F	5,967	$35.00	$208,845	95,222 Direct	-5.90%	Disposed	-21.6% (price as of 2026-08-21)
Feb. 9, 2018	TDC	A	50,796	—	—	101,549 Direct	+100.08%	Acquired	(price as of 2026-08-21)
Feb. 9, 2018	TDC	A	50,436	—	—	101,189 Direct	+99.38%	Acquired	(price as of 2026-08-21)
Dec. 1, 2017	TDC	F	1,597	$37.73	$60,255	50,753 Direct	-3.05%	Disposed	-27.2% (price as of 2026-08-21)
Dec. 1, 2017	TDC	F	858	$37.73	$32,372	52,350 Direct	-1.61%	Disposed	-27.2% (price as of 2026-08-21)
Nov. 27, 2017	TDC	A	23,729	—	—	53,208 Direct	+80.49%	Acquired	(price as of 2026-08-21)
Feb. 27, 2017	TDC	S 10b5-1	1,925	$31.20	$60,060	28,805 Direct	-6.26%	Disposed	-12.0% (price as of 2026-08-21)
Feb. 22, 2017	TDC	F	1,301	$31.40	$40,851	30,730 Direct	-4.06%	Disposed	-12.6% (price as of 2026-08-21)
Feb. 22, 2017	TDC	A	9,678	—	—	32,031 Direct	+43.30%	Acquired	(price as of 2026-08-21)
Dec. 6, 2016	TDC	S 10b5-1	4,192	$27.20	$114,022	22,206 Direct	-15.88%	Disposed	0.9% (price as of 2026-08-21)
Dec. 5, 2016	TDC	F	2,524	$27.23	$68,729	26,398 Direct	-8.73%	Disposed	0.8% (price as of 2026-08-21)
Dec. 2, 2016	TDC	S 10b5-1	4,076	$26.32	$107,280	28,922 Direct	-12.35%	Disposed	4.3% (price as of 2026-08-21)
Dec. 1, 2016	TDC	F	1,597	$26.42	$42,193	32,988 Direct	-4.62%	Disposed	3.9% (price as of 2026-08-21)
Dec. 1, 2016	TDC	F	858	$26.42	$22,668	34,595 Direct	-2.42%	Disposed	3.9% (price as of 2026-08-21)
Sept. 2, 2016	TDC	S 10b5-1	2,015	$31.62	$63,714	35,453 Direct	-5.38%	Disposed	-13.2% (price as of 2026-08-21)
Sept. 1, 2016	TDC	F	1,214	$31.47	$38,205	37,468 Direct	-3.14%	Disposed	-12.8% (price as of 2026-08-21)

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.

Initial ownership (Form 3) 4 holdings

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

Date	Ticker	Security	Shares	Ownership
Feb. 10, 2016	TDC	Common Stock	37,842	Direct
Feb. 10, 2016	TDC	Employee Stock Options→ Common Stock (5,803)	5,803	Direct
Feb. 10, 2016	TDC	Employee Stock Options→ Common Stock (5,647)	5,647	Direct
Feb. 10, 2016	TDC	Employee Stock Options→ Common Stock (23,666)	23,666	Direct