Mark A Walsh

Insider

First SEC filing: Jan. 3, 2008 · Latest: Jan. 3, 2008

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.

Insider at

TTEK

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

No open-market trades on record; showing all filings.

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Dec. 31, 2007	TTEK	A	279	$17.86	$4,983	6,762 Direct	+4.30%	Acquired	918.5% (price as of 2026-08-19)
Dec. 5, 2007	TTEK	A	200	—	—	6,483 Direct	+3.18%	Acquired	(price as of 2026-08-19)
Nov. 16, 2007	TTEK	A	11,300	—	—	132,336 Direct	+9.34%	Acquired	(price as of 2026-08-19)
Nov. 16, 2007	TTEK	A	2,700	—	—	6,283 Direct	+75.36%	Acquired	(price as of 2026-08-19)
Dec. 5, 2006	TTEK	A	15,000	—	—	121,036 Direct	+14.15%	Acquired	(price as of 2026-08-19)
Dec. 5, 2006	TTEK	A	3,000	—	—	3,583 Direct	+514.58%	Acquired	(price as of 2026-08-19)
March 6, 2006	TTEK	A	20,000	—	—	106,036 Direct	+23.25%	Acquired	(price as of 2026-08-19)
Feb. 27, 2006	TTEK	M	5,833	—	—	86,036 Direct	+7.27%	Acquired	(price as of 2026-08-19)
Feb. 27, 2006	TTEK	M	167	—	—	91,869 Direct	+0.18%	Acquired	(price as of 2026-08-19)
Feb. 27, 2006	TTEK	M	13,721	—	—	92,036 Direct	+17.52%	Acquired	(price as of 2026-08-19)
Feb. 27, 2006	TTEK	M	1,696	—	—	105,757 Direct	+1.63%	Acquired	(price as of 2026-08-19)
Feb. 27, 2006	TTEK	M	3,750	—	—	107,453 Direct	+3.62%	Acquired	(price as of 2026-08-19)
Feb. 27, 2006	TTEK	M	977	—	—	111,203 Direct	+0.89%	Acquired	(price as of 2026-08-19)
Feb. 27, 2006	TTEK	M	5,833	$18.14	$105,811	583 Direct	-90.91%	Disposed	902.8% (price as of 2026-08-19)
Feb. 27, 2006	TTEK	M	167	$18.14	$3,029	583 Direct	-22.27%	Disposed	902.8% (price as of 2026-08-19)
Feb. 27, 2006	TTEK	M	13,721	$18.14	$248,899	583 Direct	-95.92%	Disposed	902.8% (price as of 2026-08-19)
Feb. 27, 2006	TTEK	M	1,696	$18.14	$30,765	583 Direct	-74.42%	Disposed	902.8% (price as of 2026-08-19)
Feb. 27, 2006	TTEK	M	3,750	$18.14	$68,025	583 Direct	-86.55%	Disposed	902.8% (price as of 2026-08-19)
Feb. 27, 2006	TTEK	M	977	$18.14	$17,723	583 Direct	-62.63%	Disposed	902.8% (price as of 2026-08-19)
Jan. 18, 2005	TTEK	A	30,000	—	—	112,180 Direct	+36.51%	Acquired	(price as of 2026-08-19)

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
Nov. 16, 2007	TTEK	EMPLOYEE STOCK OPTION (RIGHT TO BUY)	COMMON STOCK (11,300)	$23.68	Nov. 16, 2015	11,300	Acquired
Dec. 5, 2006	TTEK	EMPLOYEE STOCK OPTION (RIGHT TO BUY)	COMMON STOCK (15,000)	$17.71	Dec. 5, 2014	15,000	Acquired
March 6, 2006	TTEK	EMPLOYEE STOCK OPTION (RIGHT TO BUY)	COMMON STOCK (20,000)	$18.07	March 6, 2016	20,000	Acquired
Feb. 27, 2006	TTEK	STOCK OPTION	COMMON STOCK (5,833)	$11.80	Jan. 20, 2013	5,833	Acquired
Feb. 27, 2006	TTEK	STOCK OPTION	COMMON STOCK (167)	$11.80	Jan. 20, 2013	167	Acquired
Feb. 27, 2006	TTEK	STOCK OPTION	COMMON STOCK (13,721)	$12.84	Dec. 23, 2012	13,721	Acquired
Feb. 27, 2006	TTEK	STOCK OPTION	COMMON STOCK (1,696)	$12.84	Dec. 23, 2012	1,696	Acquired
Feb. 27, 2006	TTEK	STOCK OPTION	COMMON STOCK (3,750)	$8.72	Nov. 15, 2009	3,750	Acquired
Feb. 27, 2006	TTEK	STOCK OPTION	COMMON STOCK (977)	$10.05	Jan. 12, 2008	977	Acquired
Jan. 18, 2005	TTEK	EMPLOYEE STOCK OPTION (RIGHT TO BUY)	COMMON STOCK (30,000)	$15.79	Jan. 18, 2015	30,000	Acquired

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