Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 62 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

62 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Dec. 4, 2014 ENTG S 5,131 $13.70 $70,295 39,742 Direct -11.43% Disposed 1118.2% (price as of 2026-10-06)
July 31, 2013 ENTG S 16,822 $9.50 $159,809 0 Indirect -100.00% Disposed 1656.7% (price as of 2026-10-06)
July 30, 2013 ENTG S 3,500 $9.48 $33,180 31,090 Direct -10.12% Disposed 1660.4% (price as of 2026-10-06)
July 30, 2013 ENTG S 27,193 $9.48 $257,790 31,090 Direct -46.66% Disposed 1660.4% (price as of 2026-10-06)
July 30, 2013 ENTG S 14,272 $9.48 $135,299 31,090 Direct -31.46% Disposed 1660.4% (price as of 2026-10-06)
July 30, 2013 ENTG S 7,057 $9.48 $66,900 31,090 Direct -18.50% Disposed 1660.4% (price as of 2026-10-06)
April 30, 2013 ENTG S 14,305 $9.50 $135,898 31,090 Direct -31.51% Disposed 1656.7% (price as of 2026-10-06)
Feb. 20, 2013 ENTG S 8,381 $9.80 $82,134 45,395 Direct -15.59% Disposed 1603.0% (price as of 2026-10-06)
Jan. 28, 2013 ENTG S 10b5-1 30,000 $10.00 $300,000 53,254 Direct -36.03% Disposed 1568.9% (price as of 2026-10-06)
Jan. 28, 2013 ENTG S 10b5-1 11,622 $10.00 $116,220 41,632 Direct -21.82% Disposed 1568.9% (price as of 2026-10-06)
Dec. 19, 2012 ENTG S 10b5-1 460 $9.16 $4,214 53,254 Direct -0.86% Disposed 1721.9% (price as of 2026-10-06)
Feb. 22, 2012 ENTG S 10b5-1 7,523 $9.14 $68,760 66,460 Direct -10.17% Disposed 1725.9% (price as of 2026-10-06)
Feb. 17, 2012 ENTG S 7,375 $9.60 $70,800 73,983 Direct -9.06% Disposed 1638.4% (price as of 2026-10-06)
Feb. 16, 2012 ENTG S 3,500 $9.53 $33,355 74,772 Direct -4.47% Disposed 1651.2% (price as of 2026-10-06)
Feb. 16, 2012 ENTG S 789 $9.53 $7,519 73,983 Direct -1.06% Disposed 1651.2% (price as of 2026-10-06)
Dec. 20, 2011 ENTG S 10b5-1 461 $8.48 $3,909 63,769 Direct -0.72% Disposed 1868.0% (price as of 2026-10-06)
Nov. 1, 2011 ENTG S 3,500 $8.68 $30,380 64,230 Direct -5.17% Disposed 1822.7% (price as of 2026-10-06)
Nov. 1, 2011 ENTG S 7,374 $8.68 $64,006 64,230 Direct -10.30% Disposed 1822.7% (price as of 2026-10-06)
Nov. 1, 2011 ENTG S 13,597 $8.68 $118,022 64,230 Direct -17.47% Disposed 1822.7% (price as of 2026-10-06)
May 10, 2011 ENTG S 10,940 $9.00 $98,460 64,230 Direct -14.55% Disposed 1754.3% (price as of 2026-10-06)
May 9, 2011 ENTG S 30,000 $8.75 $262,500 75,170 Direct -28.53% Disposed 1807.3% (price as of 2026-10-06)
Feb. 24, 2011 ENTG S 10b5-1 58 $8.42 $488 75,170 Direct -0.08% Disposed 1882.1% (price as of 2026-10-06)
Feb. 23, 2011 ENTG S 10b5-1 5,361 $8.40 $45,032 77,259 Direct -6.49% Disposed 1886.8% (price as of 2026-10-06)
Feb. 23, 2011 ENTG S 10b5-1 2,031 $8.40 $17,060 75,228 Direct -2.63% Disposed 1886.8% (price as of 2026-10-06)
Feb. 1, 2011 ENTG S 10b5-1 14,746 $8.25 $121,654 56,687 Direct -20.64% Disposed 1922.9% (price as of 2026-10-06)
Dec. 20, 2010 ENTG S 10b5-1 472 $7.37 $3,479 58,687 Direct -0.80% Disposed 2164.5% (price as of 2026-10-06)
Dec. 13, 2010 ENTG S 10b5-1 6,250 $7.25 $45,312 59,159 Direct -9.56% Disposed 2201.9% (price as of 2026-10-06)
Dec. 13, 2010 ENTG S 10b5-1 6,250 $7.25 $45,312 59,159 Direct -9.56% Disposed 2201.9% (price as of 2026-10-06)
Nov. 8, 2010 ENTG S 10b5-1 30,000 $6.57 $197,100 77,616 Direct -27.88% Disposed 2440.2% (price as of 2026-10-06)
Nov. 8, 2010 ENTG S 10b5-1 3,500 $6.50 $22,750 77,616 Direct -4.31% Disposed 2467.5% (price as of 2026-10-06)
Nov. 8, 2010 ENTG S 10b5-1 18,457 $6.55 $120,893 59,159 Direct -23.78% Disposed 2447.9% (price as of 2026-10-06)
Nov. 8, 2010 ENTG S 10b5-1 30,000 $6.57 $197,100 157,711 Direct -15.98% Disposed 2440.2% (price as of 2026-10-06)
Nov. 8, 2010 ENTG S 10b5-1 3,500 $6.50 $22,750 157,711 Direct -2.17% Disposed 2467.5% (price as of 2026-10-06)
Nov. 8, 2010 ENTG S 10b5-1 18,457 $6.55 $120,893 59,159 Direct -23.78% Disposed 2447.9% (price as of 2026-10-06)
Nov. 8, 2010 ENTG S 10b5-1 30,000 $6.57 $197,100 157,711 Direct -15.98% Disposed 2440.2% (price as of 2026-10-06)
Nov. 8, 2010 ENTG S 10b5-1 3,500 $6.50 $22,750 157,711 Direct -2.17% Disposed 2467.5% (price as of 2026-10-06)
Nov. 8, 2010 ENTG S 10b5-1 18,457 $6.55 $120,893 139,254 Direct -11.70% Disposed 2447.9% (price as of 2026-10-06)

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.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Dec. 3, 2014 ENTG Employee Stock Option (Right to Buy) Common Stock (7,136) $8.76 Feb. 19, 2018 7,136 Disposed
Dec. 3, 2014 ENTG Employee Stock Option (Right to Buy) Common Stock (7,057) $9.27 Feb. 19, 2019 7,057 Disposed
Dec. 3, 2014 ENTG Employee Stock Option (Right to Buy) Common Stock (11,843) $9.88 Feb. 19, 2020 11,843 Disposed
Feb. 11, 2014 ENTG Employee Stock Option (Right to Buy) Common Stock (60,764) $11.71 Feb. 19, 2021 60,764 Acquired
July 30, 2013 ENTG Employee Stock Option (Right to Buy) Common Stock (3,500) $2.10 Dec. 16, 2015 3,500 Disposed
July 30, 2013 ENTG Employee Stock Option (Right to Buy) Common Stock (27,193) $5.40 Feb. 19, 2017 27,193 Disposed
July 30, 2013 ENTG Employee Stock Option (Right to Buy) Common Stock (14,272) $8.76 Feb. 19, 2018 14,272 Disposed
July 30, 2013 ENTG Employee Stock Option (Right to Buy) Common Stock (7,057) $9.27 Feb. 19, 2019 7,057 Disposed
Feb. 12, 2013 ENTG Employee Stock Option (Right to Buy) Common Stock (47,372) $9.88 Feb. 19, 2020 47,372 Acquired
Jan. 28, 2013 ENTG Employee Stock Option (Right to Buy) Common Stock (30,000) $1.13 Feb. 19, 2016 30,000 Disposed
Feb. 17, 2012 ENTG Employee Stock Option (Right to Buy) Common Stock (7,375) $8.37 Oct. 15, 2014 7,375 Disposed
Feb. 16, 2012 ENTG Employee Stock Option (Right to Buy) Common Stock (3,500) $2.10 Feb. 16, 2015 3,500 Disposed
Feb. 15, 2012 ENTG Employee Stock Option (Right to Buy) Common Stock (28,229) $9.27 Feb. 19, 2019 28,229 Acquired
Feb. 15, 2012 ENTG Employee Stock Option (Right to Buy) Common Stock (28,229) $9.27 Feb. 19, 2019 28,229 Acquired
Nov. 1, 2011 ENTG Employee Stock Option (Right to Buy) Common Stock (3,500) $2.10 Feb. 16, 2015 3,500 Disposed
Nov. 1, 2011 ENTG Employee Stock Option (Right to Buy) Common Stock (7,374) $7.07 Feb. 21, 2015 7,374 Disposed
Nov. 1, 2011 ENTG Employee Stock Option (Right to Buy) Common Stock (13,597) $5.40 Feb. 19, 2017 13,597 Disposed
May 9, 2011 ENTG Common Stock Common Stock (30,000) $1.13 Feb. 19, 2016 30,000 Disposed
Feb. 22, 2011 ENTG Employee Stock Option (Right to Buy) Common Stock (28,544) $8.76 Feb. 19, 2018 28,544 Acquired
Feb. 1, 2011 ENTG Common Stock Common Stock (14,746) $7.07 Feb. 21, 2015 14,746 Disposed
Dec. 13, 2010 ENTG Employee Stock Option (Right to Buy) Common Stock (6,250) $5.90 Oct. 15, 2012 6,250 Disposed
Dec. 13, 2010 ENTG Employee Stock Option (Right to Buy) Common Stock (6,250) $5.90 Oct. 15, 2012 6,250 Disposed
Nov. 8, 2010 ENTG Employee Stock Option (Right to Buy) Common Stock (30,000) $1.13 Feb. 19, 2016 30,000 Disposed
Nov. 8, 2010 ENTG Employee Stock Option (Right to Buy) Common Stock (3,500) $2.10 Dec. 16, 2015 3,500 Disposed
Nov. 8, 2010 ENTG Employee Stock Option (Right to Buy) Common Stock (30,000) $1.13 Feb. 19, 2016 30,000 Disposed
Nov. 8, 2010 ENTG Employee Stock Option (Right to Buy) Common Stock (3,500) $2.10 Dec. 16, 2015 3,500 Disposed
Nov. 8, 2010 ENTG Employee Stock Option (Right to Buy) Common Stock (30,000) $1.13 Feb. 19, 2016 30,000 Disposed
Nov. 8, 2010 ENTG Employee Stock Option (Right to Buy) Common Stock (3,500) $2.10 Dec. 16, 2015 3,500 Disposed

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

Initial ownership (Form 3) 27 holdings

07

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

DateTickerSecuritySharesOwnership
Nov. 17, 2010 ENTG Common Stock 77,616 Direct
Nov. 17, 2010 ENTG Common Stock 16,822 Indirect
Nov. 17, 2010 ENTG Employee Stock Option (right to buy)→ Common Stock (300) 300 Direct
Nov. 17, 2010 ENTG Employee Stock Option (right to buy)→ Common Stock (6,250) 6,250 Direct
Nov. 17, 2010 ENTG Employee Stock Option (right to buy)→ Common Stock (3,000) 3,000 Direct
Nov. 17, 2010 ENTG Employee Stock Option (right to buy)→ Common Stock (25,000) 25,000 Direct
Nov. 17, 2010 ENTG Employee Stock Option (right to buy)→ Common Stock (6,875) 6,875 Direct
Nov. 17, 2010 ENTG Employee Stock Option (right to buy)→ Common Stock (500) 500 Direct
Nov. 17, 2010 ENTG Employee Stock Option (right to buy)→ Common Stock (22,120) 22,120 Direct
Nov. 17, 2010 ENTG Employee Stock Option (right to buy)→ Common Stock (14,000) 14,000 Direct
Nov. 17, 2010 ENTG Employee Stock Option (right to buy)→ Common Stock (90,000) 90,000 Direct
Nov. 17, 2010 ENTG Employee Stock Option (right to buy)→ Common Stock (40,790) 40,790 Direct
March 16, 2010 ENTG Employee Stock Option (right to buy)→ Common Stock · Direct
March 16, 2010 ENTG Employee Stock Option (right to buy)→ Common Stock · Direct
March 16, 2010 ENTG Employee Stock Option (right to buy)→ Common Stock · Direct
March 1, 2010 ENTG Common Stock 157,711 Direct
March 1, 2010 ENTG Common Stock 16,822 Indirect
March 1, 2010 ENTG Employee Stock Option (right to buy)→ Common Stock (300) 300 Direct
March 1, 2010 ENTG Employee Stock Option (right to buy)→ Common Stock (23,914) 23,914 Direct
March 1, 2010 ENTG Employee Stock Option (right to buy)→ Common Stock (3,000) 3,000 Direct
March 1, 2010 ENTG Employee Stock Option (right to buy)→ Common Stock (25,000) 25,000 Direct
March 1, 2010 ENTG Employee Stock Option (right to buy)→ Common Stock (27,500) 27,500 Direct
March 1, 2010 ENTG Employee Stock Option (right to buy)→ Common Stock (2,000) 2,000 Direct
March 1, 2010 ENTG Employee Stock Option (right to buy)→ Common Stock (22,120) 22,120 Direct
March 1, 2010 ENTG Employee Stock Option (right to buy)→ Common Stock (14,000) 14,000 Direct
March 1, 2010 ENTG Employee Stock Option (right to buy)→ Common Stock (90,000) 90,000 Direct
March 1, 2010 ENTG Employee Stock Option (right to buy)→ Common Stock (40,790) 40,790 Direct