Gregory B Graves

CIK 1208109 · View on SEC EDGAR ↗

Insider

First SEC filing: March 4, 2022 · Latest: March 4, 2022

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Insider at

Insider transactions

0 buys (P) 2 sells (S) Net: $-456,707 + 51 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

51 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
May 19, 2026 ACLS S 600 $142.51 $85,506 5,473 Direct -9.88% Disposed -12.4% (price as of 2026-08-20)
May 19, 2026 ACLS S 2,625 $141.41 $371,201 6,073 Direct -30.18% Disposed -11.7% (price as of 2026-08-20)
March 14, 2025 SKYT S 12,844 $8.11 $104,165 14,285 Direct -47.34% Disposed
May 21, 2024 SKYT S 5,432 $8.10 $43,999 14,844 Direct -26.79% Disposed
June 20, 2023 SKYT S 7,003 $9.25 $64,778 20,276 Direct -25.67% Disposed
Feb. 21, 2023 ENTG S 1,002 $84.41 $84,579 19,703 Direct -4.84% Disposed 69.0% (price as of 2026-08-20)
Feb. 21, 2023 ENTG S 1,810 $83.16 $150,520 20,705 Direct -8.04% Disposed 71.6% (price as of 2026-08-20)
Feb. 21, 2023 ENTG S 1,962 $82.14 $161,159 22,515 Direct -8.02% Disposed 73.7% (price as of 2026-08-20)
Feb. 21, 2023 ENTG S 3,299 $81.01 $267,252 24,477 Direct -11.88% Disposed 76.1% (price as of 2026-08-20)
Feb. 14, 2023 ENTG S 65 $86.97 $5,653 33,932 Direct -0.19% Disposed 64.0% (price as of 2026-08-20)
Feb. 14, 2023 ENTG S 709 $85.31 $60,485 33,997 Direct -2.04% Disposed 67.2% (price as of 2026-08-20)
Feb. 14, 2023 ENTG S 800 $84.39 $67,512 34,706 Direct -2.25% Disposed 69.1% (price as of 2026-08-20)
Feb. 14, 2023 ENTG S 1,100 $83.34 $91,674 35,506 Direct -3.00% Disposed 71.2% (price as of 2026-08-20)
Feb. 14, 2023 ENTG S 1,017 $82.30 $83,699 36,606 Direct -2.70% Disposed 73.3% (price as of 2026-08-20)
March 31, 2022 ENTG S 300 $136.83 $41,049 20,980 Direct -1.41% Disposed 4.3% (price as of 2026-08-20)
March 31, 2022 ENTG S 320 $135.38 $43,322 21,280 Direct -1.48% Disposed 5.4% (price as of 2026-08-20)
March 31, 2022 ENTG S 2,070 $134.74 $278,912 21,600 Direct -8.75% Disposed 5.9% (price as of 2026-08-20)
March 31, 2022 ENTG S 873 $133.73 $116,746 23,670 Direct -3.56% Disposed 6.7% (price as of 2026-08-20)
March 31, 2022 ENTG S 6,080 $132.75 $807,120 24,543 Direct -19.85% Disposed 7.5% (price as of 2026-08-20)
March 31, 2022 ENTG S 2,499 $131.63 $328,943 30,623 Direct -7.54% Disposed 8.4% (price as of 2026-08-20)
Feb. 22, 2022 ENTG S 300 $131.09 $39,327 20,980 Direct -1.41% Disposed 8.8% (price as of 2026-08-20)
Feb. 22, 2022 ENTG S 4,271 $130.40 $556,938 21,280 Direct -16.72% Disposed 9.4% (price as of 2026-08-20)
Feb. 22, 2022 ENTG S 2,348 $128.93 $302,728 25,551 Direct -8.42% Disposed 10.7% (price as of 2026-08-20)
Feb. 22, 2022 ENTG S 8,117 $128.29 $1,041,330 27,899 Direct -22.54% Disposed 11.2% (price as of 2026-08-20)
Feb. 22, 2022 ENTG S 11,194 $127.06 $1,422,310 36,016 Direct -23.71% Disposed 12.3% (price as of 2026-08-20)
Feb. 22, 2022 ENTG S 5,105 $126.22 $644,353 47,210 Direct -9.76% Disposed 13.0% (price as of 2026-08-20)
Aug. 20, 2021 ENTG S 4,500 $112.41 $505,845 25,344 Direct -15.08% Disposed 26.9% (price as of 2026-08-20)
April 12, 2021 ENTG S 200 $121.00 $24,200 33,844 Direct -0.59% Disposed 17.9% (price as of 2026-08-20)
April 12, 2021 ENTG S 610 $120.14 $73,285 34,044 Direct -1.76% Disposed 18.7% (price as of 2026-08-20)
April 12, 2021 ENTG S 15,971 $119.47 $1,908,055 34,654 Direct -31.55% Disposed 19.4% (price as of 2026-08-20)
April 12, 2021 ENTG S 3,547 $118.56 $420,532 50,625 Direct -6.55% Disposed 20.3% (price as of 2026-08-20)
Feb. 23, 2021 ENTG S 4,809 $101.60 $488,594 33,844 Direct -12.44% Disposed 40.4% (price as of 2026-08-20)
Feb. 22, 2021 ENTG S 7,608 $103.47 $787,200 38,653 Direct -16.45% Disposed 37.9% (price as of 2026-08-20)
Feb. 19, 2021 ENTG S 4,123 $105.27 $434,028 46,261 Direct -8.18% Disposed 35.5% (price as of 2026-08-20)
Feb. 19, 2021 ENTG S 6,000 $104.28 $625,680 50,384 Direct -10.64% Disposed 36.8% (price as of 2026-08-20)
Feb. 19, 2021 ENTG S 1,196 $105.54 $126,226 46,261 Direct -2.52% Disposed 35.2% (price as of 2026-08-20)
Feb. 19, 2021 ENTG S 9,477 $105.06 $995,654 47,457 Direct -16.65% Disposed 35.8% (price as of 2026-08-20)
Feb. 19, 2021 ENTG S 9,737 $104.22 $1,014,790 56,934 Direct -14.60% Disposed 36.9% (price as of 2026-08-20)
Feb. 19, 2021 ENTG S 200 $105.58 $21,116 46,261 Direct -0.43% Disposed 35.1% (price as of 2026-08-20)
Feb. 19, 2021 ENTG S 5,684 $105.18 $597,843 46,461 Direct -10.90% Disposed 35.6% (price as of 2026-08-20)
Feb. 19, 2021 ENTG S 7,103 $104.26 $740,559 52,145 Direct -11.99% Disposed 36.8% (price as of 2026-08-20)
Feb. 25, 2020 ENTG S 10b5-1 100 $54.01 $5,401 39,276 Direct -0.25% Disposed 164.1% (price as of 2026-08-20)
Feb. 25, 2020 ENTG S 10b5-1 19,487 $53.32 $1,039,047 39,376 Direct -33.11% Disposed 167.6% (price as of 2026-08-20)
Feb. 20, 2020 ENTG S 10b5-1 22,029 $57.46 $1,265,786 58,863 Direct -27.23% Disposed 148.3% (price as of 2026-08-20)
Feb. 19, 2020 ENTG S 10b5-1 8,616 $57.82 $498,177 58,863 Direct -12.77% Disposed 146.7% (price as of 2026-08-20)
Feb. 19, 2020 ENTG S 10b5-1 4,371 $57.09 $249,540 67,479 Direct -6.08% Disposed 149.9% (price as of 2026-08-20)
July 29, 2019 ENTG S 10b5-1 25,974 $45.00 $1,168,830 48,547 Direct -34.85% Disposed 217.0% (price as of 2026-08-20)
May 7, 2019 ENTG S 19,314 $40.03 $773,139 48,547 Direct -28.46% Disposed 256.4% (price as of 2026-08-20)
May 6, 2019 ENTG S 10,686 $41.03 $438,447 67,861 Direct -13.60% Disposed 247.7% (price as of 2026-08-20)

Showing latest 100 of 409 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
Jan. 31, 2023 ENTG Employee Stock Option (Right to Buy) Common Stock (23,164) $80.71 Feb. 19, 2030 23,164 Acquired
March 31, 2022 ENTG Employee Stock Option (Right to Buy) Common Stock (12,142) $55.72 Feb. 19, 2027 12,142 Disposed
Feb. 22, 2022 ENTG Employee Stock Option (Right to Buy) Common Stock (10,123) $33.33 Feb. 19, 2026 10,123 Disposed
Feb. 22, 2022 ENTG Employee Stock Option (Right to Buy) Common Stock (10,205) $31.10 Feb. 19, 2025 10,205 Disposed
Feb. 1, 2022 ENTG Employee Stock Option (Right to Buy) Common Stock (14,492) $128.44 Feb. 19, 2029 14,492 Acquired
April 12, 2021 ENTG Employee Stock Option (Right to Buy) Common Stock (10,123) $33.33 Feb. 19, 2026 10,123 Disposed
April 12, 2021 ENTG Employee Stock Option (Right to Buy) Common Stock (10,205) $31.10 Feb. 19, 2025 10,205 Disposed
Feb. 19, 2021 ENTG Employee Stock Option (Right to Buy) Common Stock (10,123) $33.33 Feb. 19, 2026 10,123 Disposed
Feb. 19, 2021 ENTG Employee Stock Option (Right to Buy) Common Stock (20,410) $31.10 Feb. 19, 2025 20,410 Disposed
Feb. 19, 2021 ENTG Employee Stock Option (Right to Buy) Common Stock (12,987) $21.60 Feb. 19, 2024 12,987 Disposed
Feb. 2, 2021 ENTG Employee Stock Option (Right to Buy) Common Stock (18,584) $98.11 Feb. 19, 2028 18,584 Acquired
Feb. 20, 2020 ENTG Common Stock Common Stock (22,029) $12.20 Feb. 19, 2023 22,029 Disposed
Feb. 19, 2020 ENTG Employee Stock Option (Right to Buy) Common Stock (12,987) $21.60 Feb. 19, 2024 12,987 Disposed
Feb. 4, 2020 ENTG Employee Stock Option (Right to Buy) Common Stock (24,284) $55.72 Feb. 19, 2027 24,284 Acquired
July 29, 2019 ENTG Employee Stock Option (Right to Buy) Common Stock (25,974) $21.60 Feb. 19, 2024 25,974 Disposed
May 9, 2019 PLUG Stock Option (right to buy) [F2] Common Stock (27,056) $2.31 May 9, 2029 27,056 Acquired
Feb. 19, 2019 ENTG Employee Stock Option (Right to Buy) Common Stock (22,029) $12.20 Feb. 19, 2023 22,029 Disposed
Feb. 19, 2019 ENTG Employee Stock Option (Right to Buy) Common Stock (15,138) $13.49 Feb. 19, 2022 15,138 Disposed
Feb. 5, 2019 ENTG Employee Stock Option (Right to Buy) Common Stock (40,492) $33.33 Feb. 19, 2026 40,492 Acquired
June 5, 2018 ENTG Employee Stock Option (Right to Buy) Common Stock (24,318) $11.71 Feb. 19, 2021 24,318 Disposed
May 16, 2018 PLUG Common Stock Options [F2] Common Stock (29,621) $2.11 May 16, 2028 29,621 Acquired
Feb. 20, 2018 ENTG Employee Stock Option (Right to Buy) Common Stock (22,029) $12.20 Feb. 19, 2023 22,029 Disposed
Feb. 20, 2018 ENTG Employee Stock Option (Right to Buy) Common Stock (15,138) $13.49 Feb. 19, 2022 15,138 Disposed
Feb. 12, 2018 ENTG Employee Stock Option (Right to Buy) Common Stock (40,820) $31.10 Feb. 19, 2025 40,820 Acquired
July 27, 2017 ENTG Employee Stock Option (Right to Buy) Common Stock (18,812) $13.49 Feb. 19, 2022 18,812 Disposed
July 26, 2017 ENTG Employee Stock Option (Right to Buy) Common Stock (900) $13.49 Feb. 19, 2022 900 Disposed
July 20, 2017 ENTG Employee Stock Option (Right to Buy) Common Stock (10,564) $13.49 Feb. 19, 2022 10,564 Disposed
July 20, 2017 ENTG Employee Stock Option (Right to Buy) Common Stock (17,121) $12.20 Feb. 19, 2023 17,121 Disposed
July 19, 2017 ENTG Employee Stock Option (Right to Buy) Common Stock (4,908) $12.20 Feb. 19, 2023 4,908 Disposed
June 28, 2017 PLUG Common Stock Options [F2] Common Stock (29,343) $2.13 June 28, 2027 29,343 Acquired
May 10, 2017 PLUG Common Stock Options [F1] Common Stock (69,767) $2.15 May 10, 2027 69,767 Acquired
Feb. 21, 2017 ENTG Employee Stock Option (Right to Buy) Common Stock (18,948) $9.88 Feb. 19, 2020 18,948 Disposed
Feb. 21, 2017 ENTG Employee Stock Option (Right to Buy) Common Stock (72,954) $11.71 Feb. 19, 2021 72,954 Disposed
Feb. 14, 2017 ENTG Employee Stock Option (Right to Buy) Common Stock (51,948) $21.60 Feb. 19, 2024 51,948 Acquired
Oct. 5, 2016 ENTG Employee Stock Option (Right to Buy) Common Stock (18,948) $9.88 Feb. 19, 2020 18,948 Disposed
Aug. 1, 2016 ENTG Employee Stock Option (Right to Buy) Common Stock (53,136) $9.27 Feb. 19, 2019 53,136 Disposed
July 12, 2016 ENTG Employee Stock Option (Right to Buy) Common Stock (37,896) $9.88 Feb. 19, 2020 37,896 Disposed
Feb. 24, 2016 ENTG Employee Stock Option (Right to Buy) Common Stock (88,116) $12.20 Feb. 19, 2023 88,116 Acquired
June 18, 2015 ENTG Employee Stock Option (Right to Buy) Common Stock (8,111) $8.76 Feb. 19, 2018 8,111 Disposed
June 17, 2015 ENTG Employee Stock Option (Right to Buy) Common Stock (31,069) $8.76 Feb. 19, 2018 31,069 Disposed
June 16, 2015 ENTG Employee Stock Option (Right to Buy) Common Stock (12,664) $8.76 Feb. 19, 2018 12,664 Disposed
Feb. 10, 2015 ENTG Employee Stock Option (Right to Buy) Common Stock (60,552) $13.49 Feb. 19, 2022 60,552 Acquired
Oct. 31, 2014 ENTG Employee Stock Option (Right to Buy) Common Stock (28,334) $1.13 Feb. 19, 2016 28,334 Disposed
Oct. 29, 2014 ENTG Employee Stock Option (Right to Buy) Common Stock (30,000) $1.13 Feb. 19, 2016 30,000 Disposed
Aug. 20, 2014 ENTG Employee Stock Option (Right to Buy) Common Stock (7,000) $8.37 Oct. 15, 2014 7,000 Disposed
Aug. 20, 2014 ENTG Employee Stock Option (Right to Buy) Common Stock (40,000) $8.37 Oct. 15, 2014 40,000 Disposed
Aug. 20, 2014 ENTG Employee Stock Option (Right to Buy) Common Stock (70,000) $7.07 Feb. 21, 2015 70,000 Disposed
Feb. 11, 2014 ENTG Employee Stock Option (Right to Buy) Common Stock (97,272) $11.71 Feb. 19, 2021 97,272 Acquired
Feb. 19, 2013 ENTG Employee Stock Option (Right to Buy) Common Stock (25,819) $5.40 Feb. 19, 2017 25,819 Disposed
Feb. 12, 2013 ENTG Employee Stock Option (Right to Buy) Common Stock (75,792) $9.88 Feb. 19, 2020 75,792 Acquired
Jan. 4, 2013 ENTG Employee Stock Option (Right to Buy) Common Stock (25,819) $5.40 Feb. 19, 2017 25,819 Disposed
Feb. 15, 2012 ENTG Employee Stock Option (Right to Buy) Common Stock (53,136) $9.27 Feb. 19, 2019 53,136 Acquired
Feb. 15, 2012 ENTG Employee Stock Option (Right to Buy) Common Stock (53,136) $9.27 Feb. 19, 2019 53,136 Acquired
Jan. 19, 2012 ENTG Employee Stock Option (Right to Buy) Common Stock (9,789) $8.52 Sept. 3, 2012 9,789 Disposed
Jan. 19, 2012 ENTG Employee Stock Option (Right to Buy) Common Stock (36,711) $8.52 Sept. 3, 2012 36,711 Disposed
May 24, 2011 ENTG Employee Stock Option (Right to Buy) Common Stock (25,820) $5.40 Feb. 19, 2017 25,820 Disposed
May 24, 2011 ENTG Employee Stock Option (Right to Buy) Common Stock (7,500) $5.90 Oct. 15, 2012 7,500 Disposed
March 7, 2011 ENTG Employee Stock Option (Right to Buy) Common Stock (58,333) $1.13 Feb. 19, 2016 58,333 Disposed
Feb. 22, 2011 ENTG Employee Stock Option (Right to Buy) Common Stock (51,844) $8.76 Feb. 19, 2018 51,844 Acquired
Dec. 21, 2010 ENTG Employee Stock Option (Right to Buy) Common Stock (58,333) $1.13 Feb. 19, 2016 58,333 Acquired
Jan. 4, 2010 ENTG Employee Stock Option (Right to Buy) Common Stock (77,458) $5.40 Feb. 19, 2017 77,458 Acquired
Jan. 4, 2010 ENTG Employee Stock Option (Right to Buy) Common Stock (77,458) $5.40 Feb. 19, 2017 77,458 Acquired
Feb. 10, 2009 ENTG Employee Stock Option (Right to Buy) Common Stock (175,000) $1.13 Feb. 19, 2016 175,000 Acquired
Feb. 21, 2008 ENTG Employee Stock Option (right to buy) Common Stock (70,000) $7.07 Feb. 21, 2015 70,000 Acquired
Oct. 15, 2004 ENTG Stock Option (Right to Buy) Common Stock (47,000) $8.37 Oct. 15, 2014 47,000 Acquired
Oct. 27, 2003 ENTG Stock Option (Right to Buy) Common Stock (10,000) $5.90 Oct. 15, 2012 1,000 Disposed
Oct. 27, 2003 ENTG Stock Option (Right to Buy) Common Stock (51,000) $8.52 1,237 Disposed
Oct. 15, 2003 ENTG Stock Option (Right to Buy) Common Stock (45,000) $13.50 Oct. 15, 2013 45,000 Acquired
Oct. 8, 2003 ENTG Stock Option (Right to Buy) Common Stock (54,400) $8.52 Sept. 2, 2012 1,200 Disposed
Oct. 7, 2003 ENTG Stock Option (Right to Buy) Common Stock (60,000) $8.52 400 Disposed

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

Initial ownership (Form 3) 3 holdings

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

Date Ticker Security Shares Ownership
March 4, 2022 SKYT Common Stock 0 Direct
Oct. 28, 2003 ENTG Stock Option (Right to Buy)→ Common Stock (60,000) 60,000 Direct
Oct. 28, 2003 ENTG Stock Option (Right to Buy)→ Common Stock (10,000) 10,000 Direct

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

ENTG

CFO
Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2017
2015
2011

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.