Peter W Walcott

CIK 1197453 · View on SEC EDGAR ↗

Insider

First SEC filing: Aug. 8, 2005 · Latest: Aug. 8, 2005

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 28 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

28 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Feb. 20, 2013 ENTG S 8,609 $9.80 $84,368 74,041 Direct -10.42% Disposed 1355.7% (price as of 2026-08-20)
Nov. 27, 2012 ENTG S 19,494 $8.77 $170,962 67,426 Direct -22.43% Disposed 1526.7% (price as of 2026-08-20)
Nov. 27, 2012 ENTG S 41,405 $8.77 $363,122 67,426 Direct -38.05% Disposed 1526.7% (price as of 2026-08-20)
Nov. 27, 2012 ENTG S 35,000 $8.77 $306,950 67,426 Direct -34.17% Disposed 1526.7% (price as of 2026-08-20)
Sept. 17, 2012 ENTG S 595 $9.07 $5,397 67,426 Direct -0.87% Disposed 1472.9% (price as of 2026-08-20)
Feb. 22, 2012 ENTG S 10b5-1 1,420 $9.14 $12,979 64,618 Direct -2.15% Disposed 1460.9% (price as of 2026-08-20)
Feb. 22, 2012 ENTG S 10b5-1 5,820 $9.14 $53,195 66,038 Direct -8.10% Disposed 1460.9% (price as of 2026-08-20)
Feb. 23, 2011 ENTG S 10b5-1 360 $8.41 $3,028 55,634 Direct -0.64% Disposed 1596.3% (price as of 2026-08-20)
Feb. 22, 2011 ENTG S 10b5-1 72,680 $8.83 $641,764 38,825 Direct -65.18% Disposed 1515.7% (price as of 2026-08-20)
Feb. 11, 2011 ENTG S 4,170 $8.85 $36,904 57,010 Direct -6.82% Disposed 1512.0% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 100 $5.49 $549 65,985 Direct -0.15% Disposed 2498.6% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 600 $5.49 $3,294 66,085 Direct -0.90% Disposed 2498.6% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 895 $5.48 $4,905 66,685 Direct -1.32% Disposed 2503.3% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 900 $5.47 $4,923 67,580 Direct -1.31% Disposed 2508.1% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 600 $5.46 $3,276 68,480 Direct -0.87% Disposed 2512.9% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 100 $5.45 $545 69,080 Direct -0.14% Disposed 2517.7% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 300 $5.44 $1,632 69,180 Direct -0.43% Disposed 2522.5% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 200 $5.43 $1,086 69,480 Direct -0.29% Disposed 2527.3% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 600 $5.42 $3,252 69,680 Direct -0.85% Disposed 2532.1% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 400 $5.41 $2,164 70,280 Direct -0.57% Disposed 2537.0% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 100 $5.40 $540 70,680 Direct -0.14% Disposed 2541.9% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 500 $5.39 $2,695 70,780 Direct -0.70% Disposed 2546.8% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 100 $5.38 $538 71,280 Direct -0.14% Disposed 2551.7% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 100 $5.37 $537 71,380 Direct -0.14% Disposed 2556.7% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 300 $5.36 $1,608 71,480 Direct -0.42% Disposed 2561.6% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 300 $5.35 $1,605 71,780 Direct -0.42% Disposed 2566.6% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 200 $5.34 $1,068 72,080 Direct -0.28% Disposed 2571.6% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 800 $5.31 $4,248 72,280 Direct -1.09% Disposed 2586.7% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 100 $5.30 $530 73,080 Direct -0.14% Disposed 2591.7% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 300 $5.30 $1,590 73,180 Direct -0.41% Disposed 2591.7% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 200 $5.29 $1,058 73,480 Direct -0.27% Disposed 2596.8% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 100 $5.28 $528 73,680 Direct -0.14% Disposed 2601.9% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 300 $5.28 $1,584 73,780 Direct -0.40% Disposed 2601.9% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 600 $5.27 $3,162 74,080 Direct -0.80% Disposed 2607.1% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 300 $5.26 $1,578 74,680 Direct -0.40% Disposed 2612.2% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 100 $5.24 $524 74,980 Direct -0.13% Disposed 2622.6% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 400 $5.23 $2,092 75,080 Direct -0.53% Disposed 2627.8% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 300 $5.22 $1,566 75,480 Direct -0.40% Disposed 2633.0% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 300 $5.21 $1,563 75,780 Direct -0.39% Disposed 2638.2% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 100 $5.20 $520 76,080 Direct -0.13% Disposed 2643.5% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 100 $5.69 $569 61,180 Direct -0.16% Disposed 2407.2% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 100 $5.68 $568 61,280 Direct -0.16% Disposed 2411.7% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 300 $5.66 $1,698 61,380 Direct -0.49% Disposed 2420.5% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 100 $5.65 $565 61,680 Direct -0.16% Disposed 2425.0% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 100 $5.64 $564 61,780 Direct -0.16% Disposed 2429.5% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 300 $5.62 $1,686 61,880 Direct -0.48% Disposed 2438.5% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 600 $5.61 $3,366 62,180 Direct -0.96% Disposed 2443.0% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 400 $5.60 $2,240 62,780 Direct -0.63% Disposed 2447.5% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 400 $5.59 $2,236 63,180 Direct -0.63% Disposed 2452.1% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 100 $5.58 $558 63,580 Direct -0.16% Disposed 2456.7% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 200 $5.57 $1,114 63,680 Direct -0.31% Disposed 2461.3% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 500 $5.56 $2,780 63,880 Direct -0.78% Disposed 2465.9% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 405 $5.55 $2,248 64,380 Direct -0.63% Disposed 2470.5% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 500 $5.54 $2,770 64,785 Direct -0.77% Disposed 2475.1% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 100 $5.53 $553 65,285 Direct -0.15% Disposed 2479.8% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 400 $5.52 $2,208 65,385 Direct -0.61% Disposed 2484.5% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 100 $5.51 $551 65,785 Direct -0.15% Disposed 2489.2% (price as of 2026-08-20)
May 17, 2010 ENTG S 10b5-1 100 $5.50 $550 65,885 Direct -0.15% Disposed 2493.9% (price as of 2026-08-20)
May 3, 2010 ENTG S 10b5-1 22,646 $6.66 $150,822 76,180 Direct -22.92% Disposed 2042.1% (price as of 2026-08-20)
April 15, 2010 ENTG S 10b5-1 400 $5.99 $2,396 76,180 Direct -0.52% Disposed 2281.7% (price as of 2026-08-20)
April 15, 2010 ENTG S 10b5-1 300 $5.94 $1,782 76,580 Direct -0.39% Disposed 2301.7% (price as of 2026-08-20)
April 15, 2010 ENTG S 10b5-1 200 $5.93 $1,186 76,880 Direct -0.26% Disposed 2305.8% (price as of 2026-08-20)
April 15, 2010 ENTG S 10b5-1 200 $5.92 $1,184 77,080 Direct -0.26% Disposed 2309.8% (price as of 2026-08-20)
April 15, 2010 ENTG S 10b5-1 700 $5.91 $4,137 77,280 Direct -0.90% Disposed 2313.9% (price as of 2026-08-20)
April 15, 2010 ENTG S 10b5-1 400 $5.90 $2,360 77,980 Direct -0.51% Disposed 2318.0% (price as of 2026-08-20)
April 15, 2010 ENTG S 10b5-1 1,011 $5.89 $5,955 78,380 Direct -1.27% Disposed 2322.1% (price as of 2026-08-20)
April 15, 2010 ENTG S 10b5-1 1,700 $5.88 $9,996 79,391 Direct -2.10% Disposed 2326.2% (price as of 2026-08-20)
April 15, 2010 ENTG S 10b5-1 200 $5.87 $1,174 81,091 Direct -0.25% Disposed 2330.4% (price as of 2026-08-20)
April 15, 2010 ENTG S 10b5-1 2,589 $5.87 $15,197 81,291 Direct -3.09% Disposed 2330.4% (price as of 2026-08-20)
April 15, 2010 ENTG S 10b5-1 1,800 $5.86 $10,548 83,880 Direct -2.10% Disposed 2334.5% (price as of 2026-08-20)
April 15, 2010 ENTG S 10b5-1 1,600 $5.85 $9,360 85,680 Direct -1.83% Disposed 2338.7% (price as of 2026-08-20)
Jan. 21, 2009 ENTG S 0 $1.66 — 85,878 Direct 0.00% Disposed 8494.1% (price as of 2026-08-20)

Showing latest 100 of 410 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
Feb. 10, 2015 ENTG Employee Stock Option (Right to Buy) Common Stock (31,256) $13.49 Feb. 19, 2022 31,256 Acquired
Feb. 11, 2014 ENTG Employee Stock Option (Right to Buy) Common Stock (56,564) $11.71 Feb. 19, 2021 56,564 Acquired
Feb. 12, 2013 ENTG Employee Stock Option (Right to Buy) Common Stock (59,364) $9.88 Feb. 19, 2020 59,364 Acquired
Nov. 27, 2012 ENTG Employee Stock Option (Right to Buy) Common Stock (19,494) $5.40 Feb. 19, 2017 19,494 Disposed
Nov. 27, 2012 ENTG Employee Stock Option (Right to Buy) Common Stock (41,405) $7.07 Feb. 21, 2015 41,405 Disposed
Nov. 27, 2012 ENTG Employee Stock Option (Right to Buy) Common Stock (35,000) $1.13 Feb. 19, 2016 35,000 Disposed
Sept. 17, 2012 ENTG Common Stock Common Stock (595) $7.07 Feb. 19, 2015 595 Disposed
Feb. 15, 2012 ENTG Employee Stock Option (Right to Buy) Common Stock (41,624) $9.27 Feb. 19, 2019 41,624 Acquired
Feb. 15, 2012 ENTG Employee Stock Option (Right to Buy) Common Stock (41,624) $9.27 Feb. 19, 2019 41,624 Acquired
Feb. 22, 2011 ENTG Employee Stock Option (Right to Buy) Common Stock (35,000) $1.13 Feb. 19, 2016 35,000 Disposed
Feb. 22, 2011 ENTG Employee Stock Option (Right to Buy) Common Stock (19,495) $5.40 Feb. 19, 2017 19,495 Disposed
Feb. 22, 2011 ENTG Employee Stock Option (Right to Buy) Common Stock (43,805) $8.76 Feb. 19, 2018 43,805 Acquired
May 3, 2010 ENTG Employee Stock Option (right to buy) Common Stock (22,646) $6.10 Dec. 7, 2010 22,646 Disposed
March 12, 2010 ENTG Employee Stock Option (right to buy) Common Stock (34,900) $1.13 Feb. 19, 2016 34,900 Disposed
March 11, 2010 ENTG Employee Stock Option (right to buy) Common Stock (100) $1.13 Feb. 19, 2016 100 Disposed
Jan. 4, 2010 ENTG Employee Stock Option (Right to Buy) Common Stock (58,484) $5.40 Feb. 19, 2017 58,484 Acquired
Jan. 4, 2010 ENTG Employee Stock Option (Right to Buy) Common Stock (58,484) $5.40 Feb. 19, 2017 58,484 Acquired
Dec. 9, 2009 ENTG Employee Stock Option (Right to Buy) Common Stock (14,523) $4.85 Dec. 9, 2009 14,523 Disposed
Feb. 10, 2009 ENTG Employee Stock Option (Right to Buy) Common Stock (105,000) $1.13 Feb. 19, 2016 105,000 Acquired
Feb. 21, 2008 ENTG Employee Stock Option (right to buy) Common Stock (42,000) $7.07 Feb. 21, 2015 42,000 Acquired
Aug. 6, 2005 ENTG Employee Stock Option (right to buy) Common Stock (69,500) $11.12 Dec. 4, 2011 69,500 Acquired
Aug. 6, 2005 ENTG Employee Stock Option (right to buy) Common Stock (76,450) $4.89 Dec. 18, 2009 76,450 Acquired
Aug. 6, 2005 ENTG Employee Stock Option (right to buy) Common Stock (55,600) $8.35 Nov. 29, 2008 55,600 Acquired
Aug. 6, 2005 ENTG Employee Stock Option (right to buy) Common Stock (97,300) $10.79 Aug. 10, 2008 97,300 Acquired
Aug. 6, 2005 ENTG Employee Stock Option (right to buy) Common Stock (695) $10.79 Aug. 10, 2007 695 Acquired
Aug. 6, 2005 ENTG Employee Stock Option (right to buy) Common Stock (7,111) $3.84 Dec. 10, 2008 7,111 Acquired
Aug. 6, 2005 ENTG Employee Stock Option (right to buy) Common Stock (14,522) $4.66 Dec. 9, 2009 14,522 Acquired
Aug. 6, 2005 ENTG Employee Stock Option (right to buy) Common Stock (22,645) $6.10 Dec. 7, 2010 22,645 Acquired

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

Initial ownership (Form 3) 2 holdings

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

Date Ticker Security Shares Ownership
Aug. 8, 2005 ENTG No securities owned 0 Direct
Aug. 8, 2005 ENTG No securities owned→ Common Stock — Direct

Compensation (DEF 14A)

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

ENTG

President GeneralCounsel & Secretary
Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2015 — — — — — — — —
2011 — — — — — — — —
2005 $2,005,200,520,042,003 — — — — — — —

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