Ernest E Maddock

CIK 1227050 · View on SEC EDGAR ↗

Insider

First SEC filing: March 19, 2026 · Latest: March 19, 2026

On this page

Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 84 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

84 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
March 7, 2025 UCTT P 10,000 $24.29 $242,900 11,000 Indirect +1000.00% Acquired 215.1% (price as of 2026-08-19)
Aug. 16, 2024 OUST P 8,000 $7.79 $62,320 69,119 Direct +13.09% Acquired 416.3% (price as of 2026-08-19)
Feb. 1, 2024 TER P 1,000 $94.07 $94,070 4,728 Direct +26.82% Acquired 308.8% (price as of 2026-08-19)
Nov. 15, 2023 OUST P 7,000 $5.29 $37,030 45,924 Direct +17.98% Acquired 660.3% (price as of 2026-08-19)
Aug. 21, 2023 OUST P 7,000 $6.02 $42,140 38,924 Direct +21.93% Acquired 568.1% (price as of 2026-08-19)
July 31, 2018 UCTT P 1,000 $13.40 $13,400 6,430 Direct +18.42% Acquired 471.1% (price as of 2026-08-19)
Aug. 11, 2017 MU P 3,400 $27.89 $94,826 192,385 Direct +1.80% Acquired 3224.9% (price as of 2026-08-19)
Jan. 21, 2016 MU P 10,000 $10.69 $106,900 123,256 Direct +8.83% Acquired 8574.6% (price as of 2026-08-19)
Dec. 24, 2015 MU P 10,000 $14.32 $143,200 113,256 Direct +9.68% Acquired 6375.7% (price as of 2026-08-19)
July 9, 2015 MU P 5,000 $17.50 $87,500 38,900 Direct +14.75% Acquired 5199.0% (price as of 2026-08-19)
March 2, 2011 LRCX S 25,000 $56.65 $1,416,250 38,259 Direct -39.52% Disposed 5468.6% (price as of 2026-08-19)
Dec. 7, 2010 LRCX S 10b5-1 3,050 $50.00 $152,500 42,591 Direct -6.68% Disposed 6209.2% (price as of 2026-08-19)
Nov. 9, 2005 LRCX S 13,500 $37.00 $499,500 483 Direct -96.55% Disposed 8425.9% (price as of 2026-08-19)
Oct. 13, 2005 LRCX S 10b5-1 10,000 $33.00 $330,000 0 Direct -100.00% Disposed 9459.4% (price as of 2026-08-19)
Oct. 13, 2005 LRCX S 10b5-1 16,600 $34.00 $564,400 483 Direct -97.17% Disposed 9178.2% (price as of 2026-08-19)
Sept. 13, 2005 LRCX S 10b5-1 250 $32.00 $8,000 0 Direct -100.00% Disposed 9758.1% (price as of 2026-08-19)

Showing latest 100 of 131 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
June 17, 2026 AVT Phantom Stock Units [F1] Common Stock (62) — — 62 Acquired
March 18, 2026 AVT Phantom Stock Units [F1] Common Stock (94) — — 94 Acquired
Jan. 2, 2026 AVT Phantom Stock Units [F1] Common Stock (4,078) — — 4,078 Acquired
Dec. 17, 2025 AVT Phantom Stock Units [F1] Common Stock (87) — — 87 Acquired
Sept. 26, 2025 AVT Phantom Stock Units [F1] Common Stock (80) — — 80 Acquired
June 18, 2025 AVT Phantom Stock Units [F1] Common Stock (76) — — 76 Acquired
March 19, 2025 AVT Phantom Stock Units [F1] Common Stock (78) — — 78 Acquired
Jan. 2, 2025 AVT Phantom Stock Units [F1] Common Stock (3,442) — — 3,442 Acquired
Dec. 18, 2024 AVT Phantom Stock Units [F1] Common Stock (51) — — 51 Acquired
Sept. 25, 2024 AVT Phantom Stock Units [F1] Common Stock (52) — — 52 Acquired
June 18, 2024 AVT Phantom Stock Units [F1] Common Stock (47) — — 47 Acquired
March 20, 2024 AVT Phantom Stock Units [F1] Common Stock (54) — — 54 Acquired
Jan. 2, 2024 AVT Phantom Stock Units [F1] Common Stock (3,642) — — 3,642 Acquired
Dec. 20, 2023 AVT Phantom Stock Units [F1] Common Stock (28) — — 28 Acquired
Sept. 27, 2023 AVT Phantom Stock Units [F1] Common Stock (28) — — 28 Acquired
June 21, 2023 AVT Phantom Stock Units [F1] Common Stock (27) — — 27 Acquired
March 15, 2023 AVT Phantom Stock Units [F1] Common Stock (30) — — 30 Acquired
Jan. 3, 2023 AVT Phantom Stock Units [F1] Common Stock (4,334) — — 4,334 Acquired
Oct. 24, 2017 MU Performance Restricted Stock Unit Common Stock — — 19,433 Acquired
Oct. 24, 2017 MU Non-Qualified Stock Option Common Stock (42,092) $41.56 Oct. 24, 2025 42,092 Acquired
Oct. 19, 2016 MU Performance Restricted Stock Unit Common Stock $0.00 — 42,440 Acquired
Oct. 19, 2016 MU Non-Qualified Stock Option Common Stock (97,920) $17.41 Oct. 19, 2024 97,920 Acquired
Dec. 11, 2015 MU Non-Qualified Stock Option Common Stock (5,662) $14.66 Dec. 11, 2023 5,662 Acquired
Oct. 14, 2015 MU Performance Restricted Stock Unit Common Stock $0.00 — 37,852 Acquired
Oct. 14, 2015 MU Non-Qualified Stock Option Common Stock (80,739) $18.18 Oct. 14, 2023 80,739 Acquired
June 3, 2015 MU Non-qualified Stock Option Common Stock (100,300) $27.79 June 3, 2023 100,300 Acquired
March 2, 2011 LRCX Stock Option (right to buy) Common Stock (25,000) $20.21 Feb. 26, 2014 25,000 Disposed
Feb. 26, 2009 LRCX Stock Option (right to buy) Common Stock (49,480) $20.21 Feb. 26, 2014 49,480 Acquired
May 1, 2008 LRCX Stock Option (right to buy) Common Stock (2,050) $16.14 Oct. 1, 2011 2,050 Disposed
May 1, 2008 LRCX Stock Option (right to buy) Common Stock (2,050) $16.64 Oct. 1, 2011 2,050 Acquired
May 1, 2008 LRCX Stock Option (right to buy) Common Stock (1,000) $22.79 Dec. 24, 2011 1,000 Disposed
May 1, 2008 LRCX Stock Option (right to buy) Common Stock (1,000) $24.19 Dec. 24, 2011 1,000 Acquired
May 1, 2008 LRCX Stock Option (right to buy) Common Stock (28,800) $22.05 Feb. 27, 2009 28,800 Disposed
May 1, 2008 LRCX Stock Option (right to buy) Common Stock (28,800) $25.53 Feb. 27, 2009 28,800 Acquired
Nov. 9, 2005 LRCX Stock Option (right to buy) Common Stock (13,500) $26.44 May 23, 2010 13,500 Disposed
Oct. 13, 2005 LRCX Stock Option (right to buy) Common Stock (26,600) $22.05 Feb. 27, 2009 26,600 Disposed
Sept. 13, 2005 LRCX Stock Option (right to buy) Common Stock (250) $8.69 Oct. 16, 2009 250 Disposed
Sept. 13, 2005 LRCX Stock Option (right to buy) Common Stock (10,000) $22.05 Feb. 27, 2009 10,000 Disposed
Dec. 2, 2004 LRCX Stock Option (right to buy) Common Stock (2,250) $8.69 Oct. 16, 2009 2,250 Disposed
Dec. 2, 2004 LRCX Stock Option (right to buy) Common Stock (7,500) $22.05 Feb. 27, 2009 7,500 Disposed
Nov. 17, 2004 LRCX Stock Option (right to buy) Common Stock (10,000) $8.69 Oct. 16, 2009 10,000 Disposed
Nov. 15, 2004 LRCX Stock Option (right to buy) Common Stock (10,000) $8.69 Oct. 16, 2009 10,000 Disposed
Oct. 28, 2003 LRCX Stock Option (Right to Buy) Common Stock (10,000) $8.69 Oct. 16, 2009 10,000 Disposed
Oct. 28, 2003 LRCX Stock Option (Right to Buy) Common Stock (13,800) $22.05 Feb. 27, 2009 13,800 Disposed
Aug. 15, 2003 LRCX Stock Option (Rght to Buy) Common Stock (2,050) $11.66 Aug. 2, 2009 2,050 Disposed
Aug. 15, 2003 LRCX Stock Option (Rght to Buy) Common Stock (12,000) $8.69 Aug. 2, 2009 12,000 Disposed
Aug. 15, 2003 LRCX Stock Option (Rght to Buy) Common Stock (1,000) $12.74 July 29, 2009 1,000 Disposed

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

Initial ownership (Form 3) 8 holdings

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

Date Ticker Security Shares Ownership
Aug. 26, 2021 AVT Common Stock — Direct
June 5, 2015 MU Common Stock 0 Direct
Nov. 17, 2004 LRCX Common Stock 2,886 Direct
Nov. 17, 2004 LRCX Stock Option (right to buy)→ Common Stock (13,500) 13,500 Direct
Nov. 17, 2004 LRCX Stock Option (right to buy)→ Common Stock (2,050) 2,050 Direct
Nov. 17, 2004 LRCX Stock Option (right to buy)→ Common Stock (1,000) 1,000 Direct
Nov. 17, 2004 LRCX Stock Option (right to buy)→ Common Stock (72,900) 72,900 Direct
Nov. 17, 2004 LRCX Stock Option (right to buy)→ Common Stock (22,500) 22,500 Direct

Compensation (DEF 14A)

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

LRCX

Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2005 $332,757 $424,792 — — — — $4,242 —
2004 $283,385 $180,000 — — — — $3,994 —
2003 $216,538 $12,000 — — — — $5,662 —

MU

Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2018 $491,231 — $2,723,360 $865,446 $960,000 — $238,160 $5,278,197
2017 $610,308 — $2,250,005 $749,997 $1,240,000 — $32,958 $4,883,268
2016 $550,000 — $1,949,981 $686,347 — — $59,188 $3,245,516

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