David Montgomery

CIK 1272798 · View on SEC EDGAR ↗

Insider

First SEC filing: Dec. 17, 2003 · Latest: Dec. 17, 2003

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 95 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

95 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
June 11, 2025 SGI S 30,182 $65.69 $1,982,656 883,839 Direct -3.30% Disposed -0.9% (price as of 2026-08-20)
June 11, 2025 SGI S 45,826 $65.67 $3,009,393 914,021 Direct -4.77% Disposed -0.8% (price as of 2026-08-20)
March 3, 2025 SGI S 32,785 $62.88 $2,061,521 875,839 Direct -3.61% Disposed 3.6% (price as of 2026-08-20)
Aug. 10, 2023 SGI S 1,000 $45.98 $45,980 924,233 Direct -0.11% Disposed 41.6% (price as of 2026-08-20)
Aug. 10, 2023 SGI S 99,000 $45.61 $4,515,390 925,233 Direct -9.67% Disposed 42.8% (price as of 2026-08-20)

Showing latest 100 of 391 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. 26, 2026 SGI Performance Restricted Stock Units Common Stock (9,015) — — 9,015 Acquired
Jan. 2, 2026 SGI Restricted Stock Units Common Stock (2,593) — — 2,593 Disposed
Jan. 2, 2026 SGI Restricted Stock Units Common Stock (3,579) — — 3,579 Disposed
Jan. 2, 2026 SGI Restricted Stock Units Common Stock (2,609) — — 2,609 Disposed
Jan. 2, 2026 SGI Restricted Stock Units Common Stock (2,243) — — 2,243 Disposed
Jan. 2, 2026 SGI Performance Restricted Stock Units Common Stock (2,961) — — 2,961 Disposed
Jan. 2, 2026 SGI Performance Restricted Stock Units Common Stock (9,619) — — 9,619 Disposed
Jan. 2, 2026 SGI Performance Restricted Stock Units Common Stock (4,198) — — 4,198 Disposed
Jan. 2, 2026 SGI Restricted Stock Units Common Stock (5,635) — — 5,635 Acquired
June 11, 2025 SGI Stock Options (right to buy) Common Stock (37,624) $15.61 Jan. 4, 2028 37,624 Disposed
June 11, 2025 SGI Stock Option (right to buy) Common Stock (63,384) $17.38 Jan. 4, 2027 63,384 Disposed
March 3, 2025 SGI Stock Option (right to buy) Common Stock (50,000) $17.38 Jan. 4, 2027 50,000 Disposed
Feb. 28, 2025 SGI Performance Restricted Stock Units Common Stock (12,592) $0.00 — 12,592 Acquired
Jan. 3, 2025 SGI Restricted Stock Units Common Stock (8,970) — — 8,970 Acquired
Jan. 3, 2025 SGI Performance Restricted Stock Units Common Stock (9,619) — — 9,619 Disposed
Jan. 3, 2025 SGI Performance Restricted Stock Units Common Stock (2,955) — — 2,955 Disposed
Jan. 3, 2025 SGI Performance Restricted Stock Units Common Stock (18,897) — — 18,897 Disposed
Jan. 3, 2025 SGI Restricted Stock Units Common Stock (2,609) — — 2,609 Disposed
Jan. 3, 2025 SGI Restricted Stock Units Common Stock (3,579) — — 3,579 Disposed
Jan. 3, 2025 SGI Restricted Stock Units Common Stock (2,593) — — 2,593 Disposed
Jan. 3, 2025 SGI Restricted Stock Units Common Stock (4,724) — — 4,724 Disposed
Feb. 16, 2024 SGI Performance Restricted Stock Units Common Stock (28,860) $0.00 — 28,860 Acquired
Jan. 4, 2024 SGI Restricted Stock Units Common Stock (10,434) — — 10,434 Acquired
Jan. 4, 2024 SGI Restricted Stock Units Common Stock (3,579) — — 3,579 Disposed
Jan. 4, 2024 SGI Restricted Stock Units Common Stock (2,593) — — 2,593 Disposed
Jan. 4, 2024 SGI Restricted Stock Units Common Stock (4,724) — — 4,724 Disposed
Jan. 4, 2024 SGI Performance Restricted Stock Units Common Stock (2,961) — — 2,961 Disposed
Jan. 4, 2024 SGI Performance Restricted Stock Units Common Stock (18,897) — — 18,897 Disposed
Jan. 3, 2024 SGI Restricted Stock Units Common Stock (9,056) — — 9,056 Disposed
Jan. 3, 2024 SGI Performance Restricted Stock Units Common Stock (72,456) — — 72,456 Disposed
Aug. 10, 2023 SGI Stock Option (right to buy) Common Stock (100,000) $17.38 Jan. 4, 2027 100,000 Disposed
Feb. 17, 2023 SGI Performance Restricted Stock Units Common Stock (8,877) $0.00 — 8,877 Acquired
Jan. 4, 2023 SGI Restricted Stock Units Common Stock (14,315) $0.00 — 14,315 Acquired
Jan. 4, 2023 SGI Restricted Stock Units Common Stock (36,720) — — 36,720 Disposed
Jan. 4, 2023 SGI Restricted Stock Units Common Stock (4,724) — — 4,724 Disposed
Jan. 4, 2023 SGI Restricted Stock Units Common Stock (2,593) — — 2,593 Disposed
Jan. 4, 2023 SGI Performance Restricted Stock Units Common Stock (18,897) — — 18,897 Disposed
Jan. 3, 2023 SGI Restricted Stock Units Common Stock (9,056) — — 9,056 Disposed
Jan. 3, 2023 SGI Performance Restricted Stock Units Common Stock (72,480) — — 72,480 Disposed
Feb. 22, 2022 SGI Common Stock Common Stock (56,691) $0.00 — 56,691 Acquired
Jan. 5, 2022 SGI Restricted Stock Units Common Stock (17,612) — — 17,612 Disposed
Jan. 4, 2022 SGI Restricted Stock Units Common Stock (4,725) — — 4,725 Disposed
Jan. 4, 2022 SGI Restricted Stock Units Common Stock (36,720) — — 36,720 Disposed
Jan. 4, 2022 SGI Restricted Stock Units Common Stock (10,372) $0.00 — 10,372 Acquired
Jan. 3, 2022 SGI Restricted Stock Units Common Stock (9,060) — — 9,060 Disposed
Jan. 3, 2022 SGI Performance Restricted Stock Units Common Stock (72,456) — — 72,456 Disposed
Feb. 4, 2021 SGI Performance Restricted Stock Units Common Stock (217,392) $0.00 — 217,392 Acquired
Jan. 5, 2021 SGI Restricted Stock Units Common Stock (17,612) — — 17,612 Disposed
Jan. 5, 2021 SGI Restricted Stock Units Common Stock (15,824) — — 15,824 Disposed
Jan. 4, 2021 SGI Restricted Stock Units Common Stock (18,897) $0.00 — 18,897 Acquired
Jan. 4, 2021 SGI Restricted Stock Units Common Stock (36,720) — — 36,720 Disposed
Jan. 3, 2021 SGI Restricted Stock Units Common Stock (9,060) — — 9,060 Disposed
Dec. 15, 2020 SGI Performance Restricted Stock Units Common Stock (270,000) $0.00 Dec. 31, 2020 270,000 Disposed
Dec. 10, 2020 SGI Stock Options (right to buy) Common Stock $15.61 Jan. 4, 2028 37,624 Disposed
Dec. 10, 2020 SGI Stock Option (right to buy) Common Stock $14.38 Feb. 26, 2025 74,272 Disposed
Dec. 10, 2020 SGI Stock Options (right to buy) Common Stock $12.97 Feb. 27, 2024 38,208 Disposed
Dec. 10, 2020 SGI Stock Options (right to buy) Common Stock $9.26 Feb. 21, 2023 107,456 Disposed
Dec. 10, 2020 SGI Stock Option (right to buy) Common Stock $17.88 Feb. 8, 2022 19,352 Disposed
Nov. 16, 2020 SGI Performance Restricted Stock Units Common Stock (67,500) $0.00 Dec. 31, 2020 67,500 Acquired
Feb. 11, 2020 SGI Restricted Stock Units Common Stock (5,150) — — 5,150 Disposed
Jan. 5, 2020 SGI Restricted Stock Units Common Stock (3,957) — — 3,957 Disposed
Jan. 5, 2020 SGI Restricted Stock Units Common Stock (4,404) — — 4,404 Disposed
Jan. 4, 2020 SGI Restricted Stock Units Common Stock (9,181) — — 9,181 Disposed
Jan. 3, 2020 SGI Restricted Stock Units Common Stock (9,058) — — 9,058 Acquired
July 25, 2019 SGI Stock Option (right to buy) Common Stock (6,082) $46.68 Feb. 21, 2021 6,082 Disposed
Feb. 11, 2019 SGI Restricted Stock Units Common Stock (5,151) — — 5,151 Disposed
Jan. 5, 2019 SGI Restricted Stock Units Common Stock (4,404) — — 4,404 Disposed
Jan. 5, 2019 SGI Restricted Stock Units Common Stock (3,957) — — 3,957 Disposed
Jan. 4, 2019 SGI Restricted Stock Units Common Stock (36,721) — — 36,721 Acquired
Dec. 3, 2018 SGI Stock Options (right to buy) Common Stock (45,000) $6.14 Feb. 27, 2019 45,000 Disposed
March 5, 2018 SGI Restricted Stock Units Common Stock (3,957) — — 3,957 Disposed
March 5, 2018 SGI Restricted Stock Units Common Stock (15,827) — — 15,827 Acquired
Feb. 11, 2018 SGI Restricted Stock Units Common Stock (5,151) — — 5,151 Disposed
Jan. 5, 2018 SGI Stock Options (right to buy) Common Stock (18,812) $62.45 Jan. 4, 2028 18,812 Acquired
Jan. 5, 2018 SGI Restricted Stock Units Common Stock (17,614) $0.00 — 17,614 Acquired
Feb. 24, 2017 SGI Restricted Stock Units Common Stock (5,151) — — 5,151 Disposed
Feb. 24, 2017 SGI Restricted Stock Units Common Stock (20,603) — — 20,603 Acquired
Jan. 5, 2017 SGI Stock Option (right to buy) Common Stock (53,346) $69.50 Jan. 4, 2027 53,346 Acquired
Feb. 19, 2016 SGI Stock Options Common Stock (83,333) $13.47 June 28, 2016 83,333 Disposed
July 13, 2015 SGI Stock Options Common Stock (32,308) $13.47 June 28, 2016 32,308 Disposed
July 10, 2015 SGI Stock Options Common Stock (17,692) $13.47 June 28, 2016 17,692 Disposed
Feb. 27, 2015 SGI Stock Option (right to buy) Common Stock (18,568) $57.51 Feb. 26, 2025 18,568 Acquired
Feb. 28, 2014 SGI Stock Options (Right to buy) Common Stock (9,552) $51.87 Feb. 27, 2024 9,552 Acquired
Feb. 24, 2014 SGI Restricted Stock Units [F1] Common Stock (7,198) $0.00 — 7,198 Disposed
March 18, 2013 SGI Restricted Stock Units Common Stock (7,198) — — 7,198 Acquired
Feb. 22, 2013 SGI Stock Options (Right to buy) Common Stock (26,864) $37.05 Feb. 21, 2023 26,864 Acquired
June 12, 2012 SGI Stock Option Common Stock (90,000) $6.14 Feb. 27, 2019 90,000 Disposed
March 9, 2012 SGI Stock Option Common Stock (33,333) $13.47 June 28, 2016 33,333 Disposed
Feb. 15, 2012 SGI Stock Option Common Stock (33,334) $13.47 June 28, 2016 33,334 Disposed
Feb. 9, 2012 SGI Stock Options (option to buy) Common Stock (4,838) $71.50 Feb. 8, 2022 4,838 Acquired
July 29, 2011 SGI Stock Option Common Stock (40,000) $13.47 June 28, 2016 40,000 Disposed
April 8, 2011 SGI Stock Option Common Stock (60,000) $13.47 June 28, 2016 60,000 Disposed
March 24, 2011 SGI Stock Option Common Stock (50,000) $13.47 June 28, 2016 50,000 Disposed
Feb. 22, 2011 SGI Stock Options (option to buy) Common Stock (6,082) $46.68 Feb. 21, 2021 6,082 Acquired
Jan. 25, 2011 SGI Stock Option Common Stock (50,000) $11.76 May 15, 2018 50,000 Disposed
March 2, 2010 SGI Stock Option Common Stock (45,000) $6.14 Feb. 27, 2019 45,000 Acquired
Feb. 27, 2009 SGI Stock Options (option to buy) Common Stock (180,000) $6.14 Feb. 27, 2019 180,000 Acquired
May 15, 2008 SGI Stock Options (right to buy) Common Stock (50,000) $11.76 May 15, 2018 50,000 Acquired
Feb. 7, 2008 SGI Stock Option (right to buy) [F1] Common Stock (7,966) — Aug. 13, 2013 7,966 Disposed
Feb. 26, 2007 SGI Stock Option (right to buy) [F1] Common Stock (49,219) — Feb. 24, 2013 49,219 Disposed

Showing latest 100 of 110 transactions

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
Dec. 17, 2003 SGI Class B-1 Voting Common Stock, $0.01 par value per share 375 Direct
Dec. 17, 2003 SGI Stock Options (right to buy)→ Class B-1 Voting Common Stock (1,125) 1,125 Direct
Dec. 17, 2003 SGI Stock Options (right to buy)→ Class B-1 Voting Common Stock (121) 121 Direct

Compensation (DEF 14A)

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

SGI

Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2025 $467,028 — $999,976 — $332,758 — $86,467 $1,886,229
2024 $420,897 — $1,025,206 — $258,852 — $79,805 $1,784,760
2023 $416,002 — $1,037,329 — $433,682 — $84,400 $1,971,413

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