Clifford H Buster III

Insider

First SEC filing: June 12, 2025 · Latest: June 12, 2025

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Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Compensation Executive pay disclosed in company proxy statements.

Insider at

SGI selling June 11, 2025

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 97 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

97 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 11, 2025	SGI	M	35,248	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
June 11, 2025	SGI	G	5,400	—	—	280,755 Direct	-1.89%	Disposed	(price as of 2026-08-21)
June 11, 2025	SGI	S	22,092	$65.80	$1,453,654	286,155 Direct	-7.17%	Disposed	-1.6% (price as of 2026-08-21)
June 11, 2025	SGI	M	35,248	$15.61	$550,221	308,247 Direct	+12.91%	Acquired	314.8% (price as of 2026-08-21)
March 11, 2025	SGI	A	32,400	—	—	289,379 Indirect	+12.61%	Acquired	(price as of 2026-08-21)
March 11, 2025	SGI	G	32,400	—	—	272,999 Direct	-10.61%	Disposed	(price as of 2026-08-21)
Feb. 28, 2025	SGI	A	31,482	—	—	31,482 Direct	—	Acquired	(price as of 2026-08-21)
Jan. 3, 2025	SGI	A	22,426	—	—	22,426 Direct	—	Acquired	(price as of 2026-08-21)
Jan. 3, 2025	SGI	M	24,050	—	—	48,097 Direct	-33.33%	Disposed	(price as of 2026-08-21)
Jan. 3, 2025	SGI	M	7,400	—	—	7,397 Direct	-50.01%	Disposed	(price as of 2026-08-21)
Jan. 3, 2025	SGI	M	47,235	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Jan. 3, 2025	SGI	M	6,522	—	—	19,563 Direct	-25.00%	Disposed	(price as of 2026-08-21)
Jan. 3, 2025	SGI	M	8,947	—	—	17,892 Direct	-33.34%	Disposed	(price as of 2026-08-21)
Jan. 3, 2025	SGI	M	6,482	—	—	6,482 Direct	-50.00%	Disposed	(price as of 2026-08-21)
Jan. 3, 2025	SGI	M	11,810	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Jan. 3, 2025	SGI	F	11,088	$55.74	$618,045	305,399 Direct	-3.50%	Disposed	16.2% (price as of 2026-08-21)
Jan. 3, 2025	SGI	M	24,050	—	—	316,487 Direct	+8.22%	Acquired	(price as of 2026-08-21)
Jan. 3, 2025	SGI	F	3,412	$55.74	$190,185	292,437 Direct	-1.15%	Disposed	16.2% (price as of 2026-08-21)
Jan. 3, 2025	SGI	M	7,400	—	—	295,849 Direct	+2.57%	Acquired	(price as of 2026-08-21)
Jan. 3, 2025	SGI	F	21,919	$55.74	$1,221,765	288,449 Direct	-7.06%	Disposed	16.2% (price as of 2026-08-21)
Jan. 3, 2025	SGI	M	47,235	—	—	310,368 Direct	+17.95%	Acquired	(price as of 2026-08-21)
Jan. 3, 2025	SGI	F	3,007	$55.74	$167,610	263,133 Direct	-1.13%	Disposed	16.2% (price as of 2026-08-21)
Jan. 3, 2025	SGI	M	6,522	—	—	266,140 Direct	+2.51%	Acquired	(price as of 2026-08-21)
Jan. 3, 2025	SGI	F	4,125	$55.74	$229,928	259,618 Direct	-1.56%	Disposed	16.2% (price as of 2026-08-21)
Jan. 3, 2025	SGI	M	8,947	—	—	263,743 Direct	+3.51%	Acquired	(price as of 2026-08-21)
Jan. 3, 2025	SGI	F	2,989	$55.74	$166,607	254,796 Direct	-1.16%	Disposed	16.2% (price as of 2026-08-21)
Jan. 3, 2025	SGI	M	6,482	—	—	257,785 Direct	+2.58%	Acquired	(price as of 2026-08-21)
Jan. 3, 2025	SGI	F	5,445	$55.74	$303,504	251,303 Direct	-2.12%	Disposed	16.2% (price as of 2026-08-21)
Jan. 3, 2025	SGI	M	11,810	—	—	256,748 Direct	+4.82%	Acquired	(price as of 2026-08-21)
March 6, 2024	SGI	G	55,250	—	—	256,979 Indirect	+27.39%	Acquired	(price as of 2026-08-21)
March 6, 2024	SGI	G	55,250	—	—	244,938 Direct	-18.41%	Disposed	(price as of 2026-08-21)
Feb. 16, 2024	SGI	A	72,147	—	—	72,147 Direct	—	Acquired	(price as of 2026-08-21)
Jan. 4, 2024	SGI	A	26,085	—	—	26,085 Direct	—	Acquired	(price as of 2026-08-21)
Jan. 4, 2024	SGI	M	8,947	—	—	26,839 Direct	-25.00%	Disposed	(price as of 2026-08-21)
Jan. 4, 2024	SGI	M	6,482	—	—	12,964 Direct	-33.33%	Disposed	(price as of 2026-08-21)
Jan. 4, 2024	SGI	M	11,810	—	—	11,810 Direct	-50.00%	Disposed	(price as of 2026-08-21)
Jan. 4, 2024	SGI	M	7,399	—	—	14,797 Direct	-33.33%	Disposed	(price as of 2026-08-21)
Jan. 4, 2024	SGI	M	47,244	—	—	47,235 Direct	-50.00%	Disposed	(price as of 2026-08-21)
Jan. 4, 2024	SGI	F	4,125	$47.92	$197,670	300,188 Direct	-1.36%	Disposed	35.1% (price as of 2026-08-21)
Jan. 4, 2024	SGI	M	8,947	—	—	304,313 Direct	+3.03%	Acquired	(price as of 2026-08-21)
Jan. 4, 2024	SGI	F	2,989	$47.92	$143,233	295,366 Direct	-1.00%	Disposed	35.1% (price as of 2026-08-21)
Jan. 4, 2024	SGI	M	6,482	—	—	298,355 Direct	+2.22%	Acquired	(price as of 2026-08-21)
Jan. 4, 2024	SGI	F	5,445	$47.92	$260,924	291,873 Direct	-1.83%	Disposed	35.1% (price as of 2026-08-21)
Jan. 4, 2024	SGI	M	11,810	—	—	297,318 Direct	+4.14%	Acquired	(price as of 2026-08-21)
Jan. 4, 2024	SGI	F	3,411	$47.92	$163,455	285,508 Direct	-1.18%	Disposed	35.1% (price as of 2026-08-21)
Jan. 4, 2024	SGI	M	7,399	—	—	288,919 Direct	+2.63%	Acquired	(price as of 2026-08-21)
Jan. 4, 2024	SGI	F	21,780	$47.92	$1,043,698	281,520 Direct	-7.18%	Disposed	35.1% (price as of 2026-08-21)
Jan. 4, 2024	SGI	M	47,244	—	—	303,300 Direct	+18.45%	Acquired	(price as of 2026-08-21)
Jan. 3, 2024	SGI	M	9,056	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Jan. 3, 2024	SGI	M	72,456	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Jan. 3, 2024	SGI	F	4,175	$48.31	$201,694	256,056 Direct	-1.60%	Disposed	34.0% (price as of 2026-08-21)
Jan. 3, 2024	SGI	M	9,056	—	—	260,231 Direct	+3.61%	Acquired	(price as of 2026-08-21)
Jan. 3, 2024	SGI	F	33,559	$48.31	$1,621,235	251,175 Direct	-11.79%	Disposed	34.0% (price as of 2026-08-21)
Jan. 3, 2024	SGI	M	72,456	—	—	284,734 Direct	+34.13%	Acquired	(price as of 2026-08-21)
Sept. 13, 2023	SGI	G	2,210	—	—	212,278 Direct	-1.03%	Disposed	(price as of 2026-08-21)
Sept. 13, 2023	SGI	G	556	—	—	214,488 Direct	-0.26%	Disposed	(price as of 2026-08-21)
Sept. 5, 2023	SGI	G	5,480	—	—	215,044 Direct	-2.48%	Disposed	(price as of 2026-08-21)
Aug. 18, 2023	SGI	G	56,500	—	—	201,729 Indirect	+38.90%	Acquired	(price as of 2026-08-21)
Aug. 18, 2023	SGI	G	56,500	—	—	220,524 Direct	-20.40%	Disposed	(price as of 2026-08-21)
May 31, 2023	SGI	S	5,781	$36.55	$211,296	145,229 Indirect	-3.83%	Disposed	77.2% (price as of 2026-08-21)
May 31, 2023	SGI	S	69,419	$35.76	$2,482,423	151,010 Indirect	-31.49%	Disposed	81.1% (price as of 2026-08-21)
Feb. 17, 2023	SGI	A	22,196	—	—	22,196 Direct	—	Acquired	(price as of 2026-08-21)
Jan. 4, 2023	SGI	A	35,786	—	—	35,786 Direct	—	Acquired	(price as of 2026-08-21)
Jan. 4, 2023	SGI	M	33,760	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Jan. 4, 2023	SGI	M	11,810	—	—	23,620 Direct	-33.33%	Disposed	(price as of 2026-08-21)
Jan. 4, 2023	SGI	M	6,482	—	—	19,446 Direct	-25.00%	Disposed	(price as of 2026-08-21)
Jan. 4, 2023	SGI	M	47,244	—	—	94,479 Direct	-33.34%	Disposed	(price as of 2026-08-21)
Jan. 4, 2023	SGI	F	15,733	$34.93	$549,554	277,024 Direct	-5.37%	Disposed	85.4% (price as of 2026-08-21)
Jan. 4, 2023	SGI	M	33,760	—	—	292,757 Direct	+13.03%	Acquired	(price as of 2026-08-21)
Jan. 4, 2023	SGI	F	5,504	$34.93	$192,255	258,997 Direct	-2.08%	Disposed	85.4% (price as of 2026-08-21)
Jan. 4, 2023	SGI	M	11,810	—	—	264,501 Direct	+4.67%	Acquired	(price as of 2026-08-21)
Jan. 4, 2023	SGI	F	3,021	$34.93	$105,524	252,691 Direct	-1.18%	Disposed	85.4% (price as of 2026-08-21)
Jan. 4, 2023	SGI	M	6,482	—	—	255,712 Direct	+2.60%	Acquired	(price as of 2026-08-21)
Jan. 4, 2023	SGI	F	22,016	$34.93	$769,019	249,230 Direct	-8.12%	Disposed	85.4% (price as of 2026-08-21)
Jan. 4, 2023	SGI	M	47,244	—	—	271,246 Direct	+21.09%	Acquired	(price as of 2026-08-21)
Jan. 3, 2023	SGI	M	9,056	—	—	9,056 Direct	-50.00%	Disposed	(price as of 2026-08-21)
Jan. 3, 2023	SGI	M	72,480	—	—	72,456 Direct	-50.01%	Disposed	(price as of 2026-08-21)
Jan. 3, 2023	SGI	F	4,221	$33.77	$142,543	224,002 Direct	-1.85%	Disposed	91.7% (price as of 2026-08-21)
Jan. 3, 2023	SGI	M	9,056	—	—	228,223 Direct	+4.13%	Acquired	(price as of 2026-08-21)
Jan. 3, 2023	SGI	F	34,017	$33.77	$1,148,754	219,167 Direct	-13.44%	Disposed	91.7% (price as of 2026-08-21)
Jan. 3, 2023	SGI	M	72,480	—	—	253,184 Direct	+40.11%	Acquired	(price as of 2026-08-21)
Nov. 9, 2022	SGI	M	15,040	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Nov. 9, 2022	SGI	F	7,084	$29.56	$209,403	180,704 Direct	-3.77%	Disposed	119.0% (price as of 2026-08-21)
Nov. 9, 2022	SGI	M	15,040	—	—	187,788 Direct	+8.71%	Acquired	(price as of 2026-08-21)
March 9, 2022	SGI	G	63,598	—	—	220,429 Indirect	+40.55%	Acquired	(price as of 2026-08-21)
March 9, 2022	SGI	G	63,598	—	—	172,748 Direct	-26.91%	Disposed	(price as of 2026-08-21)
Feb. 22, 2022	SGI	A	141,723	—	—	141,723 Direct	—	Acquired	(price as of 2026-08-21)
Jan. 5, 2022	SGI	M	15,612	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Jan. 5, 2022	SGI	F	7,354	$46.83	$344,388	236,346 Direct	-3.02%	Disposed	38.3% (price as of 2026-08-21)
Jan. 5, 2022	SGI	M	15,612	—	—	243,700 Direct	+6.84%	Acquired	(price as of 2026-08-21)
Jan. 4, 2022	SGI	M	11,811	—	—	35,430 Direct	-25.00%	Disposed	(price as of 2026-08-21)
Jan. 4, 2022	SGI	M	33,760	—	—	33,760 Direct	-50.00%	Disposed	(price as of 2026-08-21)
Jan. 4, 2022	SGI	A	25,928	—	—	25,928 Direct	—	Acquired	(price as of 2026-08-21)
Jan. 4, 2022	SGI	F	5,563	$48.21	$268,192	228,088 Direct	-2.38%	Disposed	34.3% (price as of 2026-08-21)
Jan. 4, 2022	SGI	M	11,811	—	—	233,651 Direct	+5.32%	Acquired	(price as of 2026-08-21)
Jan. 4, 2022	SGI	F	15,901	$48.21	$766,587	221,840 Direct	-6.69%	Disposed	34.3% (price as of 2026-08-21)
Jan. 4, 2022	SGI	M	33,760	—	—	237,741 Direct	+16.55%	Acquired	(price as of 2026-08-21)
Jan. 4, 2022	SGI	M	33,760	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Jan. 4, 2022	SGI	M	33,760	—	—	33,760 Direct	-50.00%	Disposed	(price as of 2026-08-21)
Jan. 3, 2022	SGI	M	9,060	—	—	18,112 Direct	-33.34%	Disposed	(price as of 2026-08-21)

Showing latest 100 of 167 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 11, 2025	SGI	Stock Options (right to buy)	Common Stock (35,248)	$15.61	Jan. 4, 2028	35,248	Disposed
Feb. 28, 2025	SGI	Performance Restricted Stock Units	Common Stock (31,482)	$0.00	—	31,482	Acquired
Jan. 3, 2025	SGI	Restricted Stock Units	Common Stock (22,426)	—	—	22,426	Acquired
Jan. 3, 2025	SGI	Performance Restricted Stock Units	Common Stock (24,050)	—	—	24,050	Disposed
Jan. 3, 2025	SGI	Performance Restricted Stock Units	Common Stock (7,400)	—	—	7,400	Disposed
Jan. 3, 2025	SGI	Performance Restricted Stock Units	Common Stock (47,235)	—	—	47,235	Disposed
Jan. 3, 2025	SGI	Restricted Stock Units	Common Stock (6,522)	—	—	6,522	Disposed
Jan. 3, 2025	SGI	Restricted Stock Units	Common Stock (8,947)	—	—	8,947	Disposed
Jan. 3, 2025	SGI	Restricted Stock Units	Common Stock (6,482)	—	—	6,482	Disposed
Jan. 3, 2025	SGI	Restricted Stock Units	Common Stock (11,810)	—	—	11,810	Disposed
Feb. 16, 2024	SGI	Performance Restricted Stock Units	Common Stock (72,147)	$0.00	—	72,147	Acquired
Jan. 4, 2024	SGI	Restricted Stock Units	Common Stock (26,085)	—	—	26,085	Acquired
Jan. 4, 2024	SGI	Restricted Stock Units	Common Stock (8,947)	—	—	8,947	Disposed
Jan. 4, 2024	SGI	Restricted Stock Units	Common Stock (6,482)	—	—	6,482	Disposed
Jan. 4, 2024	SGI	Restricted Stock Units	Common Stock (11,810)	—	—	11,810	Disposed
Jan. 4, 2024	SGI	Performance Restricted Stock Units	Common Stock (7,399)	—	—	7,399	Disposed
Jan. 4, 2024	SGI	Performance Restricted Stock Units	Common Stock (47,244)	—	—	47,244	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
Feb. 17, 2023	SGI	Performance Restricted Stock Units	Common Stock (22,196)	$0.00	—	22,196	Acquired
Jan. 4, 2023	SGI	Restricted Stock Units	Common Stock (35,786)	$0.00	—	35,786	Acquired
Jan. 4, 2023	SGI	Restricted Stock Units	Common Stock (33,760)	—	—	33,760	Disposed
Jan. 4, 2023	SGI	Restricted Stock Units	Common Stock (11,810)	—	—	11,810	Disposed
Jan. 4, 2023	SGI	Restricted Stock Units	Common Stock (6,482)	—	—	6,482	Disposed
Jan. 4, 2023	SGI	Performance Restricted Stock Units	Common Stock (47,244)	—	—	47,244	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
Nov. 9, 2022	SGI	Performance Restricted Stock Units	Common Stock (15,040)	—	—	15,040	Disposed
Feb. 22, 2022	SGI	Common Stock	Common Stock (141,723)	$0.00	—	141,723	Acquired
Jan. 5, 2022	SGI	Restricted Stock Units	Common Stock (15,612)	—	—	15,612	Disposed
Jan. 4, 2022	SGI	Restricted Stock Units	Common Stock (11,811)	—	—	11,811	Disposed
Jan. 4, 2022	SGI	Restricted Stock Units	Common Stock (33,760)	—	—	33,760	Disposed
Jan. 4, 2022	SGI	Restricted Stock Units	Common Stock (25,928)	$0.00	—	25,928	Acquired
Jan. 4, 2022	SGI	Restricted Stock Units	Common Stock (33,760)	$0.00	—	33,760	Disposed
Jan. 4, 2022	SGI	Restricted Stock Units	Common Stock (33,760)	$0.00	—	33,760	Disposed
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
Nov. 9, 2021	SGI	Performance Restricted Stock Units	Common Stock (15,040)	—	—	15,040	Disposed
Sept. 5, 2021	SGI	Restricted Stock Units	Common Stock (15,952)	—	—	15,952	Disposed
Aug. 31, 2021	SGI	Stock Options (right to buy)	Common Stock (40,000)	$15.61	Jan. 4, 2028	40,000	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 (15,612)	—	—	15,612	Disposed
Jan. 4, 2021	SGI	Restricted Stock Units	Common Stock (47,241)	$0.00	—	47,241	Acquired
Jan. 4, 2021	SGI	Restricted Stock Units	Common Stock (33,760)	—	—	33,760	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 (200,000)	$0.00	Dec. 31, 2020	200,000	Disposed
Nov. 16, 2020	SGI	Performance Restricted Stock Units	Common Stock (50,000)	$0.00	Dec. 31, 2020	50,000	Acquired
Nov. 9, 2020	SGI	Performance Restricted Stock Units	Common Stock (3,760)	—	—	3,760	Disposed
Sept. 5, 2020	SGI	Restricted Stock Units	Common Stock (3,989)	—	—	3,989	Disposed
Jan. 5, 2020	SGI	Restricted Stock Units	Common Stock (3,903)	—	—	3,903	Disposed
Jan. 4, 2020	SGI	Restricted Stock Units	Common Stock (8,440)	—	—	8,440	Disposed
Jan. 3, 2020	SGI	Restricted Stock Units	Common Stock (9,058)	—	—	9,058	Acquired
Nov. 9, 2019	SGI	Performance Restricted Stock Units	Common Stock (3,760)	—	—	3,760	Disposed
Sept. 5, 2019	SGI	Restricted Stock Units	Common Stock (3,989)	$0.00	—	3,989	Disposed
March 5, 2019	SGI	Performance Restricted Stock Units	Common Stock (3,760)	$0.00	—	3,760	Disposed
March 5, 2019	SGI	Performance Restricted Stock Units	Common Stock (18,800)	$0.00	—	18,800	Acquired
March 5, 2019	SGI	Restricted Stock Units	Common Stock (3,989)	$0.00	—	3,989	Disposed
March 5, 2019	SGI	Restricted Stock Units	Common Stock (15,955)	$0.00	—	15,955	Acquired
Jan. 5, 2019	SGI	Restricted Stock Units	Common Stock (3,903)	—	—	3,903	Disposed
Jan. 4, 2019	SGI	Restricted Stock Units	Common Stock (33,760)	—	—	33,760	Acquired
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 (15,612)	$0.00	—	15,612	Acquired

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

Compensation (DEF 14A)

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

SGI

CEO

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2025	$564,000	—	$2,499,995	—	$455,430	—	$17,571	$3,536,996
2024	$547,000	—	$2,563,008	—	$381,259	—	$12,220	$3,503,487
2023	$531,000	—	$2,593,253	—	$627,377	—	$12,664	$3,764,294

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