Gary W. Mize

Insider

First SEC filing: May 10, 2016 · Latest: May 29, 2026

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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.
Initial holdings The stakes this person held when they first started reporting.

Insider at

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
May 27, 2026	GEVO	A	70,000	—	—	351,226 Direct	+24.89%	Acquired	(price as of 2026-08-19)
May 7, 2025	DAR	A	4,549	—	—	46,293 Direct	+10.90%	Acquired	(price as of 2026-08-19)
May 23, 2024	GEVO	A	224,639	—	—	224,639 Direct	—	Acquired	(price as of 2026-08-19)
May 7, 2024	DAR	A	3,369	—	—	41,744 Direct	+8.78%	Acquired	(price as of 2026-08-19)
Aug. 11, 2023	DAR	P	1,550	$63.97	$99,154	38,375 Direct	+4.21%	Acquired	5.6% (price as of 2026-08-19)
May 23, 2023	GEVO	A	100,807	—	—	255,146 Direct	+65.32%	Acquired	(price as of 2026-08-19)
May 9, 2023	DAR	A	2,571	—	—	36,825 Direct	+7.51%	Acquired	(price as of 2026-08-19)
Aug. 22, 2022	GEVO	S 10b5-1	9,883	$3.08	$30,440	154,339 Direct	-6.02%	Disposed	-50.0% (price as of 2026-08-19)
July 7, 2022	GEVO	S 10b5-1	15,260	$2.53	$38,608	164,222 Direct	-8.50%	Disposed	-39.1% (price as of 2026-08-19)
Aug. 9, 2018	GEVO	A	11,000	—	—	11,044 Direct	+25000.00%	Acquired	(price as of 2026-08-19)
July 30, 2018	GEVO	M	1	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
July 30, 2018	GEVO	M	1	—	—	44 Direct	+2.33%	Acquired	(price as of 2026-08-19)
June 29, 2018	GEVO	M	1	—	—	1 Direct	-50.00%	Disposed	(price as of 2026-08-19)
June 29, 2018	GEVO	M	1	—	—	43 Direct	+2.38%	Acquired	(price as of 2026-08-19)
May 29, 2018	GEVO	M	18	—	—	33 Direct	-35.29%	Disposed	(price as of 2026-08-19)
May 29, 2018	GEVO	F	5	$0.24	$1	832 Direct	-0.60%	Disposed	-67.9% (price as of 2026-08-19)
May 29, 2018	GEVO	M	18	—	—	837 Direct	+2.20%	Acquired	(price as of 2026-08-19)
May 8, 2018	DAR	A	6,567	—	—	19,867 Direct	+49.38%	Acquired	(price as of 2026-08-19)
April 30, 2018	GEVO	M	18	—	—	51 Direct	-26.09%	Disposed	(price as of 2026-08-19)
April 30, 2018	GEVO	F	5	$0.36	$2	819 Direct	-0.61%	Disposed	-78.6% (price as of 2026-08-19)
April 30, 2018	GEVO	M	18	—	—	824 Direct	+2.23%	Acquired	(price as of 2026-08-19)
March 29, 2018	GEVO	M	18	—	—	811 Direct	+2.27%	Acquired	(price as of 2026-08-19)
March 29, 2018	GEVO	M	18	—	—	69 Direct	-20.69%	Disposed	(price as of 2026-08-19)
March 29, 2018	GEVO	F	5	$0.46	$2	806 Direct	-0.62%	Disposed	-83.3% (price as of 2026-08-19)
Feb. 28, 2018	GEVO	M	18	—	—	798 Direct	+2.31%	Acquired	(price as of 2026-08-19)
Feb. 28, 2018	GEVO	F	5	$0.45	$2	793 Direct	-0.63%	Disposed	-82.9% (price as of 2026-08-19)
Feb. 28, 2018	GEVO	M	18	—	—	87 Direct	-17.14%	Disposed	(price as of 2026-08-19)
Jan. 29, 2018	GEVO	M	18	—	—	105 Direct	-14.63%	Disposed	(price as of 2026-08-19)
Jan. 29, 2018	GEVO	F	5	$0.55	$3	780 Direct	-0.64%	Disposed	-86.0% (price as of 2026-08-19)
Jan. 29, 2018	GEVO	M	18	—	—	785 Direct	+2.35%	Acquired	(price as of 2026-08-19)
Dec. 29, 2017	GEVO	M	18	—	—	123 Direct	-12.77%	Disposed	(price as of 2026-08-19)
Dec. 29, 2017	GEVO	F	5	$0.59	$3	767 Direct	-0.65%	Disposed	-86.9% (price as of 2026-08-19)
Dec. 29, 2017	GEVO	M	18	—	—	772 Direct	+2.39%	Acquired	(price as of 2026-08-19)
Nov. 29, 2017	GEVO	M	18	—	—	141 Direct	-11.32%	Disposed	(price as of 2026-08-19)
Nov. 29, 2017	GEVO	F	5	$0.63	$3	754 Direct	-0.66%	Disposed	-87.8% (price as of 2026-08-19)
Nov. 29, 2017	GEVO	M	18	—	—	759 Direct	+2.43%	Acquired	(price as of 2026-08-19)
Oct. 30, 2017	GEVO	M	18	—	—	159 Direct	-10.17%	Disposed	(price as of 2026-08-19)
Oct. 30, 2017	GEVO	F	5	$0.65	$3	741 Direct	-0.67%	Disposed	-88.2% (price as of 2026-08-19)
Oct. 30, 2017	GEVO	M	18	—	—	746 Direct	+2.47%	Acquired	(price as of 2026-08-19)
Sept. 29, 2017	GEVO	M	18	—	—	177 Direct	-9.23%	Disposed	(price as of 2026-08-19)
Sept. 29, 2017	GEVO	F	5	$0.62	$3	728 Direct	-0.68%	Disposed	-87.6% (price as of 2026-08-19)
Sept. 29, 2017	GEVO	M	18	—	—	733 Direct	+2.52%	Acquired	(price as of 2026-08-19)
Aug. 29, 2017	GEVO	M	18	—	—	720 Direct	+2.56%	Acquired	(price as of 2026-08-19)
Aug. 29, 2017	GEVO	M	18	—	—	195 Direct	-8.45%	Disposed	(price as of 2026-08-19)
Aug. 29, 2017	GEVO	F	5	$0.59	$3	715 Direct	-0.69%	Disposed	-86.9% (price as of 2026-08-19)
July 31, 2017	GEVO	M	18	—	—	213 Direct	-7.79%	Disposed	(price as of 2026-08-19)
July 31, 2017	GEVO	F	5	$0.65	$3	702 Direct	-0.71%	Disposed	-88.2% (price as of 2026-08-19)
July 31, 2017	GEVO	M	18	—	—	707 Direct	+2.61%	Acquired	(price as of 2026-08-19)
June 29, 2017	GEVO	M	18	—	—	231 Direct	-7.23%	Disposed	(price as of 2026-08-19)
June 29, 2017	GEVO	F	5	$0.73	$4	689 Direct	-0.72%	Disposed	-89.5% (price as of 2026-08-19)
June 29, 2017	GEVO	M	18	—	—	694 Direct	+2.66%	Acquired	(price as of 2026-08-19)
May 30, 2017	GEVO	M	18	—	—	249 Direct	-6.74%	Disposed	(price as of 2026-08-19)
May 30, 2017	GEVO	F	5	$0.67	$3	676 Direct	-0.73%	Disposed	-88.5% (price as of 2026-08-19)
May 30, 2017	GEVO	M	18	—	—	681 Direct	+2.71%	Acquired	(price as of 2026-08-19)
May 9, 2017	DAR	A	7,097	—	—	13,300 Direct	+114.41%	Acquired	(price as of 2026-08-19)
May 1, 2017	GEVO	M	18	—	—	668 Direct	+2.77%	Acquired	(price as of 2026-08-19)
May 1, 2017	GEVO	F	5	$1.02	$5	663 Direct	-0.75%	Disposed	-92.5% (price as of 2026-08-19)
May 1, 2017	GEVO	M	18	—	—	267 Direct	-6.32%	Disposed	(price as of 2026-08-19)
March 29, 2017	GEVO	M	18	—	—	285 Direct	-5.94%	Disposed	(price as of 2026-08-19)
March 29, 2017	GEVO	F	5	$1.17	$6	650 Direct	-0.76%	Disposed	-93.4% (price as of 2026-08-19)
March 29, 2017	GEVO	M	18	—	—	655 Direct	+2.83%	Acquired	(price as of 2026-08-19)
Feb. 28, 2017	GEVO	M	18	—	—	642 Direct	+2.88%	Acquired	(price as of 2026-08-19)
Feb. 28, 2017	GEVO	F	5	$1.01	$5	637 Direct	-0.78%	Disposed	-92.4% (price as of 2026-08-19)
Feb. 28, 2017	GEVO	M	18	—	—	303 Direct	-5.61%	Disposed	(price as of 2026-08-19)
Jan. 30, 2017	GEVO	M	18	—	—	321 Direct	-5.31%	Disposed	(price as of 2026-08-19)
Jan. 30, 2017	GEVO	F	5	$2.87	$14	624 Direct	-0.79%	Disposed	-97.3% (price as of 2026-08-19)
Jan. 30, 2017	GEVO	M	18	—	—	629 Direct	+2.95%	Acquired	(price as of 2026-08-19)
Dec. 29, 2016	GEVO	M	357	—	—	6,773 Direct	-5.01%	Disposed	(price as of 2026-08-19)
Dec. 29, 2016	GEVO	F	114	$0.20	$23	12,211 Direct	-0.92%	Disposed	-98.1% (price as of 2026-08-19)
Dec. 29, 2016	GEVO	M	357	—	—	12,325 Direct	+2.98%	Acquired	(price as of 2026-08-19)
Nov. 29, 2016	GEVO	M	357	—	—	12,082 Direct	+3.04%	Acquired	(price as of 2026-08-19)
Nov. 29, 2016	GEVO	M	357	—	—	7,130 Direct	-4.77%	Disposed	(price as of 2026-08-19)
Nov. 29, 2016	GEVO	F	114	$0.33	$38	11,968 Direct	-0.94%	Disposed	-98.8% (price as of 2026-08-19)
Oct. 31, 2016	GEVO	M	357	—	—	7,487 Direct	-4.55%	Disposed	(price as of 2026-08-19)
Oct. 31, 2016	GEVO	F	114	$0.40	$46	11,725 Direct	-0.96%	Disposed	-99.0% (price as of 2026-08-19)
Oct. 31, 2016	GEVO	M	357	—	—	11,839 Direct	+3.11%	Acquired	(price as of 2026-08-19)
Sept. 29, 2016	GEVO	M	357	—	—	7,844 Direct	-4.35%	Disposed	(price as of 2026-08-19)
Sept. 29, 2016	GEVO	F	114	$0.49	$56	11,482 Direct	-0.98%	Disposed	-99.2% (price as of 2026-08-19)
Sept. 29, 2016	GEVO	M	357	—	—	11,596 Direct	+3.18%	Acquired	(price as of 2026-08-19)
Aug. 29, 2016	GEVO	M	357	—	—	8,201 Direct	-4.17%	Disposed	(price as of 2026-08-19)
Aug. 29, 2016	GEVO	F	114	$0.59	$67	11,239 Direct	-1.00%	Disposed	-99.3% (price as of 2026-08-19)
Aug. 29, 2016	GEVO	M	357	—	—	11,353 Direct	+3.25%	Acquired	(price as of 2026-08-19)
July 29, 2016	GEVO	M	357	—	—	8,558 Direct	-4.00%	Disposed	(price as of 2026-08-19)
July 29, 2016	GEVO	F	114	$0.53	$60	10,996 Direct	-1.03%	Disposed	-99.3% (price as of 2026-08-19)
July 29, 2016	GEVO	M	357	—	—	11,110 Direct	+3.32%	Acquired	(price as of 2026-08-19)
June 29, 2016	GEVO	M	357	—	—	8,915 Direct	-3.85%	Disposed	(price as of 2026-08-19)
June 29, 2016	GEVO	F	114	$0.61	$70	10,753 Direct	-1.05%	Disposed	-99.4% (price as of 2026-08-19)
June 29, 2016	GEVO	M	357	—	—	10,867 Direct	+3.40%	Acquired	(price as of 2026-08-19)
May 31, 2016	GEVO	M	357	—	—	9,272 Direct	-3.71%	Disposed	(price as of 2026-08-19)
May 31, 2016	GEVO	F	114	$0.35	$40	10,510 Direct	-1.07%	Disposed	-98.9% (price as of 2026-08-19)
May 31, 2016	GEVO	M	357	—	—	10,624 Direct	+3.48%	Acquired	(price as of 2026-08-19)
May 10, 2016	DAR	A	6,203	—	—	6,203 Direct	—	Acquired	(price as of 2026-08-19)
April 29, 2016	GEVO	M	357	—	—	9,629 Direct	-3.58%	Disposed	(price as of 2026-08-19)
April 29, 2016	GEVO	F	114	$0.26	$30	10,267 Direct	-1.10%	Disposed	-98.5% (price as of 2026-08-19)
April 29, 2016	GEVO	M	357	—	—	10,381 Direct	+3.56%	Acquired	(price as of 2026-08-19)
March 29, 2016	GEVO	M	357	—	—	9,986 Direct	-3.45%	Disposed	(price as of 2026-08-19)
March 29, 2016	GEVO	F	114	$0.28	$32	10,024 Direct	-1.12%	Disposed	-98.6% (price as of 2026-08-19)
March 29, 2016	GEVO	M	357	—	—	10,138 Direct	+3.65%	Acquired	(price as of 2026-08-19)
Feb. 29, 2016	GEVO	M	357	—	—	10,343 Direct	-3.34%	Disposed	(price as of 2026-08-19)
Feb. 29, 2016	GEVO	F	114	$0.38	$43	9,781 Direct	-1.15%	Disposed	-99.0% (price as of 2026-08-19)

Showing latest 100 of 130 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
May 23, 2024	GEVO	Stock Option	Common Stock (224,639)	$0.67	May 22, 2034	224,639	Acquired
July 30, 2018	GEVO	Restricted Stock Units	Common Stock (1)	—	—	1	Disposed
June 29, 2018	GEVO	Restricted Stock Units	Common Stock (1)	—	—	1	Disposed
May 29, 2018	GEVO	Restricted Stock Units	Common Stock (18)	—	—	18	Disposed
April 30, 2018	GEVO	Restricted Stock Units	Common Stock (18)	—	—	18	Disposed
March 29, 2018	GEVO	Restricted Stock Units	Common Stock (18)	—	—	18	Disposed
Feb. 28, 2018	GEVO	Restricted Stock Units	Common Stock (18)	—	—	18	Disposed
Jan. 29, 2018	GEVO	Restricted Stock Units	Common Stock (18)	—	—	18	Disposed
Dec. 29, 2017	GEVO	Restricted Stock Units	Common Stock (18)	—	—	18	Disposed
Nov. 29, 2017	GEVO	Restricted Stock Units	Common Stock (18)	—	—	18	Disposed
Oct. 30, 2017	GEVO	Restricted Stock Units	Common Stock (18)	—	—	18	Disposed
Sept. 29, 2017	GEVO	Restricted Stock Units	Common Stock (18)	—	—	18	Disposed
Aug. 29, 2017	GEVO	Restricted Stock Units	Common Stock (18)	—	—	18	Disposed
July 31, 2017	GEVO	Restricted Stock Units	Common Stock (18)	—	—	18	Disposed
June 29, 2017	GEVO	Restricted Stock Units	Common Stock (18)	—	—	18	Disposed
May 30, 2017	GEVO	Restricted Stock Units	Common Stock (18)	—	—	18	Disposed
May 1, 2017	GEVO	Restricted Stock Units	Common Stock (18)	—	—	18	Disposed
March 29, 2017	GEVO	Restricted Stock Units	Common Stock (18)	—	—	18	Disposed
Feb. 28, 2017	GEVO	Restricted Stock Units	Common Stock (18)	—	—	18	Disposed
Jan. 30, 2017	GEVO	Restricted Stock Units	Common Stock (18)	—	—	18	Disposed
Dec. 29, 2016	GEVO	Restricted Stock Units	Common Stock (357)	—	—	357	Disposed
Nov. 29, 2016	GEVO	Restricted Stock Units	Common Stock (357)	—	—	357	Disposed
Oct. 31, 2016	GEVO	Restricted Stock Units	Common Stock (357)	—	—	357	Disposed
Sept. 29, 2016	GEVO	Restricted Stock Units	Common Stock (357)	—	—	357	Disposed
Aug. 29, 2016	GEVO	Restricted Stock Units	Common Stock (357)	—	—	357	Disposed
July 29, 2016	GEVO	Restricted Stock Units	Common Stock (357)	—	—	357	Disposed
June 29, 2016	GEVO	Restricted Stock Units	Common Stock (357)	—	—	357	Disposed
May 31, 2016	GEVO	Restricted Stock Units	Common Stock (357)	—	—	357	Disposed
April 29, 2016	GEVO	Restricted Stock Units	Common Stock (357)	—	—	357	Disposed
March 29, 2016	GEVO	Restricted Stock Units	Common Stock (357)	—	—	357	Disposed
Feb. 29, 2016	GEVO	Restricted Stock Units	Common Stock (357)	—	—	357	Disposed
Jan. 29, 2016	GEVO	Restricted Stock Units	Common Stock (357)	—	—	357	Disposed
Dec. 29, 2015	GEVO	Restricted Stock Units	Common Stock (357)	—	—	357	Disposed
Nov. 29, 2015	GEVO	Restricted Stock Units	Common Stock (357)	—	—	357	Disposed
Oct. 29, 2015	GEVO	Restricted Stock Units	Common Stock (357)	—	—	357	Disposed
Oct. 5, 2015	GEVO	Restricted Stock Units	Common Stock (714)	—	—	714	Disposed
Oct. 5, 2015	GEVO	Non-Qualified Stock Option	Common Stock (13,993)	$2.19	July 29, 2015	13,993	Acquired
Oct. 5, 2015	GEVO	Restricted Stock Units	Common Stock (12,842)	—	—	12,842	Acquired
March 12, 2014	GEVO	Non-Qualified Stock Option (right to buy)	Common Stock (67,204)	$1.46	March 12, 2024	67,204	Acquired
Dec. 16, 2013	GEVO	Common Stock Warrant (right to buy)	Common Stock (18,519)	—	Dec. 16, 2018	18,519	Acquired
March 21, 2013	GEVO	Non-Qualified Stock Option (right to buy)	Common Stock (6,250)	$1.89	March 15, 2023	6,250	Acquired
March 14, 2012	GEVO	Non-Qualified Stock Option (right to buy)	Common Stock (6,250)	$9.41	March 14, 2022	6,250	Acquired
Sept. 15, 2011	GEVO	Non-Qualified Stock Option (right to buy)	Common Stock (10,828)	$8.73	Sept. 15, 2021	10,828	Acquired

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

Initial ownership (Form 3) 1 holding

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

Date	Ticker	Security	Shares	Ownership
May 10, 2016	DAR	No securities beneficially owned	0	Direct