James J Barber

Insider

First SEC filing: June 3, 2026 · Latest: June 3, 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 + 25 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

25 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 2, 2026	GHM	M	1,956	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
June 2, 2026	GHM	M	1,956	—	—	55,791 Direct	+3.63%	Acquired	(price as of 2026-08-21)
June 1, 2026	GHM	A	905	—	—	905 Direct	—	Acquired	(price as of 2026-08-21)
May 27, 2026	GEVO	A	70,000	—	—	70,000 Direct	—	Acquired	(price as of 2026-08-21)
June 4, 2025	GHM	M	2,934	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
June 4, 2025	GHM	M	2,934	—	—	53,835 Direct	+5.76%	Acquired	(price as of 2026-08-21)
June 2, 2025	GHM	A	1,956	—	—	1,956 Direct	—	Acquired	(price as of 2026-08-21)
June 4, 2024	GHM	A	2,934	—	—	2,934 Direct	—	Acquired	(price as of 2026-08-21)
May 17, 2024	GHM	M	6,393	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
May 17, 2024	GHM	M	6,393	—	—	50,901 Direct	+14.36%	Acquired	(price as of 2026-08-21)
May 23, 2023	GHM	M	6,105	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
May 23, 2023	GHM	M	6,105	—	—	44,508 Direct	+15.90%	Acquired	(price as of 2026-08-21)
May 17, 2023	GHM	A	6,393	—	—	6,393 Direct	—	Acquired	(price as of 2026-08-21)
May 23, 2022	GHM	A	6,105	—	—	6,105 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 11, 2022	GHM	P	6,600	$9.20	$60,720	38,403 Direct	+20.75%	Acquired	997.5% (price as of 2026-08-21)
Sept. 10, 2021	GHM	P	100	$12.35	$1,235	31,803 Direct	+0.32%	Acquired	717.6% (price as of 2026-08-21)
Sept. 9, 2021	GHM	P	4,396	$12.49	$54,906	31,703 Direct	+16.10%	Acquired	708.4% (price as of 2026-08-21)
Sept. 8, 2021	GHM	P	504	$12.60	$6,350	27,307 Direct	+1.88%	Acquired	701.3% (price as of 2026-08-21)
June 1, 2021	GHM	A	3,265	—	—	26,803 Direct	+13.87%	Acquired	(price as of 2026-08-21)
June 9, 2020	GHM	A	3,543	—	—	23,538 Direct	+17.72%	Acquired	(price as of 2026-08-21)
May 29, 2019	GHM	A	2,450	—	—	19,995 Direct	+13.96%	Acquired	(price as of 2026-08-21)
May 30, 2018	GHM	A	955	—	—	17,545 Direct	+5.76%	Acquired	(price as of 2026-08-21)
May 31, 2017	GHM	A	1,194	—	—	16,590 Direct	+7.76%	Acquired	(price as of 2026-08-21)
May 24, 2016	GHM	A	1,351	—	—	15,396 Direct	+9.62%	Acquired	(price as of 2026-08-21)
Sept. 8, 2015	GHM	P	3,000	$17.00	$51,000	14,045 Direct	+27.16%	Acquired	493.9% (price as of 2026-08-21)
May 28, 2015	GHM	A	1,081	—	—	11,045 Direct	+10.85%	Acquired	(price as of 2026-08-21)
Feb. 4, 2015	GHM	P	1,200	$21.60	$25,920	9,964 Direct	+13.69%	Acquired	367.5% (price as of 2026-08-21)
Feb. 3, 2015	GHM	P	1,200	$22.00	$26,400	8,764 Direct	+15.86%	Acquired	359.0% (price as of 2026-08-21)
May 29, 2014	GHM	A	885	—	—	7,564 Direct	+13.25%	Acquired	(price as of 2026-08-21)
Aug. 6, 2013	GHM	P	1,800	$33.65	$60,570	6,679 Direct	+36.89%	Acquired	200.1% (price as of 2026-08-21)
Aug. 6, 2013	GHM	P	1,199	$33.67	$40,370	4,879 Direct	+32.58%	Acquired	199.9% (price as of 2026-08-21)
Aug. 6, 2013	GHM	P	1	$33.25	$33	3,680 Direct	+0.03%	Acquired	203.7% (price as of 2026-08-21)
May 30, 2013	GHM	A	1,042	—	—	3,679 Direct	+39.51%	Acquired	(price as of 2026-08-21)
May 30, 2012	GHM	A	1,340	—	—	2,637 Direct	+103.32%	Acquired	(price as of 2026-08-21)
July 28, 2011	GHM	A	1,297	—	—	1,297 Direct	—	Acquired	(price as of 2026-08-21)

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 2, 2026	GHM	Restricted Stock Units	Common Stock (1,956)	—	—	1,956	Disposed
June 1, 2026	GHM	Restricted Stock Units	Common Stock (905)	—	—	905	Acquired
June 4, 2025	GHM	Restricted Stock Units	Common Stock (2,934)	—	—	2,934	Disposed
June 2, 2025	GHM	Restricted Stock Units	Common Stock (1,956)	—	—	1,956	Acquired
June 4, 2024	GHM	Restricted Stock Units	Common Stock (2,934)	—	—	2,934	Acquired
May 17, 2024	GHM	Restricted Stock Units	Common Stock (6,393)	—	—	6,393	Disposed
May 23, 2023	GHM	Restricted Stock Units	Common Stock (6,105)	—	—	6,105	Disposed
May 17, 2023	GHM	Restricted Stock Units	Common Stock (6,393)	—	—	6,393	Acquired
May 23, 2022	GHM	Restricted Stock Units	Common Stock (6,105)	—	—	6,105	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 28, 2025	GEVO	Stock Option [F1]→ Common Stock (134,517)	134,517	Direct