Ejnar A Knudsen III

Insider Activist

First SEC filing: May 11, 2016 · Latest: Nov. 20, 2025

On this page

Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Initial holdings The stakes this person held when they first started reporting.

Insider at

GPRE buying Feb. 12, 2024

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 15 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

15 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 9, 2025	GPRE	F	1,472	$4.07	$5,991	44,977 Direct	-3.17%	Disposed	307.1% (price as of 2026-08-21)
May 10, 2024	GPRE	F	1,151	$19.98	$22,997	46,449 Direct	-2.42%	Disposed	-17.1% (price as of 2026-08-21)
May 9, 2024	GPRE	A	6,687	$20.19	$135,011	47,600 Direct	+16.34%	Acquired	-17.9% (price as of 2026-08-21)
Feb. 12, 2024	GPRE	P	4,000	$24.73	$98,920	40,913 Direct	+10.84%	Acquired	-33.0% (price as of 2026-08-21)
May 11, 2023	GPRE	A	4,497	$30.02	$135,000	35,913 Direct	+14.31%	Acquired	-44.8% (price as of 2026-08-21)
May 11, 2023	GPRE	P	1,000	$30.05	$30,050	36,913 Direct	+2.78%	Acquired	-44.9% (price as of 2026-08-21)
May 5, 2023	GPRE	F	1,053	$31.83	$33,517	31,416 Direct	-3.24%	Disposed	-47.9% (price as of 2026-08-21)
May 7, 2022	GPRE	F	1,188	$32.13	$38,170	32,469 Direct	-3.53%	Disposed	-48.4% (price as of 2026-08-21)
May 6, 2022	GPRE	A	3,891	$32.13	$125,018	33,657 Direct	+13.07%	Acquired	-48.4% (price as of 2026-08-21)
Nov. 10, 2021	GPRE	S	64,226	$39.98	$2,567,755	29,766 Direct	-68.33%	Disposed	-58.6% (price as of 2026-08-21)
May 7, 2021	GPRE	A	4,505	$27.75	$125,014	93,992 Direct	+5.03%	Acquired	-40.3% (price as of 2026-08-21)
May 8, 2020	GPRE	A	17,531	$7.13	$124,996	89,487 Direct	+24.36%	Acquired	132.4% (price as of 2026-08-21)
March 20, 2020	GPRE	P	30,000	$4.79	$143,700	71,956 Direct	+71.50%	Acquired	245.9% (price as of 2026-08-21)
May 10, 2019	GPRE	A	7,730	$16.17	$124,994	41,956 Direct	+22.59%	Acquired	2.5% (price as of 2026-08-21)
May 11, 2018	GPRE	A	6,476	$19.30	$124,987	35,519 Direct	+22.30%	Acquired	-14.1% (price as of 2026-08-21)
May 11, 2018	GPRE	F	1,293	$19.30	$24,955	34,226 Direct	-3.64%	Disposed	-14.1% (price as of 2026-08-21)
Nov. 30, 2017	GPRE	P	15,483	$16.54	$256,089	29,043 Direct	+114.18%	Acquired	0.2% (price as of 2026-08-21)
May 11, 2017	GPRE	A	4,940	$25.30	$124,982	13,560 Direct	+57.31%	Acquired	-34.5% (price as of 2026-08-21)
May 13, 2016	GPRE	A	140	$14.74	$2,064	140 Direct	—	Acquired	12.4% (price as of 2026-08-21)
May 13, 2016	GPRE	A	8,480	$14.74	$124,995	8,620 Direct	+6057.14%	Acquired	12.4% (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.

Initial ownership (Form 3) 1 holding

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

Date	Ticker	Security	Shares	Ownership
May 11, 2016	GPRE	Common Stock	0	Direct