Yorktown Energy Partners VIII, L.P.

Insider

First SEC filing: March 19, 2014 · Latest: March 19, 2014

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Institution

0 buys (P) 0 sells (S) Net: $0 + 4 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

4 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Nov. 12, 2019	AM	S	1,820,463	$6.52	$11,869,419	3,445,636 Direct	-34.57%	Disposed	244.7% (price as of 2026-08-21)
May 21, 2019	AM	S	1,825,600	$12.61	$23,020,816	5,266,099 Direct	-25.74%	Disposed	78.2% (price as of 2026-08-21)
March 12, 2019	AM	D	7,091,699	—	—	7,091,699 Direct	—	Acquired	(price as of 2026-08-21)
March 12, 2019	AM	D	7,091,699	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Nov. 12, 2018	HNRG	J	1,000,000	—	—	1,950,000 Direct	-33.90%	Disposed	(price as of 2026-08-21)
March 10, 2014	1473116	J	800,000	—	—	1,508,720 Direct	-34.65%	Disposed
Oct. 22, 2012	1473116	S	1,632,416	$20.35	$33,219,666	2,308,720 Direct	-41.42%	Disposed

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.

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

Date	Ticker	Security	Shares	Ownership
March 15, 2019	AM	Common shares representing limited partner interests	—	Direct