Corey Amthor

Insider

First SEC filing: June 9, 2026 · Latest: June 12, 2026

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Insider at

0 buys (P) 0 sells (S) Net: $0 + 2 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

No open-market trades on record; showing all filings.

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 11, 2026	EROC	D	617,442	$19.85	$12,256,224	4,088,432 Direct	-13.12%	Disposed	-22.9% (price as of 2026-08-19)
June 11, 2026	EROC	D	617,442	—	—	4,088,432 Direct	-13.12%	Disposed	(price as of 2026-08-19)

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.

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
June 11, 2026	EROC	Class B Units	Class A Common Stock (617,442)	—	—	617,442	Disposed

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

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

Date	Ticker	Security	Shares	Ownership
June 9, 2026	EROC	Class B Common Stock	4,705,874	Direct
June 9, 2026	EROC	Class B Common Stock	1,534,876	Indirect
June 9, 2026	EROC	Class B Units→ Class A Common Stock (4,705,874)	4,705,874	Direct
June 9, 2026	EROC	Class B Units→ Class A Common Stock (1,534,876)	1,534,876	Indirect
June 9, 2026	EROC	Class M Units→ Class A Common Stock (149,898)	149,898	Indirect
June 9, 2026	EROC	Class M Units→ Class A Common Stock (143,903)	143,903	Indirect
June 9, 2026	EROC	Class M Units→ Class A Common Stock (1,740,823)	1,740,823	Indirect
June 9, 2026	EROC	Class M Units→ Class A Common Stock (3,783,440)	3,783,440	Indirect