Harry Vafias — SEC Insider Profile, Roles & Companies

Insider at

04

05

0 buys (P) 0 sells (S) Net: $0 + 11 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
Sept. 18, 2026	GASS	G	47,500	·	·	4,818,363 Direct	+1.00%	Acquired	(price as of 2026-10-02)
Sept. 16, 2026	GASS	M	290,000	$6.43	$1,864,700	4,770,863 Direct	+6.47%	Acquired	45.3% (price as of 2026-10-02)
Sept. 16, 2026	GASS	M	290,000	·	·	0 Direct	-100.00%	Disposed	(price as of 2026-10-02)
Aug. 21, 2026	IMPP	M	149,502	$3.01	$450,001	3,801,008 Direct	+4.09%	Acquired	78.7% (price as of 2026-10-02)
Aug. 21, 2026	IMPP	M	149,502	·	·	149,501 Direct	-50.00%	Disposed	(price as of 2026-10-02)
June 22, 2026	IMPP	A	299,000	·	·	299,000 Direct	·	Acquired	(price as of 2026-10-02)
June 22, 2026	IMPP	G	33,627	·	·	3,651,506 Direct	+0.93%	Acquired	(price as of 2026-10-02)
June 22, 2026	IMPP	A	440,000	·	·	3,617,879 Direct	+13.85%	Acquired	(price as of 2026-10-02)
April 29, 2026	GASS	G	99,623	·	·	4,480,863 Direct	+2.27%	Acquired	(price as of 2026-10-02)
April 27, 2026	GASS	M	100,000	·	·	0 Direct	-100.00%	Disposed	(price as of 2026-10-02)
April 27, 2026	GASS	M	100,000	$6.01	$601,000	4,381,240 Direct	+2.34%	Acquired	55.4% (price as of 2026-10-02)

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.

06

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
Sept. 16, 2026	GASS	Stock Option (Right to Buy)	Common Stock (290,000)	$6.43	Dec. 8, 2033	290,000	Disposed
Aug. 21, 2026	IMPP	Stock Option (Right to Buy)	Common Stock (149,502)	$3.01	Aug. 8, 2035	149,502	Disposed
June 22, 2026	IMPP	Stock Option (Right to Buy)	Common Stock (299,000)	$4.95	June 22, 2036	299,000	Acquired
April 27, 2026	GASS	Stock Option (Right to Buy)	Common Stock (100,000)	$6.01	April 23, 2034	100,000	Disposed

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

07

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

Date	Ticker	Security	Shares	Ownership
March 18, 2026	GASS	Common Stock	4,281,240	Direct
March 18, 2026	GASS	Common Stock	586,020	Indirect
March 18, 2026	GASS	Common Stock	7,105,453	Indirect
March 18, 2026	GASS	Stock Option (Right to Buy)→ Common Stock (90,000)	90,000	Direct
March 18, 2026	GASS	Stock Option (Right to Buy)→ Common Stock (100,000)	100,000	Direct
March 18, 2026	GASS	Stock Option (Right to Buy)→ Common Stock (290,000)	290,000	Direct
March 18, 2026	GASS	Stock Option (Right to Buy)→ Common Stock (100,000)	100,000	Direct
March 18, 2026	IMPP	Common Stock	3,177,879	Direct
March 18, 2026	IMPP	Common Stock	3,307,452	Indirect
March 18, 2026	IMPP	Common Stock	6,991,255	Indirect
March 18, 2026	IMPP	8.75% Series A Cumulative Redeemable Perp. Preferred Stock	24,033	Direct
March 18, 2026	IMPP	8.75% Series A Cumulative Redeemable Perp. Preferred Stock	28,146	Indirect
March 18, 2026	IMPP	8.75% Series A Cumulative Redeemable Perp. Preferred Stock	148,030	Indirect
March 18, 2026	IMPP	Series B Preferred Stock	16,000	Direct
March 18, 2026	IMPP	Stock Option (Right to Buy)→ Common Stock (234,375)	234,375	Direct
March 18, 2026	IMPP	Stock Option (Right to Buy)→ Common Stock (299,003)	299,003	Direct
March 18, 2026	IMPP	Stock Option (Right to Buy)→ Common Stock (50,000)	50,000	Direct
March 18, 2026	CISS	Common Stock	1,162	Direct
March 18, 2026	CISS	Common Stock	3,616	Indirect
March 18, 2026	CISS	Stock Option (Right to Buy)→ Common Stock (500)	500	Direct