Iv David Weild

Insider

First SEC filing: July 20, 2015 · Latest: July 20, 2015

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Insider at

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

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

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Aug. 15, 2023	STEX	A	16,000	—	—	114,999 Direct	+16.16%	Acquired	(price as of 2026-08-20)
April 20, 2023	STEX	A	17,544	—	—	98,999 Direct	+21.54%	Acquired	(price as of 2026-08-20)
Feb. 24, 2023	STEX	A	16,000	—	—	81,455 Direct	+24.44%	Acquired	(price as of 2026-08-20)
Nov. 18, 2022	STEX	A	45,455	—	—	65,455 Direct	+227.27%	Acquired	(price as of 2026-08-20)
Dec. 28, 2021	STEX	A	75,000	—	—	75,000 Direct	—	Acquired	(price as of 2026-08-20)
April 1, 2021	PAVM	A	50,000	—	—	50,000 Direct	—	Acquired	(price as of 2026-08-20)
April 30, 2020	PAVM	A	100,000	—	—	100,000 Direct	—	Acquired	(price as of 2026-08-20)
April 14, 2020	STEX	A	75,000	—	—	75,000 Direct	—	Acquired	(price as of 2026-08-20)
Oct. 30, 2019	STEX	A	36,240	—	—	36,240 Direct	—	Acquired	(price as of 2026-08-20)
March 7, 2019	PAVM	A	200,000	—	—	200,000 Direct	—	Acquired	(price as of 2026-08-20)
Oct. 16, 2018	STEX	A	69,132	—	—	69,132 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 14, 2018	PAVM	A	100,000	—	—	100,000 Direct	—	Acquired	(price as of 2026-08-20)
Nov. 24, 2017	STEX	A	50,000	—	—	50,000 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 22, 2016	STEX	A	50,000	—	—	50,000 Direct	—	Acquired	(price as of 2026-08-20)
April 28, 2016	PAVM	A	97,554	—	—	97,554 Direct	—	Acquired	(price as of 2026-08-20)

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
Dec. 28, 2021	STEX	Stock Option (Right to Buy)	Common Stock (75,000)	$2.44	Dec. 28, 2031	75,000	Acquired
April 1, 2021	PAVM	Employee Stock Option (Right to Buy)	Common Stock (50,000)	$4.44	April 1, 2031	50,000	Acquired
April 30, 2020	PAVM	Employee Stock Option (Right to Buy)	Common Stock (100,000)	$2.19	April 30, 2030	100,000	Acquired
April 14, 2020	STEX	Stock Option (Right to Buy)	Common Stock (75,000)	$4.66	April 14, 2030	75,000	Acquired
Oct. 30, 2019	STEX	Stock Option (Right to Buy)	Common Stock (36,240)	$7.15	Oct. 30, 2029	36,240	Acquired
March 7, 2019	PAVM	Employee Stock Option (Right to Buy)	Common Stock (200,000)	$1.00	March 7, 2029	200,000	Acquired
Oct. 16, 2018	STEX	Stock Option (Right to Buy)	Common Stock (69,132)	$5.09	Oct. 16, 2028	69,132	Acquired
Feb. 14, 2018	PAVM	Employee Stock Option (Right to Buy)	Common Stock (100,000)	$2.01	Feb. 14, 2028	100,000	Acquired
Dec. 22, 2016	STEX	Options to Purchase Common Stock	Common Stock (50,000)	$1.36	Dec. 22, 2026	50,000	Acquired
April 28, 2016	PAVM	Employee Stock Option (Right to Buy)	Common Stock (97,554)	$5.00	April 28, 2026	97,554	Acquired

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
July 20, 2015	STEX	Options to Purchase Common Stock→ Common Stock (300,000)	300,000	Direct