Charles V Olson

Insider

First SEC filing: Dec. 13, 2016 · Latest: May 29, 2026

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Insider at

0 buys (P) 0 sells (S) Net: $0 + 6 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
May 27, 2026	EDSA	A	19,000	—	—	30,000 Direct	+172.73%	Acquired	(price as of 2026-08-19)
May 29, 2025	EDSA	A	11,000	—	—	11,000 Direct	—	Acquired	(price as of 2026-08-19)
March 12, 2019	EDSA	A	357	—	—	357 Direct	—	Acquired	(price as of 2026-08-19)
March 12, 2018	EDSA	A	2,500	—	—	2,500 Direct	—	Acquired	(price as of 2026-08-19)
March 23, 2017	EDSA	A	2,500	—	—	2,500 Direct	—	Acquired	(price as of 2026-08-19)
Dec. 20, 2016	EDSA	A	2,500	—	—	2,500 Direct	—	Acquired	(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
March 12, 2019	EDSA	Share Option (Right to Buy)	Common Shares (357)	$1.25	March 12, 2026	357	Acquired
March 12, 2018	EDSA	Share Option (Right to Buy)	Common Shares (2,500)	$0.84	March 12, 2025	2,500	Acquired
March 23, 2017	EDSA	Share Option (Right to Buy)	Common Shares (2,500)	$1.67	March 23, 2024	2,500	Acquired
Dec. 20, 2016	EDSA	Share Option (Right to Buy)	Common Shares (2,500)	$2.03	Dec. 20, 2023	2,500	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
Dec. 13, 2016	EDSA	Share Option (Right to Buy)→ Common Shares (1,250)	1,250	Direct