Thomas J. Schaefer — SEC Insider Profile, Roles & Companies

Insider at

04

05

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
May 9, 2025	RKDA	A	12,500	·	·	37,975 Direct	+49.07%	Acquired	(price as of 2026-10-02)
Feb. 3, 2025	RKDA	P	700	$2.49	$1,743	2,819 Direct	+33.03%	Acquired	-88.4% (price as of 2026-10-02)
Aug. 19, 2024	RKDA	A	20,000	·	·	25,475 Direct	+365.30%	Acquired	(price as of 2026-10-02)
Aug. 1, 2024	RKDA	P	700	$2.06	$1,442	2,119 Direct	+49.33%	Acquired	-86.0% (price as of 2026-10-02)
Feb. 1, 2024	RKDA	P	700	$2.06	$1,442	1,419 Direct	+97.36%	Acquired	-86.0% (price as of 2026-10-02)
Aug. 4, 2023	RKDA	P	649	$3.67	$2,382	719 Direct	+927.14%	Acquired	-92.1% (price as of 2026-10-02)
April 4, 2023	RKDA	A	1,500	·	·	5,475 Direct	+37.74%	Acquired	(price as of 2026-10-02)
Feb. 1, 2023	RKDA	P	700	$0.23	$161	2,800 Direct	+33.33%	Acquired	-96.9% (price as of 2026-10-02)
Jan. 3, 2023	RKDA	A	50,000	·	·	159,000 Direct	+45.87%	Acquired	(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
May 9, 2025	RKDA	Stock Option (Right to Buy)	Common Stock (12,500)	$3.88	May 9, 2035	12,500	Acquired
Aug. 19, 2024	RKDA	Stock Option (Right to Buy)	Common Stock (20,000)	$2.71	Aug. 19, 2034	20,000	Acquired
April 4, 2023	RKDA	Stock Option (Right to Buy)	Common Stock (1,500)	$7.55	April 4, 2033	1,500	Acquired
Jan. 3, 2023	RKDA	Stock Option (Right to Buy)	Common Stock (50,000)	$0.28	Jan. 3, 2033	50,000	Acquired

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
Jan. 5, 2023	RKDA	Common Stock	2,100	Direct
Jan. 5, 2023	RKDA	Stock Option (Right to Buy)→ Common Stock (8,000)	8,000	Direct
Jan. 5, 2023	RKDA	Stock Option (Right to Buy)→ Common Stock (4,000)	4,000	Direct
Jan. 5, 2023	RKDA	Stock Option (Right to Buy)→ Common Stock (20,000)	20,000	Direct
Jan. 5, 2023	RKDA	Stock Option (Right to Buy)→ Common Stock (23,000)	23,000	Direct
Jan. 5, 2023	RKDA	Stock Option (Right to Buy)→ Common Stock (31,000)	31,000	Direct
Jan. 5, 2023	RKDA	Stock Option (Right to Buy)→ Common Stock (23,000)	23,000	Direct