Donald Allen Williams

CIK 1620013 · View on SEC EDGAR ↗

Insider

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

On this page

Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.

Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 24 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

24 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 10, 2026	PALI	M	60,666	—	—	121,334 Direct	-33.33%	Disposed	(price as of 2026-08-20)
June 10, 2026	PALI	M	60,666	—	—	1,570,294 Direct	+4.02%	Acquired	(price as of 2026-08-20)
June 10, 2026	PALI	A	1,498,900	—	—	1,509,628 Direct	+13971.85%	Acquired	(price as of 2026-08-20)
Aug. 20, 2024	FBRX	A	50,000	—	—	50,000 Direct	—	Acquired	(price as of 2026-08-20)
Sept. 19, 2023	FBRX	A	25,000	—	—	25,000 Direct	—	Acquired	(price as of 2026-08-20)
July 31, 2023	FBRX	A	59,405	$1.01	$59,999	59,405 Direct	—	Acquired	204.7% (price as of 2026-08-20)
June 1, 2022	FBRX	A	25,000	—	—	25,000 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 23, 2022	FBRX	A	25,000	—	—	25,000 Direct	—	Acquired	(price as of 2026-08-20)
Nov. 18, 2021	PALI	A	48,340	—	—	48,340 Direct	—	Acquired	(price as of 2026-08-20)
June 16, 2021	ATEC	A	10,221	—	—	134,728 Direct	+8.21%	Acquired	(price as of 2026-08-20)
May 28, 2021	FBRX	A	20,000	—	—	20,000 Direct	—	Acquired	(price as of 2026-08-20)
April 27, 2021	PALI	A	4,406	—	—	4,406 Direct	—	Acquired	(price as of 2026-08-20)
April 27, 2021	PALI	A	10,203	—	—	10,203 Direct	—	Acquired	(price as of 2026-08-20)
June 17, 2020	ATEC	A	26,956	—	—	124,507 Direct	+27.63%	Acquired	(price as of 2026-08-20)
June 15, 2020	FBRX	A	30,000	—	—	30,000 Direct	—	Acquired	(price as of 2026-08-20)
June 21, 2019	ATEC	A	18,086	—	—	64,519 Direct	+38.95%	Acquired	(price as of 2026-08-20)
March 12, 2019	ATEC	P	4,000	$2.47	$9,880	46,433 Direct	+9.43%	Acquired	289.1% (price as of 2026-08-20)
July 30, 2018	ATEC	A	20,492	—	—	42,433 Direct	+93.40%	Acquired	(price as of 2026-08-20)
April 25, 2017	ATEC	A	28,090	—	—	28,090 Direct	—	Acquired	(price as of 2026-08-20)
April 25, 2017	ATEC	A	18,939	—	—	21,941 Direct	+630.88%	Acquired	(price as of 2026-08-20)
Dec. 12, 2016	ATEC	A	3,303	$4.43	$14,632	6,569 Direct	+101.13%	Acquired	116.9% (price as of 2026-08-20)
June 29, 2016	AKTX	A	1,300,000	—	—	1,300,000 Direct	—	Acquired	(price as of 2026-08-20)
June 29, 2016	AKTX	A	1,300,000	—	—	1,300,000 Direct	—	Acquired	(price as of 2026-08-20)
May 5, 2015	ATEC	P	5,000	$1.32	$6,600	36,034 Direct	+16.11%	Acquired	-39.3% (price as of 2026-08-20)
May 1, 2015	ATEC	A	39,192	$1.42	$55,653	39,192 Direct	—	Acquired	-43.6% (price as of 2026-08-20)
May 1, 2015	ATEC	A	31,034	—	—	31,034 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.

Derivative holdings (Form 4 Table II)

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

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
June 10, 2026	PALI	Restricted Stock Units	Common Stock (60,666)	—	—	60,666	Disposed
Aug. 20, 2024	FBRX	Stock Option (right to buy)	Common Stock (50,000)	$0.34	Aug. 20, 2034	50,000	Acquired
Sept. 19, 2023	FBRX	Stock Option (right to buy)	Common Stock (25,000)	$0.80	Sept. 19, 2033	25,000	Acquired
June 1, 2022	FBRX	Stock Option (right to buy)	Common Stock (25,000)	$1.27	June 1, 2032	25,000	Acquired
Feb. 23, 2022	FBRX	Stock Option (right to buy)	Common Stock (25,000)	$1.27	Feb. 23, 2032	25,000	Acquired
Nov. 18, 2021	PALI	Stock Option (right to buy)	Common Stock (48,340)	$2.32	Nov. 17, 2032	48,340	Acquired
May 28, 2021	FBRX	Stock Option (right to buy)	Common Stock (20,000)	$35.54	May 28, 2031	20,000	Acquired
April 27, 2021	PALI	Stock Option (Right to Buy)	Common Stock (4,406)	$26.85	July 10, 2030	4,406	Acquired
April 27, 2021	PALI	Stock Option (Right to Buy)	Common Stock (10,203)	$41.20	June 19, 2029	10,203	Acquired
June 15, 2020	FBRX	Stock Option (right to buy)	Common Stock (30,000)	$18.90	June 15, 2030	30,000	Acquired
April 25, 2017	ATEC	Stock Option (right to buy)	Common Stock (28,090)	$1.98	April 25, 2027	28,090	Acquired
Dec. 12, 2016	ATEC	NQ Stock Option	Common Sock (3,303)	$4.43	Dec. 12, 2026	3,303	Acquired
June 29, 2016	AKTX	Options to Purchase Ordinary Shares	Ordinary Shares (1,300,000)	$0.15	June 29, 2026	1,300,000	Acquired
June 29, 2016	AKTX	Options to Purchase Ordinary Shares	Ordinary Shares (1,300,000)	$0.15	June 29, 2026	1,300,000	Acquired
May 1, 2015	ATEC	NQ Stock Option	Common Stock (39,192)	$1.42	May 1, 2025	39,192	Acquired

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