Michael B Gustafson

Insider

First SEC filing: Nov. 18, 2021 · Latest: Nov. 18, 2021

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 + 14 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

14 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
July 1, 2026	PDFS	A	2,689	—	—	40,192 Direct	+7.17%	Acquired	(price as of 2026-08-20)
Nov. 16, 2022	PDFS	S	2,500	$30.05	$75,125	29,904 Direct	-7.72%	Disposed	51.0% (price as of 2026-08-20)
Nov. 15, 2022	PDFS	S	2,500	$29.79	$74,475	32,404 Direct	-7.16%	Disposed	52.3% (price as of 2026-08-20)
Aug. 18, 2022	MRAM	M	11,440	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Aug. 18, 2022	MRAM	S	6,390	$7.32	$46,775	36,748 Direct	-14.81%	Disposed	132.8% (price as of 2026-08-20)
Aug. 18, 2022	MRAM	S	11,440	$7.63	$87,287	43,138 Direct	-20.96%	Disposed	123.3% (price as of 2026-08-20)
Aug. 18, 2022	MRAM	M	11,440	$7.20	$82,368	54,578 Direct	+26.52%	Acquired	136.7% (price as of 2026-08-20)
Aug. 18, 2022	MRAM	S	10,397	$7.50	$77,978	43,138 Direct	-19.42%	Disposed	127.2% (price as of 2026-08-20)
Aug. 17, 2022	MRAM	M	560	—	—	11,440 Direct	-4.67%	Disposed	(price as of 2026-08-20)
Aug. 17, 2022	MRAM	S	716	$8.41	$6,022	53,535 Direct	-1.32%	Disposed	102.6% (price as of 2026-08-20)
Aug. 17, 2022	MRAM	S	560	$8.40	$4,704	54,251 Direct	-1.02%	Disposed	102.9% (price as of 2026-08-20)
Aug. 17, 2022	MRAM	M	560	$7.20	$4,032	54,811 Direct	+1.03%	Acquired	136.7% (price as of 2026-08-20)
Aug. 17, 2022	MRAM	S	4,100	$7.56	$30,996	54,251 Direct	-7.03%	Disposed	125.4% (price as of 2026-08-20)
July 1, 2022	PDFS	A	7,212	—	—	34,904 Direct	+26.04%	Acquired	(price as of 2026-08-20)
Nov. 17, 2021	MRAM	S	14,286	$12.70	$181,432	58,351 Direct	-19.67%	Disposed	34.2% (price as of 2026-08-20)
Nov. 12, 2021	PDFS	S	3,000	$33.00	$99,000	27,692 Direct	-9.77%	Disposed	37.5% (price as of 2026-08-20)
July 1, 2021	PDFS	A	4,688	—	—	30,692 Direct	+18.03%	Acquired	(price as of 2026-08-20)
May 10, 2021	MRAM	A	27,992	—	—	72,637 Direct	+62.70%	Acquired	(price as of 2026-08-20)
May 19, 2020	MRAM	A	21,359	—	—	44,645 Direct	+91.72%	Acquired	(price as of 2026-08-20)
May 21, 2019	MRAM	A	12,000	—	—	12,000 Direct	—	Acquired	(price as of 2026-08-20)
May 21, 2019	MRAM	A	6,000	—	—	23,286 Direct	+34.71%	Acquired	(price as of 2026-08-20)
May 21, 2018	MRAM	A	12,000	—	—	12,000 Direct	—	Acquired	(price as of 2026-08-20)
May 21, 2018	MRAM	A	3,000	—	—	17,286 Direct	+21.00%	Acquired	(price as of 2026-08-20)
Feb. 12, 2018	MRAM	P	14,286	$7.00	$100,002	14,286 Direct	—	Acquired	143.4% (price as of 2026-08-20)
March 24, 2017	MRAM	A	16,250	—	—	16,250 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
Aug. 18, 2022	MRAM	Nonqualified Stock Option (Right to Buy)	Common Stock (11,440)	$7.20	May 20, 2029	11,440	Disposed
Aug. 17, 2022	MRAM	Nonqualified Stock Option (Right to Buy)	Common Stock (560)	$7.20	May 20, 2029	560	Disposed
May 21, 2019	MRAM	Nonqualified Stock Option (Right to Buy)	Common Stock (12,000)	$7.20	May 20, 2029	12,000	Acquired
May 21, 2018	MRAM	Nonqualified Stock Option (Right to Buy)	Common Stock (12,000)	$8.16	May 20, 2028	12,000	Acquired
March 24, 2017	MRAM	Nonqualified Stock Option (Right to Buy)	Common Stock (16,250)	$7.88	March 23, 2027	16,250	Acquired

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