GUSTAFSON MICHAEL B

PDFS

GUSTAFSON MICHAEL B serves as an insider at PDF Solutions, Inc. (PDFS). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

2 trades

$238.1K

Total Sells

6 trades

$1.36M

Net Position

Net Seller

$1.12M

Companies Traded

PDFS, MRAM

Active Period

Nov 2021 – May 2025

8 total trades

Most Recent

Buy PDFS

May 14, 2025 · $145.9K

GUSTAFSON MICHAEL B's Insider Trading at PDF Solutions, Inc. (PDFS)

Buys

2 · $238.1K

Sells

4 · $922.6K

Total Shares Bought

11,500

Total Shares Sold

27,066

PDFS Price Chart

Loading chart...

Date	Type	Shares	Avg Price	Value	Shares After
May 14, 2025	Buy	7,500	$19.45	$145.9K	30,074
Feb 25, 2025	Buy	4,000	$23.06	$92.2K	22,574
Dec 14, 2023	Sell	5,750	$30.92	$177.8K	19,075
Mar 2, 2023	Sell	13,316	$37.26	$496.2K	16,588
Nov 17, 2022	Sell	5,000	$29.92	$149.6K	32,404
Nov 15, 2021	Sell	3,000	$33.00	$99.0K	27,692

GUSTAFSON MICHAEL B's Insider Trading at Everspin Technologies, Inc. (MRAM)

Buys

0 · $0.00

Sells

2 · $435.2K

Total Shares Bought

Total Shares Sold

47,889

MRAM Price Chart

Loading chart...

Date	Type	Shares	Avg Price	Value	Shares After
Aug 19, 2022	Sell	33,603	$7.55	$253.8K	54,251
Nov 18, 2021	Sell	14,286	$12.70	$181.4K	58,351

Related Insiders

Sanjeev Aggarwal

PRESIDENT AND CEO

MRAMSell · Apr 2, 2026

William Earl Cooper

officer: Chief Financial Officer

MRAMSell · Apr 2, 2026

Tara Long

Director

MRAMSell · Nov 25, 2025

Darin G Billerbeck

Director

MRAMSell · Nov 10, 2025

David Schrenk

VP SALES & BUS. DEVELOPMENT

MRAMSell · May 28, 2025

Explore More Insider Trading Data

PDFS Insider Trading Activity

View all insider trades at PDF Solutions, Inc.

Technology Sector Insider Trades

See insider activity across technology stocks

Latest Insider Buys

Most recent insider purchases across all stocks

CEO Stock Purchases

Track CEO buying activity