InsidersTradesSigma
Total declarations
Companies
▲ Purchases (2 ops.)
▼ Sales (8 ops.)
Insider track record
Board DirectorDisclosed buys
2
Disclosed sells
8
T+90 hit rate
38%
T+90 mean return
-7.1%
Across 8 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Explore the detailed record of transactions filed by GUSTAFSON MICHAEL B, Director. Officer active across 4 companies, notably PDF Solutions INC. Cumulatively, 25 disclosures have been logged. Breakdown: 2 buys · 8 sells. Total volume traded: €1.3m. History available since 12 November 2021. The latest transaction was filed on 13 May 2025 (Acquisition). Regulator: SEC (Form 4). The full history is openly available.
Declarations25 total
7,500 shares@ US$19.4513.6% of flowCommon StockSEC:0001415889-25-012951:0
Ideal exit: 7 Feb 2026 (T+270)
718,169 sharesClass A Common StockSEC:0001104659-25-019791:0
4,000 shares@ US$23.069.2% of flowCommon StockSEC:0001415889-25-005624:0
Ideal exit: 21 Nov 2025 (T+270)
458,653 shares@ US$0.3472100.0% of flowClass A Common StockSEC:0001562180-25-001451:0
4,382 sharesCommon StockSEC:0001415889-24-018714:0
60,763 shares0Class A Common StockSEC:0001562180-24-005011:0
867 shares@ US$31.292.6% of flowCommon StockSEC:0001415889-23-016447:0
3,354 sharesCommon StockSEC:0001415889-23-010692:0
38,126 shares0Class A Common StockSEC:0001562180-23-005132:0
13,316 shares@ US$37.2648.9% of flowCommon StockSEC:0001415889-23-003733:0
2,500 shares@ US$29.797.5% of flowCommon StockSEC:0001415889-22-011490:0
4,100 shares@ US$7.568.7% of flowCommon StockSEC:0001209191-22-046906:0
7,212 sharesCommon StockSEC:0001415889-22-007425:0
29,724 sharesClass A Common StockSEC:0000899243-22-004863
29,724 sharesClass A Common StockSEC:0000899243-22-004863:0
27,992 shares0Common StockSEC:0001104659-21-141417:0
27,992 shares0Common StockSEC:0001104659-21-141417
14,286 shares@ US$12.7045.7% of flowCommon StockSEC:0001104659-21-141428
14,286 shares@ US$12.700.018% mcap50.0% of flowCommon StockSEC:0001104659-21-141428:0
3,000 shares@ US$32.99730.0077% mcap50.0% of flowCommon StockSEC:0001415889-21-005205:0
3,000 shares@ US$32.99739.0% of flowCommon StockSEC:0001415889-21-005205
81,759 sharesClass A Common StockSEC:0000899243-21-030096
81,759 sharesClass A Common StockSEC:0000899243-21-030096:0
4,688 sharesCommon StockSEC:0001104659-21-088954:0
4,688 sharesCommon StockSEC:0001104659-21-088954
25 of 25 declarations
About GUSTAFSON MICHAEL B
Michael B. Gustafson is a Board Member of PDF Solutions Inc., Gores Holdings VI, Inc., and Everspin Technologies Inc. He brings expertise in corporate strategy and technological innovation. His role on the boards allows him to contribute to the strategic direction of these companies. Through his experience, he helps guide growth initiatives and strengthen their market positions.
