Michael B Gustafson
Insider
First SEC filing: Nov. 18, 2021 · Latest: Nov. 18, 2021
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| 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 2026-10-05) |
| July 1, 2025 | PDFS | A | 7,429 | · | · | 37,503 Direct | +24.70% | Acquired | (price as of 2026-10-05) |
| May 13, 2025 | PDFS | P | 7,500 | $19.45 | $145,875 | 30,074 Direct | +33.22% | Acquired | 188.3% (price as of 2026-10-05) |
| Feb. 24, 2025 | PDFS | P | 4,000 | $23.06 | $92,240 | 22,574 Direct | +21.54% | Acquired | 143.2% (price as of 2026-10-05) |
| July 1, 2024 | PDFS | A | 4,382 | · | · | 18,574 Direct | +30.88% | Acquired | (price as of 2026-10-05) |
| Dec. 13, 2023 | PDFS | S | 4,883 | $30.86 | $150,689 | 14,192 Direct | -25.60% | Disposed | 81.7% (price as of 2026-10-05) |
| Dec. 12, 2023 | PDFS | S | 867 | $31.29 | $27,128 | 19,075 Direct | -4.35% | Disposed | 79.2% (price as of 2026-10-05) |
| July 1, 2023 | PDFS | A | 3,354 | · | · | 19,942 Direct | +20.22% | Acquired | (price as of 2026-10-05) |
| Feb. 28, 2023 | PDFS | S | 13,316 | $37.26 | $496,154 | 16,588 Direct | -44.53% | Disposed | 50.5% (price as of 2026-10-05) |
| Nov. 16, 2022 | PDFS | S | 2,500 | $30.05 | $75,125 | 29,904 Direct | -7.72% | Disposed | 86.6% (price as of 2026-10-05) |
| Nov. 15, 2022 | PDFS | S | 2,500 | $29.79 | $74,475 | 32,404 Direct | -7.16% | Disposed | 88.3% (price as of 2026-10-05) |
| Aug. 18, 2022 | MRAM | M | 11,440 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Aug. 18, 2022 | MRAM | S | 6,390 | $7.32 | $46,775 | 36,748 Direct | -14.81% | Disposed | 148.9% (price as of 2026-10-05) |
| Aug. 18, 2022 | MRAM | S | 11,440 | $7.63 | $87,287 | 43,138 Direct | -20.96% | Disposed | 138.8% (price as of 2026-10-05) |
| Aug. 18, 2022 | MRAM | M | 11,440 | $7.20 | $82,368 | 54,578 Direct | +26.52% | Acquired | 153.1% (price as of 2026-10-05) |
| Aug. 18, 2022 | MRAM | S | 10,397 | $7.50 | $77,978 | 43,138 Direct | -19.42% | Disposed | 142.9% (price as of 2026-10-05) |
| Aug. 17, 2022 | MRAM | M | 560 | · | · | 11,440 Direct | -4.67% | Disposed | (price as of 2026-10-05) |
| Aug. 17, 2022 | MRAM | S | 716 | $8.41 | $6,022 | 53,535 Direct | -1.32% | Disposed | 116.6% (price as of 2026-10-05) |
| Aug. 17, 2022 | MRAM | S | 560 | $8.40 | $4,704 | 54,251 Direct | -1.02% | Disposed | 116.9% (price as of 2026-10-05) |
| Aug. 17, 2022 | MRAM | M | 560 | $7.20 | $4,032 | 54,811 Direct | +1.03% | Acquired | 153.1% (price as of 2026-10-05) |
| Aug. 17, 2022 | MRAM | S | 4,100 | $7.56 | $30,996 | 54,251 Direct | -7.03% | Disposed | 141.0% (price as of 2026-10-05) |
| July 1, 2022 | PDFS | A | 7,212 | · | · | 34,904 Direct | +26.04% | Acquired | (price as of 2026-10-05) |
| Nov. 17, 2021 | MRAM | S | 14,286 | $12.70 | $181,432 | 58,351 Direct | -19.67% | Disposed | 43.5% (price as of 2026-10-05) |
| Nov. 12, 2021 | PDFS | S | 3,000 | $33.00 | $99,000 | 27,692 Direct | -9.77% | Disposed | 69.9% (price as of 2026-10-05) |
| July 1, 2021 | PDFS | A | 4,688 | · | · | 30,692 Direct | +18.03% | Acquired | (price as of 2026-10-05) |
| May 10, 2021 | MRAM | A | 27,992 | · | · | 72,637 Direct | +62.70% | Acquired | (price as of 2026-10-05) |
| Aug. 1, 2020 | PDFS | A | 4,688 | · | · | 26,004 Direct | +21.99% | Acquired | (price as of 2026-10-05) |
| May 19, 2020 | MRAM | A | 21,359 | · | · | 44,645 Direct | +91.72% | Acquired | (price as of 2026-10-05) |
| Nov. 6, 2019 | PDFS | S | 2,214 | $15.75 | $34,870 | 21,316 Direct | -9.41% | Disposed | 256.1% (price as of 2026-10-05) |
| Nov. 5, 2019 | PDFS | S | 386 | $15.97 | $6,164 | 23,530 Direct | -1.61% | Disposed | 251.2% (price as of 2026-10-05) |
| July 1, 2019 | PDFS | A | 4,688 | · | · | 23,916 Direct | +24.38% | Acquired | (price as of 2026-10-05) |
| June 13, 2019 | PDFS | S | 1,000 | $12.95 | $12,950 | 19,228 Direct | -4.94% | Disposed | 333.1% (price as of 2026-10-05) |
| May 21, 2019 | MRAM | A | 12,000 | · | · | 12,000 Direct | · | Acquired | (price as of 2026-10-05) |
| May 21, 2019 | MRAM | A | 6,000 | · | · | 23,286 Direct | +34.71% | Acquired | (price as of 2026-10-05) |
| Nov. 1, 2018 | PDFS | A | 20,228 | · | · | 20,228 Direct | · | Acquired | (price as of 2026-10-05) |
| May 21, 2018 | MRAM | A | 12,000 | · | · | 12,000 Direct | · | Acquired | (price as of 2026-10-05) |
| May 21, 2018 | MRAM | A | 3,000 | · | · | 17,286 Direct | +21.00% | Acquired | (price as of 2026-10-05) |
| Feb. 12, 2018 | MRAM | P | 14,286 | $7.00 | $100,002 | 14,286 Direct | · | Acquired | 160.3% (price as of 2026-10-05) |
| March 24, 2017 | MRAM | A | 16,250 | · | · | 16,250 Direct | · | Acquired | (price as of 2026-10-05) |
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 | $7.20 | May 20, 2029 | 11,440 | Disposed |
| Aug. 17, 2022 | MRAM | Nonqualified Stock Option (Right to Buy) | Common Stock | $7.20 | May 20, 2029 | 560 | Disposed |
| May 21, 2019 | MRAM | Nonqualified Stock Option (Right to Buy) | Common Stock | $7.20 | May 20, 2029 | 12,000 | Acquired |
| May 21, 2018 | MRAM | Nonqualified Stock Option (Right to Buy) | Common Stock | $8.16 | May 20, 2028 | 12,000 | Acquired |
| March 24, 2017 | MRAM | Nonqualified Stock Option (Right to Buy) | Common Stock | $7.88 | March 23, 2027 | 16,250 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).