GUSTAFSON MICHAEL B
Director · PDFS, MTTR
As of 2026-09-16, GUSTAFSON MICHAEL B has 15 Form 4 transactions on record across 2 companies — 2 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Reconstructed holdings
- Direct $1.7M
- Indirect $0
| PDFS | direct | 40,192 sh | $1.7M |
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2025-05-13 | PDFS | Purchase | 7,500 @ $19.45 | $146K | +33.2% of holding | 30,074 | Form 4 |
| 2025-02-24 | PDFS | Purchase | 4,000 @ $23.06 | $92K | +21.5% of holding | 22,574 | Form 4 |
13 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-07-01 | PDFS | Award / grant | 2,689 | 40,192 | Form 4 |
| 2026-07-01 | PDFS | Award / grant | 2,689 | 40,192 | Form 4 |
| 2025-07-01 | PDFS | Award / grant | 7,429 | 37,503 | Form 4 |
| 2025-07-01 | PDFS | Award / grant | 7,429 | 37,503 | Form 4 |
| 2025-02-28 | MTTR | Disposition | 39,325 | 0 | Form 4 |
| 2025-02-28 | MTTR | Disposition | 33,024 | 0 | Form 4 |
| 2025-02-28 | MTTR | Disposition | 718,169 | 0 | Form 4 |
| 2025-02-28 | MTTR | Disposition | 33,024 | 0 | Form 4 |
| 2025-02-28 | MTTR | Disposition | 718,169 | 0 | Form 4 |
| 2025-02-19 | MTTR | Option exercise | 458,653 | 701,177 | Form 4 |
| 2025-02-19 | MTTR | Option exercise | 16,992 | 718,169 | Form 4 |
| 2025-02-19 | MTTR | Option exercise | 458,653 | 0 | Form 4 |
| 2025-02-19 | MTTR | Option exercise | 16,992 | 0 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.