Insider · CIK 0001245081
Michael B Gustafson
Files at PDFS (PDF SOLUTIONS INC), MTTR (Matterport, Inc./DE). First filing Dec 14, 2023, latest May 14, 2025.
In brief
Michael B Gustafson files SEC Form 4 as director at PDFS (PDF SOLUTIONS INC), and also at MTTR (Matterport, Inc./DE). Since Dec 14, 2023, Michael B Gustafson has reported 2 open-market buys worth $238k and 1 open-market sell worth $178k, the latest filed on May 14, 2025.
A track record needs three past buys with six months of prices behind them; Michael B Gustafson has 2, so none is measured yet.
The newest scored trade: bought $146k of PDFS on May 13, 2025, filed May 14, 2025, scored 45 (moderate).
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
PDFS: PDF SOLUTIONS INC
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 45Moderate | PDFSbuy PDF SOLUTIONS INC | $146k 7,500 shares | +33% | +18% from low-42% from high | |
| 38Weak | PDF SOLUTIONS INC | $92k 4,000 shares | +22% | - | |
| 45Moderate | PDF SOLUTIONS INC | $178k 5,750 shares | -29% | +17% from low-35% from high |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Dec 12, 2023 | PDFS PDF SOLUTIONS INC | 5,750 0.01% of outstanding | $180k | Dec 12, 2023 | none |
Transactions
Every row this insider has filed, 13 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Jul 1, 2026 | PDFS PDF SOLUTIONS INC | AGrant or award Common Stock | +2,689 | - | - | 40,192 | Jul 2, 2026 |
| Jul 1, 2025 | PDFS PDF SOLUTIONS INC | AGrant or award Common Stock | +7,429 | - | - | 37,503 | Jul 2, 2025 |
| May 13, 2025 | PDFS PDF SOLUTIONS INC | POpen-market purchase Common Stock | +7,500 | $19.45 | $146k | 30,074 | May 14, 2025 |
| Feb 28, 2025 | MTTR Matterport, Inc./DE | DDisposition to issuer Class A Common Stock | -718,169 | - | - | 0 | Mar 3, 2025 |
| Feb 28, 2025 | MTTR Matterport, Inc./DE | DDisposition to issuer Class A Common Stockindirect: By Trusts | -33,024 | - | - | 0 | Mar 3, 2025 |
| Feb 28, 2025 | MTTR Matterport, Inc./DE | DDisposition to issuer Restricted Stock Unitsderivative | -39,325 | $0.00 | $0 | 0 | Mar 3, 2025 |
| Feb 24, 2025 | PDFS PDF SOLUTIONS INC | POpen-market purchase Common Stock | +4,000 | $23.06 | $92k | 22,574 | Feb 25, 2025 |
| Feb 19, 2025 | MTTR Matterport, Inc./DE | MOption exercise Class A Common Stock | +458,653 | $0.35 | $159k | 701,177 | Feb 20, 2025 |
| Feb 19, 2025 | MTTR Matterport, Inc./DE | MOption exercise Class A Common Stock | +16,992 | $0.35 | $5,900 | 718,169 | Feb 20, 2025 |
| Feb 19, 2025 | MTTR Matterport, Inc./DE | MOption exercise Stock Optionderivative | -16,992 | $0.00 | $0 | 0 | Feb 20, 2025 |
| Feb 19, 2025 | MTTR Matterport, Inc./DE | MOption exercise Stock Optionderivative | -458,653 | $0.00 | $0 | 0 | Feb 20, 2025 |
| Dec 12, 2023 | PDFS PDF SOLUTIONS INC | SOpen-market sale Common Stock | -867 | $31.29 | $27k | 19,075 | Dec 14, 2023 |
| Dec 13, 2023 | PDFS PDF SOLUTIONS INC | SOpen-market sale Common Stock | -4,883 | $30.86 | $151k | 14,192 | Dec 14, 2023 |
Questions about Michael B Gustafson
Answered from the filings on this page, as of the latest one.
Is Michael B Gustafson buying or selling?
Not in the last 12 months. Michael B Gustafson's latest open-market trade on SEC Form 4 was bought $146k of PDFS on May 13, 2025.
How did Michael B Gustafson's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Michael B Gustafson has 2.
Where does Michael B Gustafson file Form 4?
Michael B Gustafson has filed Form 4 at PDFS (PDF SOLUTIONS INC); MTTR (Matterport, Inc./DE). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.