| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Director
4 companies
Geoffrey G Ribar is Director at MRAM and has filed Form 4s across 4 companies. Geoffrey G Ribar's net worth is not public. Form 4 filings only show shares in the companies where this person is an insider; those holdings are worth an estimated $4.9M at current prices.
Historically, Geoffrey G Ribar's trades have earned a middling insider score of 62/100 across 10 rated trades. Over a 12-month horizon, 57.1% of those trades were profitable, with an average 12-month return of -1.4%.
The biggest single holding is MTSI (~$3.0M) as Director. The MTSI filings lean toward selling, a net 23,298 shares.
Geoffrey G Ribar has 36 Form 4 filings on record from March 2017 to June 2026, across 4 companies: Director at QuantumScape (QS), 2026; Director at Everspin Technologies (MRAM), 2018–2026; Director at MACOM Technology Solutions (MTSI), 2017–2026, and 1 more.
The 41 reported transactions were 25 stock awards, 11 open-market sales, 2 option exercises and 2 option or other derivative awards, plus smaller numbers of other types.
Counted by filing, the open-market trades come to 1 purchase worth about $217K and 11 sales worth about $4.5M.
The only open-market purchase was 5,000 shares of MTSI at an average $43.37 on August 28, 2017, about $217K.
The largest open-market sale was 6,656 shares of MTSI at an average $121.61 on February 12, 2025, about $809K. Twelve months later MTSI was up 96%.
2 of the 9 sales since April 2023 were made under a Rule 10b5-1 trading plan; the other 7 were not.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| May 20, 2026 | MRAM Everspin Technologies, Inc. | Director | Sell | 27,488 | $28.87 | $793,578.56 | -22.6% | -36.2% | - | |
| May 11, 2026 | MTSI MacOm Technology Solutions Holdings, Inc. | Director | Sell | 1,623 | $361.84 | $587,266.32 | -11.4% | -18.8% | - | |
| Feb 25, 2026 | MTSI MacOm Technology Solutions Holdings, Inc. | Director | Sell | 2,244 | $253.59 | $569,055.96 | -14.3% | +61.7% | - | |
| Feb 12, 2025 | MTSI MacOm Technology Solutions Holdings, Inc. | Director | Sell | 6,656 | $121.61 | $809,436.16 | -32.2% | +1.1% | +96.1% | |
| May 7, 2024 | MTSI MacOm Technology Solutions Holdings, Inc. | Director | Sell | 3,500 | $103.84 | $363,440.00 | -14.5% | -6.7% | +10.1% | |
| Mar 13, 2024 | MRAM Everspin Technologies Inc. | Director | Sell10b5-1 | 7,856 | $8.50 | $66,776.00 | -8.9% | -26.0% | -37.0% | |
| Mar 6, 2024 | MRAM Everspin Technologies Inc. | Director | Sell10b5-1 | 6,000 | $8.50 | $51,000.00 | -6.4% | -30.0% | -34.3% | |
| Aug 28, 2023 | MTSI MacOm Technology Solutions Holdings, Inc. | Director | Sell | 3,861 | $81.05 | $312,934.05 | -14.9% | +5.1% | +29.7% | |
| Aug 14, 2023 | MRAM Everspin Technologies Inc. | Director | Sale+OE | 42,000 | $9.82 | $412,440.00 | -30.9% | -13.0% | -49.4% | |
| May 3, 2021 | MTSI MacOm Technology Solutions Holdings, Inc. | Director | Sell | 5,414 | $57.08 | $309,031.12 | -20.0% | +10.1% | -5.3% |