| 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
3 companies
Justin E Mirro last filed a Form 4 in September 2024, as Director at AMPX. The filings on record cover 3 companies. Justin E Mirro's net worth is not public. Form 4 filings only show shares in the companies where this person was an insider, as of the last filing.
Our model assigns Justin E Mirro a strong insider score of 70/100, based on 25 past trades. Over a 12-month horizon, 76.0% of those trades were profitable, with an average 12-month return of +20.8%.
At the last filing, the largest reported position was 1,195,000 shares of AMPX. The AMPX filings lean toward selling, a net 2,266,000 shares.
Justin E Mirro has 30 Form 4 filings on record from May 2015 to September 2024, across 3 companies: Director at Amprius Technologies (AMPX), 2022–2024; Director at Cooper-Standard (CPS), 2015–2022; Director at QS, 2020–2022.
The 89 reported transactions were 52 open-market sales, 10 other transactions, 8 option or other derivative awards and 7 option exercises, plus smaller numbers of other types.
Counted by filing, the open-market trades come to 2 purchases worth about $204K and 14 sales worth about $27.1M.
The largest open-market purchase was 2,000 shares of CPS at an average $62.75 on May 13, 2015, about $126K.
The largest open-market sale was 300,000 shares of QS at an average $22.95 on July 30, 2021, about $6.9M. Twelve months later QS was down 53%.
None of the 6 sales since April 2023 was marked as made under a Rule 10b5-1 trading plan.
Shares as reported in the last Form 4 for each company; the most recent is from September 2024. Values use today's prices. Any trades after the last filing were not reported, so current holdings may differ.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 5, 2024 | AMPX Amprius Technologies, Inc. | Director | Sell | 710,000 | $0.90 | $641,850.50 | -37.3% | +164.5% | +766.5% | |
| Jun 14, 2024 | AMPX Amprius Technologies, Inc. | Director | Sell | 800,000 | $1.22 | $973,209.00 | -33.5% | -21.1% | +250.5% | |
| Dec 14, 2023 | AMPX Amprius Technologies, Inc. | Director | Sell | 405,000 | $3.62 | $1,467,364.50 | -18.5% | -18.9% | -51.7% | |
| Dec 7, 2023 | AMPX Amprius Technologies, Inc. | Director | Sell | 90,000 | $4.08 | $367,583.00 | -4.5% | -29.5% | -46.9% | |
| Nov 30, 2023 | AMPX Amprius Technologies, Inc. | Director | Sell | 150,000 | $3.97 | $595,743.50 | -7.1% | -21.7% | -47.9% | |
| Jun 15, 2023 | AMPX Amprius Technologies, Inc. | Director | Sell | 111,000 | $9.14 | $1,015,045.60 | -4.3% | -54.7% | -87.6% | |
| Jan 7, 2022 | Director | Sell | 50,000 | $21.06 | $1,053,212.21 | -4.1% | -10.7% | -73.2% | ||
| Dec 7, 2021 | Director | Sell | 50,000 | $26.24 | $1,311,925.00 | -3.9% | -45.5% | -73.9% | ||
| Nov 8, 2021 | Director | Sell | 50,000 | $35.51 | $1,775,477.09 | -3.7% | -56.5% | -78.9% | ||
| Oct 7, 2021 | Director | Sell | 20,000 | $22.97 | $459,376.00 | -1.5% | -5.7% | -63.1% |