Justin E Mirro
CIK 1641982 · View on SEC EDGAR ↗
Insider
First SEC filing: March 1, 2022 · Latest: March 1, 2022
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 36 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
36 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Jan. 7, 2022 | QS | S 10b5-1 | 3,148 | $21.64 | $68,123 | 1,184,056 Indirect | -0.27% | Disposed | -73.8% (price as of 2026-08-19) |
| Jan. 7, 2022 | QS | S 10b5-1 | 46,852 | $21.03 | $985,298 | 1,187,204 Indirect | -3.80% | Disposed | -73.1% (price as of 2026-08-19) |
| Dec. 7, 2021 | QS | S 10b5-1 | 50,000 | $26.24 | $1,312,000 | 1,234,056 Indirect | -3.89% | Disposed | -78.4% (price as of 2026-08-19) |
| Nov. 8, 2021 | QS | S 10b5-1 | 5,065 | $38.14 | $193,179 | 1,284,056 Indirect | -0.39% | Disposed | -85.1% (price as of 2026-08-19) |
| Nov. 8, 2021 | QS | S 10b5-1 | 13,762 | $37.52 | $516,350 | 1,289,121 Indirect | -1.06% | Disposed | -84.9% (price as of 2026-08-19) |
| Nov. 8, 2021 | QS | S 10b5-1 | 5,963 | $36.23 | $216,039 | 1,302,883 Indirect | -0.46% | Disposed | -84.4% (price as of 2026-08-19) |
| Nov. 8, 2021 | QS | S 10b5-1 | 4,645 | $35.29 | $163,922 | 1,308,846 Indirect | -0.35% | Disposed | -83.9% (price as of 2026-08-19) |
| Nov. 8, 2021 | QS | S 10b5-1 | 6,085 | $34.28 | $208,594 | 1,313,491 Indirect | -0.46% | Disposed | -83.5% (price as of 2026-08-19) |
| Nov. 8, 2021 | QS | S 10b5-1 | 10,675 | $33.29 | $355,371 | 1,319,576 Indirect | -0.80% | Disposed | -83.0% (price as of 2026-08-19) |
| Nov. 8, 2021 | QS | S 10b5-1 | 3,805 | $32.07 | $122,026 | 1,330,251 Indirect | -0.29% | Disposed | -82.3% (price as of 2026-08-19) |
| Oct. 7, 2021 | QS | S 10b5-1 | 20,000 | $22.97 | $459,400 | 1,334,056 Indirect | -1.48% | Disposed | -75.3% (price as of 2026-08-19) |
| Sept. 30, 2021 | QS | S | 186,437 | $23.40 | $4,362,626 | 1,354,056 Indirect | -12.10% | Disposed | -75.8% (price as of 2026-08-19) |
| Sept. 10, 2021 | QS | S | 263,762 | $21.80 | $5,750,012 | 1,161,136 Indirect | -18.51% | Disposed | -74.0% (price as of 2026-08-19) |
| Sept. 7, 2021 | QS | S 10b5-1 | 20,000 | $22.17 | $443,400 | 924,898 Indirect | -2.12% | Disposed | -74.4% (price as of 2026-08-19) |
| July 30, 2021 | QS | S 10b5-1 | 2,458 | $23.40 | $57,517 | 250,000 Indirect | -0.97% | Disposed | -75.8% (price as of 2026-08-19) |
| July 30, 2021 | QS | S 10b5-1 | 47,542 | $22.92 | $1,089,663 | 252,458 Indirect | -15.85% | Disposed | -75.3% (price as of 2026-08-19) |
| July 30, 2021 | QS | S 10b5-1 | 1,834 | $23.43 | $42,971 | 250,000 Indirect | -0.73% | Disposed | -75.8% (price as of 2026-08-19) |
| July 30, 2021 | QS | S 10b5-1 | 48,166 | $22.93 | $1,104,446 | 251,834 Indirect | -16.06% | Disposed | -75.3% (price as of 2026-08-19) |
| July 30, 2021 | QS | S 10b5-1 | 10,258 | $23.40 | $240,037 | 944,898 Indirect | -1.07% | Disposed | -75.8% (price as of 2026-08-19) |
| July 30, 2021 | QS | S 10b5-1 | 189,742 | $22.92 | $4,348,887 | 955,156 Indirect | -16.57% | Disposed | -75.3% (price as of 2026-08-19) |
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 |
|---|---|---|---|---|---|---|---|
| July 23, 2024 | AMPX | Warrants (right to buy) | Common Stock (4,700,000) | — | Sept. 14, 2027 | 4,700,000 | Disposed |
| Sept. 14, 2022 | AMPX | Warrants (right to buy) | Common Stock (200,000) | $11.50 | Sept. 14, 2027 | 200,000 | Acquired |
| Sept. 14, 2022 | AMPX | Warrants (right to buy) | Common Stock (111,000) | $12.50 | Sept. 14, 2027 | 111,000 | Acquired |
| Sept. 14, 2022 | AMPX | Warrants (right to buy) | Common Stock (4,700,000) | $11.50 | Sept. 14, 2027 | 4,700,000 | Acquired |
| Sept. 14, 2022 | AMPX | Class B Ordinary Shares | Common Stock (9,857,142) | — | — | 9,857,142 | Disposed |
| May 19, 2022 | CPS | Restricted Stock Units [F3] | Common stock (910) | — | — | 910 | Disposed |
| May 19, 2022 | CPS | Restricted Stock Units [F5] | Common stock (956) | — | — | 956 | Disposed |
| May 19, 2022 | CPS | Restricted Stock Units [F6] | Common stock (2,596) | — | — | 2,596 | Disposed |
| May 19, 2022 | CPS | Restricted Stock Units [F7] | Common stock (12,699) | — | — | 12,699 | Disposed |
| May 19, 2022 | CPS | Restricted Stock Units [F8] | Common stock (4,052) | — | — | 4,052 | Disposed |
| Sept. 30, 2021 | QS | Warrant (right to buy) | Class A Common Stock (379,357) | $11.50 | — | 379,357 | Disposed |
| Sept. 10, 2021 | QS | Warrant (right to buy) | Class A Common Stock (500,000) | $11.50 | — | 500,000 | Disposed |
| May 20, 2021 | CPS | Restricted Stock Units [F1] | Common stock (4,052) | — | — | 4,052 | Acquired |
| Nov. 25, 2020 | QS | Working Capital Warrants | Class A Common Stock (75,000) | — | — | 75,000 | Acquired |
| Nov. 25, 2020 | QS | Private Placement Warrants | Class A Common Stock (804,357) | — | — | 804,357 | Acquired |
| Nov. 25, 2020 | QS | Class B Common Stock | Class A Common Stock (5,750,000) | — | — | 5,750,000 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 4 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| March 1, 2022 | AMPX | Class A Ordinary Shares | — | Indirect |
| March 1, 2022 | AMPX | Class B Ordinary Shares→ Class A Ordinary Shares | — | Indirect |
| June 25, 2020 | QS | Class B common stock→ Class A common stock | — | Indirect |
| May 11, 2015 | CPS | Restricted Stock Units [F1]→ Common stock (1,285) | 1,285 | Direct |