Joel Michael Maryles
CIK 1850990 · View on SEC EDGAR ↗
Insider
First SEC filing: April 21, 2021 · Latest: April 21, 2021
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 7 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
7 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| May 24, 2022 | CMMB | P | 33 | $2.76 | $91 | 1,433 Direct | +2.36% | Acquired | -81.0% (price as of 2026-08-21) |
| May 24, 2022 | CMMB | P | 400 | $2.89 | $1,156 | 1,400 Direct | +40.00% | Acquired | -81.9% (price as of 2026-08-21) |
| March 18, 2022 | CMMB | P | 500 | $4.36 | $2,180 | 1,000 Direct | +100.00% | Acquired | -88.0% (price as of 2026-08-21) |
| March 18, 2022 | CMMB | P | 500 | $4.32 | $2,160 | 500 Direct | — | Acquired | -87.9% (price as of 2026-08-21) |
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 |
|---|---|---|---|---|---|---|---|
| March 7, 2022 | CMMB | Option to Purchase American Depositary Shares [F3] | American Depositary Shares [F1] (6,820) | $3.53 | March 7, 2032 | 6,820 | Acquired |
| March 7, 2022 | CMMB | Option to Purchase American Depositary Shares [F2] | American Depositary Shares [F1] (6,820) | $3.53 | March 7, 2032 | 6,820 | Acquired |
| March 7, 2022 | CMMB | Option to Purchase American Depositary Shares | American Depositary Shares [F2] (6,820) | $3.53 | March 7, 2032 | 6,820 | Acquired |
| April 19, 2021 | CMMB | Option to Purchase American Depositary Shares [F3] | American Depositary Shares [F1] (11,884) | $27.26 | April 19, 2031 | 11,884 | Acquired |
| April 19, 2021 | CMMB | Option to Purchase American Depositary Shares [F2] | American Depositary Shares [F1] (11,884) | $27.26 | April 19, 2031 | 11,884 | Acquired |
| April 19, 2021 | CMMB | Option to Purchase American Depositary Shares [F3] | American Depositary Shares [F2] (11,884) | $27.26 | April 19, 2031 | 11,884 | Acquired |
| April 19, 2021 | CMMB | Option to Purchase American Depositary Shares | American Depositary Shares [F2] (11,884) | $27.26 | April 19, 2031 | 11,884 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).