Marcia Eisenberg
CIK 1866723 · View on SEC EDGAR ↗
Insider
First SEC filing: June 9, 2021 · Latest: June 9, 2021
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 2 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
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 7, 2021 | MASS | A | 2,045 | — | — | 2,045 Direct | — | Acquired | (price as of 2026-08-20) |
| June 7, 2021 | MASS | A | 3,511 | — | — | 3,511 Direct | — | Acquired | (price as of 2026-08-20) |
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 |
|---|---|---|---|---|---|---|---|
| June 7, 2021 | MASS | Restricted Stock Unit | Common Stock, par value $0.001 (2,045) | — | — | 2,045 | Acquired |
| June 7, 2021 | MASS | Stock Option (option to buy) | Common Stock, par value $0.001 (3,511) | $42.79 | June 7, 2031 | 3,511 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).