Kevin J. Mccallion
Insider
First SEC filing: March 4, 2026 · Latest: March 4, 2026
Insider at
Insider transactions
0 buys (P)
5 sells (S)
Net: $-188,068
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| April 10, 2026 | MASS | M 10b5-1 | 2,693 | $1.05 | $2,828 | 47,618 Direct | +5.99% | Acquired | 1108.6% (price as of 2026-10-02) |
| April 10, 2026 | MASS | S 10b5-1 | 2,693 | $7.01 | $18,878 | 44,925 Direct | -5.66% | Disposed | 81.0% (price as of 2026-10-02) |
| April 10, 2026 | MASS | M 10b5-1 | 2,693 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| April 9, 2026 | MASS | M 10b5-1 | 5,420 | $1.05 | $5,691 | 50,345 Direct | +12.06% | Acquired | 1108.6% (price as of 2026-10-02) |
| April 9, 2026 | MASS | S 10b5-1 | 5,420 | $7.03 | $38,103 | 44,925 Direct | -10.77% | Disposed | 80.5% (price as of 2026-10-02) |
| April 9, 2026 | MASS | M 10b5-1 | 5,420 | · | · | 2,686 Direct | -66.86% | Disposed | (price as of 2026-10-02) |
| April 8, 2026 | MASS | M 10b5-1 | 18,580 | $1.05 | $19,509 | 63,505 Direct | +41.36% | Acquired | 1108.6% (price as of 2026-10-02) |
| April 8, 2026 | MASS | S 10b5-1 | 18,580 | $7.05 | $130,989 | 44,925 Direct | -29.26% | Disposed | 80.0% (price as of 2026-10-02) |
| April 8, 2026 | MASS | M 10b5-1 | 18,580 | · | · | 8,106 Direct | -69.62% | Disposed | (price as of 2026-10-02) |
| March 2, 2026 | MASS | M 10b5-1 | 7 | $1.05 | $7 | 44,932 Direct | +0.02% | Acquired | 1108.6% (price as of 2026-10-02) |
| March 2, 2026 | MASS | S 10b5-1 | 7 | $7.00 | $49 | 44,925 Direct | -0.02% | Disposed | 81.3% (price as of 2026-10-02) |
| March 2, 2026 | MASS | M 10b5-1 | 7 | · | · | 26,686 Direct | -0.03% | Disposed | (price as of 2026-10-02) |
| March 2, 2026 | MASS | S 10b5-1 | 7 | $7.00 | $49 | 44,918 Direct | -0.02% | Disposed | 81.3% (price as of 2026-10-02) |
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 |
|---|---|---|---|---|---|---|---|
| April 10, 2026 | MASS | Stock Option (right to buy) | Common Stock | $1.05 | Aug. 27, 2030 | 2,693 | Disposed |
| April 9, 2026 | MASS | Stock Option (right to buy) | Common Stock | $1.05 | Aug. 27, 2030 | 5,420 | Disposed |
| April 8, 2026 | MASS | Stock Option (right to buy) | Common Stock | $1.05 | Aug. 27, 2030 | 18,580 | Disposed |
| March 2, 2026 | MASS | Stock Option (right to buy) | Common Stock | $1.05 | Aug. 27, 2030 | 7 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 11 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| March 4, 2026 | MASS | Common Stock | 44,925 | Direct |
| March 4, 2026 | MASS | Stock Option (right to buy) | 26,693 | Direct |
| March 4, 2026 | MASS | Stock Option (right to buy) | 27,917 | Direct |
| March 4, 2026 | MASS | Stock Option (right to buy) | 37,801 | Direct |
| March 4, 2026 | MASS | Stock Option (right to buy) | 42,014 | Direct |
| March 4, 2026 | MASS | Stock Option (right to buy) | 40,011 | Direct |
| March 4, 2026 | MASS | Stock Option (right to buy) | 21,187 | Direct |
| March 4, 2026 | MASS | Restricted Stock Units | 6,229 | Direct |
| March 4, 2026 | MASS | Restricted Stock Units | 15,376 | Direct |
| March 4, 2026 | MASS | Restricted Stock Units | 58,602 | Direct |
| March 4, 2026 | MASS | Restricted Stock Units | 48,466 | Direct |