David Barter
First SEC filing: March 18, 2026 · Latest: March 18, 2026
Insider at
Insider transactions
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 |
|---|---|---|---|---|---|---|---|---|---|
| July 8, 2026 | CLBT | S | 41,734 | $16.38 | $683,603 | 334,219 Direct | -11.10% | Disposed | -32.4% (price as of 2026-10-02) |
| Nov. 12, 2021 | AI | M 10b5-1 | 19,444 | · | · | 913,891 Direct | -2.08% | Disposed | (price as of 2026-10-02) |
| Nov. 12, 2021 | AI | S 10b5-1 | 2,365 | $47.27 | $111,794 | 67,599 Direct | -3.38% | Disposed | -76.7% (price as of 2026-10-02) |
| Nov. 12, 2021 | AI | S 10b5-1 | 12,479 | $46.10 | $575,282 | 69,964 Direct | -15.14% | Disposed | -76.1% (price as of 2026-10-02) |
| Nov. 12, 2021 | AI | M 10b5-1 | 19,444 | $17.10 | $332,492 | 82,443 Direct | +30.86% | Acquired | -35.6% (price as of 2026-10-02) |
| Oct. 12, 2021 | AI | M 10b5-1 | 233,332 | · | · | 933,335 Direct | -20.00% | Disposed | (price as of 2026-10-02) |
| Oct. 12, 2021 | AI | S 10b5-1 | 170,333 | $45.04 | $7,671,798 | 62,999 Direct | -73.00% | Disposed | -75.6% (price as of 2026-10-02) |
| Oct. 12, 2021 | AI | M 10b5-1 | 233,332 | $17.10 | $3,989,977 | 233,332 Direct | · | Acquired | -35.6% (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 |
|---|---|---|---|---|---|---|---|
| Nov. 12, 2021 | AI | Stock Option (Right to Buy) | Class A Common Stock | $17.10 | Oct. 20, 2030 | 19,444 | Disposed |
| Oct. 12, 2021 | AI | Stock Option (Right to Buy) | Class A Common Stock | $17.10 | Oct. 20, 2030 | 233,332 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 2 holdings
Securities held when first becoming an insider, per SEC Form 3.
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2022 | $245,455 | · | · | · | · | · | $5,147 | $250,602 |
| 2021 | $223,398 | $100,000 | · | $8,674,187 | $116,667 | · | · | $9,114,252 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.