George Kemble
CIK 1858176 · View on SEC EDGAR ↗
Insider
First SEC filing: July 13, 2023 · Latest: June 15, 2026
On this page
- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
Insider at
Insider transactions
0 buys (P)
4 sells (S)
Net:
$-4,222,044
+ 29 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
29 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 14, 2026 | SGMT | S 10b5-1 | 350,987 | $10.23 | $3,590,597 | 62,161 Direct | -84.95% | Disposed | 2.8% (price as of 2026-08-20) |
| Aug. 11, 2026 | SGMT | S 10b5-1 | 20,206 | $9.95 | $201,050 | 62,161 Direct | -24.53% | Disposed | 5.6% (price as of 2026-08-20) |
| July 20, 2026 | SGMT | S 10b5-1 | 18,844 | $7.46 | $140,576 | 62,161 Direct | -23.26% | Disposed | 40.9% (price as of 2026-08-20) |
| Nov. 20, 2025 | SGMT | S 10b5-1 | 37,688 | $7.69 | $289,821 | 81,005 Direct | -31.75% | Disposed | 36.7% (price as of 2026-08-20) |
| July 23, 2024 | SGMT | S 10b5-1 | 23,625 | $3.17 | $74,891 | 118,693 Direct | -16.60% | Disposed | 231.6% (price as of 2026-08-20) |
| July 19, 2024 | SGMT | S | 14,062 | $3.10 | $43,592 | 142,318 Direct | -8.99% | Disposed | 239.1% (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 |
|---|---|---|---|---|---|---|---|
| Aug. 14, 2026 | SGMT | Stock Option (Right to Buy) | Series A Common Stock (326,618) | $6.36 | April 27, 2029 | 326,618 | Disposed |
| Aug. 14, 2026 | SGMT | Stock Option (Right to Buy) | Series A Common Stock (24,369) | $6.36 | April 27, 2029 | 24,369 | Disposed |
| Aug. 11, 2026 | SGMT | Stock Option (Right to Buy) | Series A Common Stock (9,751) | $6.36 | — | 9,751 | Disposed |
| Aug. 11, 2026 | SGMT | Stock Option (Right to Buy) | Series A Common Stock (10,455) | $6.36 | — | 10,455 | Disposed |
| June 12, 2026 | SGMT | Stock Option (Right to Buy) | Series A Common Stock (39,567) | $6.48 | June 11, 2036 | 39,567 | Acquired |
| June 9, 2025 | SGMT | Stock Option (Right to Buy) | Series A Common Stock (32,250) | $5.33 | June 8, 2035 | 32,250 | Acquired |
| Sept. 7, 2023 | SGMT | Stock Option (Right to Buy) | Series A Common Stock (5,630) | $0.79 | Sept. 26, 2023 | 5,630 | Disposed |
| July 18, 2023 | SGMT | Stock Option (Right to Buy) | Series A Common Stock (21,173) | $7.15 | Oct. 16, 2032 | 21,173 | Acquired |
| July 18, 2023 | SGMT | Stock Option (Right to Buy) | Common Stock (21,173) | $7.15 | Oct. 16, 2032 | 21,173 | Disposed |
| July 18, 2023 | SGMT | Stock Option (Right to Buy) | Series A Common Stock (526,332) | $6.36 | Jan. 26, 2031 | 526,332 | Acquired |
| July 18, 2023 | SGMT | Stock Option (Right to Buy) | Common Stock (526,332) | $6.36 | Jan. 26, 2031 | 526,332 | Disposed |
| July 18, 2023 | SGMT | Stock Option (Right to Buy) | Series A Common Stock (46,432) | $6.36 | April 27, 2029 | 46,432 | Acquired |
| July 18, 2023 | SGMT | Stock Option (Right to Buy) | Common Stock (46,432) | $6.36 | April 27, 2029 | 46,432 | Disposed |
| July 18, 2023 | SGMT | Stock Option (Right to Buy) | Series A Common Stock (367,824) | $6.36 | April 27, 2029 | 367,824 | Acquired |
| July 18, 2023 | SGMT | Stock Option (Right to Buy) | Common Stock (367,824) | $6.36 | April 27, 2029 | 367,824 | Disposed |
| July 18, 2023 | SGMT | Stock Option (Right to Buy) | Series A Common Stock (26,352) | $19.87 | Oct. 12, 2025 | 26,352 | Acquired |
| July 18, 2023 | SGMT | Stock Option (Right to Buy) | Common Stock (26,352) | $19.87 | Oct. 12, 2025 | 26,352 | Disposed |
| July 18, 2023 | SGMT | Stock Option (Right to Buy) | Series A Common Stock (7,147) | $23.05 | Dec. 16, 2024 | 7,147 | Acquired |
| July 18, 2023 | SGMT | Stock Option (Right to Buy) | Common Stock (7,147) | $23.05 | Dec. 16, 2024 | 7,147 | Disposed |
| July 18, 2023 | SGMT | Stock Option (Right to Buy) | Series A Common Stock (3,179) | $11.13 | March 12, 2024 | 3,179 | Acquired |
| July 18, 2023 | SGMT | Stock Option (Right to Buy) | Common Stock (3,179) | $11.13 | March 12, 2024 | 3,179 | Disposed |
| July 18, 2023 | SGMT | Stock Option (Right to Buy) | Series A Common Stock (5,630) | $0.79 | Sept. 26, 2023 | 5,630 | Acquired |
| July 18, 2023 | SGMT | Stock Option (Right to Buy) | Common Stock (5,630) | $0.79 | Sept. 26, 2023 | 5,630 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 8 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| July 13, 2023 | SGMT | Stock Option (Right to Buy)→ Common Stock (5,630) | 5,630 | Direct |
| July 13, 2023 | SGMT | Stock Option (Right to Buy)→ Common Stock (3,179) | 3,179 | Direct |
| July 13, 2023 | SGMT | Stock Option (Right to Buy)→ Common Stock (7,147) | 7,147 | Direct |
| July 13, 2023 | SGMT | Stock Option (Right to Buy)→ Common Stock (26,352) | 26,352 | Direct |
| July 13, 2023 | SGMT | Stock Option (Right to Buy)→ Common Stock (367,824) | 367,824 | Direct |
| July 13, 2023 | SGMT | Stock Option (Right to Buy)→ Common Stock (46,432) | 46,432 | Direct |
| July 13, 2023 | SGMT | Stock Option (Right to Buy)→ Common Stock (526,332) | 526,332 | Direct |
| July 13, 2023 | SGMT | Stock Option (Right to Buy)→ Common Stock (21,173) | 21,173 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
SGMT
CEO| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2022 | $404,856 | — | — | $129,713 | — | — | $40,297 | $574,866 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.