David Kirske
Insider
First SEC filing: July 1, 2026 · Latest: July 1, 2026
Insider at
Insider transactions
0 buys (P)
2 sells (S)
Net: $-109,156
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 |
|---|---|---|---|---|---|---|---|---|---|
| June 30, 2026 | XFOR | S | 8,543 | $4.26 | $36,393 | 167,750 Direct | -4.85% | Disposed | -34.7% (price as of 2026-10-05) |
| May 12, 2026 | XFOR | S | 16,961 | $4.29 | $72,763 | 176,293 Direct | -8.78% | Disposed | -35.2% (price as of 2026-10-05) |
| Oct. 29, 2025 | XFOR | A | 1,552,769 | · | · | 1,552,769 Direct | · | Acquired | (price as of 2026-10-05) |
| Aug. 14, 2025 | XFOR | A | 193,254 | · | · | 193,254 Direct | · | Acquired | (price as of 2026-10-05) |
| Aug. 14, 2025 | XFOR | A | 352,800 | · | · | 352,800 Direct | · | Acquired | (price as of 2026-10-05) |
| Aug. 12, 2025 | XFOR | A | 1,073,249 | · | · | 1,073,249 Direct | · | Acquired | (price as of 2026-10-05) |
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 |
|---|---|---|---|---|---|---|---|
| Oct. 29, 2025 | XFOR | Stock Option (right to buy) | Common Stock | $1.42 | Aug. 12, 2035 | 1,552,769 | Acquired |
| Aug. 14, 2025 | XFOR | Stock Option (right to buy) | Common Stock | $3.14 | Aug. 14, 2035 | 352,800 | Acquired |
| Aug. 12, 2025 | XFOR | Stock Option (right to buy) | Common Stock | $1.42 | Aug. 12, 2035 | 1,073,249 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
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 |
|---|---|---|---|---|---|---|---|---|
| 2025 | $194,192 | $120,000 | · | $4,181,040 | $103,133 | · | $901 | $4,599,266 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.