David Krempa
First SEC filing: March 8, 2023 · Latest: March 8, 2023
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 |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 24, 2026 | ETON | M | 25,000 | $7.31 | $182,750 | 62,025 Direct | +67.52% | Acquired | 657.3% (price as of 2026-10-02) |
| Aug. 24, 2026 | ETON | S | 25,000 | $65.07 | $1,626,750 | 37,025 Direct | -40.31% | Disposed | -14.9% (price as of 2026-10-02) |
| Aug. 24, 2026 | ETON | M | 25,000 | · | · | 70,000 Direct | -26.32% | Disposed | (price as of 2026-10-02) |
| July 31, 2026 | ETON | A | 128,985 | · | · | 128,985 Direct | · | Acquired | (price as of 2026-10-02) |
| July 12, 2026 | ETON | M | 10,000 | · | · | 37,025 Direct | +37.00% | Acquired | (price as of 2026-10-02) |
| July 12, 2026 | ETON | M | 10,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 26, 2026 | ETON | A | 10,000 | · | · | 96,829 Direct | +11.52% | Acquired | (price as of 2026-10-02) |
| May 27, 2026 | ETON | M | 12,476 | $1.37 | $17,092 | 37,725 Direct | +49.41% | Acquired | 3940.9% (price as of 2026-10-02) |
| May 27, 2026 | ETON | M | 7,203 | $3.58 | $25,787 | 44,928 Direct | +19.09% | Acquired | 1446.4% (price as of 2026-10-02) |
| May 27, 2026 | ETON | S | 19,679 | $31.47 | $619,298 | 25,249 Direct | -43.80% | Disposed | 75.9% (price as of 2026-10-02) |
| May 27, 2026 | ETON | M | 12,476 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 27, 2026 | ETON | M | 7,203 | · | · | 118,406 Direct | -5.73% | Disposed | (price as of 2026-10-02) |
| May 26, 2026 | ETON | M | 25,000 | $1.38 | $34,500 | 50,249 Direct | +99.01% | Acquired | 3911.6% (price as of 2026-10-02) |
| May 26, 2026 | ETON | M | 12,524 | $1.37 | $17,158 | 62,773 Direct | +24.92% | Acquired | 3940.9% (price as of 2026-10-02) |
| May 26, 2026 | ETON | S | 37,524 | $31.49 | $1,181,631 | 25,249 Direct | -59.78% | Disposed | 75.8% (price as of 2026-10-02) |
| May 26, 2026 | ETON | M | 25,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 26, 2026 | ETON | M | 12,524 | · | · | 12,476 Direct | -50.10% | Disposed | (price as of 2026-10-02) |
| May 22, 2026 | ETON | M | 30,591 | $3.58 | $109,516 | 68,046 Direct | +81.67% | Acquired | 1446.4% (price as of 2026-10-02) |
| May 22, 2026 | ETON | S | 32,963 | $33.22 | $1,095,031 | 35,083 Direct | -48.44% | Disposed | 66.6% (price as of 2026-10-02) |
| May 22, 2026 | ETON | S | 9,315 | $33.88 | $315,592 | 25,768 Direct | -26.55% | Disposed | 63.4% (price as of 2026-10-02) |
| May 22, 2026 | ETON | S | 519 | $35.00 | $18,165 | 25,249 Direct | -2.01% | Disposed | 58.2% (price as of 2026-10-02) |
| May 22, 2026 | ETON | M | 30,591 | · | · | 125,609 Direct | -19.58% | Disposed | (price as of 2026-10-02) |
| Jan. 14, 2026 | ETON | F | 1,942 | $15.62 | $30,334 | 630,238 Direct | -0.31% | Disposed | 254.4% (price as of 2026-10-02) |
| Jan. 12, 2026 | ETON | A | 40,655 | · | · | 670,893 Direct | +6.45% | Acquired | (price as of 2026-10-02) |
| Jan. 12, 2026 | ETON | A | 25,856 | · | · | 696,749 Direct | +3.85% | Acquired | (price as of 2026-10-02) |
| Dec. 12, 2025 | ETON | F | 6,264 | $17.00 | $106,488 | 632,180 Direct | -0.98% | Disposed | 225.6% (price as of 2026-10-02) |
| Dec. 11, 2025 | ETON | A | 5,300 | · | · | 638,468 Direct | +0.84% | Acquired | (price as of 2026-10-02) |
| June 16, 2025 | ETON | S | 10,223 | $14.73 | $150,585 | 612,646 Direct | -1.64% | Disposed | 275.8% (price as of 2026-10-02) |
| June 13, 2025 | ETON | S | 6,800 | $14.77 | $100,436 | 622,869 Direct | -1.08% | Disposed | 274.8% (price as of 2026-10-02) |
| June 12, 2025 | ETON | S | 16,977 | $14.92 | $253,297 | 629,669 Direct | -2.63% | Disposed | 271.0% (price as of 2026-10-02) |
| Jan. 3, 2025 | ETON | A | 38,621 | · | · | 38,621 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 3, 2025 | ETON | A | 25,876 | · | · | 25,876 Direct | · | Acquired | (price as of 2026-10-02) |
| Oct. 2, 2024 | ETON | A | 42,088 | · | · | 861,374 Direct | +5.14% | Acquired | (price as of 2026-10-02) |
| Feb. 13, 2024 | ETON | A | 144,677 | · | · | 813,430 Direct | +21.63% | Acquired | (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 |
|---|---|---|---|---|---|---|---|
| Aug. 24, 2026 | ETON | Employee Stock Option | Common Stock | $7.31 | Feb. 19, 2029 | 25,000 | Disposed |
| July 31, 2026 | ETON | Common Stock | Common Stock | · | · | 128,985 | Acquired |
| July 12, 2026 | ETON | Restricted Stock Units | Common Stock | $0.00 | · | 10,000 | Disposed |
| June 26, 2026 | ETON | Restricted Stock Units | Common Stock | · | · | 10,000 | Acquired |
| May 27, 2026 | ETON | Employee Stock Option | Common Stock | $1.37 | Nov. 9, 2027 | 12,476 | Disposed |
| May 27, 2026 | ETON | Employee Stock Option | Common Stock | $3.58 | March 11, 2030 | 7,203 | Disposed |
| May 26, 2026 | ETON | Employee Stock Option | Common Stock | $1.38 | Aug. 6, 2027 | 25,000 | Disposed |
| May 26, 2026 | ETON | Employee Stock Option | Common Stock | $1.37 | Nov. 9, 2027 | 12,524 | Disposed |
| May 22, 2026 | ETON | Employee Stock Option | Common Stock | $3.58 | March 11, 2030 | 30,591 | Disposed |
| Jan. 12, 2026 | ETON | Employee Stock Option (Right to Buy) | Common Stock | $15.47 | Jan. 11, 2036 | 40,655 | Acquired |
| Jan. 12, 2026 | ETON | Restricted Stock Units | Common Stock | · | · | 25,856 | Acquired |
| Dec. 11, 2025 | ETON | Restricted Stock Units | Common Stock | · | · | 5,300 | Acquired |
| Jan. 3, 2025 | ETON | Employee Stock Option (Right to Buy) | Common Stock | $13.00 | Jan. 2, 2035 | 38,621 | Acquired |
| Jan. 3, 2025 | ETON | Restricted Stock Units | Common Stock | · | · | 25,876 | Acquired |
| Oct. 2, 2024 | ETON | Restricted Stock Units | Common Stock | · | · | 42,088 | Acquired |
| Feb. 13, 2024 | ETON | Stock Option (Right to buy) | Common Stock | $4.42 | Feb. 12, 2034 | 144,677 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 10 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| March 8, 2023 | ETON | Common Stock | 12,831 | Direct |
| March 8, 2023 | ETON | Employee Stock Option (Right to buy) | 25,000 | Direct |
| March 8, 2023 | ETON | Employee Stock Option (Right to buy) | 25,000 | Direct |
| March 8, 2023 | ETON | Employee Stock Option (Right to buy) | 95,000 | Direct |
| March 8, 2023 | ETON | Employee Stock Option (Right to buy) | 156,200 | Direct |
| March 8, 2023 | ETON | Employee Stock Option (Right to buy) | 85,000 | Direct |
| March 8, 2023 | ETON | Employee Stock Option (Right to buy) | 20,000 | Direct |
| March 8, 2023 | ETON | Employee Stock Option (Right to buy) | 158,270 | Direct |
| March 8, 2023 | ETON | Employee Stock Option (Right to buy) | 74,283 | Direct |
| March 8, 2023 | ETON | Restricted Stock Units | 40,000 | Direct |
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 |
|---|---|---|---|---|---|---|---|---|
| 2023 | $372,583 | · | · | $171,222 | $162,075 | · | $13,200 | $719,080 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.