David Weill
Insider
First SEC filing: May 1, 2019 · Latest: May 1, 2019
Insider at
Insider transactions
1 buys (P)
2 sells (S)
Net: $-1,108,436
Avg return of open purchases vs now: -2.2%
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 |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 11, 2026 | TMDX | P | 1,336 | $81.63 | $109,058 | 16,392 Direct | +8.87% | Acquired | -2.2% (price as of 2026-10-02) |
| May 20, 2026 | TMDX | A | 2,922 | · | · | 15,056 Direct | +24.08% | Acquired | (price as of 2026-10-02) |
| March 4, 2026 | TMDX | M | 3,571 | · | · | 1,429 Direct | -71.42% | Disposed | (price as of 2026-10-02) |
| March 4, 2026 | TMDX | S | 3,571 | $146.82 | $524,294 | 12,134 Direct | -22.74% | Disposed | -45.7% (price as of 2026-10-02) |
| March 4, 2026 | TMDX | M | 3,571 | $14.20 | $50,708 | 15,705 Direct | +29.43% | Acquired | 461.9% (price as of 2026-10-02) |
| Dec. 3, 2025 | TMDX | M | 5,000 | · | · | 5,000 Direct | -50.00% | Disposed | (price as of 2026-10-02) |
| Dec. 3, 2025 | TMDX | S | 5,000 | $138.64 | $693,200 | 12,134 Direct | -29.18% | Disposed | -42.4% (price as of 2026-10-02) |
| Dec. 3, 2025 | TMDX | M | 5,000 | $14.20 | $71,000 | 17,134 Direct | +41.21% | Acquired | 461.9% (price as of 2026-10-02) |
| May 23, 2025 | TMDX | S | 732 | $123.88 | $90,680 | 12,134 Direct | -5.69% | Disposed | -35.6% (price as of 2026-10-02) |
| May 22, 2025 | TMDX | A | 2,134 | · | · | 12,866 Direct | +19.88% | Acquired | (price as of 2026-10-02) |
| May 29, 2024 | TMDX | S | 1,193 | $141.65 | $168,988 | 10,732 Direct | -10.00% | Disposed | -43.7% (price as of 2026-10-02) |
| May 23, 2024 | TMDX | A | 1,154 | · | · | 1,154 Direct | · | Acquired | (price as of 2026-10-02) |
| May 23, 2024 | TMDX | A | 732 | · | · | 11,925 Direct | +6.54% | Acquired | (price as of 2026-10-02) |
| May 10, 2024 | TMDX | S | 2,500 | $129.82 | $324,550 | 11,193 Direct | -18.26% | Disposed | -38.5% (price as of 2026-10-02) |
| Aug. 29, 2023 | TMDX | P | 2,500 | $62.00 | $155,000 | 13,693 Direct | +22.34% | Acquired | 28.7% (price as of 2026-10-02) |
| May 25, 2023 | TMDX | A | 1,916 | · | · | 1,916 Direct | · | Acquired | (price as of 2026-10-02) |
| May 25, 2023 | TMDX | A | 1,193 | · | · | 11,193 Direct | +11.93% | Acquired | (price as of 2026-10-02) |
| Feb. 27, 2023 | TMDX | M | 5,934 | · | · | 10,000 Direct | -37.24% | Disposed | (price as of 2026-10-02) |
| Feb. 27, 2023 | TMDX | S | 4,970 | $76.51 | $380,255 | 10,000 Direct | -33.20% | Disposed | 4.3% (price as of 2026-10-02) |
| Feb. 27, 2023 | TMDX | S | 964 | $77.64 | $74,845 | 14,970 Direct | -6.05% | Disposed | 2.8% (price as of 2026-10-02) |
| Feb. 27, 2023 | TMDX | M | 5,934 | $14.20 | $84,263 | 15,934 Direct | +59.34% | Acquired | 461.9% (price as of 2026-10-02) |
| Nov. 10, 2022 | TMDX | M | 21,645 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Nov. 10, 2022 | TMDX | S | 21,645 | $56.00 | $1,212,120 | 13,500 Direct | -61.59% | Disposed | 42.5% (price as of 2026-10-02) |
| Nov. 10, 2022 | TMDX | M | 21,645 | $16.00 | $346,320 | 35,145 Direct | +160.33% | Acquired | 398.7% (price as of 2026-10-02) |
| June 1, 2022 | TMDX | A | 13,500 | · | · | 13,500 Direct | · | Acquired | (price as of 2026-10-02) |
| May 27, 2021 | TMDX | A | 13,500 | · | · | 13,500 Direct | · | Acquired | (price as of 2026-10-02) |
| June 4, 2020 | TMDX | A | 15,934 | · | · | 15,934 Direct | · | Acquired | (price as of 2026-10-02) |
| Nov. 11, 2019 | TMDX | P | 10,000 | $17.00 | $170,000 | 10,000 Direct | · | Acquired | 369.4% (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 |
|---|---|---|---|---|---|---|---|
| March 4, 2026 | TMDX | Stock Option (Right to Buy) | Common Stock | $14.20 | June 4, 2030 | 3,571 | Disposed |
| Dec. 3, 2025 | TMDX | Stock Option (Right to Buy) | Common Stock | $14.20 | June 4, 2030 | 5,000 | Disposed |
| May 23, 2024 | TMDX | Stock Option (Right to Buy) | Common Stock | $137.53 | May 23, 2034 | 1,154 | Acquired |
| May 25, 2023 | TMDX | Stock Option (Right to Buy) | Common Stock | $71.33 | May 25, 2033 | 1,916 | Acquired |
| Feb. 27, 2023 | TMDX | Stock Option (Right to Buy) | Common Stock | $14.20 | June 4, 2030 | 5,934 | Disposed |
| Nov. 10, 2022 | TMDX | Stock Option (Right to Buy) | Common Stock | $16.00 | May 1, 2029 | 21,645 | Disposed |
| June 1, 2022 | TMDX | Stock Option (Right to Buy) | Common Stock | $28.12 | June 1, 2032 | 13,500 | Acquired |
| May 27, 2021 | TMDX | Stock Option (Right to Buy) | Common Stock | $26.26 | May 27, 2031 | 13,500 | Acquired |
| June 4, 2020 | TMDX | Stock Option (Right to Buy) | Common Stock | $14.20 | June 4, 2030 | 15,934 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| May 1, 2019 | TMDX | Stock Option (Right to Buy) | · | Direct |