John Richard Sylvester
Insider
First SEC filing: Nov. 25, 2020 · Latest: Nov. 25, 2020
Insider at
Insider transactions
1 buys (P)
0 sells (S)
Net: $38,992
Avg return of open purchases vs now: 73.3%
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 |
|---|---|---|---|---|---|---|---|---|---|
| May 13, 2026 | DCTH | A | 22,500 | · | · | 22,500 Direct | · | Acquired | (price as of 2026-10-06) |
| Nov. 21, 2025 | DCTH | P | 4,386 | $8.89 | $38,992 | 14,936 Direct | +41.57% | Acquired | 73.3% (price as of 2026-10-06) |
| May 15, 2025 | DCTH | A | 22,500 | · | · | 22,500 Direct | · | Acquired | (price as of 2026-10-06) |
| May 23, 2024 | DCTH | A | 22,500 | · | · | 22,500 Direct | · | Acquired | (price as of 2026-10-06) |
| Aug. 21, 2023 | DCTH | P | 10,550 | $4.80 | $50,640 | 10,550 Direct | · | Acquired | 221.0% (price as of 2026-10-06) |
| June 12, 2023 | DCTH | A | 19,682 | · | · | 19,682 Direct | · | Acquired | (price as of 2026-10-06) |
| May 4, 2022 | DCTH | A | 9,000 | · | · | 9,000 Direct | · | Acquired | (price as of 2026-10-06) |
| Aug. 5, 2021 | DCTH | A | 9,000 | · | · | 9,000 Direct | · | Acquired | (price as of 2026-10-06) |
| Nov. 23, 2020 | DCTH | A | 30,000 | · | · | 30,000 Direct | · | Acquired | (price as of 2026-10-06) |
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 |
|---|---|---|---|---|---|---|---|
| May 13, 2026 | DCTH | Stock Option (right to buy) | Common Stock | $11.61 | · | 22,500 | Acquired |
| May 15, 2025 | DCTH | Stock Option (right to buy) | Common Stock | $16.05 | · | 22,500 | Acquired |
| May 23, 2024 | DCTH | Stock Option (right to buy) | Common Stock | $7.85 | · | 22,500 | Acquired |
| June 12, 2023 | DCTH | Stock Option (Right to Buy) | Common Stock | $7.25 | June 12, 2033 | 19,682 | Acquired |
| May 4, 2022 | DCTH | Stock Option (Right to Buy) | Common Stock | $6.24 | May 4, 2023 | 9,000 | Acquired |
| Aug. 5, 2021 | DCTH | Stock Option (right to buy) | Common Stock | $10.16 | Aug. 5, 2031 | 9,000 | Acquired |
| Nov. 23, 2020 | DCTH | Stock Option (right to buy) | Common Stock | $11.67 | Oct. 1, 2030 | 30,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).