Michael Dybbs
CIK 1601264 · View on SEC EDGAR ↗
Insider
First SEC filing: June 11, 2026 · Latest: June 11, 2026
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 16 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
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 10, 2026 | NKTX | A | 37,000 | — | — | 37,000 Direct | — | Acquired | (price as of 2026-08-19) |
| June 5, 2026 | STRO | A | 10,000 | $26.09 | $260,900 | — | — | — | -12.1% (price as of 2026-08-19) |
| June 3, 2026 | KLRS | A | 9,000 | — | — | 9,000 Direct | — | Acquired | (price as of 2026-08-19) |
| June 5, 2025 | NKTX | A | 46,000 | — | — | 46,000 Direct | — | Acquired | (price as of 2026-08-19) |
| April 10, 2025 | KLRS | A | 18,000 | — | — | 18,000 Direct | — | Acquired | (price as of 2026-08-19) |
| June 13, 2024 | NKTX | A | 22,500 | — | — | 22,500 Direct | — | Acquired | (price as of 2026-08-19) |
| June 8, 2023 | STRO | A | 25,000 | — | — | 25,000 Direct | — | Acquired | (price as of 2026-08-19) |
| June 7, 2023 | NKTX | A | 22,500 | — | — | 22,500 Direct | — | Acquired | (price as of 2026-08-19) |
| June 8, 2022 | NKTX | A | 16,000 | — | — | 16,000 Direct | — | Acquired | (price as of 2026-08-19) |
| June 6, 2022 | STRO | A | 18,500 | — | — | 18,500 Direct | — | Acquired | (price as of 2026-08-19) |
| June 13, 2021 | NKTX | A | 16,511 | — | — | 16,511 Direct | — | Acquired | (price as of 2026-08-19) |
| June 3, 2021 | STRO | A | 18,500 | — | — | 18,500 Direct | — | Acquired | (price as of 2026-08-19) |
| July 9, 2020 | NKTX | A | 10,700 | — | — | 10,700 Direct | — | Acquired | (price as of 2026-08-19) |
| June 5, 2020 | STRO | A | 12,000 | — | — | 12,000 Direct | — | Acquired | (price as of 2026-08-19) |
| June 17, 2019 | STRO | A | 11,610 | — | — | 11,610 Direct | — | Acquired | (price as of 2026-08-19) |
| Sept. 26, 2018 | STRO | A | 26,033 | — | — | 26,033 Direct | — | Acquired | (price as of 2026-08-19) |
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 |
|---|---|---|---|---|---|---|---|
| June 10, 2026 | NKTX | Stock Option (right to buy) | Common Stock (37,000) | $2.46 | June 9, 2036 | 37,000 | Acquired |
| June 3, 2026 | KLRS | Stock Option (Right to Buy) | Common Stock (9,000) | $4.72 | June 2, 2036 | 9,000 | Acquired |
| June 5, 2025 | NKTX | Stock Option (right to buy) | Common Stock (46,000) | $1.83 | June 4, 2035 | 46,000 | Acquired |
| April 10, 2025 | KLRS | Stock Option (Right to Buy) | Common Stock (18,000) | $7.31 | April 9, 2035 | 18,000 | Acquired |
| June 13, 2024 | NKTX | Stock Option (right to buy) | Common Stock (22,500) | $6.23 | June 12, 2034 | 22,500 | Acquired |
| June 8, 2023 | STRO | Stock Option (right to buy) | Common Stock (25,000) | $5.12 | June 8, 2033 | 25,000 | Acquired |
| June 7, 2023 | NKTX | Stock Option (right to buy) | Common Stock (22,500) | $4.86 | June 6, 2033 | 22,500 | Acquired |
| June 8, 2022 | NKTX | Stock Option (right to buy) | Common Stock (16,000) | $14.95 | June 7, 2032 | 16,000 | Acquired |
| June 6, 2022 | STRO | Stock Option (right to buy) | Common Stock (18,500) | $4.44 | June 5, 2032 | 18,500 | Acquired |
| June 13, 2021 | NKTX | Stock Option (right to buy) | Common Stock (16,511) | $25.03 | June 12, 2031 | 16,511 | Acquired |
| June 3, 2021 | STRO | Stock Option (right to buy) | Common Stock (18,500) | $18.21 | June 2, 2031 | 18,500 | Acquired |
| July 9, 2020 | NKTX | Stock Option (right to buy) | Common Stock (10,700) | $18.00 | July 8, 2030 | 10,700 | Acquired |
| June 5, 2020 | STRO | Stock Option (right to buy) | Common Stock (12,000) | $9.83 | June 4, 2030 | 12,000 | Acquired |
| June 17, 2019 | STRO | Stock Option (right to buy Common Stock) | Common Stock (11,610) | $11.12 | June 16, 2029 | 11,610 | Acquired |
| Sept. 26, 2018 | STRO | Stock Option (right to buy Common Stock) | Common Stock (26,033) | $15.00 | Sept. 25, 2028 | 26,033 | 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 |
|---|---|---|---|---|
| Sept. 26, 2018 | STRO | No securities beneficially held | 0 | Direct |