Adam Leo Stone
CIK 1727440 · View on SEC EDGAR ↗
Insider
First SEC filing: March 18, 2026 · Latest: June 11, 2026
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 15 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 |
|---|---|---|---|---|---|---|---|---|---|
| July 20, 2026 | FRNM | C | 2,066,250 | — | — | 0 Indirect | -100.00% | Disposed | (price as of 2026-08-21) |
| July 20, 2026 | FRNM | C | 2,066,250 | — | — | 2,352,500 Indirect | +721.83% | Acquired | (price as of 2026-08-21) |
| June 16, 2026 | IMTX | A | 48,000 | — | — | 48,000 Direct | — | Acquired | (price as of 2026-08-21) |
| June 10, 2026 | SLDB | A | 77,500 | — | — | 77,500 Direct | — | Acquired | (price as of 2026-08-21) |
| June 12, 2025 | SLDB | A | 77,500 | — | — | 77,500 Direct | — | Acquired | (price as of 2026-08-21) |
| June 13, 2024 | FRNM | A | 286,250 | $10.00 | $2,862,500 | 286,250 Indirect | — | Acquired | 36.6% (price as of 2026-08-21) |
| June 11, 2024 | SLDB | A | 34,400 | — | — | 34,400 Direct | — | Acquired | (price as of 2026-08-21) |
| June 6, 2023 | SLDB | A | 9,650 | — | — | 9,650 Direct | — | Acquired | (price as of 2026-08-21) |
| Dec. 13, 2022 | SLDB | A | 9,650 | — | — | 9,650 Direct | — | Acquired | (price as of 2026-08-21) |
| June 7, 2022 | SLDB | A | 51,000 | — | — | 51,000 Direct | — | Acquired | (price as of 2026-08-21) |
| Aug. 11, 2020 | NAUT | J | 499,000 | $10.00 | $4,990,000 | 499,000 Indirect | — | Acquired | -90.8% (price as of 2026-08-21) |
| June 16, 2020 | SLDB | A | 30,000 | — | — | 30,000 Direct | — | Acquired | (price as of 2026-08-21) |
| June 13, 2019 | SLDB | A | 10,000 | — | — | 10,000 Direct | — | Acquired | (price as of 2026-08-21) |
| Dec. 13, 2018 | SLDB | A | 8,165 | — | — | 8,165 Direct | — | Acquired | (price as of 2026-08-21) |
| July 25, 2018 | SLDB | A | 1,835 | — | — | 1,835 Direct | — | Acquired | (price as of 2026-08-21) |
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 |
|---|---|---|---|---|---|---|---|
| July 20, 2026 | FRNM | Class B Ordinary Shares | Common Stock (2,066,250) | — | — | 2,066,250 | Disposed |
| June 16, 2026 | IMTX | Stock Option (Right to Buy) | Ordinary Shares (48,000) | $9.09 | June 15, 2036 | 48,000 | Acquired |
| June 10, 2026 | SLDB | Director Stock Option (Right to Buy) | Common Stock (77,500) | $6.61 | June 10, 2036 | 77,500 | Acquired |
| June 12, 2025 | SLDB | Director Stock Option (Right to Buy) | Common Stock (77,500) | $4.58 | June 12, 2035 | 77,500 | Acquired |
| June 11, 2024 | SLDB | Director Stock Option (Right to Buy) | Common Stock (34,400) | $7.51 | June 11, 2034 | 34,400 | Acquired |
| June 6, 2023 | SLDB | Director Stock Option (Right to Buy) | Common Stock (9,650) | $6.37 | June 6, 2033 | 9,650 | Acquired |
| Dec. 13, 2022 | SLDB | Stock Option (Right to Buy) | Common Stock (9,650) | $6.47 | Dec. 13, 2032 | 9,650 | Acquired |
| June 7, 2022 | SLDB | Stock Option (Right to Buy) | Common Stock (51,000) | $0.62 | June 7, 2032 | 51,000 | Acquired |
| June 16, 2020 | SLDB | Stock Option (Right to Buy) | Common Stock (30,000) | $3.03 | June 16, 2030 | 30,000 | Acquired |
| June 13, 2019 | SLDB | Stock Option (Right to Buy) | Common Stock (10,000) | $5.26 | June 13, 2029 | 10,000 | Acquired |
| Dec. 13, 2018 | SLDB | Stock Option (Right to Buy) | Common Stock (8,165) | $23.58 | Dec. 13, 2028 | 8,165 | Acquired |
| July 25, 2018 | SLDB | Stock Option (Right to Buy) | Common Stock (1,835) | $37.89 | July 25, 2028 | 1,835 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 9 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| March 18, 2026 | IMTX | Stock Option (Right to Buy)→ Ordinary Shares (25,000) | 25,000 | Direct |
| March 18, 2026 | IMTX | Stock Option (Right to Buy)→ Ordinary Shares (15,000) | 15,000 | Direct |
| March 18, 2026 | IMTX | Stock Option (Right to Buy)→ Ordinary Shares (25,000) | 25,000 | Direct |
| March 18, 2026 | IMTX | Stock Option (Right to Buy)→ Ordinary Shares (25,000) | 25,000 | Direct |
| March 18, 2026 | IMTX | Stock Option (Right to Buy)→ Ordinary Shares (40,000) | 40,000 | Direct |
| March 18, 2026 | IMTX | Stock Option (Right to Buy)→ Ordinary Shares (41,500) | 41,500 | Direct |
| June 11, 2024 | FRNM | Class B ordinary shares→ Class A ordinary shares | — | Indirect |
| Aug. 6, 2020 | NAUT | Class B ordinary shares→ Class A ordinary shares | — | Indirect |
| Jan. 25, 2018 | SLDB | Common Stock | 0 | Direct |