Steven Kornfeld
CIK 1814653 · View on SEC EDGAR ↗
Insider
First SEC filing: June 2, 2026 · Latest: June 2, 2026
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 8 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 |
|---|---|---|---|---|---|---|---|---|---|
| May 29, 2026 | FBRX | A | 18,353 | — | — | 18,353 Direct | — | Acquired | (price as of 2026-08-20) |
| Aug. 20, 2024 | FBRX | A | 50,000 | — | — | 50,000 Direct | — | Acquired | (price as of 2026-08-20) |
| Sept. 19, 2023 | FBRX | A | 25,000 | — | — | 25,000 Direct | — | Acquired | (price as of 2026-08-20) |
| July 31, 2023 | FBRX | A | 99,009 | $1.01 | $99,999 | 99,009 Direct | — | Acquired | 204.7% (price as of 2026-08-20) |
| June 1, 2022 | FBRX | A | 25,000 | — | — | 25,000 Direct | — | Acquired | (price as of 2026-08-20) |
| Feb. 23, 2022 | FBRX | A | 25,000 | — | — | 25,000 Direct | — | Acquired | (price as of 2026-08-20) |
| May 28, 2021 | FBRX | A | 20,000 | — | — | 20,000 Direct | — | Acquired | (price as of 2026-08-20) |
| June 15, 2020 | FBRX | A | 30,000 | — | — | 30,000 Direct | — | Acquired | (price as of 2026-08-20) |
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 29, 2026 | FBRX | Restricted Stock Units | Common Stock (18,353) | — | — | 18,353 | Acquired |
| Aug. 20, 2024 | FBRX | Stock Option (right to buy) | Common Stock (50,000) | $0.34 | Aug. 20, 2034 | 50,000 | Acquired |
| Sept. 19, 2023 | FBRX | Stock Option (right to buy) | Common Stock (25,000) | $0.80 | Sept. 19, 2033 | 25,000 | Acquired |
| June 1, 2022 | FBRX | Stock Option (right to buy) | Common Stock (25,000) | $1.27 | June 1, 2032 | 25,000 | Acquired |
| Feb. 23, 2022 | FBRX | Stock Option (right to buy) | Common Stock (25,000) | $1.27 | Feb. 23, 2032 | 25,000 | Acquired |
| May 28, 2021 | FBRX | Stock Option (right to buy) | Common Stock (20,000) | $35.54 | May 28, 2031 | 20,000 | Acquired |
| June 15, 2020 | FBRX | Stock Option (right to buy) | Common Stock (30,000) | $18.90 | June 15, 2030 | 30,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).