Jonathan B. Zung
CIK 1837972 · View on SEC EDGAR ↗
Insider
First SEC filing: March 23, 2026 · Latest: March 23, 2026
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 11 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 7, 2026 | CRIS | A | 48,285 | $5.29 | $255,428 | 48,285 Direct | — | Acquired | -69.0% (price as of 2026-08-20) |
| March 20, 2026 | CRIS | C | 50 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| March 20, 2026 | CRIS | C | 66,667 | — | — | 66,667 Direct | — | Acquired | (price as of 2026-08-20) |
| March 17, 2026 | CRIS | A | 66,667 | — | — | 66,667 Direct | — | Acquired | (price as of 2026-08-20) |
| March 17, 2026 | CRIS | A | 66,667 | — | — | 66,667 Direct | — | Acquired | (price as of 2026-08-20) |
| March 17, 2026 | CRIS | A | 66,667 | — | — | 66,667 Direct | — | Acquired | (price as of 2026-08-20) |
| March 17, 2026 | CRIS | A | 50 | — | — | 50 Direct | — | Acquired | (price as of 2026-08-20) |
| May 20, 2025 | CRIS | A | 135,000 | $3.13 | $422,550 | 135,000 Direct | — | Acquired | -97.4% (price as of 2026-08-20) |
| Jan. 28, 2025 | CRIS | A | 15,000 | $3.13 | $46,950 | 15,000 Direct | — | Acquired | -97.4% (price as of 2026-08-20) |
| May 21, 2024 | CRIS | A | 40,700 | $11.62 | $472,934 | 40,700 Direct | — | Acquired | -99.3% (price as of 2026-08-20) |
| May 1, 2023 | CRIS | A | 500,000 | $0.83 | $415,000 | 500,000 Direct | — | Acquired | -99.5% (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 |
|---|---|---|---|---|---|---|---|
| July 7, 2026 | CRIS | Employee stock option (right to buy) | Common Stock (48,285) | $5.29 | July 6, 2036 | 48,285 | Acquired |
| March 20, 2026 | CRIS | Series B Convertible Preferred Stock | Common Stock (66,667) | — | — | 50 | Disposed |
| March 17, 2026 | CRIS | Series C Warrant (right to buy) | Common Stock (66,667) | $0.75 | July 8, 2027 | 66,667 | Acquired |
| March 17, 2026 | CRIS | Series B Warrant (right to buy) | Common Stock (66,667) | — | — | 66,667 | Acquired |
| March 17, 2026 | CRIS | Series A Warrant (right to buy) | Common Stock (66,667) | $0.75 | Jan. 8, 2031 | 66,667 | Acquired |
| March 17, 2026 | CRIS | Series B Convertible Preferred Stock | Common Stock (66,667) | — | — | 50 | Acquired |
| May 20, 2025 | CRIS | Employee stock option (right to buy) | Common Stock (135,000) | $3.13 | Jan. 27, 2035 | 135,000 | Acquired |
| Jan. 28, 2025 | CRIS | Employee stock option (right to buy) | Common Stock (15,000) | $3.13 | Jan. 27, 2035 | 15,000 | Acquired |
| May 21, 2024 | CRIS | Employee stock option (right to buy) | Common Stock (40,700) | $11.62 | Jan. 18, 2034 | 40,700 | Acquired |
| May 1, 2023 | CRIS | Employee stock option (right to buy) | Common Stock (500,000) | $0.83 | April 30, 2033 | 500,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).