Joel David Mayersohn
CIK 1588395 · View on SEC EDGAR ↗
Insider
First SEC filing: Dec. 22, 2025 · Latest: Dec. 22, 2025
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 5 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 |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 19, 2025 | CTOR | A | 300,000 | — | — | 321,228 Direct | +1413.23% | Acquired | (price as of 2026-08-19) |
| Sept. 19, 2025 | CTOR | A | 300,000 | — | — | 321,228 Direct | +1413.23% | Acquired | (price as of 2026-08-19) |
| Sept. 19, 2025 | CTOR | A | 300,000 | — | — | 321,228 Direct | +1413.23% | Acquired | (price as of 2026-08-19) |
| July 28, 2025 | CTOR | J | 21,228 | — | — | 21,228 Direct | — | Acquired | (price as of 2026-08-19) |
| Dec. 12, 2024 | CTOR | A | 250,000 | — | — | 250,000 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 |
|---|---|---|---|---|---|---|---|
| Dec. 12, 2024 | CTOR | Stock Option (Right to Buy) | Common Stock (250,000) | $1.07 | Dec. 12, 2034 | 250,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).