Gregory A. Ciongoli
Insider
Activist
First SEC filing: May 16, 2025 · Latest: June 11, 2026
Insider at
Insider transactions
2 buys (P)
0 sells (S)
Net: $949,541
Avg return of open purchases vs now: -16.1%
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 23, 2026 | GOSS | A | 30,000 | · | · | 30,000 Direct | · | Acquired | (price as of 2026-10-05) |
| Aug. 27, 2026 | RGNX | P | 53,407 | $9.36 | $499,890 | 118,035 Direct | +82.64% | Acquired | -17.1% (price as of 2026-10-05) |
| Aug. 26, 2026 | RGNX | P | 49,196 | $9.14 | $449,651 | 64,628 Direct | +318.79% | Acquired | -15.1% (price as of 2026-10-05) |
| Aug. 25, 2026 | RGNX | A | 15,432 | · | · | 15,432 Direct | · | Acquired | (price as of 2026-10-05) |
| Aug. 25, 2026 | RGNX | A | 69,609 | · | · | 69,609 Direct | · | Acquired | (price as of 2026-10-05) |
| June 9, 2026 | ATRA | A | 12,000 | · | · | 12,000 Direct | · | Acquired | (price as of 2026-10-05) |
| Jan. 12, 2026 | ZYME | A | 11,500 | · | · | 11,500 Direct | · | Acquired | (price as of 2026-10-05) |
| Jan. 12, 2026 | ZYME | A | 7,700 | · | · | 7,700 Direct | · | Acquired | (price as of 2026-10-05) |
| Aug. 12, 2025 | ZYME | A | 415,000 | $12.02 | $4,988,300 | 488,500 Direct | +564.63% | Acquired | 118.1% (price as of 2026-10-05) |
| Aug. 11, 2025 | ZYME | A | 62,000 | · | · | 62,000 Direct | · | Acquired | (price as of 2026-10-05) |
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 |
|---|---|---|---|---|---|---|---|
| Sept. 23, 2026 | GOSS | Stock Option (Right to Buy) | Common Stock | $10.99 | Sept. 22, 2036 | 30,000 | Acquired |
| Aug. 25, 2026 | RGNX | Stock Options (Right to buy) | Common Stock | $8.91 | Aug. 25, 2036 | 69,609 | Acquired |
| Jan. 12, 2026 | ZYME | Stock Option (Right to Buy) | Common Stock | $23.16 | Jan. 11, 2036 | 11,500 | Acquired |
| Jan. 12, 2026 | ZYME | Restricted Stock Unit | Common Stock | · | Jan. 12, 2027 | 7,700 | Acquired |
| Aug. 11, 2025 | ZYME | Stock Option (Right to Buy) | Common Stock | $12.44 | Aug. 10, 2035 | 62,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 4 holdings
Securities held when first becoming an insider, per SEC Form 3.