Yanina Grant-Huerta
CIK 2064348 · View on SEC EDGAR ↗
Insider
First SEC filing: April 10, 2025 · Latest: April 10, 2025
On this page
Insider at
Insider transactions
0 buys (P)
8 sells (S)
Net:
$-56,523
+ 4 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
4 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| May 18, 2026 | ATRA | S | 2,414 | $9.13 | $22,040 | 49,636 Direct | -4.64% | Disposed | 1.5% (price as of 2026-08-21) |
| March 2, 2026 | ATRA | S | 100 | $5.08 | $508 | 31,750 Direct | -0.31% | Disposed | 82.5% (price as of 2026-08-21) |
| March 2, 2026 | ATRA | S | 377 | $5.08 | $1,915 | 31,850 Direct | -1.17% | Disposed | 82.5% (price as of 2026-08-21) |
| March 2, 2026 | ATRA | S | 1,603 | $5.08 | $8,143 | 32,227 Direct | -4.74% | Disposed | 82.5% (price as of 2026-08-21) |
| March 2, 2026 | ATRA | S | 24 | $5.08 | $122 | 33,830 Direct | -0.07% | Disposed | 82.5% (price as of 2026-08-21) |
| Nov. 17, 2025 | ATRA | S | 74 | $13.19 | $976 | 33,454 Direct | -0.22% | Disposed | -29.7% (price as of 2026-08-21) |
| Nov. 17, 2025 | ATRA | S | 85 | $13.19 | $1,121 | 33,528 Direct | -0.25% | Disposed | -29.7% (price as of 2026-08-21) |
| Nov. 17, 2025 | ATRA | S | 1,645 | $13.19 | $21,698 | 33,613 Direct | -4.67% | Disposed | -29.7% (price as of 2026-08-21) |
| Aug. 18, 2025 | ATRA | S | 1,668 | $11.61 | $19,365 | 35,258 Direct | -4.52% | Disposed | -20.2% (price as of 2026-08-21) |
| Aug. 18, 2025 | ATRA | S | 86 | $11.61 | $998 | 36,926 Direct | -0.23% | Disposed | -20.2% (price as of 2026-08-21) |
| Aug. 18, 2025 | ATRA | S | 55 | $11.61 | $639 | 37,012 Direct | -0.15% | Disposed | -20.2% (price as of 2026-08-21) |
| May 16, 2025 | ATRA | S | 2,218 | $6.76 | $14,994 | 37,067 Direct | -5.65% | Disposed | 37.1% (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 |
|---|---|---|---|---|---|---|---|
| Aug. 14, 2026 | IMA | Employee Stock Option (right to buy) [F1] | Common Stock (56,000) | $5.84 | Aug. 13, 2036 | 56,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 5 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| April 10, 2025 | ATRA | Common Stock | — | Direct |
| April 10, 2025 | ATRA | Employee Stock Option (Right to Buy)→ Common Stock (800) | 800 | Direct |
| April 10, 2025 | ATRA | Employee Stock Option (Right to Buy)→ Common Stock (1,100) | 1,100 | Direct |
| April 10, 2025 | ATRA | Employee Stock Option (Right to Buy)→ Common Stock (550) | 550 | Direct |
| April 10, 2025 | ATRA | Employee Stock Option (Right to Buy)→ Common Stock (275) | 275 | Direct |