Stephen David Prior
CIK 2042268 · View on SEC EDGAR ↗
Insider
First SEC filing: Nov. 5, 2024 · Latest: Nov. 5, 2024
On this page
Insider at
Insider transactions
0 buys (P)
3 sells (S)
Net:
$-7,363
+ 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 |
|---|---|---|---|---|---|---|---|---|---|
| Jan. 6, 2026 | ANTX | S | 2,858 | $1.01 | $2,887 | 59,086 Direct | -4.61% | Disposed | 484.7% (price as of 2026-08-20) |
| Jan. 5, 2026 | ANTX | S | 3,604 | $1.00 | $3,604 | 61,944 Direct | -5.50% | Disposed | 490.5% (price as of 2026-08-20) |
| Nov. 4, 2025 | ANTX | S | 765 | $1.14 | $872 | 65,548 Direct | -1.15% | Disposed | 418.0% (price as of 2026-08-20) |
| Jan. 3, 2025 | ANTX | S | 2,029 | $1.34 | $2,719 | 33,313 Direct | -5.74% | Disposed | 340.7% (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 |
|---|---|---|---|---|---|---|---|
| Feb. 26, 2025 | ANTX | Stock Option (right to buy) | Common Stock (56,000) | $1.13 | Feb. 25, 2035 | 56,000 | Acquired |
| Nov. 4, 2024 | ANTX | Stock Option (right to buy) | Common Stock (20,250) | $1.08 | Nov. 3, 2034 | 20,250 | 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.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Nov. 5, 2024 | ANTX | Common Stock | — | Direct |
| Nov. 5, 2024 | ANTX | Stock Option (right to buy)→ Common Stock (46,000) | 46,000 | Direct |
| Nov. 5, 2024 | ANTX | Stock Option (right to buy)→ Common Stock (29,200) | 29,200 | Direct |
| Nov. 5, 2024 | ANTX | Stock Option (right to buy)→ Common Stock (35,000) | 35,000 | Direct |