Robin Shane Readnour
CIK 1914883 · View on SEC EDGAR ↗
Insider
First SEC filing: March 24, 2022 · Latest: March 24, 2022
On this page
Insider at
Insider transactions
0 buys (P)
2 sells (S)
Net:
$-212,766
+ 18 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
18 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 17, 2026 | ANTX | S 10b5-1 | 16,696 | $6.01 | $100,343 | 565,592 Indirect | -2.87% | Disposed | -1.7% (price as of 2026-08-20) |
| Aug. 17, 2026 | ANTX | S 10b5-1 | 18,706 | $6.01 | $112,423 | 633,867 Indirect | -2.87% | Disposed | -1.7% (price as of 2026-08-20) |
| Dec. 10, 2024 | ANTX | P | 5,000 | $1.49 | $7,450 | 652,573 Indirect | +0.77% | Acquired | 296.3% (price as of 2026-08-20) |
| Dec. 10, 2024 | ANTX | P | 5,000 | $1.49 | $7,450 | 582,288 Indirect | +0.87% | Acquired | 296.3% (price as of 2026-08-20) |
| Dec. 9, 2024 | ANTX | P | 18,483 | $1.43 | $26,431 | 647,573 Indirect | +2.94% | Acquired | 312.9% (price as of 2026-08-20) |
| Dec. 9, 2024 | ANTX | P | 12,289 | $1.43 | $17,573 | 577,288 Indirect | +2.18% | Acquired | 312.9% (price as of 2026-08-20) |
| Dec. 6, 2024 | ANTX | P | 6,517 | $1.45 | $9,450 | 629,090 Indirect | +1.05% | Acquired | 307.2% (price as of 2026-08-20) |
| Dec. 6, 2024 | ANTX | P | 12,711 | $1.44 | $18,304 | 564,999 Indirect | +2.30% | Acquired | 310.1% (price as of 2026-08-20) |
| Nov. 27, 2024 | ANTX | P | 25,000 | $1.42 | $35,500 | 622,573 Indirect | +4.18% | Acquired | 315.8% (price as of 2026-08-20) |
| Nov. 27, 2024 | ANTX | P | 25,000 | $1.42 | $35,500 | 552,288 Indirect | +4.74% | Acquired | 315.8% (price as of 2026-08-20) |
| Nov. 26, 2024 | ANTX | P | 12,500 | $1.39 | $17,375 | 597,573 Indirect | +2.14% | Acquired | 324.8% (price as of 2026-08-20) |
| Nov. 26, 2024 | ANTX | P | 12,500 | $1.39 | $17,375 | 527,288 Indirect | +2.43% | Acquired | 324.8% (price as of 2026-08-20) |
| Nov. 20, 2024 | ANTX | P | 25,000 | $1.15 | $28,750 | 514,788 Indirect | +5.10% | Acquired | 413.5% (price as of 2026-08-20) |
| Nov. 20, 2024 | ANTX | P | 25,000 | $1.16 | $29,000 | 585,073 Indirect | +4.46% | Acquired | 409.1% (price as of 2026-08-20) |
| Nov. 19, 2024 | ANTX | P | 75,000 | $1.04 | $78,000 | 489,788 Indirect | +18.08% | Acquired | 467.8% (price as of 2026-08-20) |
| Nov. 19, 2024 | ANTX | P | 75,000 | $1.03 | $77,250 | 560,073 Indirect | +15.46% | Acquired | 473.3% (price as of 2026-08-20) |
| Jan. 12, 2024 | ANTX | S 10b5-1 | 719 | $21.91 | $15,753 | 485,073 Indirect | -0.15% | Disposed | -73.0% (price as of 2026-08-20) |
| Jan. 12, 2024 | ANTX | S 10b5-1 | 706 | $21.92 | $15,476 | 414,788 Indirect | -0.17% | Disposed | -73.1% (price as of 2026-08-20) |
| Jan. 10, 2024 | ANTX | S 10b5-1 | 1,800 | $21.92 | $39,456 | 485,792 Indirect | -0.37% | Disposed | -73.1% (price as of 2026-08-20) |
| Jan. 10, 2024 | ANTX | S 10b5-1 | 1,869 | $21.93 | $40,987 | 415,494 Indirect | -0.45% | Disposed | -73.1% (price as of 2026-08-20) |
| March 29, 2022 | ANTX | P | 82,618 | $15.00 | $1,239,270 | 487,592 Indirect | +20.40% | Acquired | -60.6% (price as of 2026-08-20) |
| March 29, 2022 | ANTX | P | 70,716 | $15.00 | $1,060,740 | 417,363 Indirect | +20.40% | Acquired | -60.6% (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 |
|---|---|---|---|---|---|---|---|
| March 19, 2026 | ANTX | Stock Option (right to buy) | Common Stock (23,742) | $5.91 | June 6, 2033 | 23,742 | Disposed |
| March 19, 2026 | ANTX | Stock Option (right to buy) | Common Stock (23,742) | — | June 6, 2033 | 23,742 | Acquired |
| March 19, 2026 | ANTX | Stock Option (right to buy) | Common Stock (20,724) | $17.28 | May 11, 2032 | 20,724 | Disposed |
| March 19, 2026 | ANTX | Stock Option (right to buy) | Common Stock (20,724) | — | May 11, 2032 | 20,724 | Acquired |
| Feb. 20, 2026 | ANTX | Stock Option (Right to Buy) | Common Stock (20,400) | $1.04 | Feb. 19, 2036 | 20,400 | Acquired |
| May 22, 2025 | ANTX | Stock Option (Right to Buy) | Common Stock (19,111) | $1.19 | May 21, 2035 | 19,111 | Acquired |
| June 19, 2024 | ANTX | Stock Option (Right to Buy) | Common Stock (64,503) | $2.00 | June 18, 2034 | 64,503 | Acquired |
| June 7, 2023 | ANTX | Stock Option (right to buy) | Common Stock (23,742) | $5.91 | June 6, 2033 | 23,742 | Acquired |
| May 12, 2022 | ANTX | Stock Option (right to buy) | Common Stock (20,724) | $17.28 | May 11, 2032 | 20,724 | Acquired |
| March 29, 2022 | ANTX | Series B Convertible Preferred Stock | Common Stock (71,839) | — | — | 71,839 | Disposed |
| March 29, 2022 | ANTX | Series B Convertible Preferred Stock | Common Stock (61,491) | — | — | 61,491 | Disposed |
| March 29, 2022 | ANTX | Series A Convertible Preferred Stock | Common Stock (333,135) | — | — | 333,135 | Disposed |
| March 29, 2022 | ANTX | Series A Convertible Preferred Stock | Common Stock (285,156) | — | — | 285,156 | Disposed |
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 |
|---|---|---|---|---|
| March 24, 2022 | ANTX | Series A Convertible Preferred Stock→ Common Stock (285,156) | 285,156 | Indirect |
| March 24, 2022 | ANTX | Series A Convertible Preferred Stock→ Common Stock (333,135) | 333,135 | Indirect |
| March 24, 2022 | ANTX | Series B Convertible Preferred Stock→ Common Stock (61,491) | 61,491 | Indirect |
| March 24, 2022 | ANTX | Series B Convertible Preferred Stock→ Common Stock (71,839) | 71,839 | Indirect |