Linda Dong
CIK 1765204 · View on SEC EDGAR ↗
Insider
First SEC filing: April 5, 2019 · Latest: June 12, 2026
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 25 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
25 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 17, 2022 | ASTH | S | 250,000 | $37.00 | $9,250,000 | 270,081 Indirect | -48.07% | Disposed | 6.7% (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 |
|---|---|---|---|---|---|---|---|
| Nov. 3, 2025 | ASTH | Stock Option (right to Buy) | Common Stock (20,000) | $18.20 | Nov. 11, 2025 | 20,000 | Disposed |
| Sept. 10, 2024 | ASTH | Stock Option (right to buy) | Common Stock (11,000) | $15.35 | Oct. 11, 2024 | 11,000 | Disposed |
| March 9, 2023 | ASTH | Stock Option (right to buy) | Common Stock (62,500) | $10.00 | April 5, 2023 | 62,500 | Disposed |
| Jan. 20, 2022 | ASTH | Stock Option (right to buy) | Common Stock (8,500) | $53.01 | Jan. 18, 2025 | 8,500 | Acquired |
| Nov. 11, 2020 | ASTH | Stock Option (right to buy) | Common Stock (20,000) | $18.20 | Nov. 11, 2025 | 20,000 | Acquired |
| May 27, 2020 | FLGT | Stock Option (Right to Buy) | Common Stock (5,000) | $15.82 | May 26, 2030 | 5,000 | Acquired |
| March 4, 2020 | ASTH | Stock Option (right to buy) | Common Stock (62,500) | $10.00 | April 5, 2020 | 62,500 | Disposed |
| March 4, 2020 | ASTH | Stock Option (right to buy) | Common Stock (62,500) | $10.00 | April 5, 2023 | 62,500 | Acquired |
| Oct. 11, 2019 | ASTH | Stock Options | Common Stock (11,000) | $15.35 | Oct. 11, 2024 | 11,000 | Acquired |
| Aug. 1, 2019 | FLGT | Stock Option (Right to Buy) | Common Stock (20,000) | $7.56 | Aug. 1, 2029 | 20,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 3 holdings
Securities held when first becoming an insider, per SEC Form 3.