Hubert Chen
CIK 2142262 · View on SEC EDGAR ↗
Insider
First SEC filing: Aug. 4, 2026 · Latest: Aug. 6, 2026
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 1 non-open-market transaction 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
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 4, 2026 | ATTO | A | 140,000 | — | — | 140,000 Direct | — | Acquired | (price as of 2026-08-19) |
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. 4, 2026 | ATTO | Stock Option (Right to Buy) | Common Stock (140,000) | $17.00 | Aug. 3, 2036 | 140,000 | 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.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Aug. 4, 2026 | ATTO | Common Stock | 2,960 | Direct |
| Aug. 4, 2026 | ATTO | Stock Option (Right to Buy)→ Common Stock (115,446) | 115,446 | Direct |
| Aug. 4, 2026 | ATTO | Stock Option (Right to Buy)→ Common Stock (96,878) | 96,878 | Direct |
| Aug. 4, 2026 | ATTO | Stock Option (Right to Buy)→ Common Stock (80,731) | 80,731 | Direct |