Linda O'Brien
CIK 1967496 · View on SEC EDGAR ↗
Insider
First SEC filing: March 6, 2023 · Latest: June 17, 2026
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 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
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 15, 2026 | ATRO | J | 240 | — | — | 240 Indirect | — | Acquired | (price as of 2026-08-21) |
| June 15, 2026 | ATRO | J | 4,274 | — | — | 4,274 Direct | — | Acquired | (price as of 2026-08-21) |
| Aug. 23, 2023 | ATRO | M | 7,438 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-21) |
| Aug. 23, 2023 | ATRO | M | 7,438 | — | — | 7,438 Direct | — | Acquired | (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. 23, 2023 | ATRO | Restricted Stock Unit | $.01 PV Com Stk (7,438) | — | — | 7,438 | 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.