Jeffrey D Keyser
CIK 1393516 · View on SEC EDGAR ↗
Insider
First SEC filing: June 10, 2020 · Latest: June 10, 2020
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
4 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 11, 2020 | LTRN | P | 10,000 | $15.00 | $150,000 | 10,000 Direct | — | Acquired | -83.3% (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. 4, 2021 | LTRN | Stock Option (Right to Buy) | Common Stock (3,200) | $10.32 | Nov. 4, 2031 | 3,200 | Acquired |
| June 15, 2020 | LTRN | Stock Option | Common Stock (9,135) | — | — | 9,135 | Acquired |
| June 15, 2020 | LTRN | Series A Preferred Stock | Common Stock | — | — | 18,349 | Disposed |
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.