Insider · CIK 0001604834
Mark James Litton
Files at LONA (LeonaBio, Inc.). First filing Jan 3, 2025, latest Mar 5, 2026.
Mark James Litton files SEC Form 4 as CEO, president and director at LONA (LeonaBio, Inc.). Since Jan 3, 2025, Mark James Litton has reported 0 open-market buys worth $0 and 4 open-market sells worth $67k, the latest filed on Mar 5, 2026.
A track record needs three past buys with six months of prices behind them; Mark James Litton has 0, so none is measured yet.
The newest scored trade: sold $28k of LONA on Mar 4, 2026, filed Mar 5, 2026, scored 30 (weak). In the last 12 months: 0 buys worth $0 and 2 sells worth $45k.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
LONA: LeonaBio, Inc.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 30Weak | LeonaBio, Inc. | $28k 5,156 shares | -8% | +161% from low-21% from high | |
| 25Weak | LeonaBio, Inc. | $18k 2,586 shares | -6% | +204% from low-8% from high | |
| 25Weak | LeonaBio, Inc. | $7,374 25,123 shares | -7% | - | |
| 25Weak | LeonaBio, Inc. | $14k 25,107 shares | -9% | - |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Mar 4, 2026 | LONA LEONABIO, INC. | 5,156 0.06% of outstanding | $28k | Mar 4, 2026 | $18k |
| Jul 1, 2025 | LONA ATHIRA PHARMA, INC. | 25,123 0.06% of outstanding | $7,374 | Jul 1, 2025 | none |
| Jan 2, 2025 | LONA ATHIRA PHARMA, INC. | 25,107 0.06% of outstanding | $14k | Jan 2, 2025 | none |
Transactions
Every row this insider has filed, 16 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Apr 9, 2026 | LONA LeonaBio, Inc. | AGrant or award Stock Option (Right to Buy)derivative | +750,000 | $0.00 | $0 | 750,000 | Apr 13, 2026 |
| Mar 3, 2026 | LONA LeonaBio, Inc. | MOption exercise Common Stock | +22,254 | $0.00 | $0 | 63,082 | Mar 5, 2026 |
| Mar 4, 2026 | LONA LeonaBio, Inc. | SOpen-market sale Common Stock | -5,156 | $5.37 | $28k | 57,926 | Mar 5, 2026 |
| Mar 3, 2026 | LONA LeonaBio, Inc. | MOption exercise Restricted Stock Unitsderivative | -22,254 | $0.00 | $0 | 0 | Mar 5, 2026 |
| Dec 31, 2025 | LONA LeonaBio, Inc. | MOption exercise Common Stock | +10,834 | $0.00 | $0 | 43,414 | Jan 5, 2026 |
| Jan 2, 2026 | LONA LeonaBio, Inc. | SOpen-market sale Common Stock | -2,586 | $6.88 | $18k | 40,828 | Jan 5, 2026 |
| Dec 31, 2025 | LONA LeonaBio, Inc. | MOption exercise Restricted Stock Unitsderivative | -10,834 | $0.00 | $0 | 0 | Jan 5, 2026 |
| Dec 24, 2025 | LONA LeonaBio, Inc. | AGrant or award Stock Option (Right to Buy)derivative | +133,526 | $0.00 | $0 | 133,526 | Dec 29, 2025 |
| Jun 30, 2025 | LONA LeonaBio, Inc. | MOption exercise Common Stock | +108,334 | $0.00 | $0 | 350,925 | Jul 2, 2025 |
| Jul 1, 2025 | LONA LeonaBio, Inc. | SOpen-market sale Common Stock | -25,123 | $0.29 | $7,374 | 325,802 | Jul 2, 2025 |
| Jun 30, 2025 | LONA LeonaBio, Inc. | MOption exercise Restricted Stock Unitsderivative | -108,334 | $0.00 | $0 | 108,333 | Jul 2, 2025 |
| Mar 3, 2025 | LONA LeonaBio, Inc. | AGrant or award Stock Option (Right to Buy)derivative | +333,815 | $0.00 | $0 | 333,815 | Mar 4, 2025 |
| Mar 3, 2025 | LONA LeonaBio, Inc. | AGrant or award Restricted Stock Unitsderivative | +222,543 | $0.00 | $0 | 222,543 | Mar 4, 2025 |
| Dec 31, 2024 | LONA LeonaBio, Inc. | MOption exercise Common Stock | +108,333 | $0.00 | $0 | 267,698 | Jan 3, 2025 |
| Jan 2, 2025 | LONA LeonaBio, Inc. | SOpen-market sale Common Stock | -25,107 | $0.56 | $14k | 242,591 | Jan 3, 2025 |
| Dec 31, 2024 | LONA LeonaBio, Inc. | MOption exercise Restricted Stock Unitsderivative | -108,333 | $0.00 | $0 | 216,667 | Jan 3, 2025 |
Questions about Mark James Litton
Answered from the filings on this page, as of the latest one.
Is Mark James Litton buying or selling?
In the last 12 months Mark James Litton reported 0 open-market buys worth $0 and 2 open-market sells worth $45k on SEC Form 4; the latest was sold $28k of LONA on Mar 4, 2026. Grants, option exercises and tax withholding are not counted.
How did Mark James Litton's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Mark James Litton has 0.
Where does Mark James Litton file Form 4?
Mark James Litton has filed Form 4 at LONA (LeonaBio, Inc.) as PRESIDENT and CEO. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.