Insider · CIK 0001898828
Oscar Leland Mahan
Files at JMSB (John Marshall Bancorp, Inc.). First filing Nov 19, 2024, latest Jun 5, 2026.
In brief
Oscar Leland Mahan files SEC Form 4 as director at JMSB (John Marshall Bancorp, Inc.). Since Nov 19, 2024, Oscar Leland Mahan has reported 3 open-market buys worth $29k and 5 open-market sells worth $537k, the latest filed on Jun 5, 2026.
A track record needs three past buys with six months of prices behind them; Oscar Leland Mahan has 2, so none is measured yet.
The newest scored trade: bought $3,764 of JMSB on Jun 3, 2026, filed Jun 5, 2026, scored 18 (weak). In the last 12 months: 1 buy worth $3,764 and 0 sells worth $0.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
JMSB: John Marshall Bancorp, 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 |
|---|---|---|---|---|---|
| 18Weak | John Marshall Bancorp, Inc. | $3,764 179 shares | +0% | +25% from low-4% from high | |
| 22Weak | John Marshall Bancorp, Inc. | $13k 712 shares | +1% | +32% from low-28% from high | |
| 24Weak | JMSBsell John Marshall Bancorp, Inc. | $88k 5,133 shares | -5% | +19% from low-35% from high | |
| 42Moderate | John Marshall Bancorp, Inc. | $210k 9,383 shares | -9% | - | |
| 39Weak | John Marshall Bancorp, Inc. | $82k 3,573 shares | -4% | - | |
| 37Weak | John Marshall Bancorp, Inc. | $62k 2,615 shares | -3% | - | |
| 10Weak | JMSBbuy John Marshall Bancorp, Inc. | $12k 501 shares | +0% | - | |
| 40Moderate | John Marshall Bancorp, Inc. | $95k 3,928 shares | -4% | - |
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 |
|---|---|---|---|---|---|
| May 2, 2025 | JMSB John Marshall Bancorp, Inc. | 7,000 0.05% of outstanding | $121k | May 2, 2025 | none |
| Nov 18, 2024 | JMSB John Marshall Bancorp, Inc. | 20,000 0.14% of outstanding | $559k | Nov 18, 2024 | none |
Transactions
The newest 50 of 138 rows this insider has filed.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Jun 3, 2026 | JMSB John Marshall Bancorp, Inc. | POpen-market purchase Common Stock | +179 | $21.03 | $3,764 | 94,981 | Jun 5, 2026 |
| Dec 16, 2025 | JMSB John Marshall Bancorp, Inc. | AGrant or award Common Stock | +1,901 | $0.00 | $0 | 94,802 | Dec 18, 2025 |
| Jul 15, 2025 | JMSB John Marshall Bancorp, Inc. | POpen-market purchase Common Stock | +712 | $18.63 | $13k | 92,901 | Jul 17, 2025 |
| May 5, 2025 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -1,733 | $17.00 | $29k | 95,589 | May 6, 2025 |
| May 5, 2025 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -765 | $17.01 | $13k | 94,824 | May 6, 2025 |
| May 5, 2025 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -125 | $17.02 | $2,128 | 94,699 | May 6, 2025 |
| May 5, 2025 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -9 | $17.04 | $153 | 94,690 | May 6, 2025 |
| May 5, 2025 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -3 | $17.05 | $51 | 94,687 | May 6, 2025 |
| May 5, 2025 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -9 | $17.05 | $153 | 94,678 | May 6, 2025 |
| May 5, 2025 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -278 | $17.06 | $4,741 | 94,400 | May 6, 2025 |
| May 5, 2025 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -156 | $17.08 | $2,664 | 94,244 | May 6, 2025 |
| May 5, 2025 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -2 | $17.08 | $34 | 94,242 | May 6, 2025 |
| May 5, 2025 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -2 | $17.09 | $34 | 94,240 | May 6, 2025 |
| May 5, 2025 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -1,116 | $17.10 | $19k | 93,124 | May 6, 2025 |
| May 5, 2025 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -100 | $17.10 | $1,710 | 93,024 | May 6, 2025 |
| May 5, 2025 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -300 | $17.12 | $5,136 | 92,724 | May 6, 2025 |
| May 5, 2025 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -3 | $17.15 | $51 | 92,721 | May 6, 2025 |
| May 5, 2025 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -100 | $17.15 | $1,715 | 92,621 | May 6, 2025 |
| May 5, 2025 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -100 | $17.18 | $1,718 | 92,521 | May 6, 2025 |
| May 5, 2025 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -302 | $17.19 | $5,190 | 92,219 | May 6, 2025 |
| May 5, 2025 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -30 | $17.33 | $520 | 92,189 | May 6, 2025 |
| Apr 28, 2025 | JMSB John Marshall Bancorp, Inc. | MOption exercise Common Stock | +10,250 | $11.77 | $121k | 99,405 | Apr 29, 2025 |
| Apr 28, 2025 | JMSB John Marshall Bancorp, Inc. | FTax withholding Common Stock | -2,083 | $16.16 | $34k | 97,322 | Apr 29, 2025 |
| Apr 28, 2025 | JMSB John Marshall Bancorp, Inc. | MOption exercise Stock Options (right to buy)derivative | -10,250 | $0.00 | $0 | 0 | Apr 29, 2025 |
| Dec 17, 2024 | JMSB John Marshall Bancorp, Inc. | AGrant or award Common Stock | +1,610 | $0.00 | $0 | 89,155 | Dec 19, 2024 |
| Nov 20, 2024 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -1 | $22.67 | $23 | 91,117 | Nov 21, 2024 |
| Nov 20, 2024 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -1,392 | $22.00 | $31k | 99,109 | Nov 21, 2024 |
| Nov 20, 2024 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -142 | $22.01 | $3,125 | 98,967 | Nov 21, 2024 |
| Nov 20, 2024 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -16 | $22.69 | $363 | 91,101 | Nov 21, 2024 |
| Nov 20, 2024 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -32 | $22.74 | $728 | 91,069 | Nov 21, 2024 |
| Nov 20, 2024 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -846 | $22.02 | $19k | 98,121 | Nov 21, 2024 |
| Nov 20, 2024 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -4 | $22.76 | $91 | 91,065 | Nov 21, 2024 |
| Nov 20, 2024 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -108 | $22.03 | $2,379 | 98,013 | Nov 21, 2024 |
| Nov 20, 2024 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -300 | $22.77 | $6,831 | 90,765 | Nov 21, 2024 |
| Nov 20, 2024 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -216 | $22.03 | $4,758 | 97,797 | Nov 21, 2024 |
| Nov 20, 2024 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -2 | $22.04 | $44 | 97,795 | Nov 21, 2024 |
| Nov 20, 2024 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -9 | $22.79 | $205 | 90,756 | Nov 21, 2024 |
| Nov 20, 2024 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -40 | $22.04 | $882 | 97,755 | Nov 21, 2024 |
| Nov 20, 2024 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -318 | $22.80 | $7,250 | 90,438 | Nov 21, 2024 |
| Nov 20, 2024 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -101 | $22.09 | $2,231 | 97,654 | Nov 21, 2024 |
| Nov 20, 2024 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -292 | $22.81 | $6,661 | 90,146 | Nov 21, 2024 |
| Nov 20, 2024 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -200 | $22.13 | $4,426 | 97,454 | Nov 21, 2024 |
| Nov 20, 2024 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -236 | $22.83 | $5,388 | 89,910 | Nov 21, 2024 |
| Nov 20, 2024 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -105 | $22.16 | $2,327 | 97,349 | Nov 21, 2024 |
| Nov 20, 2024 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -6 | $22.84 | $137 | 89,904 | Nov 21, 2024 |
| Nov 20, 2024 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -89 | $22.17 | $1,973 | 97,260 | Nov 21, 2024 |
| Nov 20, 2024 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -89 | $22.92 | $2,040 | 89,815 | Nov 21, 2024 |
| Nov 20, 2024 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -102 | $22.23 | $2,267 | 97,158 | Nov 21, 2024 |
| Nov 20, 2024 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -100 | $23.00 | $2,300 | 89,715 | Nov 21, 2024 |
| Nov 20, 2024 | JMSB John Marshall Bancorp, Inc. | SOpen-market sale Common Stock | -100 | $22.25 | $2,225 | 97,058 | Nov 21, 2024 |
Questions about Oscar Leland Mahan
Answered from the filings on this page, as of the latest one.
Is Oscar Leland Mahan buying or selling?
In the last 12 months Oscar Leland Mahan reported 1 open-market buy worth $3,764 and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $3,764 of JMSB on Jun 3, 2026. Grants, option exercises and tax withholding are not counted.
How did Oscar Leland Mahan's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Oscar Leland Mahan has 2.
Where does Oscar Leland Mahan file Form 4?
Oscar Leland Mahan has filed Form 4 at JMSB (John Marshall Bancorp, Inc.). 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.