Insider · CIK 0001777631
Stephen K. Brannan
Files at SER (Serina Therapeutics, Inc.), KRTX (Karuna Therapeutics, Inc.). First filing Nov 13, 2023, latest Jul 9, 2026.
In brief
Stephen K. Brannan files SEC Form 4 as director and officer at KRTX (Karuna Therapeutics, Inc.), and also at SER (Serina Therapeutics, Inc.). Since Nov 13, 2023, Stephen K. Brannan has reported 1 open-market buy worth $2,030 and 5 open-market sells worth $11M, the latest filed on Jul 9, 2026.
A track record needs three past buys with six months of prices behind them; Stephen K. Brannan has 0, so none is measured yet.
The newest scored trade: bought $2,030 of SER on Jul 7, 2026, filed Jul 9, 2026, scored 31 (weak). In the last 12 months: 1 buy worth $2,030 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.
SER: Serina Therapeutics, 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 |
|---|---|---|---|---|---|
| 31Weak | SERbuy Serina Therapeutics, Inc. | $2,030 1,000 shares | - | +70% from low-64% from high | |
| 10Weak | Karuna Therapeutics, Inc. | $1.6M 5,000 shares | -11% | - | |
| 10Weak | Karuna Therapeutics, Inc. | $1.6M 5,000 shares | -11% | - | |
| 15Weak | Karuna Therapeutics, Inc. | $4.8M 15,000 shares | -28% | - | |
| 10Weak | Karuna Therapeutics, Inc. | $2.0M 10,000 shares | -22% | - | |
| 8Weak | Karuna Therapeutics, Inc. | $889k 5,000 shares | -13% | - |
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 8, 2024 | KRTX Karuna Therapeutics, Inc. | 5,000 0.01% of outstanding | $1.6M | Mar 8, 2024 | $8.4M |
| Feb 8, 2024 | KRTX Karuna Therapeutics, Inc. | 5,000 0.01% of outstanding | $1.6M | Feb 8, 2024 | $7.7M |
| Jan 8, 2024 | KRTX Karuna Therapeutics, Inc. | 15,000 0.04% of outstanding | $4.8M | Jan 8, 2024 | $3.8M |
| Dec 8, 2023 | Karuna Therapeutics, Inc. | 10,000 0.03% of outstanding | $2.0M | Dec 8, 2023 | $2.7M |
| Nov 8, 2023 | Karuna Therapeutics, Inc. | 5,000 0.01% of outstanding | $889k | Nov 8, 2023 | $2.7M |
Transactions
The newest 50 of 54 rows this insider has filed.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Jul 7, 2026 | SER Serina Therapeutics, Inc. | POpen-market purchase Common Stock | +1,000 | $2.03 | $2,030 | 1,000 | Jul 9, 2026 |
| Jun 17, 2026 | SER Serina Therapeutics, Inc. | AGrant or award Stock Option (right to buy)derivative | +15,250 | $0.00 | $0 | 15,250 | Jun 22, 2026 |
| Nov 7, 2025 | SER Serina Therapeutics, Inc. | AGrant or award Stock Option (right to buy)derivative | +10,000 | $0.00 | $0 | 10,000 | Nov 10, 2025 |
| May 22, 2025 | SER Serina Therapeutics, Inc. | AGrant or award Stock Option (right to buy)derivative | +40,000 | $0.00 | $0 | 40,000 | Jun 17, 2025 |
| Mar 18, 2024 | KRTX Karuna Therapeutics, Inc. | DDisposition to issuer Common Stock | -36,117 | $330.00 | $12M | 6,487 | Mar 18, 2024 |
| Mar 18, 2024 | KRTX Karuna Therapeutics, Inc. | DDisposition to issuer Common Stock | -6,487 | $330.00 | $2.1M | 0 | Mar 18, 2024 |
| Mar 18, 2024 | KRTX Karuna Therapeutics, Inc. | DDisposition to issuer Restricted Stock Unitsderivative | -10,306 | $330.00 | $3.4M | 0 | Mar 18, 2024 |
| Mar 18, 2024 | KRTX Karuna Therapeutics, Inc. | DDisposition to issuer Option (right to buy)derivative | -4,677 | $324.55 | $1.5M | 0 | Mar 18, 2024 |
| Mar 18, 2024 | KRTX Karuna Therapeutics, Inc. | DDisposition to issuer Option (right to buy)derivative | -6,362 | $320.80 | $2.0M | 0 | Mar 18, 2024 |
| Mar 18, 2024 | KRTX Karuna Therapeutics, Inc. | DDisposition to issuer Option (right to buy)derivative | -50,000 | $230.28 | $12M | 0 | Mar 18, 2024 |
| Mar 18, 2024 | KRTX Karuna Therapeutics, Inc. | DDisposition to issuer Option (right to buy)derivative | -12,837 | $198.36 | $2.5M | 0 | Mar 18, 2024 |
| Mar 18, 2024 | KRTX Karuna Therapeutics, Inc. | DDisposition to issuer Option (right to buy)derivative | -37,813 | $218.03 | $8.2M | 0 | Mar 18, 2024 |
| Mar 18, 2024 | KRTX Karuna Therapeutics, Inc. | DDisposition to issuer Option (right to buy)derivative | -17,350 | $142.74 | $2.5M | 0 | Mar 18, 2024 |
| Mar 8, 2024 | KRTX Karuna Therapeutics, Inc. | MOption exercise Common Stock10b5-1 | +2,500 | $5.45 | $14k | 42,604 | Mar 11, 2024 |
| Mar 8, 2024 | KRTX Karuna Therapeutics, Inc. | MOption exercise Common Stock10b5-1 | +3,209 | $131.64 | $422k | 45,813 | Mar 11, 2024 |
| Mar 8, 2024 | KRTX Karuna Therapeutics, Inc. | MOption exercise Common Stock10b5-1 | +1,791 | $111.97 | $201k | 47,604 | Mar 11, 2024 |
| Mar 8, 2024 | KRTX Karuna Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -4,900 | $318.33 | $1.6M | 42,704 | Mar 11, 2024 |
| Mar 8, 2024 | KRTX Karuna Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -100 | $318.96 | $32k | 42,604 | Mar 11, 2024 |
| Mar 8, 2024 | KRTX Karuna Therapeutics, Inc. | MOption exercise Option (right to buy)derivative10b5-1 | -2,500 | $0.00 | $0 | 4,677 | Mar 11, 2024 |
| Mar 8, 2024 | KRTX Karuna Therapeutics, Inc. | MOption exercise Option (right to buy)derivative10b5-1 | -3,209 | $0.00 | $0 | 12,837 | Mar 11, 2024 |
| Mar 8, 2024 | KRTX Karuna Therapeutics, Inc. | MOption exercise Option (right to buy)derivative10b5-1 | -1,791 | $0.00 | $0 | 37,813 | Mar 11, 2024 |
| Feb 13, 2024 | KRTX Karuna Therapeutics, Inc. | AGrant or award Restricted Stock Unitsderivative | +10,306 | $0.00 | $0 | 10,306 | Feb 15, 2024 |
| Feb 8, 2024 | KRTX Karuna Therapeutics, Inc. | MOption exercise Common Stock10b5-1 | +2,500 | $5.45 | $14k | 41,150 | Feb 12, 2024 |
| Feb 8, 2024 | KRTX Karuna Therapeutics, Inc. | MOption exercise Common Stock10b5-1 | +5,000 | $111.97 | $560k | 46,150 | Feb 12, 2024 |
| Feb 8, 2024 | KRTX Karuna Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -4,182 | $316.05 | $1.3M | 41,968 | Feb 12, 2024 |
| Feb 8, 2024 | KRTX Karuna Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -818 | $316.56 | $259k | 41,150 | Feb 12, 2024 |
| Feb 9, 2024 | KRTX Karuna Therapeutics, Inc. | FTax withholding Common Stock10b5-1 | -1,046 | $317.14 | $332k | 40,104 | Feb 12, 2024 |
| Feb 8, 2024 | KRTX Karuna Therapeutics, Inc. | MOption exercise Option (right to buy)derivative10b5-1 | -2,500 | $0.00 | $0 | 7,177 | Feb 12, 2024 |
| Feb 8, 2024 | KRTX Karuna Therapeutics, Inc. | MOption exercise Option (right to buy)derivative10b5-1 | -5,000 | $0.00 | $0 | 39,604 | Feb 12, 2024 |
| Jan 8, 2024 | KRTX Karuna Therapeutics, Inc. | MOption exercise Common Stock10b5-1 | +2,500 | $5.45 | $14k | 38,650 | Jan 9, 2024 |
| Jan 8, 2024 | KRTX Karuna Therapeutics, Inc. | MOption exercise Common Stock10b5-1 | +5,304 | $131.64 | $698k | 43,954 | Jan 9, 2024 |
| Jan 8, 2024 | KRTX Karuna Therapeutics, Inc. | MOption exercise Common Stock10b5-1 | +9,696 | $111.97 | $1.1M | 53,650 | Jan 9, 2024 |
| Jan 8, 2024 | KRTX Karuna Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -15,000 | $316.81 | $4.8M | 38,650 | Jan 9, 2024 |
| Jan 8, 2024 | KRTX Karuna Therapeutics, Inc. | MOption exercise Option (right to buy)derivative10b5-1 | -2,500 | $0.00 | $0 | 9,677 | Jan 9, 2024 |
| Jan 8, 2024 | KRTX Karuna Therapeutics, Inc. | MOption exercise Option (right to buy)derivative10b5-1 | -5,304 | $0.00 | $0 | 16,046 | Jan 9, 2024 |
| Jan 8, 2024 | KRTX Karuna Therapeutics, Inc. | MOption exercise Option (right to buy)derivative10b5-1 | -9,696 | $0.00 | $0 | 44,604 | Jan 9, 2024 |
| Dec 8, 2023 | KRTX Karuna Therapeutics, Inc. | MOption exercise Common Stock10b5-1 | +2,500 | $5.45 | $14k | 36,150 | Dec 12, 2023 |
| Dec 8, 2023 | KRTX Karuna Therapeutics, Inc. | MOption exercise Common Stock10b5-1 | +10,000 | $131.64 | $1.3M | 46,150 | Dec 12, 2023 |
| Dec 8, 2023 | KRTX Karuna Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -1,565 | $200.11 | $313k | 44,585 | Dec 12, 2023 |
| Dec 8, 2023 | KRTX Karuna Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -2,116 | $201.73 | $427k | 42,469 | Dec 12, 2023 |
| Dec 8, 2023 | KRTX Karuna Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -3,969 | $202.74 | $805k | 38,500 | Dec 12, 2023 |
| Dec 8, 2023 | KRTX Karuna Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -2,251 | $203.80 | $459k | 36,249 | Dec 12, 2023 |
| Dec 8, 2023 | KRTX Karuna Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -99 | $204.18 | $20k | 36,150 | Dec 12, 2023 |
| Dec 8, 2023 | KRTX Karuna Therapeutics, Inc. | MOption exercise Option (right to buy)derivative10b5-1 | -2,500 | $0.00 | $0 | 12,177 | Dec 12, 2023 |
| Dec 8, 2023 | KRTX Karuna Therapeutics, Inc. | MOption exercise Option (right to buy)derivative10b5-1 | -10,000 | $0.00 | $0 | 21,350 | Dec 12, 2023 |
| Nov 8, 2023 | KRTX Karuna Therapeutics, Inc. | MOption exercise Common Stock10b5-1 | +2,500 | $5.45 | $14k | 33,650 | Nov 13, 2023 |
| Nov 8, 2023 | KRTX Karuna Therapeutics, Inc. | MOption exercise Common Stock10b5-1 | +5,000 | $131.64 | $658k | 38,650 | Nov 13, 2023 |
| Nov 8, 2023 | KRTX Karuna Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -1,281 | $174.11 | $223k | 37,369 | Nov 13, 2023 |
| Nov 8, 2023 | KRTX Karuna Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -401 | $175.69 | $70k | 36,968 | Nov 13, 2023 |
| Nov 8, 2023 | KRTX Karuna Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -265 | $177.14 | $47k | 36,703 | Nov 13, 2023 |
Questions about Stephen K. Brannan
Answered from the filings on this page, as of the latest one.
Is Stephen K. Brannan buying or selling?
In the last 12 months Stephen K. Brannan reported 1 open-market buy worth $2,030 and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $2,030 of SER on Jul 7, 2026. Grants, option exercises and tax withholding are not counted.
How did Stephen K. Brannan's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Stephen K. Brannan has 0.
Where does Stephen K. Brannan file Form 4?
Stephen K. Brannan has filed Form 4 at KRTX (Karuna Therapeutics, Inc.) as Chief Medical Officer; SER (Serina Therapeutics, 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.