Stephen K. Brannan is Chief Medical Officer at Karuna Therapeutics, Inc. (KRTX). They have made 24 open-market trades across 2 companies since 2020, most recently 2026-07-07.
CIK 0001777631
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
1 open-market purchase totalling $2K since 2026, against 23 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| KRTX | 6,487 | $2.1M |
| SER | 1,000 | $2K |
| Total | $2.1M |
Shares reported on the most recent Form 4, priced at the 2026-07-09 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| SER | BUY | 2026-07-07 | 2026-07-09 | $2.03 | $2K | -1.0% | +21.9% | -1.9% |
| KRTX | SELL · 10b5-1 | 2024-03-08 | 2024-03-11 | $318.34 | $1.6M | N/A | N/A | N/A |
| KRTX | SELL · 10b5-1 | 2024-02-08 | 2024-02-12 | $316.13 | $3.2M | +0.8% | +1.4% | N/A |
| KRTX | SELL · 10b5-1 | 2024-01-08 | 2024-01-09 | $316.81 | $4.8M | -0.8% | -0.5% | N/A |
| KRTX | SELL · 10b5-1 | 2023-12-08 | 2023-12-12 | $202.36 | $4.0M | +48.0% | +47.4% | +48.6% |
| KRTX | SELL · 10b5-1 | 2023-11-08 | 2023-11-13 | $177.87 | $1.7M | +7.1% | +22.4% | +78.9% |
| KRTX | SELL · 10b5-1 | 2023-10-09 | 2023-10-10 | $173.24 | $1.7M | -5.2% | -3.9% | +80.0% |
| KRTX | SELL · 10b5-1 | 2023-09-08 | 2023-09-11 | $184.03 | $1.8M | -9.2% | -3.1% | +10.0% |
| KRTX | SELL · 10b5-1 | 2023-08-08 | 2023-08-10 | $180.24 | $1.6M | -3.5% | +2.2% | -3.8% |
| KRTX | SELL · 10b5-1 | 2023-04-10 | 2023-04-12 | $176.88 | $884K | +13.4% | +27.9% | +17.1% |
| KRTX | SELL | 2023-03-09 | 2023-03-09 | $189.51 | $948K | -13.5% | -3.7% | +24.4% |
| KRTX | SELL | 2023-02-09 | 2023-02-13 | $192.37 | $962K | +3.5% | -2.1% | +20.7% |
| KRTX | SELL | 2023-01-09 | 2023-01-09 | $197.52 | $2.0M | +1.4% | +1.4% | -6.1% |
| KRTX | SELL | 2022-12-09 | 2022-12-12 | $200.76 | $2.0M | -5.8% | -9.0% | -14.0% |
| KRTX | SELL | 2022-11-09 | 2022-11-10 | $216.00 | $1.1M | +2.1% | -7.3% | -14.6% |
| KRTX | SELL | 2022-10-10 | 2022-10-12 | $207.51 | $1.0M | +4.6% | +14.3% | -6.6% |
| KRTX | SELL | 2022-09-09 | 2022-09-12 | $243.46 | $1.2M | -6.0% | -16.6% | -15.8% |
| KRTX | SELL | 2022-08-09 | 2022-08-11 | $228.08 | $11.4M | +2.3% | -2.9% | -18.5% |
| KRTX | SELL | 2022-07-11 | 2022-07-11 | $133.29 | $4.0M | +2.0% | +100.9% | +59.7% |
| KRTX | SELL | 2022-06-09 | 2022-06-09 | $110.90 | $555K | +7.3% | +24.3% | +142.1% |
| KRTX | SELL | 2022-05-09 | 2022-05-09 | $104.10 | $521K | +5.2% | +12.3% | +143.8% |
| KRTX | SELL | 2022-04-01 | 2022-04-04 | $128.45 | $2.0M | +1.7% | -9.7% | -2.5% |
| KRTX | SELL | 2022-03-01 | 2022-03-02 | $107.38 | $1.7M | -5.8% | +23.9% | -2.0% |
| KRTX | SELL | 2022-02-01 | 2022-02-02 | $110.05 | $1.7M | -2.3% | -8.2% | +8.5% |
| KRTX | SELL | 2022-01-03 | 2022-01-03 | $130.79 | $2.0M | -7.2% | -17.0% | +3.4% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.