Insider · CIK 0001547959
Saira Ramasastry
director
Files at VIR (Vir Biotechnology, Inc.), MIRM (Mirum Pharmaceuticals, Inc.), DAWN (Day One Biopharmaceuticals, Inc.). First filing Jun 4, 2025, latest Dec 23, 2025.
Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 3
$0 bought, $917k sold
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
MIRM: Mirum Pharmaceuticals, Inc.
MIRMOct 9, 2026 · close 86.01
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 |
|---|---|---|---|---|---|
| 24Weak | Mirum Pharmaceuticals, Inc. | $400k 5,000 shares | -100% | +111% from low0% from high | |
| 19Weak | Mirum Pharmaceuticals, Inc. | $139k 2,000 shares | -100% | +83% from low-10% from high | |
| 44Moderate | Mirum Pharmaceuticals, Inc. | $378k 8,203 shares | -144% | +21% from low-14% from high |
Transactions
Every row this insider has filed, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Dec 22, 2025 | MIRM Mirum Pharmaceuticals, Inc. | MOption exercise Common Stock10b5-1 | +5,000 | $23.51 | $118k | 5,000 | Dec 23, 2025 |
| Dec 22, 2025 | MIRM Mirum Pharmaceuticals, Inc. | SOpen-market sale Common Stock10b5-1 | -5,000 | $80.00 | $400k | 0 | Dec 23, 2025 |
| Dec 22, 2025 | MIRM Mirum Pharmaceuticals, Inc. | MOption exercise Stock Option (right to buy)derivative10b5-1 | -5,000 | $0.00 | $0 | 10,000 | Dec 23, 2025 |
| Dec 18, 2025 | MIRM Mirum Pharmaceuticals, Inc. | MOption exercise Common Stock10b5-1 | +2,000 | $23.51 | $47k | 2,000 | Dec 19, 2025 |
| Dec 18, 2025 | MIRM Mirum Pharmaceuticals, Inc. | SOpen-market sale Common Stock10b5-1 | -1,000 | $69.46 | $69k | 1,000 | Dec 19, 2025 |
| Dec 18, 2025 | MIRM Mirum Pharmaceuticals, Inc. | SOpen-market sale Common Stock10b5-1 | -1,000 | $70.00 | $70k | 0 | Dec 19, 2025 |
| Dec 18, 2025 | MIRM Mirum Pharmaceuticals, Inc. | MOption exercise Stock Option (right to buy)derivative10b5-1 | -2,000 | $0.00 | $0 | 15,000 | Dec 19, 2025 |
| Nov 6, 2025 | DAWN Day One Biopharmaceuticals, Inc. | DDisposition to issuer Stock Option (right to buy Common Stock)derivative | -40,000 | $0.00 | $0 | 0 | Nov 7, 2025 |
| Nov 6, 2025 | DAWN Day One Biopharmaceuticals, Inc. | AGrant or award Stock Option (right to buy Common Stock)derivative | +40,000 | $0.00 | $0 | 40,000 | Nov 7, 2025 |
| Nov 6, 2025 | DAWN Day One Biopharmaceuticals, Inc. | DDisposition to issuer Stock Option (right to buy Common Stock)derivative | -47,581 | $0.00 | $0 | 0 | Nov 7, 2025 |
| Nov 6, 2025 | DAWN Day One Biopharmaceuticals, Inc. | AGrant or award Stock Option (right to buy Common Stock)derivative | +47,581 | $0.00 | $0 | 47,581 | Nov 7, 2025 |
| Nov 6, 2025 | DAWN Day One Biopharmaceuticals, Inc. | DDisposition to issuer Stock Option (right to buy Common Stock)derivative | -28,700 | $0.00 | $0 | 0 | Nov 7, 2025 |
| Nov 6, 2025 | DAWN Day One Biopharmaceuticals, Inc. | AGrant or award Stock Option (right to buy Common Stock)derivative | +28,700 | $0.00 | $0 | 28,700 | Nov 7, 2025 |
| Nov 6, 2025 | DAWN Day One Biopharmaceuticals, Inc. | DDisposition to issuer Stock Option (right to buy Common Stock)derivative | -37,500 | $0.00 | $0 | 0 | Nov 7, 2025 |
| Nov 6, 2025 | DAWN Day One Biopharmaceuticals, Inc. | AGrant or award Stock Option (right to buy Common Stock)derivative | +37,500 | $0.00 | $0 | 37,500 | Nov 7, 2025 |
| Nov 6, 2025 | DAWN Day One Biopharmaceuticals, Inc. | DDisposition to issuer Stock Option (right to buy Common Stock)derivative | -32,335 | $0.00 | $0 | 0 | Nov 7, 2025 |
| Nov 6, 2025 | DAWN Day One Biopharmaceuticals, Inc. | AGrant or award Stock Option (right to buy Common Stock)derivative | +32,335 | $0.00 | $0 | 32,335 | Nov 7, 2025 |
| Sep 8, 2025 | MIRM Mirum Pharmaceuticals, Inc. | MOption exercise Common Stock | +17,000 | $23.51 | $400k | 17,000 | Sep 10, 2025 |
| Sep 8, 2025 | MIRM Mirum Pharmaceuticals, Inc. | SOpen-market sale Common Stock | -17,000 | - | - | 0 | Sep 10, 2025 |
| Sep 8, 2025 | MIRM Mirum Pharmaceuticals, Inc. | MOption exercise Stock Option (right to buy)derivative | -17,000 | $0.00 | $0 | 17,000 | Sep 10, 2025 |
| Jun 2, 2025 | DAWN Day One Biopharmaceuticals, Inc. | AGrant or award Stock Option (right to buy Common Stock)derivative | +22,500 | $0.00 | $0 | 22,500 | Jun 4, 2025 |
| Jun 2, 2025 | MIRM Mirum Pharmaceuticals, Inc. | SOpen-market sale Common Stock | -5,703 | $46.20 | $263k | 0 | Jun 4, 2025 |
| Jun 3, 2025 | MIRM Mirum Pharmaceuticals, Inc. | MOption exercise Common Stock | +2,500 | $14.12 | $35k | 2,500 | Jun 4, 2025 |
| Jun 2, 2025 | DAWN Day One Biopharmaceuticals, Inc. | AGrant or award Deferred Restricted Stock Unit (RSU)derivative | +15,000 | $0.00 | $0 | 15,000 | Jun 4, 2025 |
| Jun 3, 2025 | MIRM Mirum Pharmaceuticals, Inc. | SOpen-market sale Common Stock | -2,500 | $45.74 | $114k | 0 | Jun 4, 2025 |
| Jun 3, 2025 | MIRM Mirum Pharmaceuticals, Inc. | MOption exercise Stock Option (right to buy)derivative | -2,500 | $0.00 | $0 | 0 | Jun 4, 2025 |
| May 30, 2025 | VIR Vir Biotechnology, Inc. | AGrant or award Common Stock | +8,000 | $0.00 | $0 | 22,619 | Jun 2, 2025 |
| May 29, 2025 | MIRM Mirum Pharmaceuticals, Inc. | MOption exercise Common Stock | +5,703 | - | - | 5,703 | Jun 2, 2025 |
| May 30, 2025 | VIR Vir Biotechnology, Inc. | AGrant or award Stock Option (Right to Buy)derivative | +16,000 | $0.00 | $0 | 16,000 | Jun 2, 2025 |
| May 29, 2025 | MIRM Mirum Pharmaceuticals, Inc. | MOption exercise Restricted Stock Unitsderivative | -5,703 | $0.00 | $0 | 0 | Jun 2, 2025 |
| May 29, 2025 | MIRM Mirum Pharmaceuticals, Inc. | AGrant or award Stock Option (right to buy)derivative | +6,268 | $0.00 | $0 | 6,268 | Jun 2, 2025 |
| May 29, 2025 | MIRM Mirum Pharmaceuticals, Inc. | AGrant or award Restricted Stock Unitsderivative | +3,977 | $0.00 | $0 | 3,977 | Jun 2, 2025 |
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.