Mirum Pharmaceuticals, Inc.

1. 01

   Rose 11.4% on 4 Nov 2026

   The 4 Nov 2026 gain of 11.4% was 5.3× its average daily move of 2.2% over the past year, and its largest one-day gain since 7 Aug 2025.

   Daily closes, split-adjusted · as of 4 Nov 2026

2. 02

   Ahead of SPY and its sector fund XLV over 1 year

   1 month: +22.4% (SPY −1.6%, XLV +13.5%). 3 months: −8.3% (SPY −0.4%, XLV +15.5%). 1 year: +36.6% (SPY +13.6%, XLV +30.7%). Price change to the 4 Nov 2026 close; dividends excluded.

   Daily closes, split-adjusted: MIRM, SPY and XLV · as of 4 Nov 2026

3. 03

   7.3 days to cover short interest

   6.7M shares were sold short at the 15 Oct 2026 settlement, 10.3% of the 64.9M shares outstanding; covering them would take 7.3 days of average volume. Short interest is reported twice a month, on a lag.

   Exchange short-interest filing · as of 15 Oct 2026

4. 04

   Above its 50-day average, below its 200-day

   The 4 Nov 2026 close of $96.97 was 8.3% above its 50-day average ($89.51) and 1.6% below its 200-day average ($98.54). It has closed below the 200-day for 34 sessions, since 18 Sep 2026. The 50-day average crossed below the 200-day on 2 Oct 2026, 23 sessions ago.

   Daily closes, split-adjusted; 50- and 200-session simple averages · as of 4 Nov 2026

5. 05

   51% of the way up its 52-week range

   Closed at $96.97 on 4 Nov 2026: 25.4% below the 52-week high of $130.00 (9 Jul 2026) and 53.4% above the low of $63.23 (15 Dec 2025).

   Daily price bars, split-adjusted · as of 4 Nov 2026

At the 4 Nov 2026 close