BJERKHOLT ERIC sold $978K of MIRM
BJERKHOLT ERIC (CHIEF FINANCIAL OFFICER) sold 9,943 shares of Mirum Pharmaceuticals, Inc. (MIRM) at $98.37 ($0.98M total) on 2026-09-14.
How this was made
The 30-second read
Why it matters
The CFO's sale reduces insider ownership, which can be interpreted as a negative signal, but the size is relatively small.
Market read
A modest insider sale that may cause slight short‑term price pressure.
What to watch
The CFO may have needed liquidity for personal reasons; no direct link to company performance.
Background
Form 4 filings disclose insider transactions and are considered primary sources of new information.
Ticker impact
CFO Eric Bjerkholt sold 9,943 shares for $978,092, reducing his stake to 44,745 shares.
Potential modest dip of 1‑2% in the near term.
A $978k sale by a senior officer is material for a micro‑cap biotech, but the amount is modest relative to market cap.
Market effects
May raise concerns among investors in the biotech sector about insider sentiment.
Limited to U.S. markets where MIRM trades.
Minimal global impact.
Counterpoint
The sale could be a routine portfolio rebalancing unrelated to company fundamentals.
Key entities
- CompanyMirum Pharmaceuticals, Inc.
Biotech firm listed on NASDAQ under ticker MIRM.
- ExecutiveEric Bjerkholt
Chief Financial Officer of Mirum Pharmaceuticals.

