CEO selling following an earnings miss and pipeline delay is a cautionary signal, but the dollar amount is small relative to market cap. Monitor for additional insider sales in the next 2 weeks; if C-suite selling continues, it would reinforce the bearish read. The volixibat Phase 3 requirement and timeline — not insider trades — remain the primary catalyst for the stock.
Price Chart
Executive Summary
CEO Christopher Peetz executed a cluster of open-market sales totaling ~$1.98M, including a single-day sale of 11,683 shares at ~$1.15M, alongside derivative exercises. The sales follow a Q2 earnings miss and volixibat pipeline delay reported 6 days prior. While the dollar amount is modest relative to Mirum's $6.4B market cap (0.03%), the CEO's status amplifies the signal — particularly given the negative earnings surprise and pipeline setback disclosed in the same window.
Key Financial Metrics
Key Facts
- CEO Peetz sold ~$1.98M in open-market sales on 2026-08-10, the largest being 11,683 shares at ~$1.15M
- Total cluster value of ~$2.32M (including Jolanda Howe's $194K sale) represents ~0.04% of Mirum's $6.4B market cap
- Sales occurred 6 days after Q2 2026 earnings (GAAP EPS -$1.06 vs -$0.75 consensus) and a volixibat NDA delay to H1 2027
- Peetz also exercised 40,000 derivative shares (20,000 at $2.936; 20,000 at $0) — these are non-cash events
- Prior insider activity (30d): 4 sells totaling $2.2M at higher prices, suggesting a selling pattern
Financial Impact
CEO open-market sales of ~$1.98M; cluster total ~$2.32M, 0.04% of market cap
Risk Factors
- Further insider sales could signal deteriorating management confidence
- Q2 EPS miss and volixibat delay already pressured sentiment; additional negative news could compound
- CEO derivative exercises (40,000 shares) will add to share count, though at minimal cost basis
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-MIRM-1786485690367 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Aug 19, 2026 6w ago | Insider Cluster | $102.24 $98.82 | ▼ −3.35% | ▼ −1.39% | $82.93 (−18.89%) |
Aug 12, 2026 7w ago | Insider Cluster | $98.97 $100.61 | ▲ +1.66% | ▲ +3.55% | $82.93 (−16.21%) |
Aug 11, 2026 7w ago | Insider Cluster | $98.97 $100.61 | ▼ −1.66% | ▼ −3.55% | $82.93 (+16.21%) |
Aug 10, 2026 7w ago | 144 | $98.23 $98.30 | ▲ +0.07% | ▲ +1.13% | $82.93 (−15.58%) |
Aug 5, 2026 8w ago | 8-K | $94.12 $100.63 | ▲ +6.92% | ▲ +6.32% | $82.93 (−11.88%) |
Jul 8, 2026 12w ago | Insider Cluster | $128.57 $105.79 | ▼ −17.72% | ▼ −20.99% | $82.93 (−35.50%) |
Jun 11, 2026 16w ago | Institutional Cluster | $99.54 $127.70 | ▲ +28.29% | ▲ +26.40% | $82.93 (−16.69%) |
Jun 10, 2026 16w ago | Insider Cluster | $94.00 $127.70 | ▲ +35.85% | ▲ +32.23% | $82.93 (−11.78%) |
Jun 2, 2026 17w ago | Insider Cluster | $91.84 $125.59 | ▲ +36.76% | ▲ +37.76% | $82.93 (−9.70%) |
Jun 1, 2026 17w ago | 144 | $92.17 $120.46 | ▲ +30.69% | ▲ +32.26% | $82.93 (−10.02%) |
US Market Status
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