This is a routine, immaterial insider sale cluster. The dollar amount is too small to warrant any trading action. Monitor for any upcoming material filings (earnings, pipeline updates) that could provide context, but these sales alone carry no signal.
Price Chart
Executive Summary
Two C-suite insiders at Ultragenyx (CFO and EVP/Chief Legal Officer) sold a combined $164K in open-market sales on August 3, 2026, at $24.92 per share. The total value is only ~0.007% of the $2.5B market cap, making this a trivial cluster by proportionality standards. The sales are not clustered with any recent material corporate event in the provided context, and the dollar amount is well below the threshold for signaling concern — this is routine portfolio diversification or tax planning, not informed selling.
Key Financial Metrics
Key Facts
- CFO Howard Horn sold 4,696 shares for $117K on 2026-08-03
- EVP/CLO Karah Parschauer sold 1,900 shares for $47K on 2026-08-03
- Total cluster value of $164K represents ~0.007% of $2.5B market cap
- Both sales were open-market transactions at $24.92 per share
- No recent earnings, guidance, or material corporate event in the provided context to connect to these sales
Financial Impact
Trivial — $164K total sales, ~0.007% of market cap
Risk Factors
- No material risk identified from this filing
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-RARE-1785871541587 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 2, 2026 4w ago | 8-K | $14.85 $15.22 | ▼ −2.49% | ▼ −3.68% | $15.22 (−2.49%) |
Sep 1, 2026 4w ago | Press Release | $26.53 $15.03 | ▼ −43.35% | ▼ −43.02% | $15.22 (−42.63%) |
Aug 11, 2026 7w ago | 8-K | $26.80 $14.31 | ▼ −46.60% | ▼ −45.55% | $15.22 (−43.21%) |
Aug 4, 2026 8w ago | 8-K | $24.93 $26.53 | ▲ +6.42% | ▲ +7.02% | $15.22 (−38.95%) |
Aug 4, 2026 8w ago | Insider Cluster | $25.81 $25.81 | · 0.00% | ▲ +1.24% | $15.22 (−41.03%) |
Jun 15, 2026 15w ago | Insider Cluster | $24.85 $32.03 | ▲ +28.89% | ▲ +28.69% | $15.22 (−38.75%) |
Jun 11, 2026 16w ago | Institutional Cluster | $23.98 $34.61 | ▲ +44.33% | ▲ +42.44% | $15.22 (−36.53%) |
May 5, 2026 21w ago | Press Release | $25.93 $22.41 | ▲ +13.57% | ▲ +16.36% | $15.22 (+41.30%) |
May 1, 2026 22w ago | Insider Cluster | $24.77 $22.85 | ▼ −7.75% | ▼ −13.04% | $15.22 (−38.55%) |
Apr 2, 2026 26w ago | 8-K | $22.45 $24.69 | ▲ +9.98% | ▲ +0.10% | $15.22 (−32.20%) |
US Market Status
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