The C-suite selling cluster, while small in dollar terms, is a bearish signal given the breadth of executive participation. Monitor for any upcoming negative catalysts (data readouts, financing, or guidance changes) that may have prompted the sales. The 92% analyst bullishness and strong historical insider buy signals create a contrarian setup — if the stock breaks below $10 support, the selling could accelerate.
Price Chart
Executive Summary
A cluster of insider selling at Artiva Biotherapeutics, totaling $477K in open-market sales by the CEO, COO/CLO, CTO, and CMO over a 5-day window. The CEO's $256K sale on Sept 8 is the largest, and the selling is concentrated among top C-suite executives. While the dollar amount is modest relative to the $532M market cap (~0.09%), the breadth of C-suite participation is notable. Historical performance on ARTV insider buy signals has been strong, but this is a sell cluster, which carries weaker predictive power per academic literature. The cross-filing context shows the CEO also sold $256K in a separate transaction on the same day, reinforcing the pattern. The stock trades near $11, with 92% analyst bullishness, creating a tension between insider behavior and street sentiment.
Key Financial Metrics
Key Facts
- CEO Fred Aslan sold 23,429 shares for $256K on Sept 8
- COO/CLO Jennifer Bush sold 8,400 shares for $94K on Sept 3
- CTO Christopher Horan sold 10,400 shares for $116K on Sept 3
- CMO Subhashis Banerjee sold 1,100 shares for $12K on Sept 3
- Total insider selling of $477K represents ~0.09% of $532M market cap
- All four selling insiders are C-suite executives (CEO, COO/CLO, CTO, CMO)
- No insider purchases were reported in the cluster window
- Six directors received non-cash stock grants of 13,750 shares each on Sept 8
Financial Impact
Total insider selling of $477K, or ~0.09% of market cap, concentrated among four C-suite executives
Risk Factors
- Insider selling may be liquidity-driven (10b5-1 plans, tax planning) rather than informational
- Small dollar amount relative to market cap limits materiality
- Strong analyst consensus and historical buy signals could mean selling is opportunistic, not fundamental
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-ARTV-1789030940849 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 11, 2026 20d ago | 8-K | $10.14 $8.91 | ▼ −12.13% | ▼ −11.67% | $6.86 (−32.35%) |
Sep 9, 2026 23d ago | Insider Cluster | $10.79 $10.42 | ▼ −3.43% | ▼ −2.83% | $6.86 (−36.42%) |
Sep 9, 2026 23d ago | Insider Cluster | $10.79 $10.42 | ▼ −3.43% | ▼ −2.83% | $6.86 (−36.42%) |
Sep 9, 2026 23d ago | Insider Cluster | $10.79 $10.42 | ▼ −3.43% | ▼ −2.83% | $6.86 (−36.42%) |
Sep 9, 2026 23d ago | Insider Cluster | $10.79 $10.42 | ▼ −3.43% | ▼ −2.83% | $6.86 (−36.42%) |
Sep 9, 2026 23d ago | Insider Cluster | $10.79 $10.42 | ▲ +3.43% | ▲ +2.83% | $6.86 (+36.42%) |
Sep 4, 2026 28d ago | Insider Cluster | $11.19 $10.88 | ▼ −2.77% | ▼ −2.22% | $6.86 (−38.70%) |
Aug 15, 2026 6w ago | Institutional Cluster | $11.74 $11.68 | ▼ −0.51% | ▲ +0.16% | $6.86 (−41.57%) |
Jul 31, 2026 8w ago | Insider Buy | $10.76 $11.07 | ▲ +2.88% | ▲ +1.08% | $6.86 (−36.25%) |
Jul 28, 2026 9w ago | Insider Buy | $10.53 $10.02 | ▼ −4.84% | ▼ −3.30% | $6.86 (−34.85%) |
US Market Status
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