The purchase by a 10% owner is a positive signal, but the dollar amount is small relative to market cap. Monitor for additional insider buying or company catalysts (e.g., pipeline updates, partnerships) that could drive further conviction. The strong historical win rate (83% at T+20) on prior ARTV reports supports a bullish tilt, but the modest size limits conviction.
Price Chart
Executive Summary
RA Capital Management, L.P., a director and 10% owner of Artiva Biotherapeutics, purchased 15,100 shares at $8.97 for a total of $135K on July 10, 2026. This is a standalone conviction buy by a major insider, signaling confidence in the company's prospects at current valuation.
Key Financial Metrics
Key Facts
- RA Capital Management (Director, 10% Owner) bought 15,100 shares at $8.97 for $135K on July 10, 2026.
- Total purchase value of $135K represents approximately 0.06% of Artiva's $221M market cap.
- Recent insider activity shows 6 buys totaling $1.7M in the last 30 days, indicating sustained insider confidence.
- Analyst consensus is 92% bullish (4 Strong Buy, 7 Buy, 1 Hold).
Financial Impact
Insider purchase of $135K, representing 0.06% of market cap.
Risk Factors
- The purchase amount ($135K) is small relative to market cap (0.06%), limiting its signaling power.
- Biotech sector volatility and binary pipeline events could overshadow insider buying.
- RA Capital may be averaging into a position rather than signaling a near-term catalyst.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| INSIDER-BUY Data (Synthetic) | 0001231919-26-000764 |
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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