The cluster is too small to drive stock price action on its own, but CFO buying alongside a director signals management's confidence ahead of upcoming catalysts (likely TransCon PTH data or Skytrofa updates). Monitor for additional insider purchases or a material 8-K in the next 2-4 weeks. The historical calibration shows ASND insider-buy signals have underperformed (avg T+20 alpha -7.3%), so treat this as a modest positive signal, not a trade trigger.
Price Chart
Executive Summary
CFO Scott Thomas and Director Jean-Jacques Bienaimé made open-market purchases totaling $67K over a 5-day window. While the dollar amount is trivial relative to ASND's $13.6B market cap (0.0005%), cluster buys — especially involving C-suite — carry asymmetric informational weight per the academic literature. The purchases occurred without any accompanying 10b5-1 pattern, suggesting voluntary conviction.
Key Financial Metrics
Key Facts
- CFO Scott Thomas purchased 350 shares total ($77.7K) across two separate open-market transactions on May 29 and June 2.
- Director Jean-Jacques Bienaimé purchased 200 shares ($44.8K) on May 29.
- Total cluster value of $122.5K is 0.0009% of ASND's $13.6B market cap — well below the 0.1% materiality threshold.
- No 10b5-1 plan or vesting-driven pattern detected; both transactions are voluntary open-market buys.
- ASND has 96% analyst bullish consensus (23 of 24 analysts at Buy/Strong Buy).
Financial Impact
Total insider purchases of $122.5K represent ~0.0009% of market cap — economically trivial in absolute terms.
Risk Factors
- Historical calibration shows ASND insider-buy signals have delivered negative average alpha at T+20 (-7.3% vs SPY).
- Dollar amount is too small to overcome the company's $13.6B market cap — institutional flows dominate.
- No accompanying corporate event (earnings, pipeline update) to contextualize the buying.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-ASND-1780431963004 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 9, 2026 23d ago | Insider Cluster | $260.81 $247.69 | ▼ −5.03% | ▼ −4.37% | $227.23 (−12.88%) |
Aug 31, 2026 4w ago | 6-K | $260.25 $260.81 | ▲ +0.22% | ▲ +0.13% | $227.23 (−12.69%) |
Aug 27, 2026 5w ago | ANALYST-UPGRADE | $249.36 $271.12 | ▲ +8.73% | ▲ +8.46% | $227.23 (−8.87%) |
Aug 19, 2026 6w ago | ANALYST-UPGRADE | $259.62 $250.25 | ▼ −3.61% | ▼ −3.22% | $227.23 (−12.48%) |
Aug 19, 2026 6w ago | Insider Buy | $259.62 $250.25 | ▼ −3.61% | ▼ −3.22% | $227.23 (−12.48%) |
Aug 13, 2026 7w ago | 6-K | $246.23 $254.81 | ▲ +3.48% | ▲ +5.45% | $227.23 (−7.72%) |
Aug 13, 2026 7w ago | Press Release | $246.23 $254.81 | ▲ +3.48% | ▲ +5.45% | $227.23 (−7.72%) |
Aug 6, 2026 8w ago | 6-K | $249.85 $246.23 | ▼ −1.45% | ▼ −2.66% | $227.23 (−9.05%) |
Aug 6, 2026 8w ago | Press Release | $249.85 $246.23 | ▼ −1.45% | ▼ −2.66% | $227.23 (−9.05%) |
Jul 15, 2026 11w ago | 6-K | $259.80 $252.66 | ▼ −2.75% | ▼ −1.08% | $227.23 (−12.54%) |
US Market Status
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