This cluster is too small to drive stock price action or signal management sentiment. No action warranted; monitor Form 4 filings in the run-up to the next quarterly earnings for any material changes in C-suite ownership patterns.
Price Chart
Executive Summary
Two Alkermes executives — the EVP/CLO and the EVP R&D/CMO — sold a combined $537K in open-market shares near $52-54, representing ~0.006% of the $9.1B market cap. The CMO's sales coincided with option exercises at a $19.34 strike, consistent with routine post-vesting diversification rather than a bearish signal. At this proportionality, the cluster is trivial relative to company size.
Key Financial Metrics
Key Facts
- EVP/CLO Gaffin sold 2,034 shares at $54.03, proceeds ~$110K on market
- EVP R&D/CMO Hopkinson sold 9,000 open-market shares total at $51.46-$52.13, proceeds ~$464K
- CMO Hopkinson simultaneously exercised 10,000 derivative shares at $19.34 strike ($96.7K cost basis)
- Total open-market sales: $537K, or ~0.006% of $9.1B market cap
- Insider selling cluster is far below the 0.1% materiality threshold
- CMO's exercise-and-sell pattern indicates routine vesting-related liquidity, not a bearish view
Financial Impact
Total insider open-market sales of $537K represent ~0.006% of Alkermes' $9.1B market capitalization — negligible in dollar and relative terms
Risk Factors
- No material risk identified from this cluster — sales are routine and trivial in size
- If a surprise 8-K filing follows with negative news, the timing of this diversified sale could attract scrutiny, but the dollar amounts are far too small to suggest informed selling
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-ALKS-1783408670002 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 16, 2026 16d ago | 8-K | $46.07 $42.13 | ▼ −8.55% | ▼ −11.12% | $41.75 (−9.38%) |
Sep 3, 2026 28d ago | Insider Cluster | $46.10 $45.83 | ▼ −0.59% | ▲ +0.62% | $41.75 (−9.44%) |
Aug 3, 2026 8w ago | Insider Cluster | $49.67 $49.21 | ▲ +0.93% | ▲ +0.83% | $41.75 (+15.95%) |
Aug 3, 2026 8w ago | Insider Cluster | $49.67 $49.21 | ▼ −0.93% | ▼ −0.83% | $41.75 (−15.95%) |
Aug 3, 2026 8w ago | Insider Cluster | $49.67 $49.21 | ▼ −0.93% | ▼ −0.83% | $41.75 (−15.95%) |
Jul 28, 2026 9w ago | 8-K | $50.50 $49.53 | ▲ +1.92% | ▲ +4.19% | $41.75 (+17.33%) |
Jul 8, 2026 12w ago | 8-K | $54.29 $51.60 | ▼ −4.95% | ▼ −5.82% | $41.75 (−23.10%) |
Jul 6, 2026 12w ago | Insider Cluster | $55.14 $51.94 | ▼ −5.80% | ▼ −6.29% | $41.75 (−24.28%) |
Jun 4, 2026 17w ago | Insider Cluster | $42.80 $44.28 | ▲ +3.46% | ▲ +2.89% | $41.75 (−2.45%) |
Jun 1, 2026 17w ago | Insider Cluster | $41.19 $44.29 | ▲ +7.53% | ▲ +10.50% | $41.75 (+1.37%) |
US Market Status
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