These sales are routine and non-informative — both insiders sold in conjunction with option exercises, a pattern consistent with tax withholding or diversification. The dollar amount is negligible relative to market cap. No action warranted; monitor for any change in pattern (e.g., C-suite open-market selling without option exercise) or a material corporate event that could alter the read.
Price Chart
Executive Summary
Two Alkermes insiders — the Chief Medical Officer and the Interim Principal Accounting Officer — sold a combined $1.06M in open-market sales over a 4-day window, with the CMO also exercising stock options. The total sales represent ~0.015% of the $7.0B market cap, well below the 0.1% materiality threshold, and the CMO's sale is paired with a same-day option exercise, suggesting a tax- or liquidity-driven transaction rather than a bearish signal. No material corporate event (earnings, guidance, M&A) accompanies these routine sales.
Key Financial Metrics
Key Facts
- Total insider sales of $1.06M represent ~0.015% of Alkermes' $7.0B market cap — trivial by proportionality standards.
- CMO Hopkinson sold 9,000 shares ($375K) on June 1, simultaneously exercising 10,000 derivative shares (5,000 at $0, 5,000 at $19.34) — a classic cashless exercise pattern.
- Interim PAO Parisi sold 16,217 shares ($687K) on May 29, paired with exercise of 6,784 derivative shares — also consistent with a cashless exercise.
- No open-market purchases were made by any insider in the cluster window.
- Prior 30-day insider activity was limited to $1.1M in sales — no unusual acceleration or change in pattern.
Financial Impact
Total insider sales of $1.06M, or ~0.015% of market cap — immaterial.
Risk Factors
- If a material adverse event (e.g., clinical trial failure, FDA setback) emerges in the coming weeks, these sales could be viewed as opportunistic in hindsight.
- The CMO's sale is the first disclosed trade in the filing window — a larger cluster of C-suite open-market sales without option exercises would be more concerning.
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-1780356434266 |
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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