STE STERIS plc
Price Chart
Executive Summary
CEO Daniel Carestio and Director Richard Breeden sold a combined $966K in open-market STE shares over a 5-day window (May 28–June 4), while a separate cluster filing shows Carestio also sold an additional $291K on June 5. Tax-withholding and equity-grant transactions by multiple executives (Burton, Fraser, Kohler, Zangerle, Madsen, Tamaro, Boulud) are non-cash events with no economic signal. The open-market sales total ~0.005% of STE's $20.7B market cap — well below the 0.1% threshold for materiality — and CEO selling is not accompanied by broad C-suite or director selling (only 2 insiders). Per academic literature, insider sales clusters have weak predictive power, particularly at this trivial size relative to market cap, and the calibration data shows prior neutral/mixed calls on STE have underperformed at T+20 (avg alpha -5.76%). The sales are likely routine diversification rather than an informed negative signal.
Key Financial Metrics
Actionable Insight
No actionable bearish signal from this cluster. CEO selling at ~0.006% market cap is routine diversification. Monitor the next quarterly filing (Form 4/10-Q) for any acceleration or broadening of C-suite sales volume, but no near-term catalyst is implied. The broad equity grants on June 2 suggest normal compensation cycles, not distress.
Key Facts
- CEO Daniel Carestio sold $947K open-market (June 4-5, $212-$215 range), plus $291K on June 5 per separate filing
- Director Richard Breeden sold $310K open-market on June 2 at $209.51
- Total open-market cash-out: ~$1.26M across 3 insiders; ~0.006% of $20.7B market cap
- Multiple executives (CFO, SVP, etc.) had non-cash tax-withholding and equity-grant transactions — no economic signal
- Prior STE calls averaged T+20 alpha of -5.76% vs SPY (n=3 settled, 33% win rate)
Financial Impact
Total open-market sales of ~$1.26M against $20.7B market cap; no material economic impact or change in ownership structure
Risk Factors
- CEO continued selling in subsequent periods could signal waning conviction; watch next 10-Q for revenue/earnings trajectory
- Sector headwinds in surgical supplies/margin pressure could emerge without insider trading as a leading indicator
Market Snapshot
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-STE-1780950733972 |
Track record builds as more directional reports settle.
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
|
Jun 11, 2026
1d ago
|
DEFA14A
| $207.25 awaiting T+5 | awaiting T+5 | — | $207.56 (+0.15%) |
|
Jun 8, 2026
4d ago
|
Insider Cluster
| $210.07 awaiting T+5 | awaiting T+5 | — | $207.56 (−1.19%) |
|
Jun 5, 2026
7d ago
|
144
| $212.00 awaiting T+5 | awaiting T+5 | — | $207.56 (−2.09%) |
|
Jun 4, 2026
8d ago
|
144
| $212.00 awaiting T+5 | awaiting T+5 | — | $207.56 (−2.09%) |
|
May 11, 2026
4w ago
|
8-K
| $210.23 $212.87 | ▼ −1.26% | ▼ −1.18% | $207.56 (+1.27%) |
|
May 11, 2026
4w ago
|
Press Release
| $210.23 $212.87 | ▲ +1.26% | ▲ +1.18% | $207.56 (−1.27%) |
|
May 7, 2026
5w ago
|
8-K
| $207.24 $215.98 | ▲ +4.22% | ▲ +2.75% | $207.56 (+0.15%) |
|
Apr 21, 2026
7w ago
|
Press Release
| $222.61 $212.33 | ▼ −4.62% | ▼ −4.67% | $207.56 (−6.76%) |
US Market Status
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