Insider sales are well below the materiality threshold for a $90.7B company — no bearish signal. Monitor if this pattern scales (e.g., CEO/CFO begin open-market selling) but routine C-suite sales and derivative exercises are not actionable. No trade recommendation.
Price Chart
Executive Summary
Two C-suite insiders at McKesson sold $4.52M in open-market stock on May 26, 2026, at ~$761/share. While the CEO and CFO had routine non-cash derivative exercises and tax-withholding transactions on May 23, the open-market sales by the Chief Strategy Officer and Chief Legal Officer represent the first material cash sales in the cluster. At $90.7B market cap, the $4.52M is ~0.005% — far below the 0.1% proportionality threshold — and per the asymmetric insider-sale literature, cluster sales are not predictive even when multiple insiders sell. The activity is too small relative to company size to carry informational content, and the derivative exercises/tax withholdings are non-cash and routine.
Key Financial Metrics
Key Facts
- Two EVPs sold a combined $4.52M in open-market stock on 2026-05-26 at ~$761/share.
- Total cluster sales are ~0.005% of McKesson's $90.7B market cap — trivial from a proportionality perspective.
- CEO Brian Tyler and CFO Britt Vitalone had only non-cash derivative exercises and tax-withholding dispositions on 2026-05-23; no open-market sales by top C-suite.
- Per academic literature, cluster insider sales are not predictive (Alldredge 2019) — many are liquidity-driven or vesting coincidences.
- McKesson has 87% analyst bullish rating (12 Buy, 8 Strong Buy) — no signs of fundamental distress.
Financial Impact
$4.52M in open-market sales at ~$761/share, ~0.005% of market cap
Risk Factors
- If insider selling accelerates in coming weeks (direction change), could signal leadership caution ahead of earnings.
- Historical calibration shows past neutral calls on MCK at T+20 averaged -5.4% — but those were unrelated filings; insider cluster patterns have not been tested on this ticker.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-MCK-1779905685522 |
Track record builds as more directional reports settle.
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Aug 28, 2026 4w ago | 8-K | $885.32 $851.02 | ▼ −3.87% | ▼ −3.93% | $898.82 (+1.52%) |
Jul 1, 2026 13w ago | 8-K | $768.06 $888.56 | ▲ +15.69% | ▲ +17.87% | $898.82 (+17.02%) |
Jun 30, 2026 13w ago | DEFA14A | $768.06 $888.56 | ▲ +15.69% | ▲ +17.87% | $898.82 (+17.02%) |
Jun 12, 2026 15w ago | DEFA14A | $779.78 $812.28 | ▲ +4.17% | ▲ +4.92% | $898.82 (+15.27%) |
Jun 12, 2026 16w ago | 8-K | $784.05 $805.96 | ▲ +2.79% | ▲ +1.01% | $898.82 (+14.64%) |
Jun 8, 2026 16w ago | Insider Cluster | $766.64 $784.23 | ▲ +2.29% | ▲ +0.66% | $898.82 (+17.24%) |
Jun 3, 2026 17w ago | Insider Cluster | $739.40 $768.06 | ▲ +3.88% | ▲ +5.00% | $898.82 (+21.56%) |
Jun 2, 2026 17w ago | Insider Cluster | $736.15 $768.06 | ▲ +4.34% | ▲ +6.15% | $898.82 (+22.10%) |
May 27, 2026 18w ago | Insider Cluster | $756.13 $766.55 | ▲ +1.38% | ▲ +3.67% | $898.82 (+18.87%) |
May 27, 2026 18w ago | Insider Cluster | $756.13 $766.55 | ▲ +1.38% | ▲ +3.67% | $898.82 (+18.87%) |
US Market Status
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