Steven H. Collis is CEO & Chairman +1 at AMERISOURCEBERGEN CORP (ABC). They have made 105 open-market trades across 5 companies since 2006, most recently 2026-05-26.
CIK 0001191508
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
2 open-market purchases totalling $1.1M since 2026, against 103 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| COR | 337,262 | $114.9M |
| ABC | 257,967 | $46.4M |
| ELV | 4,202 | $1.8M |
| BLCO | 42,003 | $692K |
| THOR | 13,908 | $354K |
| Total | $164.2M |
Shares reported on the most recent Form 4, priced at the 2026-05-28 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ELV | BUY | 2026-03-05 | 2026-03-06 | $289.84 | $870K | +2.8% | +5.4% | +42.7% |
| BLCO | BUY | 2026-02-23 | 2026-02-24 | $17.81 | $267K | -9.6% | -15.9% | -16.5% |
| COR | SELL · 10b5-1 | 2025-09-16 | 2025-09-18 | $289.86 | $9.1M | +7.2% | +12.3% | +17.6% |
| COR | SELL · 10b5-1 | 2025-08-19 | 2025-08-20 | $289.98 | $8.5M | -3.0% | -4.6% | +19.0% |
| COR | SELL · 10b5-1 | 2025-07-22 | 2025-07-23 | $292.67 | $8.5M | +0.5% | +0.1% | +12.5% |
| COR | SELL · 10b5-1 | 2025-06-24 | 2025-06-25 | $292.62 | $8.5M | +1.2% | -1.4% | +2.7% |
| COR | SELL · 10b5-1 | 2025-05-20 | 2025-05-21 | $293.84 | $8.6M | +0.2% | +0.9% | +1.3% |
| COR | SELL · 10b5-1 | 2025-04-22 | 2025-04-23 | $281.81 | $8.2M | +2.9% | +3.0% | +3.2% |
| COR | SELL · 10b5-1 | 2025-03-25 | 2025-03-26 | $269.51 | $7.3M | +0.5% | +4.7% | +7.7% |
| COR | SELL · 10b5-1 | 2025-02-27 | 2025-02-28 | $251.08 | $6.8M | +0.2% | +9.7% | +14.7% |
| COR | SELL | 2024-11-25 | 2024-11-26 | $243.98 | $12.2M | -2.4% | -8.1% | -0.9% |
| COR | SELL · 10b5-1 | 2024-11-19 | 2024-11-21 | $242.16 | $10.4M | +0.9% | -7.5% | -0.3% |
| COR | SELL | 2024-10-22 | 2024-10-23 | $235.80 | $10.1M | -0.1% | +4.6% | +4.6% |
| COR | SELL · 10b5-1 | 2024-09-17 | 2024-09-18 | $241.01 | $10.4M | -1.5% | +3.9% | -0.4% |
| COR | SELL · 10b5-1 | 2024-08-20 | 2024-08-21 | $239.13 | $5.1M | +1.5% | -5.0% | +0.4% |
| COR | SELL · 10b5-1 | 2024-07-16 | 2024-07-17 | $222.12 | $4.8M | +1.2% | +6.0% | +3.8% |
| COR | SELL · 10b5-1 | 2024-06-18 | 2024-06-20 | $235.76 | $5.1M | -6.0% | -5.0% | -3.4% |
| COR | SELL · 10b5-1 | 2024-05-21 | 2024-05-22 | $221.30 | $4.8M | +5.6% | +8.3% | +9.1% |
| COR | SELL | 2024-04-16 | 2024-04-17 | $237.48 | $5.1M | +0.2% | -7.2% | -5.9% |
| COR | SELL | 2024-03-19 | 2024-03-21 | $240.21 | $5.2M | +1.2% | -2.5% | -3.0% |
| COR | SELL | 2023-12-13 | 2023-12-15 | $203.18 | $17.4M | +0.9% | +8.5% | +17.8% |
| COR | SELL · 10b5-1 | 2023-12-12 | 2023-12-13 | $202.15 | $5.1M | +2.2% | +9.9% | +18.9% |
| COR | SELL · 10b5-1 | 2023-11-14 | 2023-11-15 | $197.63 | $4.9M | +3.5% | +3.0% | +18.8% |
| COR | SELL · 10b5-1 | 2023-10-10 | 2023-10-11 | $185.08 | $4.6M | +0.2% | +4.9% | +13.4% |
| COR | SELL · 10b5-1 | 2023-09-12 | 2023-09-13 | $176.79 | $1.9M | +5.6% | +6.6% | +15.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.