*Notional-weighted price return on lawmakers' disclosed buys of MCK, marked to the latest close — per-share (share counts aren't disclosed).
| Date | Member | Type | Amount | Est. price | Latest close | Return |
|---|---|---|---|---|---|---|
| 2014-07-23 | Susan M Collins | SELL | $1K–$15K | $190.68 | $763.51 2026-06-26 | +10.6% rt |
| 2014-07-23 | Susan M Collins | SELL | $1K–$15K | $190.68 | $763.51 2026-06-26 | +8.5% rt |
| 2014-02-26 | Susan M Collins | BUY | $1K–$15K | $174.78 | $763.51 2026-06-26 | +336.8% |
| 2014-02-13 | Susan M Collins | BUY | $1K–$15K | $175.67 | $763.51 2026-06-26 | +334.6% |
| 2014-02-06 | Susan M Collins | BUY | $1K–$15K | $172.40 | $763.51 2026-06-26 | +342.9% |
| 2013-09-27 | SHELDON WHITEHOUSE | BUY | $1K–$15K | $129.29 | $763.51 2026-06-26 | +490.5% |
Return: buys marked to the latest close (open); sells tagged rt are realized round-trips vs a prior disclosed buy; exit = timing (stock move after the sale, seller's perspective).