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Track record

What happened ~6 months after each disclosed buy

-6.5%avg per buy, ~6 months on+4.3%S&P 500 avg, same spans
SMMT · 2025-09-10 · -12.6% (S&P +5.0%)SMMT · 2025-09-11 · -19.7% (S&P +3.6%)SMMT · 2025-10-21 · +12.7% (S&P +4.3%)
2025-09-102025-10-21
Each dot: one completed buy’s ~6-month outcome, equal weight per buy · dashed: S&P 500 over the same spans · hover a dot for detail
1 of 3
buys higher ~6mo later
-12.6%
median outcome
+4.3%
S&P 500 median, same spans

2 buys still inside the ~6-month window — not scored yet.

Disclosed positions

Estimated from their latest filings — positions may have changed since

$7.90B
combined est. value
SMMT
Summit Therapeutics Inc.
$7.90B
573,883,879 sh

Activity

Open-market buy & sell volume

BuySell
0$25.7M$51.4M2025 · bought $6.5M · sold $020252026 · bought $51.4M · sold $02026
Total +$57.93M bought
Most bought
SMMT
$57.93M

All filings on record

Every Form 4 transaction we track for this filer

SMMTBuy
2026-06-12 · Summit Therapeutics Inc.
$49.99M
in progress
SMMTBuy
2026-06-04 · Summit Therapeutics Inc.
$1.46M
in progress
SMMTGrant
2025-10-21 · Summit Therapeutics Inc.
$262.00M
—
SMMTBuy
2025-10-21 · Summit Therapeutics Inc.
$500.0K
+12.7%
SMMTGrant
2025-10-21 · Summit Therapeutics Inc.
$5.00M
—
SMMTBuy
2025-09-11 · Summit Therapeutics Inc.
$90.3K
-19.7%
SMMTBuy
2025-09-10 · Summit Therapeutics Inc.
$5.89M
-12.6%
SMMTExercise
2025-05-30 · Summit Therapeutics Inc.
$196.8K
—

Outcomes measure each disclosed buy against the closing price ~6 months (120 trading days) later, with the S&P 500 over the same span for context. Pre-scheduled 10b5-1 plan trades are excluded from the record. Positions are estimated from the latest reported post-transaction holdings, split-adjusted, at the latest close. Built from SEC Form 4 filings and market prices — past outcomes, not predictions or advice.