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Track record

What happened ~6 months after each disclosed buy

-1.1%avg per buy, ~6 months on+4.0%S&P 500 avg, same spans
PLSE · 2024-09-11 · -1.3% (S&P +3.3%)PLSE · 2024-09-12 · -8.1% (S&P +3.0%)SMMT · 2025-09-10 · -12.6% (S&P +5.0%)PLSE · 2025-09-10 · +22.5% (S&P +5.0%)SMMT · 2025-09-11 · -19.7% (S&P +3.6%)SMMT · 2025-10-21 · +12.7% (S&P +4.3%)
2024-09-112025-10-21
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
2 of 6
buys higher ~6mo later
-1.3%
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

$9.50B
combined est. value
SMMT
Summit Therapeutics Inc.
$8.25B
599,708,353 sh
PLSE
PULSE BIOSCIENCES, INC.
$1.25B
47,551,200 sh

Activity

Open-market buy & sell volume

BuySell
0$25.7M$51.4M2024 · bought $2.3M · sold $020242025 · bought $7.0M · sold $020252026 · bought $51.4M · sold $02026
Total +$60.72M bought

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
SMMTBuy
2025-10-21 · Summit Therapeutics Inc.
$500.0K
+12.7%
SMMTGrant
2025-10-21 · Summit Therapeutics Inc.
$5.00M
—
SMMTGrant
2025-10-21 · Summit Therapeutics Inc.
$262.00M
—
SMMTBuy
2025-09-11 · Summit Therapeutics Inc.
$90.3K
-19.7%
PLSEBuy
2025-09-10 · PULSE BIOSCIENCES, INC.
$508.1K
+22.5%
SMMTBuy
2025-09-10 · Summit Therapeutics Inc.
$5.89M
-12.6%
SMMTExercise
2025-05-30 · Summit Therapeutics Inc.
$196.8K
—
PLSEBuy
2024-09-12 · PULSE BIOSCIENCES, INC.
$2.09M
-8.1%
PLSEBuy
2024-09-11 · PULSE BIOSCIENCES, INC.
$189.1K
-1.3%

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.