← United States · All US Insider Profiles

US INSIDER PROFILE · NON-SCORING RESEARCH

SHERIFF WILLIAM M

Executive Chairman

Identity: SEC reporting-owner CIK · Reporting-owner CIK: 0001229379

Purchase history

Companies traded
1
Purchases · 12M
3
Purchases · 24M
7
Average purchase
$122.1K
Median purchase
$139.6K
Gross purchase value
$854.9K

Companies: enCore Energy Corp.

7 SEC accession(s) · 0 joint-owner event(s). Values are reported Form 4 transaction values in USD.

Qualifying purchase disclosures

PublishedCompanyTickerRoleReported valueSEC source
2026-09-21enCore Energy Corp.EUExecutive Chairman$101.2KOpen filing
2026-09-16enCore Energy Corp.EUExecutive Chairman$150.2KOpen filing
2026-05-20enCore Energy Corp.EUExecutive Chairman$146.0KOpen filing
2025-04-07enCore Energy Corp.EUExecutive Chairman$60.5KOpen filing
2025-03-24enCore Energy Corp.EUExecutive Chairman$139.6KOpen filing
2025-03-24enCore Energy Corp.EUExecutive Chairman$98.1KOpen filing
2025-03-06enCore Energy Corp.EUExecutive Chairman$159.2KOpen filing

Post-purchase outcomes

Excess return = stock return − S&P 500 ETF (SPY adjusted close) return. Returns start on the first shared trading session on or after publication.

PeriodCompleted eventsPrice coverageHit rateMedian excess returnAverage excess returnWorst excess return
5D7Developing100.0% (7/7)57.1% (4/7)+4.0%+3.9%-13.4%
20D5Developing83.3% (5/6)40.0% (2/5)-12.1%-0.9%-22.5%
60D5Developing100.0% (5/5)80.0% (4/5)+45.6%+40.3%-24.4%
120D4Small Sample100.0% (4/4)100.0% (4/4)+39.1%+57.5%+24.6%

Research patterns

First purchase in 12M
1/6
Large purchase ≥ $100k
5/7
Cluster buying · 15D
2/7
Buying the dip
7/7

Routine / opportunistic: Not classifiable. These labels never affect the score or ranking.

Small samples remain visible but are not scored. This research enrichment never affects US-v1.1.