CoverageForm 410-K10-Q8-K13D13G13F

Berthelsen Spencer R

CIK 0001181548
Director

Filings

10

Latest Jun 3, 2026

Issuers covered

1

Showing

10 of 10

Page 1

Track record

1 of 2 open-market trades scored (50% price coverage) - 1 issuer without price data. Returns are signed: a +10% move on a sale shows as -10% (insider was wrong).

HorizonTradesWin rateAvgMedianBestWorst
30 days10%-17.7%-17.7%-17.7%-17.7%
90 days1100%+0.1%+0.1%+0.1%+0.1%
180 days1100%+6.5%+6.5%+6.5%+6.5%
365 days1100%+11.3%+11.3%+11.3%+11.3%

Issuers

Companies where Berthelsen Spencer R has filed

TickerIssuerFilingsLast filed
IONSIonis Pharmaceuticals Inc10Jun 3, 2026

All filings

10 Form 4 / 4-A filings, newest first

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