Thomas Richard Kassberg

CBO & EVP · Ultragenyx Pharmaceutical

Thomas Richard Kassberg (CBO & EVP) filed 1 Form 4 report in the past 24 months (0 purchases, 1 sale), most often in Ultragenyx Pharmaceutical Inc. (RARE). The largest single filing was $254K of RARE (6,028 sh × $42.10, as filed), executed Mar 3 2025. Data as of Nov 8 2026.

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Return, ttmiAverage return per filing, trailing twelve months

–

no purchases on file

Delay-adjustediThe same average, entered at disclosure dates

–

returns measure stock purchases only

Filings, ttm

0 buys · 1 sells

Median delay

–

measured on stock purchases

Volume, ttmiDollar value disclosed in the trailing twelve months

$254K

shares × price, as filed

Last traded

Mar 3 2025

Filed Mar 4 2025

Median ADV $57.1M across their filed names

Open performance→

Volume by month

Buys $0 Sells $254K

Shares × price, as filed · by filing month · past 24 months

Sectors filed on

Healthcare 1 filing

Sector per market data · by filing · past 24 months

Most traded names

RARE

Ultragenyx Pharmaceutical Inc. RARE · 0 buys · 1 sell 1 filing

Recent filings

RARESALE Ultragenyx Pharmaceutical Inc. View filing → $254K
6,028 sh × $42.10
Exec Mar 3 2025
Filed Mar 4 2025 · 5:30 PM ET