Insider Profile · SEC Form 4 Activity · Trailing 90 Days

Olson Tiffany

Over the trailing 90 days, Olson Tiffany (Director at CASTLE BIOSCIENCES INC) bought $185K of stock across 2 companies, per 4 SEC Form 4 transactions.

Role: Director
Companies: CSTL MDXG
Window: Trailing 90 days · 4 transactions · CIK 1442172
Net activity: +$185K ($185K bought · $0 sold)
Source: Official filings on sec.gov ↗

By Company (Trailing 90 Days)

Symbol	Company	Txns	Bought	Sold	Net
MDXG	MIMEDX GROUP, INC.	1	$185K	—	$185K
CSTL	CASTLE BIOSCIENCES INC	3	—	—	$0

Transactions (4)

Date	Symbol	Type	Shares	Value	Description
2026-06-10	MDXG	Buy	50.9K	$185K	Grant, award or other acquisition
2026-05-28	CSTL	Buy	11.8K	$0	Grant, award or other acquisition
2026-05-22	CSTL	Buy	13.7K	$0	Exercise or conversion of derivative security
2026-05-22	CSTL	Sell	13.7K	$0	Exercise or conversion of derivative security

Activity shown covers the trailing 90 days of SEC Form 4 filings. "Buy" and "sell" follow the SEC acquired/disposed codes and include compensation events (grants, option exercises, tax withholding) unless noted. Historical fact, not investment advice.

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