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Mardi Dier Insider Profile
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Mardi Dier, EVP & CFO at Portola Pharma, holds 9.26K shares in Madrigal Pharmaceuticals (Ticker: MDGL), holds 6.43K shares in ACELYRIN, INC. (Ticker: SLRN), holds 66.69K shares in Ultragenyx Pharmaceutical (Ticker: RARE). Most recently, Mardi Dier Sold ― shares of Madrigal Pharmaceuticals on Mar 02, 2026 for an estimated value of $505.39K.
Profitable Transactions
7 out of 9 Profitable Transactions
Average Return
+12.10%
Average return per transaction
Time Frame
Compare to
Insider Holdings
Insider Roles
Roles that Mardi Dier holds in companies
Most Profitable Insider Trade
Stock:
Rating:Informative Sell
Date:Oct 14, 2021 - Oct 14, 2022
Return:+54.20%
The most profitable trade made by Mardi Dier
Mardi Dier's Trading History
Portola Pharma
Jul 02, 2020
―
Uninformative Buy
83.60
$0.00
Adamas Pharmaceuticals
Jun 04, 2021
―
Uninformative Buy
―
$82.20K
Oric Pharmaceuticals
―
Director
―
―
Prelude Therapeutics
Sep 29, 2020
Director
Informative Buy
190.00K
$27.10K
Ultragenyx Pharmaceutical
Oct 17, 2022
CFO & EVP
Uninformative Sell
65.42K
$1.54M
ACELYRIN, INC.
May 11, 2023
―
Informative Buy
131.51K
$14.60K
Madrigal Pharmaceuticals
Mar 02, 2026
EVP & CFO
Informative Sell
505.39K
$4.03M
List of latest transactions for each holding click on a transaction to see Mardi Dier's performance on stock
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Mardi Dier insider profile FAQ
What is the percentage of profitable transactions made by Mardi Dier?
The percentage of profitable transactions made by Mardi Dier is 78%.
What is the average return per transaction made by Mardi Dier?
The average return per transaction made by Mardi Dier is 12.10%.
What stocks does Mardi Dier hold?
Mardi Dier holds: PTLA, ADMS, ORIC, PRLD, RARE, SLRN, MDGL stocks.
What was Mardi Dier’s latest transaction?
Mardi Dier latest transaction was an Informative Sell of $505.39K.
What was Mardi Dier's most profitable transaction?
Mardi Dier’s most profitable transaction was an Informative Sell of RARE stock on October 14, 2021. The return on the trade was 54.20%.
What is Mardi Dier's role in Portola Pharma?
Mardi Dier's role in Portola Pharma is EVP & CFO.
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