Parfet Donald R

CIK: 0001305641
Director
Primary company: Sierra Oncology, Inc. (SRRA)

Parfet Donald R is a corporate insider at Sierra Oncology, Inc. (SRRA) filing SEC Form 4 transactions. 181 transactions across 5 companies, totaling $904,349 in purchases and $2,489,190 in sales. Source: SEC EDGAR.

Total Transactions
181
Total Buy Value
$904K
Total Sell Value
$2.49M
Net Activity
$-1.58M
Last Transaction
Dec 2025
Companies
5

Companies

Transaction History

Source: SEC EDGAR Form 4 insider transaction filings.

Type
Award
Shares
498
Price
-
Value
-
Type
Gift
Shares
1,070
Price
-
Value
-
Type
Award
Shares
674
Price
-
Value
-
Type
Gift
Shares
1,868
Price
-
Value
-
Type
Gift
Shares
2,802
Price
-
Value
-
Type
Award
Shares
2,490
Price
-
Value
-
Type
Award
Shares
6,811
Price
$22.02
Value
$150K
Type
Award
Shares
716
Price
$0.00
Value
$0
Type
Gift
Shares
1,100
Price
$0.00
Value
$0
Type
Gift
Shares
3,006
Price
$0.00
Value
$0
Type
Award
Shares
6,815
Price
$18.34
Value
$125K
Type
Award
Shares
3,040
Price
$0.00
Value
$0
Type
Award
Shares
770
Price
$0.00
Value
$0
Type
Purchase
Shares
11,000
Price
$18.34
Value
$202K
Type
Gift
Shares
3,260
Price
$0.00
Value
$0
Type
Award
Shares
8,625
Price
$19.13
Value
$165K
Type
Award
Shares
2,930
Price
$0.00
Value
$0
Type
Gift
Shares
27,924
Price
$0.00
Value
$0
Type
Purchase
Shares
4,000
Price
$18.01
Value
$72K
Type
Purchase
Shares
5,000
Price
$17.66
Value
$88K