Koppikar Utpal

CIK: 0001742696Chief Financial Officer
Officer

Koppikar Utpal is a corporate insider (Chief Financial Officer) at Atara Biotherapeutics, Inc. (ATRA) filing SEC Form 4 transactions. 44 transactions across 3 companies, totaling $105,335 in purchases and $705,315 in sales. Source: SEC EDGAR.

Total Transactions
44
Total Buy Value
$105K
Total Sell Value
$705K
Net Activity
$-600K
Last Transaction
Jun 2026
Companies
3

Companies

Transaction History

Source: SEC EDGAR Form 4 insider transaction filings.

Type
Award
Shares
62,000
Price
$4.25
Value
$264K
Type
Award
Shares
35,500
Price
-
Value
-
Type
Award
Shares
32,500
Price
-
Value
-
Type
Award
Shares
26,000
Price
$0.00
Value
$0
Type
Sale
Shares
6,871
Price
$3.63
Value
$25K
Type
Purchase
Shares
5,667
Price
$5.60
Value
$32K
Type
Sale
Shares
2,485
Price
$5.46
Value
$14K
Type
Sale
Shares
1,083
Price
$4.49
Value
$5K
Type
Sale
Shares
5,172
Price
$4.49
Value
$23K
Type
Sale
Shares
5,940
Price
$5.04
Value
$30K
Type
Sale
Shares
5,853
Price
$5.63
Value
$33K
Type
Sale
Shares
966
Price
$5.32
Value
$5K
Type
Sale
Shares
4,616
Price
$5.32
Value
$25K
Type
Award
Shares
41,200
Price
$0.00
Value
$0
Type
Award
Shares
115,107
Price
$0.00
Value
$0
Type
Sale
Shares
1,491
Price
$9.86
Value
$15K
Type
Sale
Shares
2,272
Price
$9.86
Value
$22K
Type
Award
Shares
61,235
Price
$0.00
Value
$0
Type
Sale
Shares
2,496
Price
$14.46
Value
$36K
Flexion Therapeutics Inc
FLXN
Type
Disposition
Shares
32,000
Price
-
Value
-