Blackford Quentin S.

CIK: 0001612451
Director
Primary company: DEXCOM INC (DXCM)

Blackford Quentin S. is a corporate insider at DEXCOM INC (DXCM) filing SEC Form 4 transactions. 175 transactions across 6 companies, totaling $1,689,589 in purchases and $54,298,262 in sales. Source: SEC EDGAR.

Total Transactions
175
Total Buy Value
$1.69M
Total Sell Value
$54.30M
Net Activity
$-52.61M
Last Transaction
Jun 2026
Companies
6

Companies

Transaction History

Source: SEC EDGAR Form 4 insider transaction filings.

Type
Award
Shares
32,012
Price
-
Value
-
Type
Sale
Shares
5,423
Price
$128.44
Value
$697K
Type
Sale
Shares
4,043
Price
$128.44
Value
$519K
Type
Sale
Shares
4,347
Price
$128.44
Value
$558K
Type
Sale
Shares
25,540
Price
$135.42
Value
$3.46M
Type
Award
Shares
46,687
Price
-
Value
-
Type
Sale
Shares
14,059
Price
$182.94
Value
$2.57M
Type
Sale
Shares
306
Price
$165.00
Value
$50K
Type
Sale
Shares
3,174
Price
$163.93
Value
$520K
Type
Sale
Shares
1,514
Price
$163.30
Value
$247K
Type
Sale
Shares
1,600
Price
$161.92
Value
$259K
Type
Sale
Shares
4,905
Price
$160.73
Value
$788K
Type
Sale
Shares
9,775
Price
$160.06
Value
$1.56M
Type
Sale
Shares
8,726
Price
$158.85
Value
$1.39M
Type
Award
Shares
15,131
Price
-
Value
-
Type
Award
Shares
297
Price
$71.46
Value
$21K
Type
Gift
Shares
21,000
Price
-
Value
-
Paragon 28, Inc.
FNA
Type
Disposition
Shares
50,554
Price
-
Value
-
Type
Sale
Shares
8,145
Price
$108.77
Value
$886K
Type
Sale
Shares
22,252
Price
$112.13
Value
$2.50M