Insiders / Sheridan John F

Sheridan John F

CIK 1365369personinsider
Companies
1
First seen
Feb 19, 2026
Last activity
Jun 2, 2026

Companies

CompanyRoleShares heldPeak heldTradesLatest
Tandem Diabetes Care Inc · TNDMCEO152,443191,10317

All securities held

2 positions · latest reported per filing
CompanySecuritySharesAs of
Tandem Diabetes Care IncCommon Stock152,443May 15, 2026
Tandem Diabetes Care IncRestricted Stock UnitDerivative191,103May 29, 2026

Activity

InsidersInstitutions
This person's insider trades (Form 4), across every company.
DateActionCompanyValueShares ΔPosition afterImpact
May 15, 2026OtherTNDM
Tandem Diabetes Care Inc
Common Stock
$242.9K-19K
-11.14%
151,107
0.22% of shares
low
Feb 17, 2026OtherTNDM
Tandem Diabetes Care Inc
Common Stock
$45.5K-2K
-1.89%
124,691
0.18% of shares
low
May 15, 2026OtherTNDM
Tandem Diabetes Care Inc
Common Stock
$39.0K-3K
-2.28%
130,316
0.19% of shares
low
Feb 17, 2026OtherTNDM
Tandem Diabetes Care Inc
Common Stock
$37.2K-2K
-1.59%
121,108
0.17% of shares
low
May 15, 2026OtherTNDM
Tandem Diabetes Care Inc
Common Stock
$35.7K-3K
-2.14%
127,378
0.18% of shares
low
May 15, 2026GrantTNDM
Tandem Diabetes Care Inc
Common Stock
$14.6K+1K
+0.88%
152,443
0.22% of shares
low
May 15, 2026ExerciseTNDM
Tandem Diabetes Care Inc
Common Stock
$0+40K
+30.49%
170,051
0.24% of shares
low
May 15, 2026ExerciseTNDM
Tandem Diabetes Care Inc
Common Stock
$0+6K
+4.70%
133,360
0.19% of shares
low
May 15, 2026ExerciseTNDM
Tandem Diabetes Care Inc
Common Stock
$0+5K
+4.39%
130,163
0.19% of shares
low
Feb 17, 2026ExerciseTNDM
Tandem Diabetes Care Inc
Common Stock
$0+6K
+4.94%
127,091
0.18% of shares
low