rotation.to
Following this device: dark.
Free account
rotation.to
Appearance
Following this device: dark.
Drag a card by its title · ⚙ to size, swap or remove

Who

Dick Allen

Other role

Company insider

Files Form 4 as: Director and Other, Tandem Diabetes Care.

In numbers

Trades disclosed
121
Buys
6
Sells
9
Bought
$811K
Sold
$6.8M
Companies
1
Companies where not an officer
1
First trade
13 Nov 2013
Last trade
21 May 2026
Last filed
22 May 2026

Companies traded

Everywhere else they filed: board seats, 10% stakes, other companies
TNDM Tandem Diabetes CareDirector, Other · Medical Devices · last 21 May 20266 buys · 9 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
101Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
21 May 2026filed 22 May 2026TNDM Tandem Diabetes CareMedical DevicesSEC FORM 4 Code M—8,759 at $0.00filing
21 May 2026filed 22 May 2026TNDM Tandem Diabetes Careoption or derivative · Medical DevicesSEC FORM 4 Code M—8,759 at $0.00filing
21 May 2026filed 22 May 2026TNDM Tandem Diabetes Careoption or derivative · Medical DevicesSEC FORM 4 Code M—8,759 at $0.00filing
21 May 2026filed 22 May 2026TNDM Tandem Diabetes CareMedical DevicesSEC FORM 4 Code M—8,759 at $0.00filing
20 May 2026filed 22 May 2026TNDM Tandem Diabetes Careoption or derivative · Medical DevicesSEC FORM 4 Code A—10,220 at $0.00filing
20 May 2026filed 22 May 2026TNDM Tandem Diabetes Careoption or derivative · Medical DevicesSEC FORM 4 Code A—10,220 at $0.00filing
2 Jun 2025filed 4 Jun 2025TNDM Tandem Diabetes CareMedical DevicesSEC FORM 4 Code G$20K1,000 at $19.88filing
22 May 2025filed 23 May 2025TNDM Tandem Diabetes Careoption or derivative · Medical DevicesSEC FORM 4 Code M—4,387 at $0.00filing
22 May 2025filed 23 May 2025TNDM Tandem Diabetes CareMedical DevicesSEC FORM 4 Code M$91K4,387 at $20.64filing
21 May 2025filed 23 May 2025TNDM Tandem Diabetes Careoption or derivative · Medical DevicesSEC FORM 4 Code A—8,759 at $0.00filing
7 Aug 2024filed 9 Aug 2024TNDM Tandem Diabetes CareMedical DevicesSEC FORM 4 Code G$258K6,639 at $38.89filing
11 Jun 2024filed 13 Jun 2024TNDM Tandem Diabetes CareMedical DevicesSEC FORM 4 Code J—9,396 at $0.00filing
11 Jun 2024filed 13 Jun 2024TNDM Tandem Diabetes CareMedical DevicesSEC FORM 4 Code J—9,396 at $0.00filing
6 Jun 2024filed 10 Jun 2024TNDM Tandem Diabetes CareMedical DevicesSEC FORM 4 Code G$97K1,892 at $51.32filing
30 May 2024filed 3 Jun 2024TNDM Tandem Diabetes CareMedical DevicesSEC FORM 4 Sold$258K5,000 at $51.68filing
24 May 2024filed 24 May 2024TNDM Tandem Diabetes Careoption or derivative · Medical DevicesSEC FORM 4 Code M—4,434 at $0.00filing
24 May 2024filed 24 May 2024TNDM Tandem Diabetes CareMedical DevicesSEC FORM 4 Code M$229K4,434 at $51.73filing
22 May 2024filed 24 May 2024TNDM Tandem Diabetes Careoption or derivative · Medical DevicesSEC FORM 4 Code A—4,387 at $0.00filing
27 Nov 2023filed 29 Nov 2023TNDM Tandem Diabetes CareMedical DevicesSEC FORM 4 Bought$95K5,000 at $18.96filing
25 May 2023filed 26 May 2023TNDM Tandem Diabetes Careoption or derivative · Medical DevicesSEC FORM 4 Code M—2,757 at $0.00filing

News

Tandem Diabetes Care (TNDM) Following App Recall Is The Undervalued Case Still IntactTNDM · cedarnews.net · 18 Oct 2026

0 headlines in the last 90 days name Dick Allen; 1 article from the last 14 days about the 1 company they traded most, at most three about any one of them.

Sectors

Health Care15

Buys in green, sells in red, by the company’s sector.

Related people

Jean-Claude KyrillosEVP & Chief Operating Officer · EVP & Chief Operating Officer at Tandem Diabetes Care, filing Form 4 there in the last year
John F. SheridanPresident & CEO · President & CEO at Tandem Diabetes Care, filing Form 4 there in the last year
Elizabeth Anne GasserEVP, Chief Strategy Officer · EVP, Chief Strategy Officer at Tandem Diabetes Care, filing Form 4 there in the last year
Shannon Marie HansenEVP & Chief Legal Officer · EVP & Chief Legal Officer at Tandem Diabetes Care, filing Form 4 there in the last year
Susan MorrisonEVP & Chief Admin. Officer · EVP & Chief Admin. Officer at Tandem Diabetes Care, filing Form 4 there in the last year
Gilbert Ray Cisneros, Jr.Representative, CA-31 · Also traded TNDM in the last 90 days
Donald J. TrumpPresident · Also traded TNDM in the last 90 days