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

Diane K. Duren

Director

Company insider

Files Form 4 as: Director, Werner Enterprises; Director, U.S. Silica Holdings; EVP Chief Admin Officer & Corp, Union Pacific.

In numbers

Trades disclosed
69
Buys
2
Sells
9
Bought
$513K
Sold
$7.9M
Companies
3
Companies where not an officer
2
First trade
6 Jun 2013
Last trade
12 May 2026
Last filed
14 May 2026

Companies traded

Where they are an officer
UNP Union PacificOfficer · Railroads & Rail Equipment · last 18 Nov 20160 buys · 8 sells
Everywhere else they filed: board seats, 10% stakes, other companies
WERN Werner EnterprisesDirector · Trucking & Logistics · last 12 May 20261 buy · 0 sells
U.S. Silica HoldingsDirector · last 31 Jul 20241 buy · 1 sell

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
12 May 2026filed 14 May 2026WERN Werner EnterprisesTrucking & LogisticsSEC FORM 4 Code A—3,025 at $0.00filing
12 May 2026filed 14 May 2026WERN Werner EnterprisesTrucking & LogisticsSEC FORM 4 Code A—3,025 at $0.00filing
13 May 2025filed 15 May 2025WERN Werner EnterprisesTrucking & LogisticsSEC FORM 4 Code A—3,706 at $0.00filing
31 Jul 2024filed 1 Aug 2024U.S. Silica HoldingsSEC FORM 4 Code D$1.4M93,350 at $15.50filing
31 Jul 2024filed 1 Aug 2024U.S. Silica HoldingsSEC FORM 4 Code D$150K9,677 at $15.50filing
14 May 2024filed 16 May 2024WERN Werner EnterprisesTrucking & LogisticsSEC FORM 4 Code A—2,739 at $0.00filing
9 May 2024filed 10 May 2024U.S. Silica HoldingsSEC FORM 4 Code A—9,677 at $0.00filing
11 May 2023filed 15 May 2023U.S. Silica HoldingsSEC FORM 4 Code A—12,077 at $0.00filing
9 May 2023filed 11 May 2023WERN Werner EnterprisesTrucking & LogisticsSEC FORM 4 Code A—2,274 at $0.00filing
16 Dec 2022filed 19 Dec 2022U.S. Silica HoldingsSEC FORM 4 Sold$184K16,089 at $11.43filing
12 May 2022filed 16 May 2022U.S. Silica HoldingsSEC FORM 4 Code A—7,467 at $0.00filing
10 May 2022filed 12 May 2022WERN Werner EnterprisesTrucking & LogisticsSEC FORM 4 Code A—2,410 at $0.00filing
13 May 2021filed 14 May 2021U.S. Silica HoldingsSEC FORM 4 Code A—11,668 at $0.00filing
11 May 2021filed 13 May 2021WERN Werner EnterprisesTrucking & LogisticsSEC FORM 4 Code A—1,709 at $0.00filing
7 May 2021filed 11 May 2021U.S. Silica HoldingsSEC FORM 4 Code F$219K18,293 at $11.97filing
12 May 2020filed 14 May 2020WERN Werner EnterprisesTrucking & LogisticsSEC FORM 4 Code A—1,941 at $0.00filing
7 May 2020filed 11 May 2020U.S. Silica HoldingsSEC FORM 4 Code A—73,171 at $0.00filing
14 May 2019filed 16 May 2019WERN Werner EnterprisesTrucking & LogisticsSEC FORM 4 Code A—1,830 at $0.00filing
10 May 2019filed 13 May 2019U.S. Silica Holdingsoption or derivativeSEC FORM 4 Code M—3,921filing
10 May 2019filed 13 May 2019U.S. Silica HoldingsSEC FORM 4 Code M—3,921filing

Sectors

Industrials9
Not placed2

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

Related people

Carrie J. PowersVP & Controller · VP & Controller at Union Pacific, filing Form 4 there in the last year
Kenyatta G. RockerEVP Marketing & Sales · EVP Marketing & Sales at Union Pacific, filing Form 4 there in the last year
Christina B. ConlinEVP Chief Legal Officer & Corp · EVP Chief Legal Officer & Corp at Union Pacific, filing Form 4 there in the last year
John WiehoffDirector · Director at Union Pacific, filing Form 4 there in the last year
Christopher J. WilliamsDirector · Director at Union Pacific, filing Form 4 there in the last year
Donald J. TrumpPresident · Also traded WERN in the last 90 days