DIANE K DUREN
CIK 1563283 · EVP CHIEF ADMIN OFFICER & CORP · last filed 2026-05-14
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
Loading insider history…
Disclosed Exposure
$1.32M
Companies
3
Total Filings
41
Lifetime Open-Market Net
-$7.42M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| WERN | Director | 30,007 | $43.96 | $1.32M | $253.3K | 11 | 2026-05-14 |
| U.S. SILICA HOLDINGS, INC. (SLCA) Delisted | Director | 0 | $15.49 | $0 | $75.7K | 15 | 2024-08-01 |
| UNION PACIFIC CORP (UNPw) Delisted | EVP CHIEF ADMIN OFFICER & CORP | 140,463 | — | — | -$7.75M | 15 | 2016-11-21 |
Recent Filings · Page 2 of 5
41 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2021-05-14 | U.S. SILICA HOLDINGS, INC. (SLCA) Delisted | Grant (A) | +11,668 | $0 | EDGAR |
| 2021-05-13 | WERN | Grant (A) | +1,709 | $0 | EDGAR |
| 2021-05-11 | U.S. SILICA HOLDINGS, INC. (SLCA) Delisted | Tax (F) | −18,293 | -$219.0K | EDGAR |
| 2021-01-08 | U.S. SILICA HOLDINGS, INC. (SLCA) Delisted | — | — | $0 | EDGAR |
| 2020-05-14 | WERN | Grant (A) | +1,941 | $0 | EDGAR |
| 2020-05-11 | U.S. SILICA HOLDINGS, INC. (SLCA) Delisted | Grant (A) | +73,171 | $0 | EDGAR |
| 2019-05-16 | WERN | Grant (A) | +1,830 | $0 | EDGAR |
| 2019-05-13 | U.S. SILICA HOLDINGS, INC. (SLCA) Delisted | Mixed | +11,181 | $0 | EDGAR |
| 2018-05-14 | U.S. SILICA HOLDINGS, INC. (SLCA) Delisted | Grant (A) | — | $0 | EDGAR |
| 2018-05-10 | WERN | Grant (A) | +1,439 | $0 | EDGAR |
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.