EROC (ERock, Inc.)
Insider Trading Activity
Every open-market purchase and sale reported by EROC officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-04 | Walter Thomas McAndrew Jr. | 10%+ Owner | J | — | — |
| 2026-06-15 | Hans Kobler | Director | J | — | — |
| 2026-06-15 | Energy Impact Fund (FT-B) LP | 10%+ Owner | J | — | — |
| 2026-06-12 | LIVINGSTON SATTERTHWAITE | Director | A | — | — |
| 2026-06-12 | Robert Ian Blakely | Chief Financial Officer | D | — | — |
| 2026-06-12 | Mark R Patterson | Director | A | — | — |
| 2026-06-12 | Dan Brouillette | Director | A | — | — |
| 2026-06-12 | Corey Amthor | President | D | — | — |
| 2026-06-12 | CHARLES D BOYNTON | Director | A | — | — |
| 2015-10-08 | William Kemper White | Director | D | — | — |
| 2015-10-08 | HERBERT C WILLIAMSON III | Director | D | — | — |
| 2015-10-08 | WILLIAM A SMITH | Director | D | — | — |
| 2015-10-08 | PEGGY A HEEG | Director | D | — | — |
| 2015-10-08 | PHILIP B SMITH | Director | D | — | — |
| 2015-05-19 | WILLIAM A SMITH | Director | A | — | — |
| 2015-05-19 | PEGGY A HEEG | Director | A | — | — |
| 2015-05-19 | Lawrence J. Thuillier | VP & Corporate Controller | F | — | — |
| 2015-05-19 | Robert M. Haines | SVP & Chief Financial Officer | F | — | — |
| 2015-05-19 | PHILIP B SMITH | Director | A | — | — |
| 2015-05-19 | Roger A Fox | SVP, Operations | F | — | — |
| 2015-05-19 | HERBERT C WILLIAMSON III | Director | A | — | — |
| 2015-05-19 | JOSEPH A MILLS | CEO and Chairman | F | — | — |
| 2015-05-19 | William Kemper White | Director | A | — | — |
| 2015-04-24 | Lawrence J. Thuillier | VP & Corporate Controller | A | — | — |
| 2015-04-24 | Roger A Fox | SVP, Operations | A | — | — |
| 2015-04-24 | Charles C Boettcher | SVP and General Counsel | A | — | — |
| 2015-04-24 | JOSEPH A MILLS | CEO and Chairman | A | — | — |
| 2015-04-24 | Robert M. Haines | SVP & Chief Financial Officer | A | — | — |
| 2014-12-16 | Robert M. Haines | SVP & Chief Financial Officer | A | — | — |
| 2014-12-02 | Robert D Hallett | SVP, Business Development | Sell | — | — |
| 2014-11-17 | Robert D Hallett | SVP, Business Development | F | — | — |
| 2014-11-17 | Robert M. Haines | VP & Chief Financial Officer | F | — | — |
| 2014-11-17 | Lawrence J. Thuillier | VP & Corporate Controller | F | — | — |
| 2014-11-17 | JOSEPH A MILLS | CEO and Chairman | F | — | — |
| 2014-11-17 | STEVEN G HENDRICKSON | Senior Vice President | F | — | — |
| 2014-09-17 | Roger A Fox | SVP, Operations | A | — | — |
| 2014-08-28 | JOSEPH A MILLS | CEO and Chairman | Buy | — | — |
| 2014-08-28 | Robert M. Haines | VP & Chief Financial Officer | Buy | — | — |
| 2014-08-19 | Lawrence J. Thuillier | VP & Corporate Controller | A | — | — |
| 2014-08-19 | Charles C Boettcher | SVP and General Counsel | A | — | — |
| 2014-08-19 | JOSEPH E SCHIMELPFENING | SVP, Upstream Business | A | — | — |
| 2014-08-19 | JOSEPH A MILLS | CEO and Chairman | A | — | — |
| 2014-08-19 | STEVEN G HENDRICKSON | SVP, Technical Evaluations | A | — | — |
| 2014-08-19 | Robert D Hallett | SVP, Business Development | A | — | — |
| 2014-08-18 | Robert D Hallett | SVP, Business Development | Sell | — | — |
| 2014-03-06 | Robert D Hallett | SVP, Business Development | Sell | — | — |
| 2013-11-19 | JOSEPH E SCHIMELPFENING | SVP, Upstream Business | F | — | — |
| 2013-11-19 | Robert D Hallett | SVP, Business Development | F | — | — |
| 2013-11-19 | JOSEPH A MILLS | CEO and Chairman | F | — | — |
| 2013-11-19 | Jeffrey D Langemeier | VP & Controller, Corp & Mids | F | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | Director | 83,355,210 | — |
| — | 10%+ Owner | 22,536,568 | — |
| — | 10%+ Owner | 19,350,897 | — |
| — | President | 5,623,308 | — |
| — | Chief Financial Officer | 4,487,528 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the EROC quote page; the site-wide leaderboard is on the insider transactions hub.