As of September 09, 2026, NCS Multistage Holdings's top three insider holders are Robert Nipper (Chief Executive Officer, 88.60K shares), Robert Nipper (Chief Executive Officer, 88.60K shares), Robert Nipper (Chief Executive Officer, 36.68K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Robert Nipper | Chief Executive Officer | 36,676 | 0 | 36,676 | 32.4% | 03 Mar, 2026 |
| 2 | W Matt Ralls | Director | 31,065 | 0 | 31,065 | 27.5% | 03 Mar, 2026 |
| 3 | Matthew D Fitzgerald | Director | 17,944 | 0 | 17,944 | 15.9% | 03 Mar, 2023 |
| 4 | James Gambrell King | Chief Technology Officer | 7,970 | 0 | 7,970 | 7.0% | 03 Mar, 2023 |
| 5 | Marty Stromquist | President | 7,896 | 0 | 7,896 | 7.0% | 02 Mar, 2023 |
| 6 | Lori A Cole | Vice President, Finance | 5,920 | 0 | 5,920 | 5.2% | 03 Mar, 2023 |
| 7 | Dewayne Williams | Vp Controller | 5,607 | 0 | 5,607 | 5.0% | 03 Mar, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 01 Sep, 2026 | Michael L Morrison | Officer | Disposed D | 11,049 | — | — | 0 | Direct |
| 01 Sep, 2026 | W Matt Ralls | Director | Disposed D | 31,065 | — | — | 0 | Direct |
| 01 Sep, 2026 | Ori Lev | Officer | Disposed D | 10,758 | — | — | 0 | Direct |
| 01 Sep, 2026 | Ryan Hummer | Director, Officer | Disposed D | 48,389 | — | — | 0 | Direct |
| 01 Sep, 2026 | Gurinder Grewal | Director | Disposed D | 20,919 | — | — | 0 | Direct |
| 01 Sep, 2026 | Robert Nipper | Director | Disposed D | 36,676 | — | — | 0 | Direct |
| 01 Sep, 2026 | Michael Mcshane | Director | Disposed D | 48,778 | — | — | 0 | Direct |
| 01 Sep, 2026 | International, L.P. Advent | TenPercentOwner | Disposed S | 1,478,426 | — | — | 0 | Indirect |
| 01 Sep, 2026 | Tim Willems | Chief Operations Officer | Disposed D | 27,241 | — | — | 0 | Direct |
| 01 Sep, 2026 | Valerie A Mitchell | Director | Disposed D | 26,772 | — | — | 0 | Direct |
| 01 Sep, 2026 | John D Deane | Director | Disposed D | 32,771 | — | — | 0 | Direct |
| 01 Sep, 2026 | Dewayne Williams | Vice President And Controller | Disposed D | 3,061 | — | — | 0 | Direct |
| 01 Sep, 2026 | Ryan Hummer | Director, Officer | Disposed D | 7,797 | — | — | 0 | Direct |
| 01 Sep, 2026 | Tim Willems | Chief Operations Officer | Disposed D | 3,952 | — | — | 0 | Direct |
| 01 Sep, 2026 | Robert Nipper | Director | Disposed D | 88,596 | — | — | 0 | Indirect |
| 01 Sep, 2026 | Dewayne Williams | Vice President And Controller | Disposed D | 2,653 | — | — | 0 | Direct |
| 01 Sep, 2026 | Michael L Morrison | Officer | Disposed D | 3,898 | — | — | 0 | Direct |
| 01 Sep, 2026 | Ori Lev | Officer | Disposed D | 3,070 | — | — | 0 | Direct |
| 01 Sep, 2026 | John D Deane | Director | Disposed D | 10,731 | — | — | 0 | Indirect |
| 01 Sep, 2026 | Dewayne Williams | Vice President And Controller | Disposed D | 1,180 | — | — | 0 | Direct |