NCS Multistage Holdings's top three insider shareholders as of September 29, 2026 are Robert Nipper (Chief Executive Officer, 88.60K shares), Marty Stromquist (President, 30.17K shares), Matthew D Fitzgerald (Director, 17.94K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Robert Nipper | Chief Executive Officer | 0 | 88,596 | 88,596 | 69.0% | 04 Nov, 2025 |
| 2 | Matthew D Fitzgerald | Director | 17,944 | 0 | 17,944 | 14.0% | 03 Mar, 2023 |
| 3 | James Gambrell King | Chief Technology Officer | 7,970 | 0 | 7,970 | 6.2% | 03 Mar, 2023 |
| 4 | Marty Stromquist | President | 7,896 | 0 | 7,896 | 6.2% | 02 Mar, 2023 |
| 5 | Lori A Cole | Vice President, Finance | 5,920 | 0 | 5,920 | 4.6% | 03 Mar, 2023 |
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 | John D Deane | Director | Disposed D | 32,771 | — | — | 0 | Direct |
| 01 Sep, 2026 | Valerie A Mitchell | Director | Disposed D | 26,772 | — | — | 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 | Gurinder Grewal | Director | Disposed D | 20,919 | — | — | 0 | Direct |
| 01 Sep, 2026 | Michael Mcshane | Director | Disposed D | 48,778 | — | — | 0 | Direct |
| 01 Sep, 2026 | Ryan Hummer | Director, Officer | Disposed D | 48,389 | — | — | 0 | Direct |
| 01 Sep, 2026 | Dewayne Williams | Vice President And Controller | Disposed D | 3,061 | — | — | 0 | Direct |
| 01 Sep, 2026 | Michael L Morrison | Officer | Disposed D | 11,049 | — | — | 0 | Direct |
| 01 Sep, 2026 | Robert Nipper | Director | Disposed D | 36,676 | — | — | 0 | Direct |
| 01 Sep, 2026 | Ori Lev | Officer | Disposed D | 10,758 | — | — | 0 | Direct |
| 01 Sep, 2026 | W Matt Ralls | Director | Disposed D | 31,065 | — | — | 0 | Direct |
| 01 Sep, 2026 | Michael L Morrison | Officer | Disposed D | 3,898 | — | — | 0 | Direct |
| 01 Sep, 2026 | Ryan Hummer | Director, Officer | Disposed D | 7,797 | — | — | 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 | John D Deane | Director | Disposed D | 10,731 | — | — | 0 | Indirect |
| 01 Sep, 2026 | Ori Lev | Officer | Disposed D | 3,070 | — | — | 0 | Direct |
| 01 Sep, 2026 | Tim Willems | Chief Operations Officer | Disposed D | 3,952 | — | — | 0 | Direct |
| 01 Sep, 2026 | Tim Willems | Chief Operations Officer | Disposed D | 2,174 | — | — | 0 | Direct |