Newmarket's top three insider shareholders as of September 17, 2026 are Bruce C Gottwald (TenPercentOwner, 361.62K shares), Thomas E Gottwald (Chairman, President Ceo, 116.42K shares), Thomas E Gottwald (Chairman, President Ceo, 19.92K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Bruce C Gottwald | TenPercentOwner | 361,623 | 0 | 361,623 | 72.1% | 10 Sep, 2026 |
| 2 | Thomas E Gottwald | Chairman, President Ceo | 116,424 | 0 | 116,424 | 23.2% | 29 Jun, 2026 |
| 3 | Patrick D Hanley | Director | 5,232 | 0 | 5,232 | 1.0% | 05 Jul, 2023 |
| 4 | Mark M Gambill | Director | 4,149 | 0 | 4,149 | 0.8% | 01 Jul, 2026 |
| 5 | James E Rogers | Director | 3,897 | 0 | 3,897 | 0.8% | 01 Jul, 2026 |
| 6 | Brian D Paliotti | President Afton Chemical Corp | 3,239 | 0 | 3,239 | 0.6% | 09 Feb, 2026 |
| 7 | H Hiter Iii Harris | Director | 2,239 | 0 | 2,239 | 0.4% | 01 Jul, 2026 |
| 8 | Ting Xu | Director | 1,086 | 0 | 1,086 | 0.2% | 01 Jul, 2026 |
| 9 | Cameron D. Warner | Treasurer Corp Dev Dir | 978 | 0 | 978 | 0.2% | 06 Feb, 2023 |
| 10 | Bruce R Iii Hazelgrove | Evp Cao | 680 | 0 | 680 | 0.1% | 09 Feb, 2026 |
| 11 | Timothy K Fitzgerald | Vice President Cfo | 622 | 0 | 622 | 0.1% | 20 Feb, 2026 |
| 12 | Lowell Simmons Ukrop | Director | 494 | 0 | 494 | 0.1% | 01 Jul, 2026 |
| 13 | Bryce Dickinson Iii Jewett | Evp And General Counsel | 453 | 0 | 453 | 0.1% | 09 Feb, 2026 |
| 14 | William J Skrobacz | Vice President Cfo | 384 | 0 | 384 | 0.1% | 29 Feb, 2024 |
| 15 | Gail Ridgeway | Controller | 264 | 0 | 264 | 0.1% | 07 Mar, 2024 |
| 16 | Ann P Pietrantoni | Controller | 63 | 0 | 63 | 0.0% | 07 Feb, 2025 |
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 |
|---|---|---|---|---|---|---|---|---|
| 09 Sep, 2026 | Bruce C Gottwald | TenPercentOwner | Disposed G | 132 | $0.00 | $0 | 361,623 | Direct |
| 01 Jul, 2026 | Ting Xu | Director | Acquired A | 157 | $0.00 | $0 | 1,086 | Direct |
| 01 Jul, 2026 | Mark M Gambill | Director | Acquired A | 157 | $0.00 | $0 | 4,149 | Direct |
| 01 Jul, 2026 | James E Rogers | Director | Acquired A | 157 | $0.00 | $0 | 3,897 | Direct |
| 01 Jul, 2026 | H Hiter Iii Harris | Director | Acquired A | 157 | $0.00 | $0 | 2,239 | Direct |
| 01 Jul, 2026 | Lowell Simmons Ukrop | Director | Acquired A | 157 | $0.00 | $0 | 494 | Direct |
| 18 Jun, 2026 | Thomas E Gottwald | Chairman, President Ceo | Disposed G | 211 | $0.00 | $0 | 116,424 | Direct |
| 04 Jun, 2026 | Thomas E Gottwald | Chairman, President Ceo | Disposed G | 1,500 | $0.00 | $0 | 116,635 | Direct |
| 24 Feb, 2026 | Ting Xu | Director | Acquired P | 400 | $619.21 | $247.68K | 929 | Direct |
| 18 Feb, 2026 | Bruce C Gottwald | TenPercentOwner | Disposed G | 3,000 | $0.00 | $0 | 361,755 | Direct |
| 18 Feb, 2026 | Thomas E Gottwald | Chairman, President Ceo | Acquired G | 60 | $0.00 | $0 | 119,455 | Direct |
| 19 Feb, 2026 | Timothy K Fitzgerald | Vice President Cfo | Disposed F | 34 | $607.04 | $20.64K | 622 | Direct |
| 18 Feb, 2026 | Thomas E Gottwald | Chairman, President Ceo | Disposed G | 1,320 | $0.00 | $0 | 118,135 | Direct |
| 18 Feb, 2026 | Thomas E Gottwald | Chairman, President Ceo | Acquired G | 60 | $0.00 | $0 | 5,147 | Indirect |
| 18 Feb, 2026 | Thomas E Gottwald | Chairman, President Ceo | Acquired G | 120 | $0.00 | $0 | 2,436 | Indirect |
| 18 Feb, 2026 | Thomas E Gottwald | Chairman, President Ceo | Acquired G | 120 | $0.00 | $0 | 1,988 | Indirect |
| 18 Feb, 2026 | Thomas E Gottwald | Chairman, President Ceo | Acquired G | 150 | $0.00 | $0 | 1,830 | Indirect |
| 18 Feb, 2026 | Thomas E Gottwald | Chairman, President Ceo | Acquired G | 120 | $0.00 | $0 | 1,678 | Indirect |
| 18 Feb, 2026 | Thomas E Gottwald | Chairman, President Ceo | Acquired G | 150 | $0.00 | $0 | 1,436 | Indirect |
| 18 Feb, 2026 | Thomas E Gottwald | Chairman, President Ceo | Acquired G | 180 | $0.00 | $0 | 1,186 | Indirect |