As of September 29, 2026, the three largest insider holders of NGNE are Biocapital Gp, Llc Samsara (TenPercentOwner, 1.72Mn shares), Rachel Mcminn (Chief Executive Officer, 1.34Mn shares), Christine Mikail Cvijic (President And Cfo, 84.04K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Biocapital Gp, Llc Samsara | TenPercentOwner | 0 | 1,717,127 | 1,717,127 | 52.3% | 27 Nov, 2024 |
| 2 | Rachel Mcminn | Chief Executive Officer | 1,344,307 | 0 | 1,344,307 | 40.9% | 30 Mar, 2026 |
| 3 | Christine Mikail Cvijic | President And Cfo | 84,040 | 0 | 84,040 | 2.6% | 07 Jul, 2026 |
| 4 | Bros. Advisors Lp Baker | Director, TenPercentOwner | 0 | 82,910 | 82,910 | 2.5% | 10 Oct, 2023 |
| 5 | Stuart Cobb | Chief Scientific Officer | 30,497 | 0 | 30,497 | 0.9% | 17 Mar, 2026 |
| 6 | Julie Jordan | Chief Medical Officer | 12,472 | 0 | 12,472 | 0.4% | 30 Mar, 2026 |
| 7 | Priti Patel | Chief Medical Officer | 7,463 | 0 | 7,463 | 0.2% | 04 Apr, 2023 |
| 8 | Sean Michael Smith | Interim Cfo, Prin Acct Off | 4,327 | 0 | 4,327 | 0.1% | 14 Aug, 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 |
|---|---|---|---|---|---|---|---|---|
| 06 Jul, 2026 | Christine Mikail Cvijic | President And Cfo | Disposed S | 600 | $36.02 | $21.61K | 88,240 | Direct |
| 07 Jul, 2026 | Christine Mikail Cvijic | President And Cfo | Disposed S | 4,200 | $36.13 | $151.76K | 84,040 | Direct |
| 01 Jul, 2026 | Christine Mikail Cvijic | President And Cfo | Disposed S | 739 | $34.06 | $25.17K | 92,901 | Direct |
| 02 Jul, 2026 | Christine Mikail Cvijic | President And Cfo | Disposed S | 2,531 | $34.58 | $87.52K | 90,370 | Direct |
| 02 Jul, 2026 | Christine Mikail Cvijic | President And Cfo | Disposed S | 1,530 | $35.23 | $53.90K | 88,840 | Direct |
| 06 May, 2026 | Christine Mikail Cvijic | President And Cfo | Disposed S | 4,800 | $30.07 | $144.35K | 98,440 | Direct |
| 05 May, 2026 | Christina Shafer | Chief Commercial Officer | Acquired A | 120,000 | $0.00 | $0 | 120,000 | Direct |
| 06 May, 2026 | Christine Mikail Cvijic | President And Cfo | Disposed S | 4,800 | $32.44 | $155.69K | 93,640 | Direct |
| 26 Mar, 2026 | Christine Mikail Cvijic | President And Cfo | Disposed S | 2,558 | $21.62 | $55.32K | 103,240 | Direct |
| 26 Mar, 2026 | Julie Jordan | Chief Medical Officer | Disposed S | 828 | $21.89 | $18.13K | 12,472 | Direct |
| 26 Mar, 2026 | Rachel Mcminn | Chief Executive Officer | Disposed S | 3,352 | $22.07 | $74.00K | 1,344,307 | Direct |
| 13 Mar, 2026 | Christine Mikail Cvijic | President And Cfo | Disposed S | 2,387 | $20.42 | $48.75K | 107,456 | Direct |
| 13 Mar, 2026 | Stuart Cobb | Chief Scientific Officer | Disposed S | 3,991 | $20.41 | $81.46K | 33,303 | Direct |
| 13 Mar, 2026 | Christine Mikail Cvijic | President And Cfo | Disposed S | 1,395 | $21.25 | $29.64K | 106,061 | Direct |
| 13 Mar, 2026 | Stuart Cobb | Chief Scientific Officer | Disposed S | 2,658 | $21.34 | $56.72K | 30,645 | Direct |
| 13 Mar, 2026 | Stuart Cobb | Chief Scientific Officer | Disposed S | 148 | $22.08 | $3.27K | 30,497 | Direct |
| 13 Mar, 2026 | Christine Mikail Cvijic | President And Cfo | Disposed S | 263 | $22.02 | $5.79K | 105,798 | Direct |
| 27 Feb, 2026 | Christine Mikail Cvijic | President And Cfo | Disposed S | 4,800 | $25.11 | $120.53K | 109,843 | Direct |
| 20 Feb, 2026 | Rohan Palekar | Director | Acquired A | 12,050 | $0.00 | $0 | 12,050 | Direct |
| 20 Feb, 2026 | Robert Baffi | Director | Acquired A | 12,050 | $0.00 | $0 | 12,050 | Direct |