As of April 22, 2026, Argan's top three insider holders are Rainer H Bosselmann (Chairman Ceo, 196.72K shares), Rainer H Bosselmann (Chairman Ceo, 196.72K shares), William F Jr Griffin (Director, 140.98K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Rainer H Bosselmann | Chairman Ceo | 196,723 | 0 | 11 Jun, 2025 |
| Rainer H Bosselmann | Chairman Ceo | 196,723 | 0 | 11 Jun, 2025 |
| Rainer H Bosselmann | Chairman Ceo | 196,723 | 0 | 11 Jun, 2025 |
| Rainer H Bosselmann | Chairman Ceo | 196,723 | 0 | 11 Jun, 2025 |
| William F Jr Griffin | - | 0 | 140,976 | 09 Dec, 2025 |
| David Hibbert Watson | President And Ceo | 49,998 | 0 | 20 Apr, 2026 |
| David Hibbert Watson | President And Ceo | 49,998 | 0 | 20 Apr, 2026 |
| William F. Leimkuhler | - | 49,939 | 0 | 21 Jan, 2026 |
| William F. Leimkuhler | - | 49,939 | 0 | 21 Jan, 2026 |
| David Hibbert Watson | President And Ceo | 47,132 | 0 | 10 Oct, 2025 |
| David Hibbert Watson | President And Ceo | 47,132 | 0 | 10 Oct, 2025 |
| David Hibbert Watson | President And Ceo | 47,132 | 0 | 10 Oct, 2025 |
| James W Quinn | - | 0 | 43,992 | 14 Oct, 2025 |
| James W Quinn | - | 0 | 43,992 | 14 Oct, 2025 |
| James W Quinn | - | 0 | 43,992 | 14 Oct, 2025 |
| James W Quinn | - | 0 | 43,992 | 14 Oct, 2025 |
| James W Quinn | - | 0 | 43,992 | 14 Oct, 2025 |
| William F. Leimkuhler | - | 41,495 | 0 | 15 Apr, 2026 |
| William F. Leimkuhler | - | 41,495 | 0 | 15 Apr, 2026 |
| William F. Leimkuhler | - | 41,495 | 0 | 15 Apr, 2026 |
| Charles Edwin Iv Collins | Chief Executive Officer, Gemma | 30,320 | 0 | 22 Apr, 2026 |
| Cynthia Flanders | Svp Cfo | 26,207 | 0 | 23 Jan, 2026 |
| Cynthia Flanders | Svp Cfo | 26,207 | 0 | 23 Jan, 2026 |
| Cynthia Flanders | Svp Cfo | 26,207 | 0 | 23 Jan, 2026 |
| Cynthia Flanders | Svp Cfo | 26,207 | 0 | 23 Jan, 2026 |
| Cynthia Flanders | Svp Cfo | 26,207 | 0 | 23 Jan, 2026 |
| William F Jr Griffin | - | 0 | 11,650 | 01 Nov, 2024 |
| Peter W Getsinger | - | 9,847 | 0 | 02 Apr, 2026 |
| Peter W Getsinger | - | 9,847 | 0 | 02 Apr, 2026 |
| Peter W Getsinger | - | 9,847 | 0 | 02 Apr, 2026 |
| Peter W Getsinger | - | 9,847 | 0 | 02 Apr, 2026 |
| Peter W Getsinger | - | 9,847 | 0 | 02 Apr, 2026 |
| John Ronald Jr. Jeffrey | - | 0 | 8,000 | 09 May, 2022 |
| John Ronald Jr. Jeffrey | - | 0 | 8,000 | 09 May, 2022 |
| John Ronald Jr. Jeffrey | - | 0 | 8,000 | 09 May, 2022 |
| John Ronald Jr. Jeffrey | - | 0 | 8,000 | 09 May, 2022 |
| John Ronald Jr. Jeffrey | - | 0 | 8,000 | 09 May, 2022 |
| Richard H Deily | Compliance Officer, Former Cfo | 7,802 | 0 | 31 Jul, 2025 |
| Richard H Deily | Compliance Officer, Former Cfo | 7,802 | 0 | 31 Jul, 2025 |
| Richard H Deily | Compliance Officer, Former Cfo | 7,802 | 0 | 31 Jul, 2025 |
| Richard H Deily | Compliance Officer, Former Cfo | 7,802 | 0 | 31 Jul, 2025 |
| Richard H Deily | Compliance Officer, Former Cfo | 7,802 | 0 | 31 Jul, 2025 |
| James W Quinn | - | 7,278 | 0 | 17 Dec, 2025 |
| James W Quinn | - | 7,278 | 0 | 17 Dec, 2025 |
| James W Quinn | - | 7,278 | 0 | 17 Dec, 2025 |
| James W Quinn | - | 7,278 | 0 | 17 Dec, 2025 |
| James W Quinn | - | 7,278 | 0 | 17 Dec, 2025 |
| Mano S Koilpillai | - | 4,975 | 0 | 31 Jul, 2024 |
| Mano S Koilpillai | - | 4,975 | 0 | 31 Jul, 2024 |
| Mano S Koilpillai | - | 4,975 | 0 | 31 Jul, 2024 |
| Mano S Koilpillai | - | 4,975 | 0 | 31 Jul, 2024 |
| Mano S Koilpillai | - | 4,975 | 0 | 31 Jul, 2024 |
| John Ronald Jr. Jeffrey | - | 4,698 | 0 | 22 Apr, 2026 |
| John Ronald Jr. Jeffrey | - | 3,636 | 0 | 02 Apr, 2026 |
| John Ronald Jr. Jeffrey | - | 3,636 | 0 | 02 Apr, 2026 |
| John Ronald Jr. Jeffrey | - | 3,636 | 0 | 02 Apr, 2026 |
| John Ronald Jr. Jeffrey | - | 3,636 | 0 | 02 Apr, 2026 |
| W G Champion Mitchell | - | 0 | 2,500 | 23 Apr, 2024 |
| W G Champion Mitchell | - | 0 | 2,500 | 23 Apr, 2024 |
| William F. Leimkuhler | - | 0 | 1,800 | 29 Dec, 2025 |
| William F. Leimkuhler | - | 0 | 1,800 | 29 Dec, 2025 |
| William F. Leimkuhler | - | 0 | 1,800 | 29 Dec, 2025 |
| William F. Leimkuhler | - | 0 | 1,800 | 29 Dec, 2025 |
| William F. Leimkuhler | - | 0 | 1,800 | 29 Dec, 2025 |
| Joshua Scott Baugher | Chief Financial Officer | 1,784 | 0 | 20 Apr, 2026 |
| Joshua Scott Baugher | Chief Financial Officer | 1,784 | 0 | 20 Apr, 2026 |
| Terrance Colin Trebilcock | President, Gemma Power Sys. | 1,705 | 0 | 19 Apr, 2022 |
| Terrance Colin Trebilcock | President, Gemma Power Sys. | 1,705 | 0 | 19 Apr, 2022 |
| Terrance Colin Trebilcock | President, Gemma Power Sys. | 1,705 | 0 | 19 Apr, 2022 |
| Terrance Colin Trebilcock | President, Gemma Power Sys. | 1,705 | 0 | 19 Apr, 2022 |
| Terrance Colin Trebilcock | President, Gemma Power Sys. | 1,705 | 0 | 19 Apr, 2022 |
| Karen Sweeney | - | 1,315 | 0 | 22 Sep, 2025 |
| Karen Sweeney | - | 1,315 | 0 | 22 Sep, 2025 |
| Karen Sweeney | - | 1,315 | 0 | 22 Sep, 2025 |
| Karen Sweeney | - | 1,315 | 0 | 22 Sep, 2025 |
| Karen Sweeney | - | 1,315 | 0 | 22 Sep, 2025 |
| Joshua Scott Baugher | Chief Financial Officer | 1,235 | 0 | 06 May, 2025 |
| Joshua Scott Baugher | Chief Financial Officer | 1,235 | 0 | 06 May, 2025 |
| Joshua Scott Baugher | Chief Financial Officer | 1,235 | 0 | 06 May, 2025 |
| Alexander Lisa Larroque | - | 700 | 0 | 20 Apr, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 21 Apr, 2026 | John Ronald Jr. Jeffrey | Common Stock | D | 3,636 | $615.40 | 0 | D | S |
| 20 Apr, 2026 | Charles Edwin Iv Collins | Common Stock | A | 2,500 | $39.47 | 32,820 | D | M |
| 21 Apr, 2026 | John Ronald Jr. Jeffrey | Common Stock | A | 4,698 | $37.13 | 4,698 | D | M |
| 20 Apr, 2026 | Charles Edwin Iv Collins | Common Stock | D | 2,500 | $610.00 | 30,320 | D | S |
| 21 Apr, 2026 | Charles Edwin Iv Collins | Common Stock | A | 5,000 | $36.78 | 35,320 | D | M |
| 21 Apr, 2026 | Charles Edwin Iv Collins | Common Stock | A | 5,235 | $33.81 | 40,555 | D | M |
| 21 Apr, 2026 | John Ronald Jr. Jeffrey | Option to Purchase Common Stock | D | 5,000 | $37.13 | 6,500 | D | M |
| 21 Apr, 2026 | Charles Edwin Iv Collins | Common Stock | A | 500 | $61.22 | 41,055 | D | M |
| 21 Apr, 2026 | Charles Edwin Iv Collins | Common Stock | A | 333 | $148.72 | 41,388 | D | M |
| 21 Apr, 2026 | Charles Edwin Iv Collins | Common Stock | D | 11,068 | $621.61 | 30,320 | D | S |
| 20 Apr, 2026 | Charles Edwin Iv Collins | Option to Purchase Common Stock | D | 2,500 | $39.47 | 12,567 | D | M |
| 21 Apr, 2026 | Charles Edwin Iv Collins | Option to Purchase Common Stock | D | 5,000 | $36.78 | 7,567 | D | M |
| 21 Apr, 2026 | Charles Edwin Iv Collins | Option to Purchase Common Stock | D | 5,235 | $33.81 | 2,332 | D | M |
| 21 Apr, 2026 | Charles Edwin Iv Collins | Option to Purchase Common Stock | D | 500 | $61.22 | 1,832 | D | M |
| 21 Apr, 2026 | Charles Edwin Iv Collins | Option to Purchase Common Stock | D | 333 | $148.72 | 1,499 | D | M |
| 16 Apr, 2026 | Alexander Lisa Larroque | Common Stock | A | 700 | $0.00 | 700 | D | M |
| 16 Apr, 2026 | David Hibbert Watson | Common Stock | A | 1,869 | $0.00 | 49,001 | D | M |
| 16 Apr, 2026 | Joshua Scott Baugher | Common Stock | A | 509 | $0.00 | 1,744 | D | M |
| 16 Apr, 2026 | Charles Edwin Iv Collins | Common Stock | A | 548 | $0.00 | 21,554 | D | M |
| 16 Apr, 2026 | David Hibbert Watson | Common Stock | A | 736 | $0.00 | 49,737 | D | M |