As of March 23, 2026, the three largest insider holders of ARTNA are Dian C Taylor (Director, 108.02K shares), John R Jr Eisenbrey (Director, 55.75K shares), Dian C Taylor (Director, 38.45K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Dian C Taylor | 103,021 | 0 | 23 Mar, 2026 | |
| John R Jr Eisenbrey | 55,751 | 0 | 07 May, 2025 | |
| Dian C Taylor | 0 | 38,450 | 22 Dec, 2025 | |
| Nicholle Renee Taylor | Ceo And President | 25,948 | 0 | 07 May, 2025 |
| Kenneth R Biederman | 25,875 | 0 | 07 May, 2025 | |
| John M Thaeder | Senior Vice President | 20,592 | 0 | 29 Aug, 2025 |
| William C Wyer | 20,500 | 0 | 05 May, 2022 | |
| Michael Houghton | 3,000 | 0 | 07 May, 2025 | |
| Courtney A Emerson | Gen Counsel Asst Secretary | 10 | 0 | 14 Aug, 2023 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 23 Mar, 2026 | Dian C Taylor | Class A Non-voting Common Stock | D | 1,000 | $31.25 | 103,021 | D | S |
| 19 Mar, 2026 | Dian C Taylor | Class A Non-voting Common Stock | D | 2,000 | $31.00 | 106,021 | D | S |
| 20 Mar, 2026 | Dian C Taylor | Class A Non-voting Common Stock | D | 2,000 | $31.00 | 104,021 | D | S |
| 22 Dec, 2025 | Dian C Taylor | Class A Non-voting Common Stock | D | 2,224 | $31.97 | 38,450 | I | S |
| 19 Dec, 2025 | Dian C Taylor | Class A Non-voting Common Stock | D | 2,224 | $31.73 | 40,674 | I | S |
| 16 Sep, 2025 | Jennifer Leigh Finch | Restricted Stock Grant | A | 750 | $32.08 | 750 | D | A |
| 16 Sep, 2025 | Raymond T. Kelly | Restricted Stock Grant | A | 750 | $32.08 | 750 | D | A |
| 16 Sep, 2025 | Pierre A Anderson | Restricted Stock Grant | A | 1,000 | $32.08 | 1,000 | D | A |
| 16 Sep, 2025 | David B Spacht | Restricted Stock Grant | A | 750 | $32.08 | 750 | D | A |
| 16 Sep, 2025 | Pierre A Anderson | Restricted Stock Grant | A | 750 | $32.08 | 750 | D | A |
| 16 Sep, 2025 | Daniel Konstanski | Restricted Stock Grant | A | 750 | $32.08 | 750 | D | A |
| 16 Sep, 2025 | Courtney A Emerson | Restricted Stock Grant | A | 750 | $32.08 | 750 | D | A |
| 28 Aug, 2025 | John M Thaeder | Class A Non-voting Common Stock | D | 1,000 | $33.37 | 20,592 | D | S |
| 22 Aug, 2025 | John M Thaeder | Class A Non-voting Common Stock | D | 1,000 | $33.49 | 21,592 | D | S |
| 21 Aug, 2025 | John M Thaeder | Class A Non-voting Common Stock | D | 1,000 | $32.92 | 22,592 | D | S |
| 06 May, 2025 | Nicholle Renee Taylor | Class A Non-voting Common Stock | A | 1,000 | $37.07 | 25,948 | D | J |
| 06 May, 2025 | Dian C Taylor | Class A Non-voting Common Stock | A | 1,000 | $37.07 | 108,021 | D | J |
| 06 May, 2025 | Kenneth R Biederman | Class A Non-voting Common Stock | A | 1,000 | $37.07 | 25,875 | D | J |
| 06 May, 2025 | Michael Houghton | Class A Non-voting Common Stock | A | 1,000 | $37.07 | 3,000 | D | J |
| 06 May, 2025 | John R Jr Eisenbrey | Class A Non-voting Common Stock | A | 1,000 | $37.07 | 55,751 | D | J |