Data spanning the past 90 days through January 10, 2026 reveals that Workiva's three principal insider shareholders consist of Director Martin J. Vanderploeg (757.59K shares), Executive Vp & Cto Jeff D. Trom (511.52K shares), President & Ceo Julie Iskow (360.01K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Martin J. Vanderploeg | 757,592 | 02 Jun, 2025 | |
| Jeff D. Trom | Executive Vp & Cto | 511,518 | 06 Sep, 2022 |
| Julie Iskow | President & Ceo | 360,007 | 04 Apr, 2025 |
| David S. Mulcahy | 240,373 | 12 Dec, 2025 | |
| Mithun Banarjee | Chief Customer Officer | 160,551 | 06 Sep, 2022 |
| Jill Klindt | Evp And Cfo & Treasurer | 107,581 | 27 May, 2025 |
| Brandon Ziegler | Evp And Clo And Cao & Corp Secretary | 103,509 | 07 Mar, 2025 |
| Robert H Herz | 72,611 | 12 Dec, 2025 | |
| Michael D. Hawkins | Evp And Sales | 52,306 | 14 Mar, 2025 |
| Michael M Crow | 49,550 | 02 Jun, 2025 | |
| Suku V. Radia | 41,372 | 02 Jun, 2025 | |
| Junko Swain | Svp And Chief Accounting Officer | 24,661 | 03 Sep, 2025 |
| Brigid A. Bonner | 21,588 | 03 Jun, 2024 | |
| Astha Malik | 3,218 | 02 Jun, 2025 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 10 Dec, 2025 | David S. Mulcahy | Class A Common Stock | D | 1,162 | $91.50 | 240,373 | D | S |
| 10 Dec, 2025 | Robert H Herz | Class A Common Stock | D | 1,500 | $91.44 | 35,802 | D | S |
| 26 Nov, 2025 | David S. Mulcahy | Class A Common Stock | D | 808 | $92.01 | 241,535 | D | S |
| 02 Sep, 2025 | Junko Swain | - | - | 24,661 | D | |||
| 02 Sep, 2025 | Junko Swain | Class A Common Stock | D | 2,093 | $82.24 | 24,661 | D | F |
| 29 May, 2025 | Martin J. Vanderploeg | - | - | 317,707 | D | |||
| 29 May, 2025 | Martin J. Vanderploeg | Class A Common Stock | A | 3,218 | - | 317,707 | D | A |
| 29 May, 2025 | Suku V. Radia | Class A Common Stock | A | 3,218 | - | 13,218 | D | A |
| 29 May, 2025 | Michael M Crow | Class A Common Stock | A | 3,218 | - | 38,107 | D | A |
| 29 May, 2025 | David S. Mulcahy | - | - | 242,343 | D | |||
| 29 May, 2025 | David S. Mulcahy | Class A Common Stock | A | 3,218 | - | 242,343 | D | A |
| 29 May, 2025 | Robert H Herz | Class A Common Stock | A | 3,218 | - | 37,302 | D | A |
| 29 May, 2025 | Astha Malik | Class A Common Stock | A | 3,218 | - | 3,218 | D | A |
| 23 May, 2025 | Jill Klindt | Class A Common Stock | D | 7,773 | $67.10 | 107,581 | D | S |
| 09 May, 2025 | Jill Klindt | - | - | 115,354 | D | |||
| 09 May, 2025 | Jill Klindt | Class A Common Stock | D | 3,700 | $0.00 | 115,354 | D | G |
| 05 May, 2025 | Martin J. Vanderploeg | Class A Common Stock | A | 84,210 | $0.00 | 439,885 | I | G |
| 05 May, 2025 | Martin J. Vanderploeg | Class A Common Stock | D | 84,210 | $0.00 | 314,489 | D | G |
| 05 May, 2025 | Martin J. Vanderploeg | - | - | 439,885 | I | |||
| 15 Apr, 2025 | Martin J. Vanderploeg | - | - | 398,699 | D |