Data spanning the past 90 days through February 19, 2026 reveals that Workiva's three principal insider shareholders consist of Director Martin J. Vanderploeg (757.03K shares), Executive Vp & Cto Jeff D. Trom (511.52K shares), President & Ceo Julie Iskow (468.80K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Martin J. Vanderploeg | 757,032 | 03 Feb, 2026 | |
| Jeff D. Trom | Executive Vp & Cto | 511,518 | 06 Sep, 2022 |
| Julie Iskow | President & Ceo | 468,801 | 13 Feb, 2026 |
| David S. Mulcahy | 240,373 | 12 Dec, 2025 | |
| Mithun Banarjee | Chief Customer Officer | 160,551 | 06 Sep, 2022 |
| Barbara A Larson | Evp And Cfo & Treasurer | 141,103 | 03 Feb, 2026 |
| Brandon Ziegler | Evp And Clo And Cao & Corp Secretary | 132,640 | 13 Feb, 2026 |
| Jill Klindt | Evp And Cfo & Treasurer | 107,581 | 27 May, 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 | 30,834 | 13 Feb, 2026 |
| 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 |
|---|---|---|---|---|---|---|---|---|
| 11 Feb, 2026 | Julie Iskow | Class A Common Stock | D | 26,166 | $64.95 | 468,801 | D | F |
| 11 Feb, 2026 | Julie Iskow | Class A Common Stock | A | 13,135 | $0.00 | 459,605 | D | A |
| 11 Feb, 2026 | Julie Iskow | Class A Common Stock | A | 14,390 | $0.00 | 494,967 | D | A |
| 11 Feb, 2026 | Julie Iskow | Class A Common Stock | A | 20,972 | $0.00 | 480,577 | D | A |
| 11 Feb, 2026 | Brandon Ziegler | Class A Common Stock | D | 8,730 | $64.95 | 132,640 | D | F |
| 11 Feb, 2026 | Brandon Ziegler | Class A Common Stock | A | 3,803 | $0.00 | 141,370 | D | A |
| 11 Feb, 2026 | Brandon Ziegler | Class A Common Stock | A | 7,340 | $0.00 | 137,567 | D | A |
| 11 Feb, 2026 | Brandon Ziegler | Class A Common Stock | A | 5,954 | $0.00 | 130,227 | D | A |
| 11 Feb, 2026 | Junko Swain | Class A Common Stock | A | 771 | $0.00 | 31,208 | D | A |
| 11 Feb, 2026 | Junko Swain | Class A Common Stock | D | 374 | $64.95 | 30,834 | D | F |
| 03 Feb, 2026 | Julie Iskow | Class A Common Stock | D | 18,115 | $72.00 | 446,470 | D | F |
| 03 Feb, 2026 | Brandon Ziegler | Class A Common Stock | D | 4,531 | $72.00 | 124,273 | D | F |
| 03 Feb, 2026 | Junko Swain | Class A Common Stock | D | 650 | $72.00 | 30,437 | D | F |
| 02 Feb, 2026 | Julie Iskow | Class A Common Stock | A | 128,038 | $76.54 | 464,585 | D | A |
| 02 Feb, 2026 | Brandon Ziegler | Class A Common Stock | A | 33,839 | $76.54 | 128,804 | D | A |
| 02 Feb, 2026 | Barbara A Larson | Class A Common Stock | A | 141,103 | $76.54 | 141,103 | D | A |
| 02 Feb, 2026 | Junko Swain | Class A Common Stock | A | 6,859 | $76.54 | 31,087 | D | A |
| 01 Feb, 2026 | Martin J. Vanderploeg | Class A Common Stock | D | 560 | $77.02 | 317,147 | D | F |
| 01 Feb, 2026 | Julie Iskow | Class A Common Stock | D | 23,460 | $77.02 | 336,547 | D | F |
| 01 Feb, 2026 | Brandon Ziegler | Class A Common Stock | D | 8,838 | $77.02 | 94,965 | D | F |