Workiva Inc (WK) Insider Ownership

Historic Insider Ownership Trends

As of April 11, 2026, the three largest insider holders of WK are Jeff D. Trom (Executive Vp Cto, 511.52K shares), Julie Iskow (President Ceo, 460.53K shares), Martin J. Vanderploeg (Ceo, 439.88K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Jeff D. Trom Executive Vp Cto 290,907 220,611 06 Sep, 2022
Julie Iskow President Ceo 460,530 0 06 Apr, 2026
Martin J. Vanderploeg Ceo 0 439,885 02 Jun, 2025
Martin J. Vanderploeg Ceo 317,147 0 03 Feb, 2026
David S. Mulcahy - 240,373 0 12 Dec, 2025
Mithun Banarjee Chief Customer Officer 160,551 0 06 Sep, 2022
Barbara A Larson Evp, Cfo Treasurer 141,103 0 03 Feb, 2026
Brandon Ziegler Evp, Clo, Cao Corp Secretary 132,640 0 13 Feb, 2026
Brandon Ziegler Evp, Clo, Cao Corp Secretary 132,640 0 13 Feb, 2026
Jill Klindt Evp, Cfo Treasurer 107,581 0 27 May, 2025
Michael D. Hawkins Evp, Sales 52,306 0 14 Mar, 2025
Michael M Crow - 38,107 0 02 Jun, 2025
Robert H Herz - 0 36,809 14 Mar, 2025
Robert H Herz - 35,802 0 12 Dec, 2025
Junko Swain Svp, Chief Accounting Officer 30,834 0 13 Feb, 2026
Suku V. Radia - 0 28,154 13 Nov, 2024
Brigid A. Bonner - 21,588 0 03 Jun, 2024
Suku V. Radia - 13,218 0 02 Jun, 2025
Michael M Crow - 0 11,443 14 Jun, 2023
Astha Malik - 3,218 0 02 Jun, 2025
Richard Scott Herren - 877 0 03 Mar, 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.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
03 Apr, 2026 Julie Iskow Class A Common Stock D 7,578 $60.00 460,530 D F
02 Mar, 2026 Richard Scott Herren Class A Common Stock A 877 - 877 D A
01 Mar, 2026 Julie Iskow Class A Common Stock A 4,092 $0.00 472,893 D A
01 Mar, 2026 Julie Iskow Class A Common Stock D 2,208 $61.58 470,685 D F
01 Mar, 2026 Julie Iskow Class A Common Stock D 2,577 $61.58 468,108 D F
11 Feb, 2026 Junko Swain Class A Common Stock A 771 $0.00 31,208 D A
11 Feb, 2026 Brandon Ziegler Class A Common Stock A 5,954 $0.00 130,227 D A
11 Feb, 2026 Julie Iskow Class A Common Stock A 13,135 $0.00 459,605 D A
11 Feb, 2026 Junko Swain Class A Common Stock D 374 $64.95 30,834 D F
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 A 7,340 $0.00 137,567 D A
11 Feb, 2026 Brandon Ziegler Class A Common Stock A 3,803 $0.00 141,370 D A
11 Feb, 2026 Julie Iskow Class A Common Stock A 14,390 $0.00 494,967 D A
11 Feb, 2026 Brandon Ziegler Class A Common Stock D 8,730 $64.95 132,640 D F
11 Feb, 2026 Julie Iskow Class A Common Stock D 26,166 $64.95 468,801 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
03 Feb, 2026 Julie Iskow Class A Common Stock D 18,115 $72.00 446,470 D F
01 Feb, 2026 Junko Swain Class A Common Stock D 618 $77.02 24,228 D F
02 Feb, 2026 Barbara A Larson Class A Common Stock A 141,103 $76.54 141,103 D A