Workiva Inc
Ownership
Ownership Structure
Who owns Workiva Inc (WK)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 89.6% of the shares are freely tradable; institutional investors hold 97.7%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 10.12 | 5,507,490 | +18.8 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 7.44 | 4,046,352 | +2.3 | 06/30/2026 |
| Jericho Capital Asset Management LP | 6.40 | 3,482,515 | +41.2 | 06/30/2026 |
| Hotchkis & Wiley Capital Management LLC | 4.74 | 2,578,108 | +53.5 | 06/30/2026 |
| Eminence Capital LLC | 4.63 | 2,519,889 | -32.0 | 03/31/2026 |
| Vanguard Capital Management, LLC | 4.20 | 2,287,053 | +1.3 | 06/30/2026 |
| FMR Inc | 3.12 | 1,697,045 | -5.0 | 06/30/2026 |
| State Street Corp | 2.71 | 1,475,546 | +15.6 | 06/30/2026 |
| Arrowstreet Capital Limited Partnership | 2.61 | 1,420,426 | +28.0 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 2.80 | 1,526,069 | -4.4 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Vanderploeg Martin J. | Director | 437,105 | 36,541,978 $ | Aug 18, 2026 | indirect |
| Ziegler Brandon | EVP, CLO, CAO & Corp Secretary | 126,216 | 10,551,658 $ | Aug 20, 2026 | direct |
| Swain Junko | SVP, Chief Accounting Officer | 28,830 | 2,410,188 $ | Sep 1, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 1, 2026 | Swain Junko | SVP, Chief Accounting Officer | Other | 2,151 | 76.70 | 164,982 |
| Aug 20, 2026 | Ziegler Brandon | EVP, CLO, CAO & Corp Secretary | Sell | 6,571 | 75.97 | 499,199 |
| Aug 18, 2026 | Vanderploeg Martin J. | Director | Other | 2,780 | 0.00 | – |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: October 30, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.