Workiva Inc. (WK) Insider Trading
Directors, officers and holders of more than 10% of WK report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 118 transactions on file: 0 with code P, 6 with code S and 44 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 15, 2026 | VANDERPLOEG MARTIN J. | Director | G Gift | 60,000 | Not measured | Not measured |
| Sep 15, 2026 | VANDERPLOEG MARTIN J. | Director | G Gift | 60,000 | Not measured | Not measured |
| Sep 1, 2026 | Swain Junko | SVP, Chief Accounting Officer | F Tax Payment | 2,151 | $76.70 | $164,982 |
| Aug 20, 2026 | Ziegler Brandon | EVP, CLO, CAO & Corp Secretary | S Sale | 6,571 | $75.97 | $499,199 |
| Aug 18, 2026 | VANDERPLOEG MARTIN J. | Director | G Gift | 2,780 | Not measured | Not measured |
| Jun 4, 2026 | Herz Robert H | Director | S Sale | 1,500 | $51.23 | $76,845 |
| Jun 1, 2026 | Herz Robert H | Director | A Award | 4,070 | Not measured | Not measured |
| Jun 1, 2026 | Herren Richard Scott | Director | A Award | 4,070 | Not measured | Not measured |
| Jun 1, 2026 | VANDERPLOEG MARTIN J. | Director | A Award | 4,070 | Not measured | Not measured |
| Jun 1, 2026 | CROW MICHAEL M | Director | A Award | 4,070 | Not measured | Not measured |
| Jun 1, 2026 | PEEK MARK S | Director | A Award | 4,070 | Not measured | Not measured |
| Jun 1, 2026 | RADIA SUKU V. | Director | A Award | 4,070 | Not measured | Not measured |
| Jun 1, 2026 | Malik Astha | Director | A Award | 4,070 | Not measured | Not measured |
| Jun 1, 2026 | VANDERPLOEG MARTIN J. | Director | F Tax Payment | 28,942 | $52.83 | $1,529,006 |
| May 29, 2026 | Herz Robert H | Director | S Sale | 1,000 | $49.69 | $49,690 |
| Apr 3, 2026 | Iskow Julie | President & CEO | F Tax Payment | 7,578 | $60.00 | $454,680 |
| Mar 2, 2026 | Herren Richard Scott | Director | A Award | 877 | Not measured | Not measured |
| Mar 1, 2026 | Iskow Julie | President & CEO | F Tax Payment | 2,208 | $61.58 | $135,969 |
| Mar 1, 2026 | Iskow Julie | President & CEO | A Award | 4,092 | Not measured | Not measured |
| Mar 1, 2026 | Iskow Julie | President & CEO | F Tax Payment | 2,577 | $61.58 | $158,692 |
| Feb 11, 2026 | Ziegler Brandon | EVP, CLO, CAO & Corp Secretary | F Tax Payment | 8,730 | $64.95 | $567,014 |
| Feb 11, 2026 | Swain Junko | SVP, Chief Accounting Officer | F Tax Payment | 374 | $64.95 | $24,291 |
| Feb 11, 2026 | Swain Junko | SVP, Chief Accounting Officer | A Award | 771 | Not measured | Not measured |
| Feb 11, 2026 | Ziegler Brandon | EVP, CLO, CAO & Corp Secretary | A Award | 3,803 | Not measured | Not measured |
| Feb 11, 2026 | Ziegler Brandon | EVP, CLO, CAO & Corp Secretary | A Award | 5,954 | Not measured | Not measured |
| Feb 11, 2026 | Iskow Julie | President & CEO | A Award | 13,135 | Not measured | Not measured |
| Feb 11, 2026 | Iskow Julie | President & CEO | A Award | 14,390 | Not measured | Not measured |
| Feb 11, 2026 | Ziegler Brandon | EVP, CLO, CAO & Corp Secretary | A Award | 7,340 | Not measured | Not measured |
| Feb 11, 2026 | Iskow Julie | President & CEO | A Award | 20,972 | Not measured | Not measured |
| Feb 11, 2026 | Iskow Julie | President & CEO | F Tax Payment | 26,166 | $64.95 | $1,699,482 |
| Feb 3, 2026 | Iskow Julie | President & CEO | F Tax Payment | 18,115 | $72.00 | $1,304,280 |
| Feb 3, 2026 | Ziegler Brandon | EVP, CLO, CAO & Corp Secretary | F Tax Payment | 4,531 | $72.00 | $326,232 |
| Feb 3, 2026 | Swain Junko | SVP, Chief Accounting Officer | F Tax Payment | 650 | $72.00 | $46,800 |
| Feb 2, 2026 | Iskow Julie | President & CEO | A Award | 128,038 | $76.54 | $9,800,029 |
| Feb 2, 2026 | Swain Junko | SVP, Chief Accounting Officer | A Award | 6,859 | $76.54 | $524,988 |
| Feb 2, 2026 | Larson Barbara A | EVP, CFO & Treasurer | A Award | 141,103 | $76.54 | $10,800,024 |
| Feb 2, 2026 | Ziegler Brandon | EVP, CLO, CAO & Corp Secretary | A Award | 33,839 | $76.54 | $2,590,037 |
| Feb 1, 2026 | VANDERPLOEG MARTIN J. | Director | F Tax Payment | 560 | $77.02 | $43,131 |
| Feb 1, 2026 | Iskow Julie | President & CEO | F Tax Payment | 23,460 | $77.02 | $1,806,889 |
| Feb 1, 2026 | Ziegler Brandon | EVP, CLO, CAO & Corp Secretary | F Tax Payment | 8,838 | $77.02 | $680,703 |
| Feb 1, 2026 | Swain Junko | SVP, Chief Accounting Officer | F Tax Payment | 618 | $77.02 | $47,598 |
| Jan 21, 2026 | VANDERPLOEG MARTIN J. | Director | G Gift | 491,270 | Not measured | Not measured |
| Jan 21, 2026 | VANDERPLOEG MARTIN J. | Director | G Gift | 491,270 | Not measured | Not measured |
| Dec 10, 2025 | MULCAHY DAVID S. | Director | S Sale | 1,162 | $91.50 | $106,323 |
| Dec 10, 2025 | Herz Robert H | Director | S Sale | 1,500 | $91.44 | $137,160 |
| Nov 26, 2025 | MULCAHY DAVID S. | Director | S Sale | 808 | $92.01 | $74,344 |
| Oct 30, 2025 | CROW MICHAEL M | Director | G Gift | 34,889 | Not measured | Not measured |
| Oct 30, 2025 | CROW MICHAEL M | Director | G Gift | 34,889 | Not measured | Not measured |
| Sep 2, 2025 | Swain Junko | SVP, Chief Accounting Officer | F Tax Payment | 2,093 | $82.24 | $172,128 |
| Jun 16, 2025 | RADIA SUKU V. | Director | G Gift | 1,645 | Not measured | Not measured |
The full Form 4 history is on the WK company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.