SEC Form 4
Workiva Inc. (WK) insider trading
In the 12 months to Oct 23, 2026, 3 WK insiders reported open-market sales of $943.6K across 6 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $943.6K
- 6 filings · 3 insiders
- Open-market purchases
- $0
- 0 filings
Who traded WK, and when
- Sale
WK daily close from Oct 23, 2025 to Oct 22, 2026, between $44.31 and $93.31, last $85.04. 6 sale and 0 purchase filings by 3 insiders, marked at their filing dates. Brandon Ziegler, EVP, CLO, CAO & Corp Secretary: sold $499.2K across 1 filing, first filed Aug 21, 2026, last Aug 21, 2026. Robert H. Herz, Director: sold $263.7K across 3 filings, first filed Dec 12, 2025, last Jun 8, 2026. David S. Mulcahy, Director: sold $180.7K across 2 filings, first filed Dec 1, 2025, last Dec 12, 2025.
Largest mark · tap a row for others
Brandon Ziegler · EVP, CLO, CAO & Corp Secretary
Sale $499,199
6,571 shares at $75.97 avg
Filed Aug 21, 2026 · traded Aug 20
Close on filing date $74.83
Brandon Ziegler · EVP, CLO, CAO & Corp Secretary
EVP, CLO, CAO & Corp Secretary
$499.2K soldRobert H. Herz · Director
Director
$263.7K soldDavid S. Mulcahy · Director
Director
$180.7K soldHas Workiva Inc.'s CEO sold stock?
No. Julie Iskow (CEO) made no open-market sales filed as CEO in the last 12 months.
Open-market trades
6 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Brandon Ziegler | EVP, CLO, CAO & Corp Secretary | $499.2K | — | 1 | — | |
| Robert H. Herz | Director | $263.7K | — | 3 | — | |
| David S. Mulcahy | Director | $180.7K | — | 2 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Brandon Ziegler EVP, CLO, CAO & Corp Secretary | Sale | 6,571 | $75.97 | $499.2K | 126,216 | |
traded | Robert H. Herz Director | Sale | 1,500 | $51.23 | $76.8K | 37,372 | |
traded | Robert H. Herz Director | Sale | 1,000 | $49.69 | $49.7K | 34,802 | |
traded | David S. Mulcahy Director | Sale | 1,162 | $91.50 | $106.3K | 240,373 | |
traded | Robert H. Herz Director | Sale | 1,500 | $91.44 | $137.2K | 35,802 | |
traded | David S. Mulcahy Director | Sale | 808 | $92.01 | $74.3K | 241,535 |
GET /stocks/filings/vX/form-4?tickers=WK&filing_date.gte=2025-10-23&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"WK"
],
"issuer_cik": "0001445305",
"owner_cik": "0001809344",
"accession_number": "0001809344-26-000008",
"form_type": "4",
"filing_date": "2026-08-21",
"period_of_report": "2026-08-20",
"issuer_name": "WORKIVA INC",
"issuer_trading_symbol": "WK",
"owner_name": "Ziegler Brandon",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "EVP, CLO, CAO & Corp Secretary",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Class A Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-08-20",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 6571,
"transaction_price_per_share": 75.97,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 126216,
"transaction_value": 499198.87,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The price reported in Column 4 is a weighted-average price. The price actually received ranges from $75.76 to $76.19. For all transactions reported in this Form 4 utilizing a weighted-average price, the reporting person undertakes to provide upon request by the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price within the range."
},
{
"id": "F2",
"description": "Includes 147 shares purchased by the Reporting Person under the Workiva Inc. Employee Stock Purchase Plan on July 14, 2026"
}
]
},
{
"tickers": [
"WK"
],
"issuer_cik": "0001445305",
"owner_cik": "0001523753",
"accession_number": "0001523753-26-000006",
"form_type": "4",
"filing_date": "2026-06-08",
"period_of_report": "2026-06-04",
"issuer_name": "WORKIVA INC",
"issuer_trading_symbol": "WK",
"owner_name": "Herz Robert H",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Class A Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-06-04",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 1500,
"transaction_price_per_share": 51.23,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 37372,
"transaction_value": 76845,
"not_subject_to_section_16": false,
"direct_or_indirect": "D"
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 36 records
- Tax withholding15 records
- Grants and awards20 records
- Gifts1 record
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
Build this yourself
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for WK every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.