Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

WORKIVA INC

WK · NYSE · CIK 0001445305 · Technology · Software—Application

INSIDER SIGNAL

No active buy signal

0 qualifying P purchase groups
in the current 180-day scoring window

13 Form 4 transaction lines observed in the same window
3 sales · 10 option, withholding, award, gift or other lines

Last qualifying purchase2024-09-11 · VANDERPLOEG MARTIN J. · $280.2K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesLow
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
Herz Robert HDirector
▼○▼
VANDERPLOEG MARTIN J.Director
○○○
PEEK MARK SDirector
○
RADIA SUKU V.Director
○
Malik AsthaDirector
○
Herren Richard ScottDirector
○
● Purchase▼ Sale○ Other

Showing the six most active owners; 3 additional owner(s) remain in Form 4 evidence.

Purchase breadth, concentration & cluster buying

These modules activate when qualifying purchases enter the 180-day research window.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2024-09-11 · VANDERPLOEG MARTIN J..

Recent Form 4 activity

0Purchases
6Sales
37Other Form 4 lines
30SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING3 sale line(s) · context only
OTHER10 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
3,558,442
Previous report
3,772,694
Avg daily volume
1,122,078
Days to cover
3.2

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2024-09-11VANDERPLOEG MARTIN J.Purchase (P)Class A Common Stock4,000USD 70.06USD 280,243SEC filing ↗
2024-08-16VANDERPLOEG MARTIN J.Purchase (P)Class A Common Stock4,000USD 78.91USD 315,640SEC filing ↗
2024-08-09VANDERPLOEG MARTIN J.Purchase (P)Class A Common Stock4,000USD 74.99USD 299,954SEC filing ↗

Form 4 evidence

43 transaction lines in the latest 365-day window; 521 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-01Swain JunkoTax withholding (F)Class A Common Stock2,151USD 76.70USD 164,982SEC filing ↗
2026-08-20Ziegler BrandonSale (S)Class A Common Stock6,571USD 75.97USD 499,199SEC filing ↗
2026-08-18VANDERPLOEG MARTIN J.Gift (G)Class A Common Stock2,780USD 0.00USD 0SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-01Swain JunkoTax withholding (F)Class A Common Stock2,151USD 76.70USD 164,982SEC filing ↗
2026-08-20Ziegler BrandonSale (S)Class A Common Stock6,571USD 75.97USD 499,199SEC filing ↗
2026-08-18VANDERPLOEG MARTIN J.Gift (G)Class A Common Stock2,780USD 0.00USD 0SEC filing ↗
2026-06-04Herz Robert HSale (S)Class A Common Stock1,500USD 51.23USD 76,845SEC filing ↗
2026-06-01VANDERPLOEG MARTIN J.Tax withholding (F)Class A Common Stock28,942USD 52.83USD 1,529,006SEC filing ↗
2026-06-01VANDERPLOEG MARTIN J.Award / grant (A)Class A Common Stock4,070USD —USD —SEC filing ↗
2026-06-01RADIA SUKU V.Award / grant (A)Class A Common Stock4,070USD —USD —SEC filing ↗
2026-06-01PEEK MARK SAward / grant (A)Class A Common Stock4,070USD —USD —SEC filing ↗
2026-06-01Malik AsthaAward / grant (A)Class A Common Stock4,070USD —USD —SEC filing ↗
2026-06-01Herz Robert HAward / grant (A)Class A Common Stock4,070USD —USD —SEC filing ↗
2026-06-01Herren Richard ScottAward / grant (A)Class A Common Stock4,070USD —USD —SEC filing ↗
2026-06-01CROW MICHAEL MAward / grant (A)Class A Common Stock4,070USD —USD —SEC filing ↗
2026-05-29Herz Robert HSale (S)Class A Common Stock1,000USD 49.69USD 49,690SEC filing ↗
2026-04-03Iskow JulieTax withholding (F)Class A Common Stock7,578USD 60.00USD 454,680SEC filing ↗
2026-03-02Herren Richard ScottAward / grant (A)Class A Common Stock877USD —USD —SEC filing ↗
2026-03-01Iskow JulieTax withholding (F)Class A Common Stock4,785USD 61.58USD 294,660SEC filing ↗
2026-03-01Iskow JulieAward / grant (A)Class A Common Stock4,092USD 0.00USD 0SEC filing ↗
2026-02-11Ziegler BrandonTax withholding (F)Class A Common Stock8,730USD 64.95USD 567,014SEC filing ↗
2026-02-11Ziegler BrandonAward / grant (A)Class A Common Stock17,097USD 0.00USD 0SEC filing ↗
2026-02-11Swain JunkoTax withholding (F)Class A Common Stock374USD 64.95USD 24,291SEC filing ↗
2026-02-11Swain JunkoAward / grant (A)Class A Common Stock771USD 0.00USD 0SEC filing ↗
2026-02-11Iskow JulieTax withholding (F)Class A Common Stock26,166USD 64.95USD 1,699,482SEC filing ↗
2026-02-11Iskow JulieAward / grant (A)Class A Common Stock48,497USD 0.00USD 0SEC filing ↗
2026-02-03Ziegler BrandonTax withholding (F)Class A Common Stock4,531USD 72.00USD 326,232SEC filing ↗
2026-02-03Swain JunkoTax withholding (F)Class A Common Stock650USD 72.00USD 46,800SEC filing ↗
2026-02-03Iskow JulieTax withholding (F)Class A Common Stock18,115USD 72.00USD 1,304,280SEC filing ↗
2026-02-02Ziegler BrandonAward / grant (A)Class A Common Stock33,839USD 76.54USD 2,590,037SEC filing ↗
2026-02-02Swain JunkoAward / grant (A)Class A Common Stock6,859USD 76.54USD 524,988SEC filing ↗
2026-02-02Larson Barbara AAward / grant (A)Class A Common Stock141,103USD 76.54USD 10,800,024SEC filing ↗
2026-02-02Iskow JulieAward / grant (A)Class A Common Stock128,038USD 76.54USD 9,800,029SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerWK
CIK0001445305
SectorTechnology
IndustrySoftware—Application Yahoo Finance
SEC SIC7372 Services-Prepackaged Software
ExchangeNYSE

Data coverage

Local Form 4 history521 transaction lines from 2020-01-02 to 2026-09-01
5 P purchase lines · 191 S sale lines · 325 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.