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

TransUnion

TRU · NYSE · CIK 0001552033 · Industrials · Financial Data & Stock Exchanges

INSIDER SIGNAL

No active buy signal

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

59 Form 4 transaction lines observed in the same window
21 sales · 38 option, withholding, award, gift or other lines

Last qualifying purchase2023-11-17 · MONAHAN THOMAS L · $103.4K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesHigh
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
Skinner Todd C.President, International
○▼▼▼○▼▼
CHAOUKI STEVEN MPresident, US Markets
▼▼▼○▼▼
Abdelsadek MohamedEVP, Chief Global Solutions
▼○▼▼
Williams Jennifer A.SVP, Chief Accounting Officer
○▼○▼
Achanta VenkatEVP, Chief Tech, Data & Analy.
○○▼
Zuiker Alicia BrookeEVP, CHRO
○▼○
● Purchase▼ Sale○ Other

Showing the six most active owners; 6 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: 2023-11-17 · MONAHAN THOMAS L.

Recent Form 4 activity

0Purchases
34Sales
66Other Form 4 lines
90SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING21 sale line(s) · context only
OTHER38 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
11,849,701
Previous report
11,611,777
Avg daily volume
2,951,841
Days to cover
4.0

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
2023-11-17MONAHAN THOMAS LPurchase (P)Common Stock1,800USD 57.46USD 103,428SEC filing ↗
2023-10-30Zukauckas LindaPurchase (P)Common Stock2,350USD 43.62USD 102,506SEC filing ↗
2022-08-04Cartwright Christopher APurchase (P)Common Stock25,000USD 79.42USD 1,985,500SEC filing ↗
2022-02-25CLARK SUZANNE PATRICIAPurchase (P)Common Stock277USD 90.35USD 25,027SEC filing ↗

Form 4 evidence

100 transaction lines in the latest 365-day window; 567 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-15CHAOUKI STEVEN MSale (S)Common Stock1,000USD 70.00USD 70,000SEC filing ↗
2026-10-01Skinner Todd C.Sale (S)Common Stock1,000USD 62.29USD 62,290SEC filing ↗
2026-10-01Bernholz Malte HAward / grant (A)Common Stock123,834USD 0.00USD 0SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-15CHAOUKI STEVEN MSale (S)Common Stock1,000USD 70.00USD 70,000SEC filing ↗
2026-10-01Skinner Todd C.Sale (S)Common Stock1,000USD 62.29USD 62,290SEC filing ↗
2026-10-01Bernholz Malte HAward / grant (A)Common Stock123,834USD 0.00USD 0SEC filing ↗
2026-10-01Abdelsadek MohamedSale (S)Common Stock250USD 62.29USD 15,572SEC filing ↗
2026-09-14Abdelsadek MohamedSale (S)Common Stock1,250USD 79.07USD 98,837SEC filing ↗
2026-09-10Achanta VenkatSale (S)Common Stock23,287USD 77.00USD 1,793,099SEC filing ↗
2026-09-01Skinner Todd C.Sale (S)Common Stock1,000USD 84.42USD 84,420SEC filing ↗
2026-09-01Ruebensaal Clayton F.Award / grant (A)Common Stock5,976USD 0.00USD 0SEC filing ↗
2026-09-01CHAOUKI STEVEN MSale (S)Common Stock1,000USD 84.42USD 84,420SEC filing ↗
2026-09-01Achanta VenkatAward / grant (A)Common Stock71,710USD 0.00USD 0SEC filing ↗
2026-08-31Williams Jennifer A.Sale (S)Common Stock1,070USD 84.57USD 90,490SEC filing ↗
2026-08-28Zuiker Alicia BrookeTax withholding (F)Common Stock987USD 85.67USD 84,556SEC filing ↗
2026-08-28Williams Jennifer A.Tax withholding (F)Common Stock446USD 85.67USD 38,209SEC filing ↗
2026-08-28Skinner Todd C.Tax withholding (F)Common Stock7,085USD 85.67USD 606,972SEC filing ↗
2026-08-28RUSSELL HEATHER JTax withholding (F)Common Stock4,849USD 85.67USD 415,414SEC filing ↗
2026-08-28Chambers TiffaniTax withholding (F)Common Stock1,686USD 85.67USD 144,440SEC filing ↗
2026-08-28Cello Todd MTax withholding (F)Common Stock7,896USD 85.67USD 676,450SEC filing ↗
2026-08-28Cartwright Christopher ATax withholding (F)Common Stock29,262USD 85.67USD 2,506,876SEC filing ↗
2026-08-28CHAOUKI STEVEN MTax withholding (F)Common Stock8,018USD 85.67USD 686,902SEC filing ↗
2026-08-28Achanta VenkatTax withholding (F)Common Stock8,252USD 85.67USD 706,949SEC filing ↗
2026-08-28Abdelsadek MohamedTax withholding (F)Common Stock2,501USD 85.67USD 214,261SEC filing ↗
2026-08-11Zuiker Alicia BrookeSale (S)Common Stock8,673USD 78.49USD 680,744SEC filing ↗
2026-08-03Skinner Todd C.Sale (S)Common Stock950USD 79.96USD 75,962SEC filing ↗
2026-08-03CHAOUKI STEVEN MSale (S)Common Stock1,000USD 79.96USD 79,960SEC filing ↗
2026-07-28Abdelsadek MohamedSale (S)Common Stock23,495USD 85.00USD 1,997,075SEC filing ↗
2026-07-07Williams Jennifer A.Sale (S)Common Stock972USD 80.00USD 77,760SEC filing ↗
2026-07-01Zuiker Alicia BrookeTax withholding (F)Common Stock6,899USD 74.47USD 513,769SEC filing ↗
2026-07-01Skinner Todd C.Sale (S)Common Stock1,000USD 72.64USD 72,640SEC filing ↗
2026-07-01CHAOUKI STEVEN MSale (S)Common Stock10,000USD 72.64USD 726,400SEC filing ↗
2026-06-01Williams Jennifer A.Tax withholding (F)Common Stock404USD 73.51USD 29,698SEC 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 · —
TickerTRU
CIK0001552033
SectorIndustrials
IndustryFinancial Data & Stock Exchanges Yahoo Finance
SEC SIC7320 Services-Consumer Credit Reporting, Collection Agencies
ExchangeNYSE

Data coverage

Local Form 4 history567 transaction lines from 2020-02-18 to 2026-10-15
5 P purchase lines · 150 S sale lines · 412 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.