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

Vistra Corp.

VST · NYSE · CIK 0001692819 · Utilities · Utilities—Independent Power Producers

INSIDER SIGNAL

No active buy signal

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

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

Last qualifying purchase2026-09-01 · BURKE JAMES A · $603.9K

WHY NO ACTIVE SIGNAL?

Purchase activityPresent
Recent buying3 qualifying line group(s)
Recent salesModerate
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
BARBAS PAUL MDirector
○▼▼
BURKE JAMES APresident and CEO
●●●
SULT JOHN RDirector
○▼
Acosta ArciliaDirector
○▼
HELM SCOTT BDirector
○▼
Montemayor MargaretSVP, Chief Accounting Officer
▼▼
● Purchase▼ Sale○ Other

Showing the six most active owners; 8 additional owner(s) remain in Form 4 evidence.

Purchase breadth & concentration

QUALIFYING BUYERS1
PURCHASE CONCENTRATION100%Largest buyer: BURKE JAMES A · $1.2M
CLUSTER BUYING · 15D1 insiderPeak activity: 2026-08-24–2026-09-01

Roles in the peak window: President and CEO. Concentration uses priced qualifying P lines only and does not change the saved score.

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: 2026-09-01 · BURKE JAMES A.

Recent Form 4 activity

3Purchases
29Sales
62Other Form 4 lines
50SEC filings · 365 days
BUYING3 qualifying P line(s) · 180 days
SELLING14 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
10,482,914
Previous report
9,701,865
Avg daily volume
4,788,550
Days to cover
2.2

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
2026-09-01BURKE JAMES APurchase (P)Common Stock4,465USD 135.25USD 603,891SEC filing ↗
2026-08-31BURKE JAMES APurchase (P)Common Stock2,200USD 135.99USD 299,178SEC filing ↗
2026-08-24BURKE JAMES APurchase (P)Common Stock2,000USD 135.00USD 270,000SEC filing ↗
2025-03-12Pitesa John WilliamPurchase (P)Common Stock1,500USD 126.75USD 190,125SEC filing ↗
2024-06-10Crutchfield LisaPurchase (P)Common Stock335USD 89.46USD 29,969SEC filing ↗
2023-06-21Lagacy Julie A.Purchase (P)Common Stock10,000USD 24.84USD 248,400SEC filing ↗
2023-03-23BURKE JAMES APurchase (P)Common Stock5,000USD 24.05USD 120,250SEC filing ↗
2023-03-17HELM SCOTT BPurchase (P)Common Stock11,000USD 24.72USD 271,920SEC filing ↗
2023-03-17BURKE JAMES APurchase (P)Common Stock5,000USD 24.50USD 122,500SEC filing ↗
2023-03-16HELM SCOTT BPurchase (P)Common Stock3,000USD 24.75USD 74,250SEC filing ↗
2023-03-15HELM SCOTT BPurchase (P)Common Stock2,000USD 24.44USD 48,880SEC filing ↗
2023-03-15BURKE JAMES APurchase (P)Common Stock8,000USD 24.25USD 194,000SEC filing ↗
2023-03-10HELM SCOTT BPurchase (P)Common Stock10,000USD 24.89USD 248,900SEC filing ↗
2023-03-10BURKE JAMES APurchase (P)Common Stock8,000USD 24.75USD 198,000SEC filing ↗
2023-03-09HELM SCOTT BPurchase (P)Common Stock10,000USD 26.28USD 262,800SEC filing ↗

Form 4 evidence

94 transaction lines in the latest 365-day window; 647 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-07Moldovan Kristopher E.Sale (S)Common Stock20,000USD 165.00USD 3,300,000SEC filing ↗
2026-10-06HUDSON SCOTT ASale (S)Common Stock22,222USD 160.14USD 3,558,631SEC filing ↗
2026-09-08Moldovan Kristopher E.Sale (S)Common Stock20,000USD 151.03USD 3,020,600SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-07Moldovan Kristopher E.Sale (S)Common Stock20,000USD 165.00USD 3,300,000SEC filing ↗
2026-10-06HUDSON SCOTT ASale (S)Common Stock22,222USD 160.14USD 3,558,631SEC filing ↗
2026-09-08Moldovan Kristopher E.Sale (S)Common Stock20,000USD 151.03USD 3,020,600SEC filing ↗
2026-09-08HUDSON SCOTT ASale (S)Common Stock44,444USD 151.82USD 6,747,545SEC filing ↗
2026-09-01BURKE JAMES APurchase (P)Common Stock4,465USD 135.25USD 603,891SEC filing ↗
2026-08-31BURKE JAMES APurchase (P)Common Stock2,200USD 135.99USD 299,178SEC filing ↗
2026-08-24BURKE JAMES APurchase (P)Common Stock2,000USD 135.00USD 270,000SEC filing ↗
2026-06-18SULT JOHN RSale (S)Common Stock6,500USD 170.00USD 1,105,000SEC filing ↗
2026-06-18Acosta ArciliaSale (S)Common Stock15,000USD 167.52USD 2,512,800SEC filing ↗
2026-06-16HELM SCOTT BSale (S)Common Stock25,000USD 160.00USD 4,000,000SEC filing ↗
2026-06-15BARBAS PAUL MSale (S)Common Stock244USD 153.00USD 37,332SEC filing ↗
2026-06-12BARBAS PAUL MSale (S)Common Stock244USD 147.93USD 36,095SEC filing ↗
2026-06-02Montemayor MargaretSale (S)Common Stock4,600USD 160.00USD 736,000SEC filing ↗
2026-05-27Montemayor MargaretSale (S)Common Stock5,000USD 164.96USD 824,800SEC filing ↗
2026-05-15Walters Robert CharlesAward / grant (A)Common Stock1,268USD 0.00USD 0SEC filing ↗
2026-05-15SULT JOHN RAward / grant (A)Common Stock1,268USD 0.00USD 0SEC filing ↗
2026-05-15Pitesa John WilliamAward / grant (A)Common Stock1,268USD 0.00USD 0SEC filing ↗
2026-05-15Lagacy Julie A.Award / grant (A)Common Stock1,268USD 0.00USD 0SEC filing ↗
2026-05-15HELM SCOTT BAward / grant (A)Common Stock2,008USD 0.00USD 0SEC filing ↗
2026-05-15Crutchfield LisaAward / grant (A)Common Stock1,268USD 0.00USD 0SEC filing ↗
2026-05-15Baiera Gavin R.Award / grant (A)Common Stock1,268USD 0.00USD 0SEC filing ↗
2026-05-15BARBAS PAUL MAward / grant (A)Common Stock1,268USD 0.00USD 0SEC filing ↗
2026-05-15Acosta ArciliaAward / grant (A)Common Stock1,268USD 0.00USD 0SEC filing ↗
2026-05-15Ackermann Hilary E.Award / grant (A)Common Stock1,268USD 0.00USD 0SEC filing ↗
2026-03-09Moore Stephanie ZapataSale (S)Common Stock10,000USD 160.31USD 1,603,100SEC filing ↗
2026-03-05Moore Stephanie ZapataTax withholding (F)Common Stock1,963USD 167.40USD 328,606SEC filing ↗
2026-03-05Moore Stephanie ZapataAward / grant (A)Common Stock5,356USD 0.00USD 0SEC filing ↗
2026-03-05Montemayor MargaretTax withholding (F)Common Stock561USD 167.40USD 93,911SEC filing ↗
2026-03-05Montemayor MargaretAward / grant (A)Common Stock1,989USD 0.00USD 0SEC filing ↗
2026-03-05Moldovan Kristopher E.Tax withholding (F)Common Stock4,226USD 167.40USD 707,432SEC 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 · —
TickerVST
CIK0001692819
SectorUtilities
IndustryUtilities—Independent Power Producers Yahoo Finance
SEC SIC4911 Electric Services
ExchangeNYSE

Data coverage

Local Form 4 history647 transaction lines from 2020-03-03 to 2026-10-07
68 P purchase lines · 152 S sale lines · 427 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.