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

Simulations Plus, Inc.

SLP · Nasdaq · CIK 0001023459 · Technology

INSIDER SIGNAL

No active buy signal

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

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

Last qualifying purchase2020-08-26 · WOLTOSZ VIRGINIA E; WOLTOSZ WALTER S · $1.4M

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
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
Fiedler-Kelly JillPresident, Services Solutions
○▼○▼○▼○
DiBella John Anthony IIChief Revenue Officer
▼▼▼▼○
WOLTOSZ VIRGINIA E; WOLTOSZ WALTER SDirector,TenPercentOwner; TenPercentOwner
▼▼▼○
Evans SharleneDirector
○○
WEINER DANIEL LDirector
○○
Paglia John KennethDirector
○○
● Purchase▼ Sale○ Other

Showing the six most active owners; 2 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: 2020-08-26 · WOLTOSZ VIRGINIA E; WOLTOSZ WALTER S.

Recent Form 4 activity

0Purchases
12Sales
26Other Form 4 lines
35SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING10 sale line(s) · context only
OTHER14 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
2,879,422
Previous report
2,892,884
Avg daily volume
189,477
Days to cover
15.2

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
2020-08-26WOLTOSZ VIRGINIA E; WOLTOSZ WALTER SPurchase (P)Simulations Plus, Inc. common stock24,000USD 58.16USD 1,395,840SEC filing ↗

Form 4 evidence

38 transaction lines in the latest 365-day window; 373 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-06WOLTOSZ VIRGINIA E; WOLTOSZ WALTER SD (D)Common Stock3,202,131USD 18.50USD 59,239,424SEC filing ↗
2026-10-06WEINER DANIEL LD (D)Common Stock16,547USD 18.50USD 306,120SEC filing ↗
2026-10-06Paglia John KennethD (D)Common Stock14,589USD 18.50USD 269,896SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-06WOLTOSZ VIRGINIA E; WOLTOSZ WALTER SD (D)Common Stock3,202,131USD 18.50USD 59,239,424SEC filing ↗
2026-10-06WEINER DANIEL LD (D)Common Stock16,547USD 18.50USD 306,120SEC filing ↗
2026-10-06Paglia John KennethD (D)Common Stock14,589USD 18.50USD 269,896SEC filing ↗
2026-10-06Fiedler-Kelly JillD (D)Common Stock77,817USD 18.50USD 1,439,614SEC filing ↗
2026-10-06FREDERICK WILLIAM WD (D)Common Stock2,100USD 18.50USD 38,850SEC filing ↗
2026-10-06Evans SharleneD (D)Common Stock17,173USD 18.50USD 317,700SEC filing ↗
2026-10-06DiBella John Anthony IID (D)Common Stock85,140USD 18.50USD 1,575,090SEC filing ↗
2026-08-03DiBella John Anthony IISale (S)Common Stock1,000USD 18.28USD 18,280SEC filing ↗
2026-07-06DiBella John Anthony IISale (S)Common Stock1,000USD 18.36USD 18,360SEC filing ↗
2026-07-01WOLTOSZ VIRGINIA E; WOLTOSZ WALTER SSale (S)Common Stock4,177USD 18.44USD 77,024SEC filing ↗
2026-06-16Fiedler-Kelly JillSale (S)Common Stock7,350USD 18.20USD 133,770SEC filing ↗
2026-06-16Fiedler-Kelly JillOption exercise / conversion (M)Common Stock7,350USD 10.05USD 73,868SEC filing ↗
2026-06-15Fiedler-Kelly JillSale (S)Common Stock1,050USD 16.51USD 17,336SEC filing ↗
2026-06-15Fiedler-Kelly JillOption exercise / conversion (M)Common Stock1,050USD 10.05USD 10,552SEC filing ↗
2026-06-03DiBella John Anthony IISale (S)Common Stock1,000USD 16.50USD 16,500SEC filing ↗
2026-06-01WOLTOSZ VIRGINIA E; WOLTOSZ WALTER SSale (S)Common Stock15,000USD 17.43USD 261,450SEC filing ↗
2026-05-11Fiedler-Kelly JillSale (S)Common Stock1,000USD 16.53USD 16,530SEC filing ↗
2026-05-11Fiedler-Kelly JillOption exercise / conversion (M)Common Stock1,000USD 10.05USD 10,050SEC filing ↗
2026-05-04WOLTOSZ VIRGINIA E; WOLTOSZ WALTER SSale (S)Common Stock15,000USD 15.13USD 226,950SEC filing ↗
2026-05-04DiBella John Anthony IISale (S)Common Stock1,000USD 14.98USD 14,980SEC filing ↗
2026-05-01WOLTOSZ WALTER SAward / grant (A)Common Stock2,117USD 0.00USD 0SEC filing ↗
2026-05-01WEINER DANIEL LAward / grant (A)Common Stock2,117USD 0.00USD 0SEC filing ↗
2026-05-01Paglia John KennethAward / grant (A)Common Stock2,117USD 0.00USD 0SEC filing ↗
2026-05-01Evans SharleneAward / grant (A)Common Stock2,117USD 0.00USD 0SEC filing ↗
2026-04-15DiBella John Anthony IISale (S)Common Stock1,000USD 13.37USD 13,370SEC filing ↗
2026-02-06DiBella John Anthony IIOption exercise / conversion (M)Common Stock10,300USD 9.71USD 100,013SEC filing ↗
2026-01-30WOLTOSZ VIRGINIA E; WOLTOSZ WALTER SAward / grant (A)Common Stock1,776USD 0.00USD 0SEC filing ↗
2026-01-30WEINER DANIEL LAward / grant (A)Common Stock1,776USD 0.00USD 0SEC filing ↗
2026-01-30Paglia John KennethAward / grant (A)Common Stock1,776USD 0.00USD 0SEC filing ↗
2026-01-30Evans SharleneAward / grant (A)Common Stock1,776USD 0.00USD 0SEC 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 · —
TickerSLP
CIK0001023459
SectorTechnology
Industry— Yahoo Finance
SEC SIC7373 Services-Computer Integrated Systems Design
ExchangeNasdaq

Data coverage

Local Form 4 history373 transaction lines from 2020-01-27 to 2026-10-06
1 P purchase lines · 196 S sale lines · 176 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.