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Who

Walter S. Woltosz

Director and 10% owner

Company insider

Files Form 4 as: Secretary-Treasurer, Simulations Plus.

In numbers

Trades disclosed
155
Buys
0
Sells
59
Bought
$0
Sold
$39.8M
Companies
1
Companies where not an officer
0
First trade
3 May 2006
Last trade
6 Oct 2026
Last filed
6 Oct 2026

Companies traded

Where they are an officer
Simulations PlusDirector, Officer, 10% owner · IT Services & Consulting · last 6 Oct 20260 buys · 59 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
20Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
6 Oct 2026filed 6 Oct 2026Simulations PlusIT Services & ConsultingSEC FORM 4 Code D$59.2M3,202,131 at $18.50filing
6 Oct 2026filed 6 Oct 2026Simulations Plusoption or derivative · IT Services & ConsultingSEC FORM 4 Code D—5,000filing
1 Jul 2026filed 6 Jul 2026Simulations PlusIT Services & ConsultingSEC FORM 4 Sold$77K4,177 at $18.44filing
1 Jun 2026filed 2 Jun 2026Simulations PlusIT Services & ConsultingSEC FORM 4 Sold$261K15,000 at $17.43filing
4 May 2026filed 5 May 2026Simulations PlusIT Services & ConsultingSEC FORM 4 Sold$227K15,000 at $15.13filing
4 May 2026filed 5 May 2026Simulations PlusIT Services & ConsultingSEC FORM 4 Sold$227K15,000 at $15.13filing
1 May 2026filed 1 May 2026Simulations PlusIT Services & ConsultingSEC FORM 4 Code A—2,117 at $0.00filing
1 May 2026filed 1 May 2026Simulations PlusIT Services & ConsultingSEC FORM 4 Code A—2,117 at $0.00filing
30 Jan 2026filed 2 Feb 2026Simulations PlusIT Services & ConsultingSEC FORM 4 Code A—1,776 at $0.00filing
30 Jan 2026filed 2 Feb 2026Simulations PlusIT Services & ConsultingSEC FORM 4 Code A—1,776 at $0.00filing
18 Dec 2025filed 22 Dec 2025Simulations PlusIT Services & ConsultingSEC FORM 4 Code G—9,095 at $0.00filing
3 Nov 2025filed 4 Nov 2025Simulations PlusIT Services & ConsultingSEC FORM 4 Code A—1,771 at $0.00filing
1 Jul 2025filed 2 Jul 2025Simulations PlusIT Services & ConsultingSEC FORM 4 Sold$140K7,776 at $17.94filing
1 Jul 2025filed 2 Jul 2025Simulations PlusIT Services & ConsultingSEC FORM 4 Sold$227K12,224 at $18.58filing
1 Apr 2025filed 2 Apr 2025Simulations PlusIT Services & ConsultingSEC FORM 4 Sold$418K17,400 at $24.01filing
1 Apr 2025filed 2 Apr 2025Simulations PlusIT Services & ConsultingSEC FORM 4 Sold$64K2,600 at $24.62filing
3 Feb 2025filed 4 Feb 2025Simulations PlusIT Services & ConsultingSEC FORM 4 Sold$187K5,579 at $33.53filing
3 Feb 2025filed 4 Feb 2025Simulations PlusIT Services & ConsultingSEC FORM 4 Sold$491K14,421 at $34.06filing
3 Feb 2025filed 4 Feb 2025Simulations PlusIT Services & ConsultingSEC FORM 4 Code A—787 at $0.00filing
1 Oct 2024filed 2 Oct 2024Simulations PlusIT Services & ConsultingSEC FORM 4 Sold$625K20,000 at $31.26filing

News

No headline names them, or the companies they trade most, lately.

Sectors

Technology59

Buys in green, sells in red, by the company’s sector.

Related people

Sharlene EvansDirector · Director at Simulations Plus, filing Form 4 there in the last year
Jill Fiedler-KellyPresident, Services Solutions · President, Services Solutions at Simulations Plus, filing Form 4 there in the last year
Daniel L. WeinerDirector · Director at Simulations Plus, filing Form 4 there in the last year
Shawn OconnorChief Executive Officer · Chief Executive Officer at Simulations Plus, filing Form 4 there in the last year
William W. FrederickEVP/CFO · EVP/CFO at Simulations Plus, filing Form 4 there in the last year