Simulations Plus, Inc.

By person

14 insiders · 286 transactions

Insider

Role

Bought

Sold

Net

Holding

Worth

Change

WOLTOSZ WALTER S

Director

$1.40M (1)

$70.51M (172)

−$69.12M

8,124,458

$148.52M

−22.6%

DiBella John Anthony II

Chief Revenue Officer

—

$1.63M (10) scheduled

−$1.63M

85,140

$1.56M

+61.8%

Paglia John Kenneth

Director

—

$1.55M (8)

−$1.55M

14,589

$266.69K

—

Ralph David L.

Director

—

$1.04M (4)

−$1.04M

12,797

$233.93K

+240.6%

WEINER DANIEL L

Director

—

$811.47K (7)

−$811.47K

16,547

$302.48K

+1,007%

OCONNOR SHAWN

Chief Executive Officer

—

$669.89K (2)

−$669.89K

$0.00

—

Grasela Thaddeus Henry Jr

President

—

$430.72K (35)

−$430.72K

79,763

$1.46M

−81.4%

D ARGENIO DAVID Z

Former Director

—

$362.10K (8)

−$362.10K

33,608

$614.35K

−39.3%

LaVange Lisa

Director

—

$258.20K (10) scheduled

−$258.20K

9,968

$182.22K

+1,788%

WOLTOSZ VIRGINIA E

Secretary-Treasurer

—

$243.07K (1)

−$243.07K

5,703,416

$104.26M

−0.3%

Fiedler-Kelly Jill

President, Services Solutions

—

$167.64K (3) scheduled

−$167.64K

77,817

$1.42M

+17.7%

KNEISEL JOHN ROBERT

Former CFO

—

$90.84K (2)

−$90.84K

3,400

$62.15K

—

Evans Sharlene

Director

—

17,173

$313.92K

—

FREDERICK WILLIAM W

EVP/CFO

—

2,100

$38.39K

—

No percentages here. These insiders hold more than one class of share between them, and the share count on file covers one of them rather than all. Dividing the two would compare different things.

Individual transactions

Insider

Date

Role

Action

Price

Amount

DiBella John Anthony II

6 Feb 2026

Chief Revenue Officer

Exercised, kept

10,300

$9.71

$100.01K

Fiedler-Kelly Jill

28 Jan 2026

President, Services Solutions

Exercised, kept

8,950

$9.71

$86.90K

Fiedler-Kelly Jill

9 Sep 2024

Business Unit President

Exercised, kept

2,250

$9.71

$21.85K

FREDERICK WILLIAM W

24 Oct 2023

CFO

Exercised, kept

225

$37.89

$8.53K

Fiedler-Kelly Jill

3 Apr 2023

President, Cognigen Division

Exercised, kept

500

$6.85

$3.43K

DiBella John Anthony II

23 Mar 2023

Division President

Exercised, kept

35,000

$6.85

$239.75K

FREDERICK WILLIAM W

2 Mar 2023

CFO

Exercised, kept

1,875

$37.89

$71.04K

WOLTOSZ WALTER S

11 Oct 2022

Director

Exercised, kept

5,000

$34.23

$171.15K

WOLTOSZ WALTER S

11 Oct 2022

Director

Exercised, kept

12,000

$22.24

$266.88K

WOLTOSZ WALTER S

11 Oct 2022

Director

Exercised, kept

7,200

$17.71

$127.51K

WOLTOSZ WALTER S

11 Oct 2022

Director

Exercised, kept

3,600

$10.01

$36.04K

WOLTOSZ WALTER S

11 Oct 2022

Director

Exercised, kept

3,600

$9.82

$35.35K

WEINER DANIEL L

27 Jan 2021

Director

Exercised, kept

4,000

$34.23

$136.92K

WEINER DANIEL L

27 Jan 2021

Director

Exercised, kept

416

$14.50

$6.03K

OCONNOR SHAWN

20 Nov 2020

Chief Executive Officer

Exercised, kept

20,000

$23.75

$475.00K

KNEISEL JOHN ROBERT

12 Nov 2019

CFO

Exercised, kept

4,400

$6.85

$30.14K

WOLTOSZ WALTER S

19 Nov 2018

Director

Exercised, kept

21,600

$11.65

$251.64K

WOLTOSZ WALTER S

23 Apr 2018

Chairman and CEO

Exercised, kept

25,000

$5.61

$140.25K

KNEISEL JOHN ROBERT

16 Apr 2018

CFO

Exercised, kept

2,991

$6.85

$20.49K

WOLTOSZ WALTER S

24 Jan 2018

Chairman and CEO

Exercised, kept

17,500

$5.61

$98.18K

Showing 250 of 286 transactions. The figures above use every one of them.

By person

Individual transactions

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