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SLP Insider Trading

Insider Ownership Percentage: 19.40%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $1,348,400.00

Simulations Plus Insider Trading History Chart

This chart shows the insider buying and selling history at Simulations Plus by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Simulations Plus Share Price & Price History

Current Price: $20.49
Price Change: ▲ Price Increase of +0.14 (0.69%)
As of 12/4/2025 05:00 PM ET

This chart shows the closing price history over time for SLP up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

Simulations Plus Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
5/1/2025Walter S. WoltoszDirectorSell20,000$33.51$670,200.003,344,157View SEC Filing Icon  
2/3/2025Walter S. WoltoszDirectorSell20,000$33.91$678,200.003,402,584View SEC Filing Icon  
12/2/2024Walter S. WoltoszDirectorSell20,000$31.76$635,200.003,442,584View SEC Filing Icon  
11/1/2024Walter S. WoltoszDirectorSell20,000$27.66$553,200.003,462,584View SEC Filing Icon  
10/1/2024Walter S. WoltoszDirectorSell20,000$31.26$625,200.003,481,592View SEC Filing Icon  
9/27/2024Daniel L WeinerDirectorSell750$31.54$23,655.006,994View SEC Filing Icon  
9/3/2024Walter S. WoltoszDirectorSell20,000$35.18$703,600.003,501,592View SEC Filing Icon  
8/1/2024Walter S. WoltoszDirectorSell20,000$39.63$792,600.003,521,592View SEC Filing Icon  
7/1/2024Walter S. WoltoszDirectorSell20,000$46.71$934,200.003,540,857View SEC Filing Icon  
6/28/2024Daniel L WeinerDirectorSell750$49.32$36,990.007,009View SEC Filing Icon  
5/14/2024Lisa LaVangeDirectorSell500$50.00$25,000.007,373View SEC Filing Icon  
5/7/2024Daniel L WeinerDirectorSell3,250$48.31$157,007.508,759View SEC Filing Icon  
5/1/2024Walter S. WoltoszDirectorSell20,000$45.95$919,000.003,580,857View SEC Filing Icon  
4/1/2024Walter S. WoltoszDirectorSell20,000$39.94$798,800.003,600,195View SEC Filing Icon  
2/1/2024Walter S. WoltoszDirectorSell18,945$38.02$720,288.903,641,250View SEC Filing Icon  
1/4/2024John Kenneth PagliaDirectorSell1,000$43.74$43,740.002,097View SEC Filing Icon  
1/2/2024Walter S. WoltoszDirectorSell20,000$44.46$889,200.003,659,403View SEC Filing Icon  
12/22/2023John Anthony DiBella, IIInsiderSell5,411$45.16$244,360.7674,429View SEC Filing Icon  
12/4/2023Walter S. WoltoszDirectorSell21,802$38.67$843,083.343,771,453View SEC Filing Icon  
12/1/2023Walter S. WoltoszDirectorSell31,148$38.80$1,208,542.403,793,255View SEC Filing Icon  
11/8/2023John Kenneth PagliaDirectorSell1,000$35.25$35,250.003,097View SEC Filing Icon  
7/27/2023Lisa LaVangeDirectorSell992$49.29$48,895.685,616View SEC Filing Icon  
7/13/2023John Kenneth PagliaDirectorSell1,200$46.45$55,740.002,644View SEC Filing Icon  
6/28/2023Walter S. WoltoszDirectorSell16,246$43.07$699,715.223,840,212View SEC Filing Icon  
5/30/2023Walter S. WoltoszDirectorSell20,000$46.05$921,000.003,856,458View SEC Filing Icon  
4/26/2023Walter S. WoltoszDirectorSell20,000$41.52$830,400.003,875,739View SEC Filing Icon  
3/29/2023Walter S. WoltoszDirectorSell20,000$42.81$856,200.003,895,739View SEC Filing Icon  
3/2/2023John Anthony DiBella, IIInsiderSell16,352$38.34$626,935.6844,840View SEC Filing Icon  
2/24/2023Walter S. WoltoszDirectorSell20,000$38.04$760,800.003,915,739View SEC Filing Icon  
1/30/2023Walter S. WoltoszDirectorSell2,258$39.74$89,732.923,935,010View SEC Filing Icon  
1/27/2023Walter S. WoltoszDirectorSell17,742$39.70$704,357.403,937,268View SEC Filing Icon  
12/28/2022Walter S. WoltoszDirectorSell20,000$36.15$723,000.003,955,010View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for Simulations Plus (NASDAQ:SLP)

78.08% of Simulations Plus stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at SLP by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Simulations Plus Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
11/25/2025Connors Investor Services Inc.21,570$0.33M0.0%+59.8%0.107%Search for SEC Filing on Google Icon
11/17/2025Connective Capital Management LLC25,240$0.38M0.3%N/A0.125%Search for SEC Filing on Google Icon
11/17/2025PharVision Advisers LLC10,313$0.16M0.1%N/A0.051%Search for SEC Filing on Google Icon
11/17/2025Verition Fund Management LLC32,073$0.48M0.0%N/A0.159%Search for SEC Filing on Google Icon
11/17/2025Quarry LP1,862$28K0.0%N/A0.009%Search for SEC Filing on Google Icon
11/17/2025Numerai GP LLC55,311$0.83M0.1%N/A0.275%Search for SEC Filing on Google Icon
11/17/2025Millennium Management LLC306,020$4.61M0.0%-44.8%1.520%Search for SEC Filing on Google Icon
11/17/2025First Light Asset Management LLC767,760$11.57M1.1%+115.0%3.815%Search for SEC Filing on Google Icon
11/17/2025Brevan Howard Capital Management LP34,643$0.52M0.0%N/A0.172%Search for SEC Filing on Google Icon
11/17/2025Crawford Investment Counsel Inc.37,990$0.57M0.0%-6.1%0.189%Search for SEC Filing on Google Icon
11/17/2025Bank of America Corp DE369,585$5.57M0.0%+76.7%1.836%Search for SEC Filing on Google Icon
11/17/2025Aquatic Capital Management LLC27,234$0.41M0.0%+698.4%0.135%Search for SEC Filing on Google Icon
11/17/2025Ameriprise Financial Inc.722,336$10.89M0.0%-17.5%3.589%Search for SEC Filing on Google Icon
11/14/2025Schonfeld Strategic Advisors LLC11,480$0.17M0.0%N/A0.057%Search for SEC Filing on Google Icon
11/14/2025Brooklyn Investment Group28,663$0.43M0.0%+8,801.6%0.142%Search for SEC Filing on Google Icon
11/14/2025Two Sigma Investments LP90,725$1.37M0.0%N/A0.451%Search for SEC Filing on Google Icon
11/14/2025Squarepoint Ops LLC220,103$3.32M0.0%+522.1%1.094%Search for SEC Filing on Google Icon
11/14/2025Comerica Bank4,231$64K0.0%-96.1%0.021%Search for SEC Filing on Google Icon
11/13/2025Kennedy Capital Management LLC370,185$5.58M0.1%-3.7%1.839%Search for SEC Filing on Google Icon
11/13/2025Sei Investments Co.22,688$0.34M0.0%+21.7%0.113%Search for SEC Filing on Google Icon
11/13/2025UBS Group AG241,584$3.64M0.0%+61.9%1.200%Search for SEC Filing on Google Icon
11/13/2025BNP Paribas Financial Markets14,321$0.22M0.0%+476.3%0.071%Search for SEC Filing on Google Icon
11/13/2025Legal & General Group Plc1,849$28K0.0%-95.7%0.009%Search for SEC Filing on Google Icon
11/13/2025Russell Investments Group Ltd.2,001$30K0.0%-98.2%0.010%Search for SEC Filing on Google Icon
11/13/2025Navalign LLC35,006$0.53M0.1%+128.7%0.174%Search for SEC Filing on Google Icon
11/13/2025Natixis Advisors LLC22,036$0.33M0.0%N/A0.109%Search for SEC Filing on Google Icon
11/13/2025First Trust Advisors LP11,056$0.17M0.0%N/A0.055%Search for SEC Filing on Google Icon
11/12/2025Dimensional Fund Advisors LP410,852$6.19M0.0%-15.4%2.041%Search for SEC Filing on Google Icon
11/12/2025First Eagle Investment Management LLC22,880$0.35M0.0%N/A0.114%Search for SEC Filing on Google Icon
11/12/2025Royce & Associates LP348,758$5.26M0.1%+31.6%1.733%Search for SEC Filing on Google Icon
11/12/2025Quantbot Technologies LP59,446$0.90M0.0%+5,944,500.0%0.295%Search for SEC Filing on Google Icon
11/12/2025US Bancorp DE6,167$93K0.0%+32.5%0.031%Search for SEC Filing on Google Icon
11/7/2025First National Bank of Omaha17,779$0.27M0.0%N/A0.088%Search for SEC Filing on Google Icon
11/7/2025GSA Capital Partners LLP23,263$0.35M0.0%N/A0.116%Search for SEC Filing on Google Icon
11/7/2025Vanguard Group Inc.974,484$14.69M0.0%-17.1%4.842%Search for SEC Filing on Google Icon
11/7/2025JPMorgan Chase & Co.167,646$2.53M0.0%+154.7%0.833%Search for SEC Filing on Google Icon
11/7/2025Herald Investment Management Ltd200,000$3.02M0.4%N/A0.994%Search for SEC Filing on Google Icon
11/6/2025Wedbush Securities Inc.10,048$0.15M0.0%-14.7%0.050%Search for SEC Filing on Google Icon
11/6/2025Skylands Capital LLC31,300$0.47M0.1%-26.5%0.156%Search for SEC Filing on Google Icon
11/6/2025Rhumbline Advisers57,143$0.86M0.0%-23.1%0.284%Search for SEC Filing on Google Icon
11/5/2025Azzad Asset Management Inc. ADV27,686$0.42M0.0%+24.3%0.138%Search for SEC Filing on Google Icon
11/5/2025Envestnet Asset Management Inc.193,869$2.92M0.0%+20.6%0.963%Search for SEC Filing on Google Icon
11/4/2025Illumine Investment Management LLC31,408$0.47M0.3%+25.7%0.156%Search for SEC Filing on Google Icon
11/4/2025State of Wyoming9,023$0.14M0.0%N/A0.045%Search for SEC Filing on Google Icon
11/4/2025Principal Financial Group Inc.32,399$0.49M0.0%-64.4%0.161%Search for SEC Filing on Google Icon
11/3/2025AlphaQuest LLC11,238$0.17M0.0%+182.6%0.056%Search for SEC Filing on Google Icon
11/3/2025Federated Hermes Inc.126,742$1.91M0.0%+90.7%0.630%Search for SEC Filing on Google Icon
10/31/2025Kornitzer Capital Management Inc. KS51,000$0.77M0.0%+121.7%0.253%Search for SEC Filing on Google Icon
10/28/2025Stephens Investment Management Group LLC392,840$5.92M0.1%+46.3%1.952%Search for SEC Filing on Google Icon
10/23/2025Tributary Capital Management LLC1,136,980$17.13M0.8%+214.7%5.648%Search for SEC Filing on Google Icon
10/22/2025North Star Investment Management Corp.168,130$2.53M0.2%+195.6%0.835%Search for SEC Filing on Google Icon
10/22/2025Hennion & Walsh Asset Management Inc.28,756$0.43M0.0%-3.8%0.143%Search for SEC Filing on Google Icon
10/21/2025Values First Advisors Inc.56,458$0.85M0.5%-1.6%0.281%Search for SEC Filing on Google Icon
10/16/2025Rice Hall James & Associates LLC66,086$1M0.1%-32.3%0.328%Search for SEC Filing on Google Icon
10/15/2025CWM LLC2,106$32K0.0%+3,729.1%0.010%Search for SEC Filing on Google Icon
10/14/2025Farther Finance Advisors LLC2,630$40K0.0%N/A0.013%Search for SEC Filing on Google Icon
10/14/2025Kopion Asset Management LLC185,394$2.79M1.8%+18.5%0.921%Search for SEC Filing on Google Icon
9/4/2025Osaic Holdings Inc.15,682$0.27M0.0%+11,780.3%0.078%Search for SEC Filing on Google Icon
8/27/2025Squarepoint Ops LLC35,378$0.62M0.0%+171.6%0.176%Search for SEC Filing on Google Icon
8/19/2025Ranger Investment Management L.P.386,185$6.74M0.5%-44.4%1.918%Search for SEC Filing on Google Icon
8/16/2025Public Sector Pension Investment Board55,402$0.97M0.0%+7.4%0.275%Search for SEC Filing on Google Icon
8/15/2025CANADA LIFE ASSURANCE Co22,986$0.40M0.0%+9.8%0.114%Search for SEC Filing on Google Icon
8/15/2025State of Tennessee Department of Treasury11,191$0.20M0.0%+182.9%0.056%Search for SEC Filing on Google Icon
8/15/2025BNP Paribas Financial Markets2,485$43K0.0%-94.2%0.012%Search for SEC Filing on Google Icon
8/15/2025Bank of America Corp DE209,218$3.65M0.0%+3.3%1.039%Search for SEC Filing on Google Icon
8/15/2025Ameriprise Financial Inc.875,447$15.28M0.0%+25.3%4.349%Search for SEC Filing on Google Icon
8/14/2025First Light Asset Management LLC357,157$6.23M0.8%N/A1.775%Search for SEC Filing on Google Icon
8/14/2025Jane Street Group LLC31,445$0.55M0.0%-41.8%0.156%Search for SEC Filing on Google Icon
8/14/2025Raymond James Financial Inc.1,458$25K0.0%N/A0.007%Search for SEC Filing on Google Icon
8/14/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.16,674$0.29M0.0%+75.6%0.083%Search for SEC Filing on Google Icon
8/14/2025Sei Investments Co.18,648$0.33M0.0%+57.6%0.093%Search for SEC Filing on Google Icon
8/14/2025Nebula Research & Development LLC24,664$0.43M0.0%+100.6%0.123%Search for SEC Filing on Google Icon
8/14/2025Cerity Partners LLC15,926$0.28M0.0%N/A0.079%Search for SEC Filing on Google Icon
8/14/2025Federated Hermes Inc.66,459$1.16M0.0%+493.4%0.330%Search for SEC Filing on Google Icon
8/13/2025Marshall Wace LLP133,278$2.33M0.0%+435.9%0.662%Search for SEC Filing on Google Icon
8/13/2025Kennedy Capital Management LLC384,451$6.71M0.2%-18.1%1.910%Search for SEC Filing on Google Icon
8/13/2025Invesco Ltd.36,452$0.64M0.0%+3.8%0.181%Search for SEC Filing on Google Icon
8/13/2025Russell Investments Group Ltd.111,290$1.94M0.0%-50.3%0.553%Search for SEC Filing on Google Icon
8/12/2025XTX Topco Ltd19,706$0.34M0.0%+41.3%0.098%Search for SEC Filing on Google Icon
8/12/2025Prudential Financial Inc.17,213$0.30M0.0%+5.7%0.086%Search for SEC Filing on Google Icon
8/12/2025Rhumbline Advisers74,325$1.30M0.0%+12.2%0.369%Search for SEC Filing on Google Icon
8/12/2025Legal & General Group Plc42,678$0.75M0.0%-5.1%0.212%Search for SEC Filing on Google Icon
8/12/2025JPMorgan Chase & Co.65,824$1.15M0.0%-28.5%0.327%Search for SEC Filing on Google Icon
8/12/2025Dynamic Technology Lab Private Ltd16,541$0.29M0.0%+58.8%0.082%Search for SEC Filing on Google Icon
8/8/2025Creative Planning11,575$0.20M0.0%-11.3%0.058%Search for SEC Filing on Google Icon
8/8/2025SG Americas Securities LLC19,677$0.34M0.0%+9.9%0.098%Search for SEC Filing on Google Icon
8/8/2025Fiera Capital Corp18,869$0.33M0.0%-19.7%0.094%Search for SEC Filing on Google Icon
8/8/2025Geode Capital Management LLC397,851$6.94M0.0%+3.1%1.977%Search for SEC Filing on Google Icon
8/7/2025Prescott Group Capital Management L.L.C.80,000$1.40M0.2%N/A0.397%Search for SEC Filing on Google Icon
8/7/2025Campbell & CO Investment Adviser LLC13,581$0.24M0.0%N/A0.067%Search for SEC Filing on Google Icon
8/6/2025Wedbush Securities Inc.11,778$0.21M0.0%-16.4%0.059%Search for SEC Filing on Google Icon
8/5/2025Nicholas Company Inc.183,858$3.21M0.1%+4.8%0.913%Search for SEC Filing on Google Icon
8/5/2025Versor Investments LP28,400$0.50M0.1%N/A0.141%Search for SEC Filing on Google Icon
8/5/2025Navalign LLC15,306$0.27M0.1%N/A0.076%Search for SEC Filing on Google Icon
8/1/2025Envestnet Asset Management Inc.160,752$2.81M0.0%+95.4%0.799%Search for SEC Filing on Google Icon
7/31/2025AlphaQuest LLC3,976$69K0.0%N/A0.020%Search for SEC Filing on Google Icon
7/30/2025Connors Investor Services Inc.13,500$0.24M0.0%+37.3%0.067%Search for SEC Filing on Google Icon
7/30/2025Tributary Capital Management LLC361,276$6.30M0.6%-7.3%1.795%Search for SEC Filing on Google Icon
7/30/2025Stephens Investment Management Group LLC268,576$4.69M0.1%N/A1.334%Search for SEC Filing on Google Icon
7/30/2025Conestoga Capital Advisors LLC1,282,143$22.37M0.3%-50.9%6.370%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Simulations Plus logo
Simulations Plus, Inc. develops drug discovery and development software for modeling and simulation, and prediction of molecular properties utilizing artificial intelligence and machine learning based technology worldwide. The company operates through two segments, Software and Services. It offers GastroPlus, which simulates the absorption and drug interaction of compounds administered to humans and animals; and DDDPlus and MembranePlus simulation products. The company also provides products based on mechanistic and mathematical models, such as DILIsym, NAFLDsym, ILDsym, RENAsym, IPFsym, and MITOsym products. In addition, it offers Absorption, Distribution, Metabolism, Excretion, and Toxicity Predictor for chemistry-based computer program that takes molecular structures as inputs and predicts their properties; and MedChem Designer, as well as MonolixSuite products for modeling and simulation that allows for population analyses, rapid clinical trial data analyses, and regulatory submissions. Further, the company provides clinical-pharmacology-based consulting services, which includes population pharmacokinetic and pharmacodynamic modeling, exposure-response analyses, clinical trial simulations, data programming, and technical writing services in support of regulatory submissions; and early drug discovery services. Additionally, it offers creative and insightful consulting services to support its quantitative systems pharmacology/quantitative systems toxicology modelling. The company serves pharmaceutical, biotechnology, agrochemical, cosmetics, and food industry companies, as well as academic and regulatory agencies. Simulations Plus, Inc. was incorporated in 1996 and is headquartered in Lancaster, California.
Read More on Simulations Plus

Today's Range

Now: $20.49
Low: $20.17
High: $20.77

50 Day Range

MA: $16.84
Low: $14.75
High: $20.49

52 Week Range

Now: $20.49
Low: $12.39
High: $37.67

Volume

390,474 shs

Average Volume

449,767 shs

Market Capitalization

$412.87 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

1.16

Who are the company insiders with the largest holdings of Simulations Plus?

Simulations Plus' top insider shareholders include:
  1. Walter S Woltosz (Director)
  2. John Anthony Dibella II (Insider)
  3. Daniel L Weiner (Director)
  4. Lisa Lavange (Director)
  5. John Kenneth Paglia (Director)
Learn More about top insider investors at Simulations Plus.

Who are the major institutional investors of Simulations Plus?

Simulations Plus' top institutional investors include:
  1. Tributary Capital Management LLC — 5.65%
  2. Vanguard Group Inc. — 4.84%
  3. First Light Asset Management LLC — 3.81%
  4. Ameriprise Financial Inc. — 3.59%
  5. Dimensional Fund Advisors LP — 2.04%
  6. Stephens Investment Management Group LLC — 1.95%
Learn More about top institutional investors of Simulations Plus stock.

Which major investors are selling Simulations Plus stock?

In the previous quarter, SLP stock was sold by these institutional investors:
  1. Millennium Management LLC
  2. Vanguard Group Inc.
  3. Ameriprise Financial Inc.
  4. Russell Investments Group Ltd.
  5. Comerica Bank
  6. Dimensional Fund Advisors LP
  7. Principal Financial Group Inc.
  8. Legal & General Group Plc

Which major investors are buying Simulations Plus stock?

During the previous quarter, SLP stock was bought by institutional investors including:
  1. Tributary Capital Management LLC
  2. First Light Asset Management LLC
  3. Herald Investment Management Ltd
  4. Squarepoint Ops LLC
  5. Bank of America Corp DE
  6. Stephens Investment Management Group LLC
  7. North Star Investment Management Corp.
  8. JPMorgan Chase & Co.