Simulations Plus, Inc.
Simulations Plus, Inc. (SLP) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · SLP · as of Sep 30, 2025
Ownership Breakdown
172
Institutional Holders
▲ 12 vs Q2
$235.48M
Total Inst. Value
▼ $62.03M vs Q2
20.21M
Shares Outstanding
freeFloat 82.62%
15.63M
13F Shares Held
▼ 1.43M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
SLP largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
MORGAN STANLEY services-computer integrated systems design | 1.30M | 6.45% | 6.45% | $19.55B | May 27, 2026 | ▲ 495.8K |
BLACKROCK, INC. services-computer integrated systems design | 1.22M | 6.09% | 6.09% | $18.46B | Nov 12, 2025 | ▼ 1.28M |
VANGUARD GROUP INC services-computer integrated systems design | 974.5K | 4.84% | 4.84% | $14.69B | Nov 7, 2025 | ▼ 201.5K |
FIRST LIGHT ASSET MANAGEMENT, LLC services-computer integrated systems design | 767.8K | 3.82% | 3.82% | $11.57B | Nov 14, 2025 | ▲ 410.6K |
ROCKEFELLER CAPITAL MANAGEMENT L.P. services-computer integrated systems design | 746.0K | 3.71% | 3.71% | $11.24B | Nov 14, 2025 | ▲ 366.8K |
AMERIPRISE FINANCIAL INC services-computer integrated systems design | 722.3K | 3.59% | 3.59% | $10.89B | Nov 14, 2025 | ▼ 153.1K |
TRIBUTARY CAPITAL MANAGEMENT, LLC services-computer integrated systems design | 568.5K | 2.83% | 2.83% | $8.57B | Jan 27, 2026 | ▲ 207.2K |
DIMENSIONAL FUND ADVISORS LP services-computer integrated systems design | 410.9K | 2.04% | 2.04% | $6.19B | Nov 12, 2025 | ▼ 74.6K |
STATE STREET CORP services-computer integrated systems design | 398.5K | 1.98% | 1.98% | $6.01B | Nov 14, 2025 | ▼ 275.2K |
GEODE CAPITAL MANAGEMENT, LLC services-computer integrated systems design | 394.1K | 1.96% | 1.96% | $5.94B | Nov 12, 2025 | ▼ 3.8K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
24
Increased
+3.49M shares9
New Positions
first time holders15
Decreased
−2.48M shares0
Sold Out
fully exitedNet shares change (top 50)
+1.01M
+3.49M / −2.48M
Net new holders
+18
9 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
SLP insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
5
Buy transactions
7
Sell transactions
0.71
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
DiBella John Anthony II Chief Revenue Officer | Jun 3, 2026 | Sale | 1,000 | $16.50 | $16.5K | 87.1K | Form 4 ↗ |
WOLTOSZ WALTER S
| Jun 1, 2026 | Sale | 15,000 | $17.43 | $261.4K | 3.25M | Form 4 ↗ |
Fiedler-Kelly Jill President, Services Solutions | May 11, 2026 | Sale | 1,000 | $16.53 | $16.5K | 77.8K | Form 4 ↗ |
DiBella John Anthony II Chief Revenue Officer | May 4, 2026 | Sale | 1,000 | $14.98 | $15.0K | 88.1K | Form 4 ↗ |
WOLTOSZ WALTER S
| May 4, 2026 | Sale | 15,000 | $15.13 | $226.9K | 3.27M | Form 4 ↗ |
Evans Sharlene director | May 1, 2026 | Award | 2,117 | — | — | 17.2K | Form 4 ↗ |
WOLTOSZ WALTER S
| May 1, 2026 | Award | 2,117 | — | — | 3.28M | Form 4 ↗ |
WEINER DANIEL L director | May 1, 2026 | Award | 2,117 | — | — | 16.5K | Form 4 ↗ |
Paglia John Kenneth director | May 1, 2026 | Award | 2,117 | — | — | 14.6K | Form 4 ↗ |
DiBella John Anthony II Chief Revenue Officer | Apr 15, 2026 | Sale | 1,000 | $13.37 | $13.4K | 89.1K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Simulations Plus, Inc. (SLP) is primarily owned by institutional investors, who hold approximately 77.3% of total shares outstanding. Company insiders own approximately 17.38%, while retail and public investors account for the remaining 5.28%.
The largest institutional shareholder of Simulations Plus, Inc. is MORGAN STANLEY, holding approximately 1.30 million shares — equal to 6.45% of outstanding shares — as of September 30, 2025.
A total of 172 institutional investors currently hold SLP stock, with a combined institutional value of approximately $235,475,006 as of the most recent 13F filing period.
Frequently asked questions
SLP ownershipSimulations Plus, Inc. (SLP) is primarily owned by institutional investors, who hold approximately 77.3% of shares. The largest shareholder is MORGAN STANLEY with a 6.45% stake. Company insiders hold 17.38%. Data sourced from SEC Form 13F as of September 30, 2025.