Simulations Plus, Inc. (SLP) Insider Trading
Over the last 3 months, SLP insiders made 0 open-market buys and 6 sales, a net sale of -$550K (SEC Form 4). Over the last 6 months, 137 institutions increased and 104 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
6
Net (3m)
-$549.8K
Insider trades by month Buys Sells
Sep
Oct
Dec
Apr
May
Jun
Context3-month price +30.9%Institutions mixed (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jun 4, 2026 | DiBella John Anthony IIofficer: Chief Revenue Officer | Sell | 1,000 | $16.50 |
| Jun 2, 2026 | WOLTOSZ WALTER Sdirector, 10 percent owner: | Sell | 15,000 | $17.43 |
| May 13, 2026 | Fiedler-Kelly Jillofficer: President, Services Solutions | Sell | 1,000 | $16.53 |
| May 13, 2026 | Fiedler-Kelly Jillofficer: President, Services Solutions | Option | 1,000 | $10.05 |
| May 5, 2026 | WOLTOSZ WALTER Sdirector, 10 percent owner: | Sell | 15,000 | $15.13 |
| May 5, 2026 | DiBella John Anthony IIofficer: Chief Revenue Officer | Sell | 1,000 | $14.98 |
| May 1, 2026 | Evans Sharlenedirector | Grant | 2,117 | — |
| May 1, 2026 | WOLTOSZ WALTER Sdirector, 10 percent owner: | Grant | 2,117 | — |
| May 1, 2026 | WEINER DANIEL Ldirector | Grant | 2,117 | — |
| May 1, 2026 | Paglia John Kennethdirector | Grant | 2,117 | — |
| Apr 16, 2026 | DiBella John Anthony IIofficer: Chief Revenue Officer | Sell | 1,000 | $13.37 |
| Feb 9, 2026 | DiBella John Anthony IIofficer: Chief Revenue Officer | Option | 10,300 | $9.71 |
| Feb 2, 2026 | Paglia John Kennethdirector | Grant | 1,776 | — |
| Feb 2, 2026 | WEINER DANIEL Ldirector | Grant | 1,776 | — |
| Feb 2, 2026 | Evans Sharlenedirector | Grant | 1,776 | — |
| Feb 2, 2026 | WOLTOSZ WALTER Sdirector, 10 percent owner: | Grant | 1,776 | — |
| Jan 29, 2026 | Fiedler-Kelly Jillofficer: President, Services Solutions | Option | 8,950 | $9.71 |
| Dec 2, 2025 | LaVange Lisadirector | Sell | 866 | $16.91 |
| Nov 4, 2025 | Evans Sharlenedirector | Grant | 1,771 | — |
| Nov 4, 2025 | Paglia John Kennethdirector | Grant | 1,771 | — |
| Nov 4, 2025 | WEINER DANIEL Ldirector | Grant | 1,771 | — |
| Nov 4, 2025 | WOLTOSZ WALTER Sdirector, 10 percent owner: | Grant | 1,771 | — |
| Nov 4, 2025 | LaVange Lisadirector | Grant | 1,771 | — |
| Oct 17, 2025 | DiBella John Anthony IIofficer: Chief Revenue Officer | Grant | 27,500 | $16.02 |
| Oct 17, 2025 | Fiedler-Kelly Jillofficer: President, Services Solutions | Grant | 27,500 | $16.02 |
| Oct 17, 2025 | FREDERICK WILLIAM Wofficer: EVP/CFO | Grant | 32,500 | $16.02 |
| Oct 17, 2025 | OCONNOR SHAWNofficer: Chief Executive Officer | Grant | 50,000 | $16.02 |
| Oct 3, 2025 | WOLTOSZ WALTER Sdirector, 10 percent owner: | Sell | 20,000 | $15.39 |
| Sep 4, 2025 | LaVange Lisadirector | Sell | 867 | $14.10 |
| Aug 4, 2025 | Evans Sharlenedirector | Grant | 2,074 | — |
Source: SLP SEC Form 4 filings, latest Jun 4, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their SLP positions over the last 6 months (SEC Form 13F).
Increased
137
New positions
50
Reduced
104
Sold out
62
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| FIRST LIGHT ASSET MANAGEMENT, LLC | Increased | 2.6M | May 15, 2026 |
| FIRST LIGHT ASSET MANAGEMENT, LLC | Increased | 2.0M | Feb 17, 2026 |
| BLACKROCK, INC. | Increased | 1.3M | Feb 12, 2026 |
| BLACKROCK, INC. | Reduced | 1.3M | May 13, 2026 |
| VANGUARD GROUP INC | Increased | 1.0M | Jan 29, 2026 |
| MORGAN STANLEY | Reduced | 1.0M | Feb 13, 2026 |
| MORGAN STANLEY | Reduced | 888K | May 15, 2026 |
| FIRST EAGLE INVESTMENT MANAGEMENT, LLC | Increased | 742K | May 14, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 740K | May 15, 2026 |
| MARSHALL WACE, LLP | Increased | 633K | May 15, 2026 |
| ROCKEFELLER CAPITAL MANAGEMENT L.P. | Increased | 588K | May 14, 2026 |
| MARSHALL WACE, LLP | Increased | 570K | Feb 13, 2026 |
| TRIBUTARY CAPITAL MANAGEMENT, LLC | Increased | 568K | Jan 27, 2026 |
| ROCKEFELLER CAPITAL MANAGEMENT L.P. | Reduced | 558K | Mar 17, 2026 |
| TRIBUTARY CAPITAL MANAGEMENT, LLC | Increased | 548K | May 4, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.