Simulations Plus, Inc.
SLP · Services-Computer Integrated Systems Design · 20.2M shares · +3%/yr ↑ dilution · EDGAR filings ↗
Net buyback after stock comp: $15M (gross $20M, SBC $5M)
Reference price $18.20 · est. market cap ~$368M — last insider sale, 2026-06-16 (estimated from the dated SEC Form 4 price × shares outstanding — not a live quote)
Grade
C54Pharma-simulation software vendor with a large (likely impairment-driven) GAAP loss, but positive FCF and growth.
Strengths
- Positive FCF and growth — FCF $17.4M (50th), revenue +13.1%
- Cash-rich — current ratio 7.67 (91st)
Risks
- Large GAAP loss — operating margin -89.3%, net income -750.2% (2nd) — impairment-driven
- Negative returns — ROE -51.9%
- Acquisition-integration execution — per 10-K
Notable findings
- Exec changeRecent 8-K item 5.02 8-K ↗
- Net lossNet loss (net margin -81.7%)
- Customer concentration~100% of revenue from one customer/distributor — 33 Table of Contents Results of Operations Comparison of fiscal years ended 2025 and 2024 (in thousands) Years ended % of Revenue August 31, 2025 August 31, 2024 August 31, 2025 August 3
- Fund exitedNotable fund(s) exited this quarter: VANGUARD GROUP INC
- Notable holderHeld by 5 notable fund(s): GOLDMAN SACHS GROUP INC, STATE STREET CORP, CITADEL ADVISORS LLC +2 more (as of 2026-03-31)
- Insider sellingInsider selling — 8 open-market sale(s) by 3 insider(s) (cluster of 3 insiders, ~$700,886, last 6mo) Form 4 ↗
Quarterly revenue
Last 4 quarters · from SEC filings.
Key metrics
Gross margin
58.4%
Operating margin
-89.3%
Net margin
-81.7%
Return on equity
-51.9%
Return on assets
-49.1%
Revenue growth (QoQ)
31.9%
Net-income growth
-750.2%
Current ratio
7.7×
Free cash flow
$17M
EBITDA
-$63M
Tangible book value
$81M
Cash & investments
$32M
Stock comp / revenue
8.0%
Insider transactions · last 18 months
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| 2026-06-16 | Fiedler-Kelly Jill | Option exercise | 7.3K | $10.05 |
| 2026-06-16 | Fiedler-Kelly Jill | Sell | 7.3K | $18.20 |
| 2026-06-15 | Fiedler-Kelly Jill | Option exercise | 1.1K | $10.05 |
| 2026-06-15 | Fiedler-Kelly Jill | Sell | 1.1K | $16.51 |
| 2026-06-03 | DiBella John Anthony II | Sell | 1.0K | $16.50 |
| 2026-06-01 | WOLTOSZ WALTER S | Sell | 15K | $17.43 |
| 2026-05-11 | Fiedler-Kelly Jill | Option exercise | 1.0K | $10.05 |
| 2026-05-11 | Fiedler-Kelly Jill | Sell | 1.0K | $16.53 |
| 2026-05-04 | DiBella John Anthony II | Sell | 1.0K | $14.98 |
| 2026-05-04 | WOLTOSZ WALTER S | Sell | 15K | $15.13 |
| 2026-05-01 | Evans Sharlene | Grant | 2.1K | — |
| 2026-05-01 | Paglia John Kenneth | Grant | 2.1K | — |
| 2026-05-01 | WOLTOSZ WALTER S | Grant | 2.1K | — |
| 2026-05-01 | WEINER DANIEL L | Grant | 2.1K | — |
| 2026-04-15 | DiBella John Anthony II | Sell | 1.0K | $13.37 |
| 2026-02-06 | DiBella John Anthony II | Option exercise | 10K | $9.71 |
| 2026-01-30 | Evans Sharlene | Grant | 1.8K | — |
| 2026-01-30 | Paglia John Kenneth | Grant | 1.8K | — |
| 2026-01-30 | WOLTOSZ WALTER S | Grant | 1.8K | — |
| 2026-01-30 | WEINER DANIEL L | Grant | 1.8K | — |
| 2026-01-28 | Fiedler-Kelly Jill | Option exercise | 8.9K | $9.71 |
| 2025-12-18 | WOLTOSZ WALTER S | Gift | 9.1K | — |
| 2025-12-01 | LaVange Lisa | Sell | 866 | $16.91 |
| 2025-11-03 | Evans Sharlene | Grant | 1.8K | — |
| 2025-11-03 | LaVange Lisa | Grant | 1.8K | — |
| 2025-11-03 | Paglia John Kenneth | Grant | 1.8K | — |
| 2025-11-03 | WOLTOSZ WALTER S | Grant | 1.8K | — |
| 2025-11-03 | WEINER DANIEL L | Grant | 1.8K | — |
| 2025-10-01 | WOLTOSZ WALTER S | Sell | 20K | $15.39 |
| 2025-09-02 | LaVange Lisa | Sell | 867 | $14.10 |
| 2025-08-01 | WOLTOSZ WALTER S | Grant | 2.1K | — |
| 2025-08-01 | WEINER DANIEL L | Grant | 2.1K | — |
| 2025-08-01 | Paglia John Kenneth | Grant | 2.1K | — |
| 2025-08-01 | Evans Sharlene | Grant | 2.1K | — |
| 2025-08-01 | LaVange Lisa | Grant | 2.1K | — |
| 2025-08-01 | LaVange Lisa | Sell | 867 | $12.93 |
| 2025-07-01 | WOLTOSZ WALTER S | Sell | 7.8K | $17.94 |
| 2025-07-01 | WOLTOSZ WALTER S | Sell | 12K | $18.58 |
| 2025-06-02 | WOLTOSZ WALTER S | Sell | 16K | $26.72 |
| 2025-06-02 | WOLTOSZ WALTER S | Sell | 2.7K | $27.71 |
| 2025-06-02 | WOLTOSZ WALTER S | Sell | 700 | $29.13 |
| 2025-06-02 | WOLTOSZ WALTER S | Sell | 1.0K | $30.57 |
| 2025-06-02 | WOLTOSZ WALTER S | Sell | 100 | $31.36 |
| 2025-05-01 | WOLTOSZ WALTER S | Grant | 786 | — |
| 2025-05-01 | WOLTOSZ WALTER S | Sell | 9.4K | $33.20 |
| 2025-05-01 | WOLTOSZ WALTER S | Sell | 11K | $33.78 |
| 2025-05-01 | Evans Sharlene | Grant | 786 | — |
| 2025-05-01 | LaVange Lisa | Grant | 786 | — |
| 2025-05-01 | WEINER DANIEL L | Grant | 786 | — |
| 2025-05-01 | Paglia John Kenneth | Grant | 786 | — |
| 2025-04-01 | WOLTOSZ WALTER S | Sell | 17K | $24.01 |
| 2025-04-01 | WOLTOSZ WALTER S | Sell | 2.6K | $24.62 |
| 2025-03-03 | WOLTOSZ WALTER S | Sell | 20K | $28.68 |
| 2025-02-03 | Paglia John Kenneth | Grant | 787 | — |
| 2025-02-03 | WEINER DANIEL L | Grant | 787 | — |
| 2025-02-03 | Evans Sharlene | Grant | 787 | — |
| 2025-02-03 | LaVange Lisa | Grant | 787 | — |
| 2025-02-03 | WOLTOSZ WALTER S | Sell | 5.6K | $33.53 |
| 2025-02-03 | WOLTOSZ WALTER S | Sell | 14K | $34.06 |
| 2025-02-03 | WOLTOSZ WALTER S | Grant | 787 | — |
| 2025-01-02 | WOLTOSZ WALTER S | Sell | 20K | $27.88 |
| 2025-01-02 | WOLTOSZ WALTER S | Sell | 100 | $28.50 |
All non-derivative Form 4 activity (SEC), newest first.
Notable events (8-K)
| Date | Items | |
|---|---|---|
| 2026-06-17 | Material agreementExec/director changeExhibits | filing ↗ |
| 2026-06-16 | Reg FDExhibits | filing ↗ |
| 2026-04-09 | ResultsReg FDExhibits | filing ↗ |
| 2026-02-18 | Exec/director changeShareholder voteExhibits | filing ↗ |
| 2026-01-08 | ResultsReg FDExhibits | filing ↗ |
| 2025-12-08 | Material agreementExec/director changeExhibits | filing ↗ |
| 2025-12-01 | ResultsReg FDExhibits | filing ↗ |
| 2025-10-22 | ResultsReg FDExhibits | filing ↗ |
Recent filings
| Form | Filed | Period | Accession |
|---|---|---|---|
| 8-K | 2026-06-17 | 2026-06-15 | 0001023459-26-000024 ↗ |
| 8-K | 2026-06-16 | 2026-06-15 | 0001023459-26-000020 ↗ |
| 10-Q | 2026-04-10 | 2026-02-28 | 0001023459-26-000016 ↗ |
| 8-K | 2026-04-09 | 2026-04-09 | 0001023459-26-000013 ↗ |
| 8-K | 2026-02-18 | 2026-02-12 | 0001023459-26-000010 ↗ |
| 10-Q | 2026-01-09 | 2025-11-30 | 0001023459-26-000006 ↗ |
| 8-K | 2026-01-08 | 2026-01-08 | 0001023459-26-000003 ↗ |
| 8-K | 2025-12-08 | 2025-12-02 | 0001023459-25-000063 ↗ |
| 10-K | 2025-12-01 | 2025-08-31 | 0001023459-25-000060 ↗ |
| 8-K | 2025-12-01 | 2025-12-01 | 0001023459-25-000059 ↗ |
| 8-K | 2025-10-22 | 2025-10-22 | 0001023459-25-000051 ↗ |
| 8-K | 2025-07-15 | 2025-07-09 | 0001023459-25-000047 ↗ |