Simulations Plus, Inc.
US ˙ NasdaqGS ˙ US8292141053

SecuritySLP / Simulations Plus, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership293,940 shares
Latest Disclosed Value $ 3,474,000
Dimensional Fund Advisors Lp reports 15.59% decrease in ownership of SLP / Simulations Plus, Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 293,940 shares of Simulations Plus, Inc. (US:SLP) valued at $3,474,371 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 348,234 shares of Simulations Plus, Inc.. This represents a change in shares of -15.59% during the quarter. The current value of the position is $4,753,010 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-07 2026-03-31 13F SIMULATIONS PLUS COM 829214105 293,940 -54,294 -15.59 3,474 -45.27 0.0002
2026-02-12 2025-12-31 13F SIMULATIONS PLUS COM 829214105 348,234 -62,618 -15.24 6,348 2.54 0.0013
2025-11-12 2025-09-30 13F SIMULATIONS PLUS COM 829214105 410,852 -74,552 -15.36 6,191 -26.90 0.0013
2025-08-12 2025-06-30 13F SIMULATIONS PLUS COM 829214105 485,404 9,870 2.08 8,470 -27.36 0.0020
2025-05-13 2025-03-31 13F SIMULATIONS PLUS COM 829214105 475,534 56,293 13.43 11,660 -0.28 0.0029
2025-02-13 2024-12-31 13F SIMULATIONS PLUS COM 829214105 419,241 24,266 6.14 11,693 -7.54 0.0028
2024-11-07 2024-09-30 13F SIMULATIONS PLUS COM 829214105 394,975 -19,030 -4.60 12,647 -37.17 0.0031
2024-08-09 2024-06-30 13F SIMULATIONS PLUS COM 829214105 414,005 37,992 10.10 20,128 30.09 0.0053
2024-05-10 2024-03-31 13F SIMULATIONS PLUS COM 829214105 376,013 12,689 3.49 15,473 -4.84 0.0042
2024-02-07 2023-12-31 13F SIMULATIONS PLUS COM 829214105 363,324 28,046 8.36 16,259 16.30 0.0047
2023-11-09 2023-09-30 13F SIMULATIONS PLUS COM 829214105 335,278 19,471 6.17 13,981 2.17 0.0046
2023-08-09 2023-06-30 13F SIMULATIONS PLUS COM 829214105 315,807 31,410 11.04 13,684 9.50 0.0044
2023-05-12 2023-03-31 13F SIMULATIONS PLUS COM 829214105 284,397 -13,116 -4.41 12,496 124,860.00 0.0042
2023-02-09 2022-12-31 13F SIMULATIONS PLUS COM 829214105 297,513 44,914 17.78 11 -99.92 0.0032
2022-11-10 2022-09-30 13F SIMULATIONS PLUS COM 829214105 252,599 56,362 28.72 12,261 26.66 0.0047
2022-08-12 2022-06-30 13F SIMULATIONS PLUS COM 829214105 196,237 36,469 22.83 9,680 18.86 0.0035
2022-05-13 2022-03-31 13F SIMULATIONS PLUS COM 829214105 159,768 79,452 98.92 8,144 114.37 0.0025
2022-02-09 2021-12-31 13F SIMULATIONS PLUS COM 829214105 80,316 39,472 96.64 3,799 135.52 0.0011
2021-11-12 2021-09-30 13F SIMULATIONS PLUS COM 829214105 40,844 -1,095 -2.61 1,613 -29.96 0.0005
2021-08-12 2021-06-30 13F SIMULATIONS PLUS COM 829214105 41,939 -172,686 -80.46 2,303 -83.03 0.0007
2021-05-14 2021-03-31 13F SIMULATIONS PLUS COM 829214105 214,625 -272,918 -55.98 13,569 -61.30 0.0045
2021-03-08 2020-12-31 13F/A-2 SIMULATIONS PLUS COM 829214105 487,543 -94,042 -16.17 35,064 -20.00 0.0127
2021-02-11 2020-12-31 13F SIMULATIONS PLUS COM 829214105 487,543 -94,042 35,064 12,663.2530
2020-11-12 2020-09-30 13F SIMULATIONS PLUS COM 829214105 581,585 -4,502 -0.77 43,828 25.01 0.0186
2020-08-13 2020-06-30 13F SIMULATIONS PLUS COM 829214105 586,087 -9,814 -1.65 35,059 68.48 0.0154
2020-05-14 2020-03-31 13F SIMULATIONS PLUS COM 829214105 595,901 -24,901 -4.01 20,809 15.30 0.0108
2020-02-14 2019-12-31 13F SIMULATIONS PLUS COM 829214105 620,802 -2,600 -0.42 18,048 -16.57 0.0066
2019-11-12 2019-09-30 13F SIMULATIONS PLUS COM 829214105 623,402 13,099 2.15 21,632 24.11 0.0084
2019-08-13 2019-06-30 13F SIMULATIONS PLUS COM 829214105 610,303 3,382 0.56 17,430 36.04 0.0068
2019-08-12 2019-03-31 13F/A-2 SIMULATIONS PLUS COM 829214105 606,921 35,056 6.13 12,812 12.58 0.0051
2019-05-10 2019-03-31 13F SIMULATIONS PLUS COM 829214105 606,921 35,056 12,812
2019-02-26 2018-12-31 13F/A-1 SIMULATIONS PLUS COM 829214105 571,865 25,871 4.74 11,380 3.18 0.0052
2019-02-13 2018-12-31 13F SIMULATIONS PLUS COM 829214105 571,865 25,871 11,380
2018-11-13 2018-09-30 13F SIMULATIONS PLUS COM 829214105 545,994 39,930 7.89 11,029 -2.05 0.0042
2018-08-10 2018-06-30 13F SIMULATIONS PLUS COM 829214105 506,064 30,848 6.49 11,260 60.65 0.0045
2018-05-11 2018-03-31 13F SIMULATIONS PLUS COM 829214105 475,216 37,811 8.64 7,009 -0.47 0.0029
2018-02-12 2017-12-31 13F SIMULATIONS PLUS COM 829214105 437,405 34,955 8.69 7,042 12.89 0.0029
2017-11-13 2017-09-30 13F SIMULATIONS PLUS COM 829214105 402,450 2,142 0.54 6,238 26.17 0.0027
2017-08-11 2017-06-30 13F SIMULATIONS PLUS COM 829214105 400,308 32,114 8.72 4,944 14.29 0.0023
2017-05-12 2017-03-31 13F SIMULATIONS PLUS COM 829214105 368,194 16,362 4.65 4,326 27.42 0.0021
2017-02-09 2016-12-31 13F SIMULATIONS PLUS COM 829214105 351,832 13,131 3.88 3,395 13.66 0.0017
2016-11-10 2016-09-30 13F SIMULATIONS PLUS COM 829214105 338,701 -726 -0.21 2,987 16.41 0.0016
2016-08-09 2016-06-30 13F SIMULATIONS PLUS COM 829214105 339,427 19,087 5.96 2,566 -9.30 0.0015
2016-05-13 2016-03-31 13F SIMULATIONS PLUS COM 829214105 320,340 42,673 15.37 2,829 2.80 0.0017
2016-02-10 2015-12-31 13F SIMULATIONS PLUS COM 829214105 277,667 31,032 12.58 2,752 18.21 0.0017
2015-11-13 2015-09-30 13F SIMULATIONS PLUS COM 829214105 246,635 4,123 1.70 2,328 53.06 0.0015
2015-08-14 2015-06-30 13F SIMULATIONS PLUS COM 829214105 242,512 5,162 2.17 1,521 4.39 0.0009
2015-05-14 2015-03-31 13F SIMULATIONS PLUS COM 829214105 237,350 3,317 1.42 1,457 -6.78 0.0009
2015-02-06 2014-12-31 13F SIMULATIONS PLUS COM 829214105 234,033 0 0.00 1,563 -3.93 0.0010
2014-11-13 2014-09-30 13F SIMULATIONS PLUS COM 829214105 234,033 0 0.00 1,627 23.73 0.0012
2014-08-08 2014-06-30 13F SIMULATIONS PLUS COM 829214105 234,033 0 0.00 1,315 -15.65 0.0009
2014-05-14 2014-03-31 13F SIMULATIONS PLUS COM 829214105 234,033 0 0.00 1,559 31.90 0.0012
2014-02-12 2013-12-31 13F SIMULATIONS PLUS COM 829214105 234,033 0 0.00 1,182 4.97 0.0009
2013-11-13 2013-09-30 13F SIMULATIONS PLUS COM 829214105 234,033 -4,467 -1.87 1,126 13.17 0.0010
2013-08-15 2013-06-30 13F SIMULATIONS PLUS COM 829214105 238,500 238,500 995 0.0009
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.