Simulations Plus, Inc.
US ˙ NasdaqGS ˙ US8292141053

SecuritySLP / Simulations Plus, Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership212,897 shares
Latest Disclosed Value $ 2,516,443
Northern Trust Corp reports 13.54% increase in ownership of SLP / Simulations Plus, Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 212,897 shares of Simulations Plus, Inc. (US:SLP) valued at $2,516,443 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 187,514 shares of Simulations Plus, Inc.. This represents a change in shares of 13.54% during the quarter. The current value of the position is $3,544,735 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)
2026-05-14 2026-03-31 13F SIMULATIONS PLUS COM 829214105 212,897 25,383 13.54 2,516 -26.39 0.0001
2026-02-17 2025-12-31 13F SIMULATIONS PLUS COM 829214105 187,514 -20,227 -9.74 3,418 9.20 0.0001
2025-11-14 2025-09-30 13F SIMULATIONS PLUS COM 829214105 207,741 -41,887 -16.78 3,131 -28.15 0.0001
2025-08-13 2025-06-30 13F SIMULATIONS PLUS COM 829214105 249,628 11,416 4.79 4,356 -25.41 0.0006
2025-05-13 2025-03-31 13F SIMULATIONS PLUS COM 829214105 238,212 1,839 0.78 5,841 -11.41 0.0009
2025-02-14 2024-12-31 13F SIMULATIONS PLUS COM 829214105 236,373 21,453 9.98 6,592 -4.20 0.0009
2024-11-13 2024-09-30 13F SIMULATIONS PLUS COM 829214105 214,920 -1,570 -0.73 6,882 -34.62 0.0011
2024-08-14 2024-06-30 13F SIMULATIONS PLUS COM 829214105 216,490 -7,701 -3.44 10,526 14.09 0.0018
2024-05-14 2024-03-31 13F SIMULATIONS PLUS COM 829214105 224,191 36,447 19.41 9,225 9.81 0.0016
2024-02-13 2023-12-31 13F SIMULATIONS PLUS COM 829214105 187,744 -5,703 -2.95 8,402 4.15 0.0015
2023-11-13 2023-09-30 13F SIMULATIONS PLUS COM 829214105 193,447 1,210 0.63 8,067 -3.16 0.0016
2023-08-11 2023-06-30 13F SIMULATIONS PLUS COM 829214105 192,237 12,466 6.93 8,330 5.44 0.0016
2023-05-15 2023-03-31 13F SIMULATIONS PLUS COM 829214105 179,771 5,701 3.28 7,899 24.10 0.0016
2023-02-13 2022-12-31 13F SIMULATIONS PLUS COM 829214105 174,070 4,996 2.95 6,366 -22.43 0.0013
2022-11-14 2022-09-30 13F SIMULATIONS PLUS COM 829214105 169,074 -1,510 -0.89 8,206 -2.48 0.0019
2022-08-12 2022-06-30 13F SIMULATIONS PLUS COM 829214105 170,584 -1,413 -0.82 8,415 -4.03 0.0018
2022-05-13 2022-03-31 13F SIMULATIONS PLUS COM 829214105 171,997 -3,475 -1.98 8,768 5.64 0.0015
2022-02-08 2021-12-31 13F SIMULATIONS PLUS COM 829214105 175,472 -2,630 -1.48 8,300 17.96 0.0014
2021-11-15 2021-09-30 13F SIMULATIONS PLUS COM 829214105 178,102 -108,605 -37.88 7,036 -55.30 0.0012
2021-08-13 2021-06-30 13F SIMULATIONS PLUS COM 829214105 286,707 2,240 0.79 15,742 -12.49 0.0028
2021-05-12 2021-03-31 13F SIMULATIONS PLUS COM 829214105 284,467 81,752 40.33 17,989 23.39 0.0033
2021-02-11 2020-12-31 13F SIMULATIONS PLUS COM 829214105 202,715 -7,460 -3.55 14,579 -7.96 0.0028
2020-11-16 2020-09-30 13F SIMULATIONS PLUS COM 829214105 210,175 16,909 8.75 15,839 37.00 0.0035
2020-08-14 2020-06-30 13F SIMULATIONS PLUS COM 829214105 193,266 11,433 6.29 11,561 82.06 0.0027
2020-05-14 2020-03-31 13F SIMULATIONS PLUS COM 829214105 181,833 9,225 5.34 6,350 26.54 0.0018
2020-02-14 2019-12-31 13F SIMULATIONS PLUS COM 829214105 172,608 -985 -0.57 5,018 -16.69 0.0011
2019-11-13 2019-09-30 13F SIMULATIONS PLUS COM 829214105 173,593 5,587 3.33 6,023 25.53 0.0014
2019-08-13 2019-06-30 13F SIMULATIONS PLUS COM 829214105 168,006 2,603 1.57 4,798 37.44 0.0011
2019-05-13 2019-03-31 13F SIMULATIONS PLUS COM 829214105 165,403 2,062 1.26 3,491 7.38 0.0009
2019-02-12 2018-12-31 13F SIMULATIONS PLUS COM 829214105 163,341 -4,724 -2.81 3,251 -4.24 0.0009
2018-11-14 2018-09-30 13F SIMULATIONS PLUS COM 829214105 168,065 19,329 13.00 3,395 2.57 0.0008
2018-09-18 2018-06-30 13F/A-1 SIMULATIONS PLUS COM 829214105 148,736 555 0.37 3,310 51.49 0.0008
2018-08-14 2018-06-30 13F SIMULATIONS PLUS COM 829214105 148,736 555 3,310
2018-05-09 2018-03-31 13F SIMULATIONS PLUS COM 829214105 148,181 1,885 1.29 2,185 -7.26 0.0006
2018-02-14 2017-12-31 13F SIMULATIONS PLUS COM 829214105 146,296 -628 -0.43 2,356 3.47 0.0006
2017-11-13 2017-09-30 13F SIMULATIONS PLUS COM 829214105 146,924 1,906 1.31 2,277 27.14 0.0006
2017-08-11 2017-06-30 13F SIMULATIONS PLUS COM 829214105 145,018 103,435 248.74 1,791 267.01 0.0005
2017-05-12 2017-03-31 13F SIMULATIONS PLUS COM 829214105 41,583 636 1.55 488 23.54 0.0001
2017-02-13 2016-12-31 13F SIMULATIONS PLUS COM 829214105 40,947 2,843 7.46 395 17.56 0.0001
2016-11-09 2016-09-30 13F SIMULATIONS PLUS COM 829214105 38,104 1,199 3.25 336 20.43 0.0001
2016-08-12 2016-06-30 13F SIMULATIONS PLUS COM 829214105 36,905 199 0.54 279 -13.89 0.0001
2016-08-19 2016-03-31 13F/A-1 SIMULATIONS PLUS COM 829214105 36,706 4,725 14.77 324 2.21 0.0001
2016-05-13 2016-03-31 13F SIMULATIONS PLUS COM 829214105 36,706 324
2016-02-12 2015-12-31 13F SIMULATIONS PLUS COM 829214105 31,981 3,116 10.80 317 16.12 0.0001
2015-11-12 2015-09-30 13F SIMULATIONS PLUS COM 829214105 28,865 28,865 273 0.0001
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.