Reported relationships
Latest disclosed role at each company.
No relationships currently tracked through insider filings.
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
No balances currently tracked through insider filings.
Past disclosures · reporting ended (1)
No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.
Simulations Plus, Inc.
Report date October 06, 2026 · Filed October 06, 2026
Section 16 reporting ended · disclosed 2026-10-06. Current position is not established by this disclosure.
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 0 |
Reported balance
After 2026-10-06 transaction · row 1
Account or security details depend on footnotes; rows are not merged.
1 source rowRow 1 · 2026-10-06 · Disposition to issuer · Disposed 16,547 · Balance 0 F1: This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger, dated as of June 15, 2026 (the "Merger Agreement"), by and among Simulations Plus, Inc. (the "Issuer"), SP Evolution HoldCo II, LLC ("Parent") and SP Evolution BidCo II, LLC, a wholly owned subsidiary of Parent ("Merger Sub"), pursuant to which Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Parent. F2: At the effective time of the Merger (the "Effective Time"), each share of common stock of the Issuer ("Company Common Stock") issued and outstanding immediately prior to the Effective Time (other than certain excluded shares specified in the Merger Agreement) was automatically converted into the right to receive $18.50 in cash, without interest (the "Merger Consideration"). |
| Stock Options (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $34.23 · Expires 2029-07-18 | Direct | 0 |
Reported balance
After 2026-10-06 transaction · row 2
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 2 · 2026-10-06 · Disposition to issuer · Disposed 2,000 · Balance 0 F3: Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option. F4: Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person. |
| Stock Options (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $61.84 · Expires 2030-07-17 | Direct | 0 |
Reported balance
After 2026-10-06 transaction · row 3
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 3 · 2026-10-06 · Disposition to issuer · Disposed 5,000 · Balance 0 F3: Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option. F4: Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person. |
Filing footnotes · ownership attribution and instrument terms
F1: This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger, dated as of June 15, 2026 (the "Merger Agreement"), by and among Simulations Plus, Inc. (the "Issuer"), SP Evolution HoldCo II, LLC ("Parent") and SP Evolution BidCo II, LLC, a wholly owned subsidiary of Parent ("Merger Sub"), pursuant to which Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Parent.
F2: At the effective time of the Merger (the "Effective Time"), each share of common stock of the Issuer ("Company Common Stock") issued and outstanding immediately prior to the Effective Time (other than certain excluded shares specified in the Merger Agreement) was automatically converted into the right to receive $18.50 in cash, without interest (the "Merger Consideration").
F3: Pursuant to the Merger Agreement, effective as of or immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (each, a "Company Option") that was outstanding immediately prior to the Effective Time automatically vested and was canceled and converted into the right to receive an amount in cash, without interest, equal to (i) the number of shares of Company Common Stock subject to such Company Option immediately prior to the Effective Time multiplied by (ii) the excess, if any, of the Merger Consideration over the applicable exercise price per share of Company Common Stock subject to such Company Option.
F4: Any such Company Option with a per share exercise price that was equal to or greater than the Merger Consideration was canceled by virtue of the Merger without any payment to the reporting person.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| May 01, 2019 Filed May 1, 2019 21:10 UTC | Simulations Plus, Inc. SLP · Entity 5719 | GrantCommon Stock | 544 | $22.53 | $12,256.32 |
DisclosureSEC source: 0001683168-19-001313 · ownership.xml · nonDerivative · entry 1 WEINER DANIEL L · CIK 0001134615 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,550 F1 · balance_after: Shares granted as independent director compensation, issued from the 2017 Equity Incentive Plan. Read SEC document |
| February 11, 2019 Filed Feb 12, 2019 18:34 UTC | Simulations Plus, Inc. SLP · Entity 5719 | GrantCommon Stock | 627 | $19.52 | $12,239.04 |
DisclosureSEC source: 0001683168-19-000343 · weiner_f4.xml · nonDerivative · entry 1 WEINER DANIEL L · CIK 0001134615 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,006 F1 · balance_after: Shares granted as independent director compensation, issued from the 2017 Equity Incentive Plan. Read SEC document |
| November 01, 2018 Filed Nov 5, 2018 13:15 UTC | Simulations Plus, Inc. SLP · Entity 5719 | GrantCommon Stock | 606 | $20.21 | $12,247.26 |
DisclosureSEC source: 0001683168-18-003231 · weiner_f4.xml · nonDerivative · entry 1 WEINER DANIEL L · CIK 0001134615 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 4,379 F1 · balance_after: Shares granted as independent director compensation, issued from the 2017 Equity Incentive Plan. Read SEC document |
| August 01, 2018 Filed Aug 1, 2018 23:59 UTC | Simulations Plus, Inc. SLP · Entity 5719 | GrantCommon Stock | 690 | $17.75 | $12,247.50 |
DisclosureSEC source: 0001683168-18-002106 · ownership.xml · nonDerivative · entry 1 WEINER DANIEL L · CIK 0001134615 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 3,773 F1 · balance_after: Shares granted as independent director compensation, issued from the 2017 Equity Incentive Plan. Read SEC document |
| May 01, 2018 Filed May 3, 2018 00:16 UTC | Simulations Plus, Inc. SLP · Entity 5719 | GrantCommon Stock | 744 | $16.45 | $12,238.80 |
DisclosureSEC source: 0001683168-18-001163 · weiner_f4.xml · nonDerivative · entry 1 WEINER DANIEL L · CIK 0001134615 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 3,083 F1 · balance_after: Shares granted as independent director compensation, issued from the 2017 Equity Incentive Plan. Read SEC document |
| February 01, 2018 Filed Feb 7, 2018 22:08 UTC | Simulations Plus, Inc. SLP · Entity 5719 | GrantCommon Stock | 752 | $16.15 | $12,144.80 |
DisclosureSEC source: 0001683168-18-000345 · weiner_f4.xml · nonDerivative · entry 1 WEINER DANIEL L · CIK 0001134615 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,339 F1 · balance_after: Shares granted as independent director compensation, issued from the 2017 Equity Incentive Plan. Read SEC document |
| November 01, 2017 Filed Nov 2, 2017 20:05 UTC | Simulations Plus, Inc. SLP · Entity 5719 | GrantCommon Stock | 752 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001683168-17-002809 · weiner_frm4.xml · nonDerivative · entry 1 WEINER DANIEL L · CIK 0001134615 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 1,580 F1 · price: Shares granted as independent director compensation, issued from the 2017 Equity Incentive Plan. F1 · balance_after: Shares granted as independent director compensation, issued from the 2017 Equity Incentive Plan. Read SEC document |
| August 31, 2017 Filed Sep 5, 2017 12:18 UTC | Simulations Plus, Inc. SLP · Entity 5719 | GrantStock Option (right to buy) · Derivative | 416 | $14.50 Strike: $14.50 | $6,032.00 |
DisclosureSEC source: 0001683168-17-002296 · weiner_frm4.xml · derivative · entry 2 WEINER DANIEL L · CIK 0001134615 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 416 Underlying: Common Stock · 416 shares Expires 2027-08-31 F2 · derivative.exercise_date: The option is vested over a three year period with 40% on the first anniversary of the date of grant and continuing to vest as to the 2nd and 3rd installment on the 2nd and 3rd anniversary date thereafter at 30%. Read SEC document |
| August 02, 2017 Filed Aug 2, 2017 20:02 UTC | Simulations Plus, Inc. SLP · Entity 5719 | GrantCommon Stock | 828 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001683168-17-001930 · weiner_f4.xml · nonDerivative · entry 1 WEINER DANIEL L · CIK 0001134615 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 828 F1 · price: Shares granted as independent director compensation, issued from the 2017 Equity Incentive Plan. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.