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JD

John Anthony II Dibella

SLP
CHIEF REVENUE OFFICER · SIMULATIONS PLUS, INC. · CIK 0001544167
FILING MIX · LIFETIME41%/59%
BUYS
11
SELLS
16
TOTAL VALUE
$2.54M
COMPANIES
1
ACTIVE SINCE
Dec 2020
HOLDINGS NOW
86,140
AVG SELL PX
$40.36
TRADE KIND
SHOWING 27 / 27
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
7 backtested trades · 8 horizons · 7 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by John Anthony II Dibella, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d7+57.14%+0.27%-0.53%+0.80%+1.84%—
14d7+42.86%-0.08%+0.19%-0.26%-1.35%—
30d7+42.86%+1.32%+2.86%-3.48%-4.45%—
60d7+28.57%+1.71%+4.22%-2.51%+1.17%—
90d7(1 pending)+33.33%+9.02%+7.41%+1.61%+10.35%—
180d7(2 pending)+20.00%+2.35%+14.67%-12.32%+2.65%—
1y7(2 pending)+40.00%-13.79%+26.32%-40.12%-23.36%—
2y7(2 pending)+100.00%-37.24%+41.81%-79.05%-75.80%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
SLP · 86,140 shares · as of Jul 6, 2026
022,53545,07067,60590,140202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
2026
FLOW · 11 buys / 16 sellsCOVERAGE · 24 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
SLP
SIMULATIONS PLUS, INC.
SALE10b5-1
10b5-1 plan
1,000$18.36$18.4K86,140Jul 6, 2026Jul 8, 2026 ↗View →
SLP
SIMULATIONS PLUS, INC.
SALE10b5-1
10b5-1 plan
1,000$16.50$16.5K87,140Jun 3, 2026Jun 4, 2026 ↗View →
SLP
SIMULATIONS PLUS, INC.
SALE10b5-1
10b5-1 plan
1,000$14.98$15.0K88,140May 4, 2026May 5, 2026 ↗View →
SLP
SIMULATIONS PLUS, INC.
SALE10b5-1
10b5-1 plan
1,000$13.37$13.4K89,140Apr 15, 2026Apr 16, 2026 ↗View →
SLP
SIMULATIONS PLUS, INC.
PURCHASE
Chief Revenue Officer
10,300$9.71$100.0K90,140Feb 6, 2026Feb 9, 2026 ↗View →
SLP
SIMULATIONS PLUS, INC.
SALE
Chief Revenue Officer
10,300——0Feb 6, 2026Feb 9, 2026 ↗View →
SLP
SIMULATIONS PLUS, INC.
PURCHASEGRANT
Stock grant
27,500——27,500Oct 16, 2025Oct 17, 2025 ↗View →
SLP
SIMULATIONS PLUS, INC.
PURCHASEGRANT
Stock grant
7,500——7,500Oct 17, 2024Oct 21, 2024 ↗View →
SLP
SIMULATIONS PLUS, INC.
SALE10b5-1
10b5-1 plan
5,411$45.16$244.4K79,840Dec 22, 2023Dec 26, 2023 ↗View →
SLP
SIMULATIONS PLUS, INC.
SALE10b5-1
10b5-1 plan
5,411$45.16$244.4K74,429Dec 22, 2023Dec 26, 2023 ↗View →
SLP
SIMULATIONS PLUS, INC.
PURCHASE
Business Unit President
5,411$19.81$107.2K85,251Dec 22, 2023Dec 26, 2023 ↗View →
SLP
SIMULATIONS PLUS, INC.
SALE
Business Unit President
5,411——2,589Dec 22, 2023Dec 26, 2023 ↗View →
SLP
SIMULATIONS PLUS, INC.
PURCHASEGRANT
Stock grant
15,000——15,000Oct 19, 2023Oct 23, 2023 ↗View →
SLP
SIMULATIONS PLUS, INC.
SALE
Division President
35,000——0Mar 23, 2023Mar 24, 2023 ↗View →
SLP
SIMULATIONS PLUS, INC.
PURCHASE
Division President
35,000$6.85$239.8K79,840Mar 23, 2023Mar 24, 2023 ↗View →
SLP
SIMULATIONS PLUS, INC.
SALE
Division President
8,120$39.05$317.1K49,162Mar 3, 2023Mar 6, 2023 ↗View →
SLP
SIMULATIONS PLUS, INC.
SALE
Division President
12,442——26,206Mar 3, 2023Mar 6, 2023 ↗View →
SLP
SIMULATIONS PLUS, INC.
SALE
Division President
4,322$39.54$170.9K44,840Mar 3, 2023Mar 6, 2023 ↗View →
SLP
SIMULATIONS PLUS, INC.
PURCHASE
Division President
12,442$10.05$125.0K57,282Mar 3, 2023Mar 6, 2023 ↗View →
SLP
SIMULATIONS PLUS, INC.
SALE
Division President
16,352$38.34$626.9K44,840Mar 2, 2023Mar 6, 2023 ↗View →
SLP
SIMULATIONS PLUS, INC.
SALE
Division President
15,000——35,000Mar 2, 2023Mar 6, 2023 ↗View →
SLP
SIMULATIONS PLUS, INC.
PURCHASE
Division President
15,000$6.85$102.8K59,840Mar 2, 2023Mar 6, 2023 ↗View →
SLP
SIMULATIONS PLUS, INC.
SALE
Division President
1,352——38,648Mar 2, 2023Mar 6, 2023 ↗View →
SLP
SIMULATIONS PLUS, INC.
PURCHASE
Division President
1,352$10.05$13.6K61,192Mar 2, 2023Mar 6, 2023 ↗View →
SLP
SIMULATIONS PLUS, INC.
PURCHASEGRANT
Stock grant
15,000——15,000Oct 20, 2022Oct 24, 2022 ↗View →
SLP
SIMULATIONS PLUS, INC.
SALE
Division President
2,360$80.00$188.8K44,840Jan 27, 2021Jan 29, 2021 ↗View →
SLP
SIMULATIONS PLUS, INC.
PURCHASEGRANT
Stock grant
9,300——9,300Dec 7, 2020Jan 29, 2021 ↗View →
Other insiders · SLP
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About this filer
CIK 0001544167
ROLE
Chief Revenue Officer
PRIMARY
SLP
COMPANIES
1
ACTIVE SINCE
Dec 2020
MARKETPEEL · /INSIDER/0001544167DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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