SIMULATIONS PLUS INC

Ticker: SLP CUSIP: 829214105 Class: Common Stock

LORD, ABBETT & CO. LLC's Holding History (CIK: 0000728100)

Note: Option positions (PUT/CALL) are excluded.

Q2 2021

Shares 46,718 Value ($000) $2,565 Avg Close $56.26 Range $48.44 - $69.22

Q1 2021

Shares 130,069 Value ($000) $8,226 Avg Close $71.97 Range $56.29 - $89.19

Q4 2020

Shares 114,848 Value ($000) $8,260 Avg Close $64.97 Range $50.22 - $76.28

Q3 2020

Shares 90,667 Value ($000) $6,833 Avg Close $62.82 Range $55.06 - $74.66

Q2 2020

Shares 59,193 Value ($000) $3,541 Avg Close $43.04 Range $31.44 - $60.04

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2021	46,718	$2,565	$56.26	$48.44 - $69.22
Q1 2021	130,069	$8,226	$71.97	$56.29 - $89.19
Q4 2020	114,848	$8,260	$64.97	$50.22 - $76.28
Q3 2020	90,667	$6,833	$62.82	$55.06 - $74.66
Q2 2020	59,193	$3,541	$43.04	$31.44 - $60.04