ALPHA & OMEGA SEMICONDUCTOR

Ticker: AOSL CUSIP: G6331P104 Class: Common Stock

SEI INVESTMENTS CO's Holding History (CIK: 0000350894)

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

Q4 2025

Shares 83,618 Value ($000) $1,656 Avg Close $23.61 Range $17.02 - $33.01

Q3 2025

Shares 103,072 Value ($000) $2,882 Avg Close $27.76 Range $20.67 - $31.56

Q2 2025

Shares 103,744 Value ($000) $2,662 Avg Close $21.74 Range $15.90 - $26.72

Q1 2025

Shares 83,824 Value ($000) $2,084 Avg Close $33.47 Range $23.65 - $46.65

Q4 2024

Shares 86,084 Value ($000) $3,188 Avg Close $37.27 Range $25.97 - $53.29

Q3 2024

Shares 89,472 Value ($000) $3,321 Avg Close $37.97 Range $31.73 - $47.45

Q2 2024

Shares 123,560 Value ($000) $4,617 Avg Close $26.42 Range $19.38 - $37.88

Q1 2024

Shares 108,301 Value ($000) $2,387 Avg Close $24.18 Range $20.36 - $29.11

Q4 2023

Shares 71,448 Value ($000) $1,862 Avg Close $24.69 Range $20.03 - $30.49

Q3 2023

Shares 74,785 Value ($000) $2,232 Avg Close $31.10 Range $28.05 - $35.40

Q2 2023

Shares 76,286 Value ($000) $2,502 Avg Close $26.90 Range $20.64 - $33.02

Q1 2023

Shares 76,199 Value ($000) $2,054 Avg Close $29.03 Range $24.05 - $38.87

Q4 2022

Shares 75,671 Value ($000) $2,162 Avg Close $32.35 Range $27.38 - $38.82

Q3 2022

Shares 76,272 Value ($000) $2,346 Avg Close $37.00 Range $28.74 - $45.89

Q2 2022

Shares 98,866 Value ($000) $3,296 Avg Close $40.95 Range $31.65 - $56.25

Q1 2022

Shares 72,657 Value ($000) $3,971 Avg Close $52.02 Range $38.10 - $69.99

Q4 2021

Shares 70,793 Value ($000) $4,287 Avg Close $43.30 Range $29.76 - $63.29

Q4 2018

Shares 3,799 Value ($000) $44 Avg Close $10.30 Range $9.01 - $11.96

Q3 2018

Shares 3,799 Value ($000) $44 Avg Close $13.73 Range $11.44 - $16.26

Q2 2018

Shares 100 Value ($000) $1 Avg Close $15.40 Range $12.92 - $16.30

Q1 2018

Shares 132 Value ($000) $2 Avg Close $16.17 Range $13.53 - $17.82

Q4 2017

Shares 132 Value ($000) $2 Avg Close $17.50 Range $16.30 - $18.72

Q3 2017

Shares 132 Value ($000) $2 Avg Close $16.38 Range $14.81 - $18.71

Q2 2017

Shares 132 Value ($000) $2 Avg Close $17.75 Range $15.76 - $20.48

Q4 2016

Shares 846 Value ($000) $18 Avg Close $21.60 Range $18.14 - $23.93

Q3 2016

Shares 687 Value ($000) $15 Avg Close $17.96 Range $13.08 - $23.07

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	83,618	$1,656	$23.61	$17.02 - $33.01
Q3 2025	103,072	$2,882	$27.76	$20.67 - $31.56
Q2 2025	103,744	$2,662	$21.74	$15.90 - $26.72
Q1 2025	83,824	$2,084	$33.47	$23.65 - $46.65
Q4 2024	86,084	$3,188	$37.27	$25.97 - $53.29
Q3 2024	89,472	$3,321	$37.97	$31.73 - $47.45
Q2 2024	123,560	$4,617	$26.42	$19.38 - $37.88
Q1 2024	108,301	$2,387	$24.18	$20.36 - $29.11
Q4 2023	71,448	$1,862	$24.69	$20.03 - $30.49
Q3 2023	74,785	$2,232	$31.10	$28.05 - $35.40
Q2 2023	76,286	$2,502	$26.90	$20.64 - $33.02
Q1 2023	76,199	$2,054	$29.03	$24.05 - $38.87
Q4 2022	75,671	$2,162	$32.35	$27.38 - $38.82
Q3 2022	76,272	$2,346	$37.00	$28.74 - $45.89
Q2 2022	98,866	$3,296	$40.95	$31.65 - $56.25
Q1 2022	72,657	$3,971	$52.02	$38.10 - $69.99
Q4 2021	70,793	$4,287	$43.30	$29.76 - $63.29
Q4 2018	3,799	$44	$10.30	$9.01 - $11.96
Q3 2018	3,799	$44	$13.73	$11.44 - $16.26
Q2 2018	100	$1	$15.40	$12.92 - $16.30
Q1 2018	132	$2	$16.17	$13.53 - $17.82
Q4 2017	132	$2	$17.50	$16.30 - $18.72
Q3 2017	132	$2	$16.38	$14.81 - $18.71
Q2 2017	132	$2	$17.75	$15.76 - $20.48
Q4 2016	846	$18	$21.60	$18.14 - $23.93
Q3 2016	687	$15	$17.96	$13.08 - $23.07