ALPHA & OMEGA SEMICONDUCTOR

Ticker: AOSL CUSIP: G6331P104 Class: Common Stock

GAGNON SECURITIES LLC's Holding History (CIK: 0001125725)

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

Q4 2025

Shares 215,642 Value ($000) $4,272 Avg Close $23.61 Range $17.02 - $33.01

Q3 2025

Shares 215,349 Value ($000) $6,021 Avg Close $27.76 Range $20.67 - $31.56

Q2 2025

Shares 215,980 Value ($000) $5,542 Avg Close $21.74 Range $15.90 - $26.72

Q1 2025

Shares 214,761 Value ($000) $5,339 Avg Close $33.47 Range $23.65 - $46.65

Q4 2024

Shares 214,105 Value ($000) $7,928 Avg Close $37.27 Range $25.97 - $53.29

Q3 2024

Shares 214,951 Value ($000) $7,979 Avg Close $37.97 Range $31.73 - $47.45

Q2 2024

Shares 311,823 Value ($000) $11,653 Avg Close $26.42 Range $19.38 - $37.88

Q1 2024

Shares 330,504 Value ($000) $7,284 Avg Close $24.18 Range $20.36 - $29.11

Q4 2023

Shares 344,650 Value ($000) $8,982 Avg Close $24.69 Range $20.03 - $30.49

Q3 2023

Shares 348,328 Value ($000) $10,394 Avg Close $31.10 Range $28.05 - $35.40

Q2 2023

Shares 352,711 Value ($000) $11,569 Avg Close $26.90 Range $20.64 - $33.02

Q1 2023

Shares 359,874 Value ($000) $9,699 Avg Close $29.03 Range $24.05 - $38.87

Q4 2022

Shares 357,763 Value ($000) $10,221 Avg Close $32.35 Range $27.38 - $38.82

Q3 2022

Shares 360,282 Value ($000) $11,082 Avg Close $37.00 Range $28.74 - $45.89

Q2 2022

Shares 364,408 Value ($000) $12,149 Avg Close $40.95 Range $31.65 - $56.25

Q1 2022

Shares 431,430 Value ($000) $23,578 Avg Close $52.02 Range $38.10 - $69.99

Q4 2021

Shares 659,982 Value ($000) $39,969 Avg Close $43.30 Range $29.76 - $63.29

Q3 2021

Shares 747,927 Value ($000) $23,462 Avg Close $27.72 Range $23.66 - $34.00

Q2 2021

Shares 755,916 Value ($000) $22,972 Avg Close $30.74 Range $25.32 - $35.86

Q1 2021

Shares 756,307 Value ($000) $24,731 Avg Close $32.84 Range $23.77 - $43.00

Q4 2020

Shares 837,886 Value ($000) $19,808 Avg Close $20.41 Range $12.74 - $29.20

Q3 2020

Shares 804,179 Value ($000) $10,310 Avg Close $12.06 Range $10.02 - $15.08

Q2 2020

Shares 805,769 Value ($000) $8,767 Avg Close $10.24 Range $6.00 - $12.66

Q1 2020

Shares 808,143 Value ($000) $5,180 Avg Close $10.88 Range $5.82 - $14.50

Q4 2019

Shares 815,557 Value ($000) $11,108 Avg Close $12.64 Range $11.09 - $14.16

Q3 2019

Shares 821,973 Value ($000) $10,094 Avg Close $11.04 Range $8.50 - $13.67

Q2 2019

Shares 825,251 Value ($000) $7,708 Avg Close $10.42 Range $8.22 - $13.36

Q1 2019

Shares 774,623 Value ($000) $8,916 Avg Close $11.06 Range $9.94 - $12.42

Q4 2018

Shares 777,718 Value ($000) $7,925 Avg Close $10.30 Range $9.01 - $11.96

Q3 2018

Shares 635,745 Value ($000) $7,394 Avg Close $13.73 Range $11.44 - $16.26

Q2 2018

Shares 583,286 Value ($000) $8,306 Avg Close $15.40 Range $12.92 - $16.30

Q1 2018

Shares 448,679 Value ($000) $6,932 Avg Close $16.17 Range $13.53 - $17.82

Q4 2017

Shares 476,955 Value ($000) $7,803 Avg Close $17.50 Range $16.30 - $18.72

Q3 2017

Shares 480,355 Value ($000) $7,921 Avg Close $16.38 Range $14.81 - $18.71

Q2 2017

Shares 448,793 Value ($000) $7,481 Avg Close $17.75 Range $15.76 - $20.48

Q1 2017

Shares 472,754 Value ($000) $8,127 Avg Close $19.83 Range $16.35 - $23.00

Q4 2016

Shares 483,263 Value ($000) $10,279 Avg Close $21.60 Range $18.14 - $23.93

Q3 2016

Shares 503,073 Value ($000) $10,927 Avg Close $17.96 Range $13.08 - $23.07

Q1 2016

Shares 680,043 Value ($000) $8,059 Avg Close $10.55 Range $8.02 - $12.38

Q4 2015

Shares 888,283 Value ($000) $8,163 Avg Close $9.13 Range $7.68 - $9.90

Q3 2015

Shares 889,856 Value ($000) $6,932 Avg Close $7.89 Range $6.98 - $8.98

Q2 2015

Shares 1,177,486 Value ($000) $10,291 Avg Close $8.58 Range $7.36 - $9.18

Q1 2015

Shares 1,247,284 Value ($000) $11,113 Avg Close $8.91 Range $8.27 - $9.63

Q4 2014

Shares 1,288,695 Value ($000) $11,405 Avg Close $8.94 Range $8.07 - $9.94

Q2 2014

Shares 5,248 Value ($000) $549 Avg Close $7.92 Range $6.93 - $9.36

Q1 2014

Shares 1,295,806 Value ($000) $9,537 Avg Close $7.40 Range $6.80 - $8.10

Q4 2013

Shares 1,277,456 Value ($000) $9,849 Avg Close $7.68 Range $7.10 - $8.50

Q3 2013

Shares 1,351,603 Value ($000) $26,371 Avg Close $7.84 Range $7.02 - $8.96

Q2 2013

Shares 1,081,359 Value ($000) $8,262 Avg Close $8.05 Range $6.64 - $9.20

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	215,642	$4,272	$23.61	$17.02 - $33.01
Q3 2025	215,349	$6,021	$27.76	$20.67 - $31.56
Q2 2025	215,980	$5,542	$21.74	$15.90 - $26.72
Q1 2025	214,761	$5,339	$33.47	$23.65 - $46.65
Q4 2024	214,105	$7,928	$37.27	$25.97 - $53.29
Q3 2024	214,951	$7,979	$37.97	$31.73 - $47.45
Q2 2024	311,823	$11,653	$26.42	$19.38 - $37.88
Q1 2024	330,504	$7,284	$24.18	$20.36 - $29.11
Q4 2023	344,650	$8,982	$24.69	$20.03 - $30.49
Q3 2023	348,328	$10,394	$31.10	$28.05 - $35.40
Q2 2023	352,711	$11,569	$26.90	$20.64 - $33.02
Q1 2023	359,874	$9,699	$29.03	$24.05 - $38.87
Q4 2022	357,763	$10,221	$32.35	$27.38 - $38.82
Q3 2022	360,282	$11,082	$37.00	$28.74 - $45.89
Q2 2022	364,408	$12,149	$40.95	$31.65 - $56.25
Q1 2022	431,430	$23,578	$52.02	$38.10 - $69.99
Q4 2021	659,982	$39,969	$43.30	$29.76 - $63.29
Q3 2021	747,927	$23,462	$27.72	$23.66 - $34.00
Q2 2021	755,916	$22,972	$30.74	$25.32 - $35.86
Q1 2021	756,307	$24,731	$32.84	$23.77 - $43.00
Q4 2020	837,886	$19,808	$20.41	$12.74 - $29.20
Q3 2020	804,179	$10,310	$12.06	$10.02 - $15.08
Q2 2020	805,769	$8,767	$10.24	$6.00 - $12.66
Q1 2020	808,143	$5,180	$10.88	$5.82 - $14.50
Q4 2019	815,557	$11,108	$12.64	$11.09 - $14.16
Q3 2019	821,973	$10,094	$11.04	$8.50 - $13.67
Q2 2019	825,251	$7,708	$10.42	$8.22 - $13.36
Q1 2019	774,623	$8,916	$11.06	$9.94 - $12.42
Q4 2018	777,718	$7,925	$10.30	$9.01 - $11.96
Q3 2018	635,745	$7,394	$13.73	$11.44 - $16.26
Q2 2018	583,286	$8,306	$15.40	$12.92 - $16.30
Q1 2018	448,679	$6,932	$16.17	$13.53 - $17.82
Q4 2017	476,955	$7,803	$17.50	$16.30 - $18.72
Q3 2017	480,355	$7,921	$16.38	$14.81 - $18.71
Q2 2017	448,793	$7,481	$17.75	$15.76 - $20.48
Q1 2017	472,754	$8,127	$19.83	$16.35 - $23.00
Q4 2016	483,263	$10,279	$21.60	$18.14 - $23.93
Q3 2016	503,073	$10,927	$17.96	$13.08 - $23.07
Q1 2016	680,043	$8,059	$10.55	$8.02 - $12.38
Q4 2015	888,283	$8,163	$9.13	$7.68 - $9.90
Q3 2015	889,856	$6,932	$7.89	$6.98 - $8.98
Q2 2015	1,177,486	$10,291	$8.58	$7.36 - $9.18
Q1 2015	1,247,284	$11,113	$8.91	$8.27 - $9.63
Q4 2014	1,288,695	$11,405	$8.94	$8.07 - $9.94
Q2 2014	5,248	$549	$7.92	$6.93 - $9.36
Q1 2014	1,295,806	$9,537	$7.40	$6.80 - $8.10
Q4 2013	1,277,456	$9,849	$7.68	$7.10 - $8.50
Q3 2013	1,351,603	$26,371	$7.84	$7.02 - $8.96
Q2 2013	1,081,359	$8,262	$8.05	$6.64 - $9.20