ALLEGRO MICROSYSTEMS INC

Ticker: ALGM CUSIP: 01749D105 Class: Common Stock

Vontobel Holding Ltd.'s Holding History (CIK: 0001588340)

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

Q4 2025

Shares 16,413 Value ($000) $433 Avg Close $27.52 Range $22.41 - $33.84

Q3 2025

Shares 17,724 Value ($000) $518 Avg Close $32.34 Range $28.85 - $38.45

Q2 2024

Shares 41,016 Value ($000) $1,158 Avg Close $28.47 Range $23.64 - $31.82

Q1 2024

Shares 56,982 Value ($000) $1,536 Avg Close $28.90 Range $25.00 - $32.63

Q4 2023

Shares 75,414 Value ($000) $2,283 Avg Close $28.56 Range $24.66 - $32.19

Q3 2023

Shares 60,624 Value ($000) $1,936 Avg Close $40.63 Range $31.31 - $53.05

Q2 2023

Shares 51,325 Value ($000) $2,317 Avg Close $40.49 Range $34.19 - $48.72

Q1 2023

Shares 11,130 Value ($000) $534 Avg Close $40.69 Range $28.84 - $48.30

Q2 2022

Shares 23,908 Value ($000) $495 Avg Close $23.87 Range $20.08 - $28.93

Q1 2022

Shares 23,908 Value ($000) $679 Avg Close $28.58 Range $24.81 - $37.29

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	16,413	$433	$27.52	$22.41 - $33.84
Q3 2025	17,724	$518	$32.34	$28.85 - $38.45
Q2 2024	41,016	$1,158	$28.47	$23.64 - $31.82
Q1 2024	56,982	$1,536	$28.90	$25.00 - $32.63
Q4 2023	75,414	$2,283	$28.56	$24.66 - $32.19
Q3 2023	60,624	$1,936	$40.63	$31.31 - $53.05
Q2 2023	51,325	$2,317	$40.49	$34.19 - $48.72
Q1 2023	11,130	$534	$40.69	$28.84 - $48.30
Q2 2022	23,908	$495	$23.87	$20.08 - $28.93
Q1 2022	23,908	$679	$28.58	$24.81 - $37.29