QUINSTREET INC

Ticker: QNST CUSIP: 74874Q100 Class: Common Stock

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q4 2025

Shares 667,841 Value ($000) $9,597 Avg Close $14.42 Range $12.98 - $15.94

Q3 2025

Shares 665,116 Value ($000) $10,289 Avg Close $15.88 Range $14.27 - $17.13

Q2 2025

Shares 882,021 Value ($000) $14,201 Avg Close $16.04 Range $14.39 - $19.29

Q1 2025

Shares 601,079 Value ($000) $10,723 Avg Close $20.96 Range $16.83 - $25.50

Q4 2024

Shares 180,925 Value ($000) $4,174 Avg Close $21.05 Range $17.64 - $26.27

Q1 2024

Shares 25,870 Value ($000) $457 Avg Close $14.24 Range $11.22 - $17.69

Q3 2023

Shares 42,329 Value ($000) $380 Avg Close $9.26 Range $8.08 - $10.70

Q3 2019

Shares 247,353 Value ($000) $3,114 Avg Close $13.64 Range $10.15 - $17.13

Q2 2019

Shares 472,279 Value ($000) $7,486 Avg Close $14.93 Range $12.98 - $16.81

Q1 2019

Shares 640,759 Value ($000) $8,580 Avg Close $15.50 Range $12.66 - $20.02

Q3 2018

Shares 280,199 Value ($000) $3,802 Avg Close $14.16 Range $12.12 - $16.42

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	667,841	$9,597	$14.42	$12.98 - $15.94
Q3 2025	665,116	$10,289	$15.88	$14.27 - $17.13
Q2 2025	882,021	$14,201	$16.04	$14.39 - $19.29
Q1 2025	601,079	$10,723	$20.96	$16.83 - $25.50
Q4 2024	180,925	$4,174	$21.05	$17.64 - $26.27
Q1 2024	25,870	$457	$14.24	$11.22 - $17.69
Q3 2023	42,329	$380	$9.26	$8.08 - $10.70
Q3 2019	247,353	$3,114	$13.64	$10.15 - $17.13
Q2 2019	472,279	$7,486	$14.93	$12.98 - $16.81
Q1 2019	640,759	$8,580	$15.50	$12.66 - $20.02
Q3 2018	280,199	$3,802	$14.16	$12.12 - $16.42