Marshall Wace’s QuinStreet QNST Stock Holding History

Marshall Wace’s Portfolio QNST Stock Details QNST Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$4.58M	Sell	381,511 -286,330	-43%	-$3.63M	﹤0.01%	1349
2025 Q4	$9.6M	Buy	667,841 +2,725	+0.4%	+$39.3K	0.01%	889
2025 Q3	$10.3M	Sell	665,116 -216,905	-25%	-$3.44M	0.01%	910
2025 Q2	$14.2M	Buy	882,021 +280,942	+47%	+$4.51M	0.02%	706
2025 Q1	$10.7M	Buy	601,079 +420,154	+232%	+$8.81M	0.01%	748
2024 Q4	$4.17M	Buy	+180,925	New	+$3.81M	0.01%	1141
2024 Q2	–	Sell	-25,870	Closed	-$457K	–	2874
2024 Q1	$457K	Buy	+25,870	New	+$368K	﹤0.01%	1966
2023 Q4	–	Sell	-42,329	Closed	-$380K	–	2530
2023 Q3	$380K	Buy	+42,329	New	+$392K	﹤0.01%	1801
2019 Q4	–	Sell	-247,353	Closed	-$3.11M	–	1997
2019 Q3	$3.11M	Sell	247,353 -224,926	-48%	-$3.07M	0.02%	629
2019 Q2	$7.49M	Sell	472,279 -168,480	-26%	-$2.51M	0.06%	366
2019 Q1	$8.58M	Buy	+640,759	New	+$9.93M	0.08%	305
2018 Q4	–	Sell	-280,199	Closed	-$3.8M	–	1768
2018 Q3	$3.8M	Buy	+280,199	New	+$3.97M	0.03%	525

Other funds holding QNST

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

PCMF

Private Capital Management (Florida) Naples, Florida $1B AUM 15.98% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return

Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

Royce & Associates New York $10.1B AUM 42.88% 1-Year Est. Return

Lazard Asset Management New York $60.8B AUM 22.47% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Marshall Wace's QNST Position: Q1 2026 in Review

Marshall Wace reduced its QuinStreet (QNST) stake by 43% in Q1 2026, selling an estimated $3.63M and leaving 381,511 shares worth $4.58M. The position accounts for ﹤0.01% of the portfolio, ranked #1349.

Marshall Wace first reported a position in QNST in Q3 2018 and has held it in 12 quarters since. The position peaked at $14.2M in Q2 2025. 220 funds tracked by Wall St. Rank hold QNST as of Q1 2026.

Marshall Wace held 381,511 shares of QuinStreet worth $4.58M as of Q1 2026.
Marshall Wace sold 286,330 QuinStreet shares in Q1 2026, an estimated $3.63M.
QuinStreet made up ﹤0.01% of Marshall Wace's portfolio in Q1 2026, its #1349 holding.
Marshall Wace first reported a position in QuinStreet in Q3 2018 and has held it in 12 quarters since.
Marshall Wace's QuinStreet position peaked at $14.2M in Q2 2025.
220 funds tracked by Wall St. Rank held QuinStreet as of Q1 2026.

Based on Marshall Wace's 13F filing for Q1 2026, filed 15 May 2026.