QuinStreet, Inc (QNST) Ownership

NASDAQ: QNSTTop holders, insider trades and short interest.

QNST ownership summary

as of October 18, 2026
Institutions
94.8%
of shares outstanding
Insiders
3.28%
of shares outstanding
Shares outstanding
57.2M
Float
54.2M
shares available to trade
Short interest
13.35%
5.5M shares short
Days to cover
4.97
short interest down 7.7% vs prior month
  • Institutions 94.81%
  • Insiders 3.28%
  • Other investors 1.92%

QNST top institutional holders

20 largest
QuinStreet, Inc top institutional holders
#Holder% of sharesSharesValueChangeReported
1BlackRock Inc19.18%11.0M$179.1M+426,392 (+4.0%)June 30, 2026
2Private Capital Management, LLC8.21%4.7M$76.7M+284,110 (+6.4%)June 30, 2026
3AQR Capital Management LLC4.41%2.5M$41.2M+448,336 (+21.6%)June 30, 2026
4Vanguard Capital Management, LLC4.25%2.4M$39.7M+14,064 (+0.6%)June 30, 2026
5State Street Corp3.93%2.2M$36.7M+79,757 (+3.7%)June 30, 2026
6The Goldman Sachs Group Inc3.54%2.0M$33.1M+423,575 (+26.4%)June 30, 2026
7Royce & Associates, LP3.00%1.7M$28.0M+142,535 (+9.1%)June 30, 2026
8Geode Capital Management, LLC2.53%1.4M$23.6M+78,339 (+5.7%)June 30, 2026
9Dimensional Fund Advisors, Inc.2.43%1.4M$22.7M+190,164 (+15.8%)June 30, 2026
10Vanguard Portfolio Management, LLC2.29%1.3M$21.4M−22,854 (−1.7%)June 30, 2026
11Lazard Asset Management LLC2.10%1.2M$19.7M−237,045 (−16.4%)June 30, 2026
12Jacobs Levy Equity Management, Inc.2.01%1.1M$18.7M+201,509 (+21.3%)June 30, 2026
13Jacobs Asset Management, LLC1.66%950K$15.5M−184,300 (−16.2%)June 30, 2026
14Millennium Management LLC1.62%928K$15.1M+905,523 (+4,101.3%)June 30, 2026
15NewEdge Investment Solutions1.45%830K$13.5M−59,415 (−6.7%)June 30, 2026
16Nuveen, LLC1.33%759K$12.4M−177,332 (−18.9%)June 30, 2026
17Morgan Stanley - Brokerage Accounts1.22%699K$11.4M−193,954 (−21.7%)June 30, 2026
18Thompson, Siegel & Walmsley LLC1.18%673K$11.0M+85,517 (+14.6%)June 30, 2026
19Northern Trust Corp1.13%644K$10.5M+16,647 (+2.7%)June 30, 2026
20Heartland Advisors Inc1.05%600K$9.8M+100,000 (+20.0%)June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 14 holders added 3.4M shares and 6 cut 875K.

QNST top mutual fund and ETF holders

20 largest
QuinStreet, Inc top fund holders
#Holder% of sharesSharesValueChangeReported
1iShares Core S&P Small-Cap ETF5.62%3.2M$52.4M+828 (+0.0%)September 30, 2026
2Vanguard MStar Total Stk Mkt Idx Invest3.01%1.7M$28.1M—August 31, 2026
3iShares Russell 2000 ETF2.49%1.4M$23.3M−16,448 (−1.1%)September 30, 2026
4Fidelity Small Cap Index1.05%603K$9.8M+5,283 (+0.9%)July 31, 2026
5BlackRock Advantage Small Cap Core Instl1.05%601K$9.8M−2,924 (−0.5%)August 31, 2026
6Heartland Value Investor1.05%600K$9.8M—September 30, 2026
7Nuveen Quant Small Cap Equity R60.94%538K$8.8M—August 31, 2026
8iShares Russell 2000 Growth ETF0.90%516K$8.4M−653 (−0.1%)September 30, 2026
9State Street SPDR Port S&P 600 Sm CpETF0.87%496K$8.1M—September 30, 2026
10Vanguard Tax-Managed Small Cap Adm0.65%374K$6.1M—September 30, 2026
11FTGF RY US SmCp Opp A USD Dis(A)0.65%371K$6.1M−18,267 (−4.7%)August 31, 2026
12Royce Small-Cap Opportunity Invmt0.63%362K$5.9M−35,752 (−9.0%)September 30, 2026
13Royce Micro-Cap Trust0.62%358K$5.8M−10,840 (−2.9%)September 30, 2026
14BlackRock Global Equity Mkt Netrl Instl0.62%355K$5.8M−35,521 (−9.1%)July 31, 2026
15Private Capital Management Value I0.58%329K$5.4M—June 30, 2026
16Vanguard Russell 2000 ETF0.56%321K$5.2M+3,886 (+1.2%)September 30, 2026
17iShares S&P Small-Cap 600 Growth ETF0.56%320K$5.2M—September 30, 2026
18GS Glb Sm Cp CORE Eq Base Inc USD Snap0.53%301K$4.9M+38,395 (+14.6%)July 31, 2026
19Fidelity Extended Market Index0.50%284K$4.6M−2,316 (−0.8%)August 31, 2026
20Schwab US Small-Cap ETF™0.49%282K$4.6M+189 (+0.1%)September 30, 2026

Funds report holdings monthly or quarterly; dates differ by fund.

QNST insider transactions

latest 17
QuinStreet, Inc insider transactions
DateNameTransactionPriceSharesValue
2025-02-18Gregory WongSell$22.888,516$194,846
2025-02-05Douglas ValentiSell$25.0210,000$250,200
2024-11-29Stuart HuizingaSell$23.002,980$68,540
2024-11-25Stuart HuizingaSell$23.217,020$162,934
2024-11-12Matthew GlickmanSell$22.6330,000$678,900
2024-02-20Gregory WongSell$15.038,407$126,357
2023-12-18Gregory WongSell$12.947,145$92,456
2023-12-15Gregory WongSell$12.8525,865$332,365
2023-11-15Andrew T SheehanSell$11.4450,000$572,000
2023-09-18Douglas ValentiBuy$9.002,500$22,500
2023-09-11Douglas ValentiBuy$9.432,500$23,575
2023-09-05Douglas ValentiBuy$9.882,500$24,700
2023-08-28Douglas ValentiBuy$9.612,500$24,025
2023-08-23Douglas ValentiBuy$9.942,500$24,850
2023-07-21Gregory WongSell$9.0170,000$630,700
2023-05-17Hillary B SmithBuy$7.503,350$25,125
2023-05-15David J PauldineBuy$7.5515,904$120,075

Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.

QNST shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns QNST

Institutional investors own 94.8% of QuinStreet's shares and insiders 3.28%. The largest holder is BlackRock Inc with 19.18% of the shares (11.0M), as of June 30, 2026. Among the top 20 institutions, 14 added shares and 6 reduced their stake in the latest filings. Short interest is 13.35% of the float, or 4.97 days of average trading volume. The share count rose 30.3% since 2014.

Related: QNST analyst forecast, QNST key metrics. See the QNST stock overview for the latest quote and news.

QNST ownership FAQ

Who owns the most QuinStreet stock?

The largest shareholders of QuinStreet are BlackRock Inc (19.18%), Private Capital Management, LLC (8.21%), AQR Capital Management LLC (4.41%), Vanguard Capital Management, LLC (4.25%), State Street Corp (3.93%).

What percentage of QuinStreet is owned by institutions?

Institutions hold 94.8% of QuinStreet's shares outstanding; insiders hold 3.28%.

Which funds own QuinStreet?

The largest fund holders of QuinStreet are iShares Core S&P Small-Cap ETF (5.62%), Vanguard MStar Total Stk Mkt Idx Invest (3.01%), iShares Russell 2000 ETF (2.49%), Fidelity Small Cap Index (1.05%), BlackRock Advantage Small Cap Core Instl (1.05%).

What is QuinStreet's short interest?

5.5M shares of QuinStreet were sold short, 13.35% of the float; at the average daily volume it would take 4.97 days to cover.

Are insiders buying or selling QuinStreet?

Of the latest 17 reported insider transactions in QuinStreet (since May 15, 2023), 7 were purchases and 10 were sales.

How many shares of QuinStreet are outstanding?

QuinStreet has 57.2M shares outstanding, of which 54.2M are in the public float.

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