QUINSTREET INC QNST
COM · Common Stock · CUSIP 74874Q100 · ISIN US74874Q1004
Company based in Foster City, California
- SectorIndustrials
- IndustryServices-Business Services, NEC
- HeadquartersFoster City, CA
- Founded1999
- Websitequinstreet.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($1.2m this quarter). Holder counts are more reliable. Shares outstanding: 57.1m as of 2026-08-21, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $14.68. Options: 7 managers hold calls ($10.7m notional), 2 hold puts ($294.5k).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 140 |
| Q4 2022 | 143 |
| Q1 2023 | 147 |
| Q2 2023 | 143 |
| Q3 2023 | 148 |
| Q4 2023 | 142 |
| Q1 2024 | 146 |
| Q2 2024 | 161 |
| Q3 2024 | 171 |
| Q4 2024 | 205 |
| Q1 2025 | 211 |
| Q2 2025 | 207 |
| Q3 2025 | 209 |
| Q4 2025 | 213 |
| Q1 2026 | 220 |
| Q2 2026 | 215 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 88 | 77 |
| Q4 2024 | 115 | 67 |
| Q1 2025 | 113 | 98 |
| Q2 2025 | 136 | 81 |
| Q3 2025 | 111 | 100 |
| Q4 2025 | 108 | 109 |
| Q1 2026 | 130 | 96 |
| Q2 2026 | 113 | 100 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $1.0m | $2.5m | 2.47 |
| Q4 2025 | $482.8k | $2.0m | 4.23 |
| Q1 2026 | $1.5m | $180.9k | 0.12 |
| Q2 2026 | $10.7m | $294.5k | 0.03 |
Biggest buyers
| MILLENNIUM MANAGEMENT LLC | Added | +905.5k |
| AQR CAPITAL MANAGEMENT LLC | Added | +448.3k |
| BlackRock, Inc. | Added | +426.4k |
| GOLDMAN SACHS GROUP INC | Added | +423.6k |
| Private Capital Management, LLC | Added | +284.1k |
| ALGERT GLOBAL LLC | Added | +246.4k |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Added | +201.5k |
| DIMENSIONAL FUND ADVISORS LP | Added | +190.2k |
| Jump Financial, LLC | Added | +154.9k |
| ROYCE & ASSOCIATES LP | Added | +142.5k |
Biggest sellers
| Qube Research & Technologies Ltd | Reduced | -533.3k |
| Assenagon Asset Management S.A. | Reduced | -517.9k |
| Balyasny Asset Management L.P. | Reduced | -496.0k |
| MARSHALL WACE, LLP | Sold out | -381.5k |
| First Eagle Investment Management, LLC | Sold out | -349.9k |
| D. E. Shaw & Co., Inc. | Reduced | -305.9k |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -241.0k |
| LAZARD ASSET MANAGEMENT LLC | Reduced | -237.0k |
| MORGAN STANLEY | Reduced | -194.0k |
| JACOBS ASSET MANAGEMENT, LLC | Reduced | -184.3k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $4.4m302.4k shares |
| CITADEL ADVISORS LLC | Added | $1.9m129.4k shares |
| SIMPLEX TRADING, LLC | Added | $1.9m128.1k shares |
| JANE STREET GROUP, LLC | Added | $1.4m98.7k shares |
| Walleye Capital LLC | New | $552.3k37.7k shares |
| GROUP ONE TRADING LLC | Added | $262.2k17.9k shares |
| IMC-Chicago, LLC | New | $224.1k15.3k shares |
Biggest puts
| CITADEL ADVISORS LLC | New | $174.3k11.9k shares |
| Walleye Capital LLC | New | $120.1k8.2k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution -3.1 pts · filed 2025-04-29 | 14.6% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 4 | $2.3m | $478.8k |
| Q1 2025 | 0 | — | 2 | $909.4k | $909.4k |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 0 | — | 0 | — | — |
| Q1 2026 | 0 | — | 0 | — | — |
| Q2 2026 | 0 | — | 1 | $268.9k | $268.9k |
| Q3 2026 | 0 | — | 3 | $17.2m | $16.3m |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-08-18 | Wong Gregory CFO | Sold plan | $239.2k11.7k shares |
| 2026-08-17 | Ahmed Asmau Director | Sold | $203.0k10.0k shares |
| 2026-08-14 | Ahmed Asmau Director | Sold | $312.8k15.0k shares |
| 2026-08-12 | Ahmed Asmau Director | Sold | $204.3k10.0k shares |
| 2026-08-11 | Ahmed Asmau Director | Sold | $104.0k5.0k shares |
| 2026-08-07 | Valenti Douglas Chief Executive Officer, director | Sold plan | $15.4m751.6k shares |
| 2026-08-07 | Wong Gregory CFO | Sold plan | $528.3k26.3k shares |
| 2026-07-01 | Wong Gregory CFO | Sold plan | $155.1k10.3k shares |
| 2026-06-15 | Wong Gregory CFO | Sold plan | $268.9k22.1k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 11.0m $160.8m | Added +426.4k |
| Private Capital Management, LLC 6.24% of their portfolio | 4.7m $68.8m | Added +284.1k |
| AQR CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 2.5m $36.9m | Added +448.3k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 2.4m $35.6m | Added +14.1k |
| STATE STREET CORP 0.00% of their portfolio | 2.2m $32.9m | Added +79.8k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 2.0m $29.7m | Added +423.6k |
| ROYCE & ASSOCIATES LP 0.20% of their portfolio | 1.7m $25.2m | Added +142.5k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 1.4m $21.2m | Added +78.3k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 1.4m $20.4m | Added +190.2k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 1.3m $19.2m | Reduced -22.9k |
| LAZARD ASSET MANAGEMENT LLC 0.03% of their portfolio | 1.2m $17.6m | Reduced -237.0k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.06% of their portfolio | 1.1m $16.8m | Added +201.5k |
| JACOBS ASSET MANAGEMENT, LLC 10.48% of their portfolio | 950.0k $13.9m | Reduced -184.3k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 927.6k $13.6m | Added +905.5k |
| NewEdge Wealth, LLC 0.12% of their portfolio | 829.8k $12.2m | Reduced -59.4k |
| Nuveen, LLC 0.00% of their portfolio | 759.1k $11.1m | Reduced -177.3k |
| MORGAN STANLEY 0.00% of their portfolio | 698.7k $10.2m | Reduced -194.0k |
| THOMPSON SIEGEL & WALMSLEY LLC 0.18% of their portfolio | 673.0k $9.9m | Added +85.5k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 644.5k $9.4m | Added +16.6k |
| HEARTLAND ADVISORS INC 0.39% of their portfolio | 600.0k $8.8m | Added +100.0k |
| D. E. Shaw & Co., Inc. 0.01% of their portfolio | 586.2k $8.6m | Reduced -305.9k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 576.0k $8.4m | Added +28.5k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 560.6k $8.2m | Added +30.7k |
| Mill Road Capital Management LLC 3.75% of their portfolio | 518.9k $7.6m | Unchanged |
| ALGERT GLOBAL LLC 0.09% of their portfolio | 500.5k $7.3m | Added +246.4k |
| UBS Group AG 0.00% of their portfolio | 435.9k $6.4m | Reduced -34.4k |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 422.3k $6.2m | Added +13.4k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 405.9k $5.9m | Added +13.1k |
| NORDEA INVESTMENT MANAGEMENT AB 0.00% of their portfolio | 351.8k $5.1m | Added +2.7k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.00% of their portfolio | 346.9k $5.1m | Added +116.7k |
| Invesco Ltd. 0.00% of their portfolio | 331.6k $4.9m | Added +40.7k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 321.4k $4.7m | Added +5.1k |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 297.0k $4.4m | Reduced -533.3k |
| Pacer Advisors, Inc. 0.01% of their portfolio | 271.7k $4.0m | Reduced -4.7k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 263.4k $3.9m | Added +55.6k |
| MACKENZIE FINANCIAL CORP 0.00% of their portfolio | 247.3k $3.6m | Reduced -97.1k |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 238.8k $3.5m | Added +114.7k |
| Jump Financial, LLC 0.03% of their portfolio | 224.7k $3.3m | Added +154.9k |
| EQUITABLE TRUST CO 0.14% of their portfolio | 222.9k $3.3m | Added +108.4k |
| BESSEMER GROUP INC 0.00% of their portfolio | 212.4k $3.1m | Unchanged |
| Quantinno Capital Management LP 0.00% of their portfolio | 203.6k $3.0m | Added +79.2k |
| BLAIR WILLIAM & CO/IL 0.01% of their portfolio | 202.1k $3.0m | Reduced -3.0k |
| Public Sector Pension Investment Board 0.01% of their portfolio | 197.3k $2.9m | Reduced -7.0k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 195.1k $2.9m | Added +15.8k |
| CAPTRUST FINANCIAL ADVISORS 0.00% of their portfolio | 190.8k $2.8m | Added +18.6k |
| Cerity Partners LLC 0.00% of their portfolio | 172.3k $2.5m | Added +119.4k |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 163.3k $2.4m | Added +16.4k |
| SG Americas Securities, LLC 0.00% of their portfolio | 159.4k $2.3m | Added +72.3k |
| XTX Topco Ltd 0.03% of their portfolio | 158.7k $2.3m | Added +130.1k |
| Hillsdale Investment Management Inc. 0.05% of their portfolio | 156.0k $2.3m | Added +21.6k |
| HRT FINANCIAL LP 0.00% of their portfolio | 140.6k $2.1m | Reduced -53.0k |
| Legal & General Group Plc 0.00% of their portfolio | 137.7k $2.0m | Added +8.9k |
| INTECH INVESTMENT MANAGEMENT LLC 0.02% of their portfolio | 130.3k $1.9m | Added +83.1k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 129.0k $1.9m | Reduced -20.0k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 116.0k $1.7m | Reduced -241.0k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 114.5k $1.7m | Added +2.1k |
| IEQ CAPITAL, LLC 0.01% of their portfolio | 113.2k $1.7m | Added +13.1k |
| Squarepoint Ops LLC 0.00% of their portfolio | 110.8k $1.6m | Reduced -9.0k |
| Swiss National Bank 0.00% of their portfolio | 107.6k $1.6m | Unchanged |
| MARTINGALE ASSET MANAGEMENT L P 0.04% of their portfolio | 103.2k $1.5m | Added +22.1k |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 101.7k $1.5m | Added +65.4k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 98.3k $1.4m | Reduced -3.0k |
| BARCLAYS PLC 0.00% of their portfolio | 98.0k $1.4m | Reduced -1.3k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 94.8k $1.4m | Added +11.5k |
| Mariner, LLC 0.00% of their portfolio | 93.7k $1.4m | Added +26.6k |
| FEDERATED HERMES, INC. 0.00% of their portfolio | 93.0k $1.4m | Reduced -48.7k |
| NOMURA HOLDINGS INC 0.01% of their portfolio | 88.7k $1.3m | Added +33.3k |
| Creative Planning 0.00% of their portfolio | 87.4k $1.3m | Reduced -2.1k |
| MERCER GLOBAL ADVISORS INC /ADV 0.00% of their portfolio | 73.3k $1.1m | Added +23.9k |
| OP Asset Management Ltd 0.01% of their portfolio | 69.1k $1.0m | Reduced -79.0k |
| Vanguard Global Advisers, LLC 0.00% of their portfolio | 68.6k $1.0m | Reduced -3.5k |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 68.5k $1.0m | Added +1.3k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 65.1k $953.1k | Added +16.3k |
| Horizon Investments, LLC 0.03% of their portfolio | 64.8k $2.5m | Added +4.9k |
| Assenagon Asset Management S.A. 0.00% of their portfolio | 59.3k $868.7k | Reduced -517.9k |
| Summit Global Investments 0.05% of their portfolio | 59.3k $868.0k | Unchanged |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 59.2k $866.9k | Reduced -5.5k |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 59.0k $864.2k | Added +610 |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 58.9k $863.2k | Added +8.4k |
| CANADA PENSION PLAN INVESTMENT BOARD 0.00% of their portfolio | 53.9k $789.6k | Reduced -3.2k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 53.7k $786.7k | Added +3.6k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 53.2k $638.9k | Unchanged |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC 0.00% of their portfolio | 52.2k $876.8k | Added +12.8k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 50.7k $742.5k | Added +30.5k |
| Magnetar Financial LLC 0.01% of their portfolio | 49.5k $725.3k | Added +10.5k |
| ALLSTATE CORP 0.01% of their portfolio | 48.5k $710.5k | New |
| Connor, Clark & Lunn Investment Management Ltd. 0.00% of their portfolio | 48.3k $708.3k | New |
| KLP KAPITALFORVALTNING AS 0.00% of their portfolio | 47.2k $691.5k | Unchanged |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 46.5k $681.0k | Unchanged |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 44.0k $645.0k | Added +1.3k |
| Balyasny Asset Management L.P. 0.00% of their portfolio | 42.2k $617.7k | Reduced -496.0k |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.00% of their portfolio | 40.9k $599.2k | Added +1.2k |
| ALPS ADVISORS INC 0.00% of their portfolio | 40.2k $588.8k | Added +379 |
| ExodusPoint Capital Management, LP 0.01% of their portfolio | 39.3k $576.3k | Reduced -130.4k |
| Thrivent Financial for Lutherans 0.00% of their portfolio | 37.7k $553.0k | Reduced -320 |
| LPL Financial LLC 0.00% of their portfolio | 36.2k $530.9k | Reduced -250 |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio | 36.2k $530.3k | Unchanged |
| VANGUARD ASSET MANAGEMENT, Ltd 0.00% of their portfolio | 35.5k $519.5k | Unchanged |
| AVIVA PLC 0.00% of their portfolio | 35.0k $512.4k | Reduced -3.5k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 34.2k $501.0k | Added +10.3k |