QUINSTREET INC (QNST) Top Institutional Shareholders
QUINSTREET INC (QNST) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $607.68M in QNST holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of QNST tracked by InsiderSet, reporting ownership valued at approximately $126.71M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $134.72M, representing an estimated gain of +6.33% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 57% of the total disclosed QNST value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Private Capital Management, Llc, Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in QUINSTREET INC (QNST).
This page ranks the largest institutional QNST shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
215
Total Reported Value
$607.68M
Largest Holder
Blackrock, Inc.
Largest Position
$126.71M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
141
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 10,550,030 | $126,705,861 | $134,723,883 | +$8,018,022 | +6.33% | |
| Private Capital Management, Llc | 5.40% | 4,415,402 | $53,028,978 | $56,384,684 | +$3,355,706 | +6.33% | |
| Vanguard Capital Management Llc | 0.00% | 2,419,282 | $29,055,577 | $30,894,231 | +$1,838,654 | +6.33% | |
| State Street Corp | 0.00% | 2,169,083 | $26,050,687 | $27,699,190 | +$1,648,503 | +6.33% | |
| Aqr Capital Management Llc | 0.01% | 2,073,318 | $24,900,549 | $26,476,271 | +$1,575,722 | +6.33% | |
| Goldman Sachs Group Inc | 0.00% | 1,604,674 | $19,272,135 | $20,491,687 | +$1,219,552 | +6.33% | |
| Royce & Associates Lp | 0.19% | 1,574,293 | $18,907,259 | $20,103,722 | +$1,196,463 | +6.33% | |
| Lazard Asset Management Llc | 0.03% | 1,441,113 | $17,307,767 | $18,403,013 | +$1,095,246 | +6.33% | |
| Geode Capital Management, Llc | 0.00% | 1,370,786 | $16,465,813 | $17,504,937 | +$1,039,124 | +6.31% | |
| Vanguard Portfolio Management Llc | 0.00% | 1,333,342 | $16,013,437 | $17,026,777 | +$1,013,340 | +6.33% | |
| Dimensional Fund Advisors Lp | 0.00% | 1,200,335 | $14,417,309 | $15,328,278 | +$910,969 | +6.32% | |
| Jacobs Asset Management, Llc | 8.15% | 1,134,300 | $13,622,943 | $14,485,011 | +$862,068 | +6.33% | |
| Jacobs Levy Equity Management, Inc | 0.05% | 946,760 | $11,370,588 | $12,090,125 | +$719,537 | +6.33% | |
| Nuveen, Llc | 0.00% | 936,385 | $11,245,983 | $11,957,636 | +$711,653 | +6.33% | |
| Morgan Stanley | 0.00% | 892,639 | $10,720,604 | $11,399,000 | +$678,396 | +6.33% | |
| D. E. Shaw & Co., Inc. | 0.01% | 892,119 | $10,714,350 | $11,392,360 | +$678,010 | +6.33% | |
| Newedge Wealth, Llc | 0.13% | 889,255 | $10,679,953 | $11,355,786 | +$675,833 | +6.33% | |
| Qube Research & Technologies Ltd | 0.01% | 830,268 | $9,971,519 | $10,602,522 | +$631,003 | +6.33% | |
| Northern Trust Corp | 0.00% | 627,835 | $7,540,298 | $8,017,453 | +$477,155 | +6.33% | |
| Assenagon Asset Management S.A. | 0.01% | 577,199 | $6,932,160 | $7,370,831 | +$438,671 | +6.33% | |
| Bnp Paribas Financial Markets | 0.00% | 547,570 | $6,576,316 | $6,992,469 | +$416,153 | +6.33% | |
| Balyasny Asset Management L.P. | 0.01% | 538,206 | $6,463,854 | $6,872,891 | +$409,037 | +6.33% | |
| Charles Schwab Investment Management Inc | 0.00% | 529,909 | $6,364,207 | $6,766,938 | +$402,731 | +6.33% | |
| Mill Road Capital Management Llc | 3.27% | 518,879 | $6,231,737 | $6,626,085 | +$394,348 | +6.33% | |
| Heartland Advisors Inc | 0.31% | 500,000 | $6,005,000 | $6,385,000 | +$380,000 | +6.33% | |
| Ubs Group Ag | 0.00% | 470,290 | $5,648,183 | $6,005,603 | +$357,420 | +6.33% | |
| Principal Financial Group Inc | 0.00% | 408,930 | $4,911,249 | $5,222,036 | +$310,787 | +6.33% | |
| Vanguard Fiduciary Trust Co | 0.00% | 392,806 | $4,717,600 | $5,016,133 | +$298,533 | +6.33% | |
| Marshall Wace, Llp | 0.00% | 381,511 | $4,581,946 | $4,871,895 | +$289,949 | +6.33% | |
| Renaissance Technologies LLC | Jim Simons | 0.01% | 357,000 | $4,287,570 | $4,558,890 | +$271,320 | +6.33% |
| Nordea Investment Management Ab | 0.00% | 349,082 | $4,216,911 | $4,457,777 | +$240,866 | +5.71% | |
| First Eagle U.S. Value | Jean-Marie Eveillard | 0.01% | 349,874 | $4,201,987 | $4,467,891 | +$265,904 | +6.33% |
| Mackenzie Financial Corp | 0.00% | 344,408 | $4,136,340 | $4,398,090 | +$261,750 | +6.33% | |
| Bank Of New York Mellon Corp | 0.00% | 316,277 | $3,798,486 | $4,038,857 | +$240,371 | +6.33% | |
| Invesco Ltd. | 0.00% | 290,929 | $3,494,057 | $3,715,163 | +$221,106 | +6.33% | |
| Arrowstreet Capital, Limited Partnership | 0.00% | 230,187 | $2,764,546 | $2,939,488 | +$174,942 | +6.33% | |
| Citadel Advisors Llc | 0.00% | 207,815 | $2,495,858 | $2,653,798 | +$157,940 | +6.33% | |
| Blair William & Co/Il | 0.01% | 205,144 | $2,463,784 | $2,619,689 | +$155,905 | +6.33% | |
| Public Sector Pension Investment Board | 0.01% | 204,385 | $2,454,664 | $2,609,996 | +$155,332 | +6.33% | |
| Bank Of America Corp | 0.00% | 179,378 | $2,154,329 | $2,290,657 | +$136,328 | +6.33% | |
| Captrust Financial Advisors | 0.00% | 172,205 | $2,068,215 | $2,199,058 | +$130,843 | +6.33% | |
| Exoduspoint Capital Management, Lp | 0.02% | 169,786 | $2,039,130 | $2,168,167 | +$129,037 | +6.33% | |
| Rhumbline Advisers | 0.00% | 148,979 | $1,789,222 | $1,902,462 | +$113,240 | +6.33% | |
| Victory Capital Management Inc | 0.00% | 146,867 | $1,763,873 | $1,875,492 | +$111,619 | +6.33% | |
| Federated Hermes, Inc. | 0.00% | 141,769 | $1,702,645 | $1,810,390 | +$107,745 | +6.33% | |
| Hillsdale Investment Management Inc. | 0.04% | 134,400 | $1,614,144 | $1,716,288 | +$102,144 | +6.33% | |
| Legal & General Group Plc | 0.00% | 128,837 | $1,547,332 | $1,645,248 | +$97,916 | +6.33% | |
| Hsbc Holdings Plc | 0.00% | 124,086 | $1,510,127 | $1,584,578 | +$74,451 | +4.93% | |
| Quantinno Capital Management Lp | 0.00% | 124,437 | $1,494,488 | $1,589,060 | +$94,572 | +6.33% | |
| Squarepoint Ops Llc | 0.00% | 119,831 | $1,439,170 | $1,530,242 | +$91,072 | +6.33% |
Frequently asked questions about QNST
Who owns the most QNST stock?
The largest holders of QNST are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for QUINSTREET INC (QNST).
Is QNST widely held by superinvestors?
Many widely followed stocks like QNST appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly QNST is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.