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Magnite, Inc.

MGNI
Exchange
Nasdaq
Industry
Services-Computer Programming, Data Processing, Etc.
SEC CIK
0001595974

In the last 90 days, Magnite, Inc. insiders filed 0 open-market purchases and 26 sales; 311 institutions reported holding it in 13F filings for Q2 2026, worth $2.69B in total; no superinvestor holds it.

13F holders, Q1 2024

Institutional positions in Magnite, Inc. as of Mar 31, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
232
+16 vs. Q4 2023
Shares held
102.1M
−543.0K (−0.5%) vs. Q4 2023
Total value
$1.10B
+$138.8M (+14.5%) vs. Q4 2023
New holders
39
75 more added
Sold out
23
70 more reduced

1 institution that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MGNI on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2024: 232 institutions
Q1 2021: 280 institutionsQ2 2021: 268 institutionsQ3 2021: 279 institutionsQ4 2021: 248 institutionsQ1 2022: 231 institutionsQ2 2022: 231 institutionsQ3 2022: 218 institutionsQ4 2022: 231 institutionsQ1 2023: 224 institutionsQ2 2023: 224 institutionsQ3 2023: 215 institutionsQ4 2023: 217 institutionsQ1 2024: 232 institutionsQ2 2024: 269 institutionsQ3 2024: 280 institutionsQ4 2024: 286 institutionsQ1 2025: 293 institutionsQ2 2025: 287 institutionsQ3 2025: 316 institutionsQ4 2025: 304 institutionsQ1 2026: 297 institutionsQ2 2026: 311 institutions
Value heldQ1 2024: $1.10B
Q1 2021: $3.59BQ2 2021: $2.89BQ3 2021: $2.52BQ4 2021: $1.57BQ1 2022: $1.17BQ2 2022: $781.6MQ3 2022: $679.0MQ4 2022: $988.1MQ1 2023: $892.4MQ2 2023: $1.39BQ3 2023: $780.6MQ4 2023: $959.0MQ1 2024: $1.10BQ2 2024: $1.39BQ3 2024: $1.65BQ4 2024: $1.97BQ1 2025: $1.52BQ2 2025: $3.54BQ3 2025: $3.00BQ4 2025: $2.22BQ1 2026: $1.56BQ2 2026: $2.69B
Institutions holding MGNI and their total value by quarter
QuarterHoldersValue
Q2 2026311$2.69B
Q1 2026297$1.56B
Q4 2025304$2.22B
Q3 2025316$3.00B
Q2 2025287$3.54B
Q1 2025293$1.52B
Q4 2024286$1.97B
Q3 2024280$1.65B
Q2 2024269$1.39B
Q1 2024232$1.10B
Q4 2023217$959.0M
Q3 2023215$780.6M
Q2 2023224$1.39B
Q1 2023224$892.4M
Q4 2022231$988.1M
Q3 2022218$679.0M
Q2 2022231$781.6M
Q1 2022231$1.17B
Q4 2021248$1.57B
Q3 2021279$2.52B
Q2 2021268$2.89B
Q1 2021280$3.59B

Institutions, Q1 2024

Shares, value and share of portfolio for each institution holding Magnite, Inc.; share changes are against Q4 2023.

Institutions holding MGNI in Q1 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Vanguard Group Inc12,818,197$137.8M0.00%+166,522+1.3%Added
BlackRock Inc.9,780,105$105.1M0.00%−250,695−2.5%Reduced
FMR LLC7,549,322$81.2M0.01%+583,795+8.4%Added
Edenbrook Capital, LLC5,822,255$62.6M32.21%−26,143−0.4%Reduced
Dimensional Fund Advisors LP5,448,523$58.6M0.02%+9,263+0.2%Added
Granahan Investment Management Inc5,438,092$58.5M2.05%−1,288,176−19.2%Reduced
Nine Ten Capital Management LLC3,714,398$39.9M12.16%−418,235−10.1%Reduced
Nuveen Asset Management, LLC3,250,283$34.9M0.01%+349,110+12.0%Added
Bank of New York Mellon Corp3,155,101$33.9M0.01%−34,273−1.1%Reduced
State Street Corp3,044,862$32.7M0.00%+78,938+2.7%Added
Geode Capital Management, LLC2,928,084$31.5M0.00%+97,537+3.4%Added
Wellington Management Group LLP2,805,824$30.2M0.01%−133,717−4.5%Reduced
Burgundy Asset Management Ltd.2,457,031$26.4M0.27%+25,921+1.1%Added
Victory Capital Management Inc1,943,790$20.9M0.02%−35,518−1.8%Reduced
Royce & Associates LP1,675,012$18.0M0.16%−131,979−7.3%Reduced
Kennedy Capital Management, Inc.1,558,740$16.8M0.34%−832,146−34.8%Reduced
Northern Trust Corp1,337,747$14.4M0.00%−18,574−1.4%Reduced
JPMorgan Chase & Co1,200,345$12.9M0.00%+37,869+3.3%Added
Goldman Sachs Group Inc1,197,911$12.9M0.00%+335,514+38.9%Added
Meros Investment Management, LP1,030,639$11.1M4.95%+6,759+0.7%Added
Kopion Asset Management, LLC1,024,311$11.0M7.82%−62,730−5.8%Reduced
Nordea Investment Management AB989,447$10.8M0.01%−1,226−0.1%Reduced
Charles Schwab Investment Management Inc1,005,825$10.8M0.00%+30,163+3.1%Added
Penn Capital Management Co Inc1,004,432$10.8M0.96%+4730.0%Added
Marshall Wace, LLP980,842$10.5M0.02%+782,112+393.6%Added
Silvercrest Asset Management Group LLC853,595$9.18M0.06%+36,298+4.4%Added
Morgan Stanley851,346$9.15M0.00%+127,212+17.6%Added
New York State Common Retirement Fund784,960$8.44M0.01%−11,053−1.4%Reduced
Norges Bank779,719$8.38M0.00%−94,387−10.8%Reduced
Williams Jones Wealth Management, LLC.748,614$8.05M0.10%+36,943+5.2%Added
Parallax Volatility Advisers, L.P.746,900$8.03M0.23%−392,805−34.5%Reduced
Grizzlyrock Capital, LLC685,357$7.37M6.04%−27,273−3.8%Reduced
Frontier Capital Management Co LLC660,187$7.10M0.07%−8,140−1.2%Reduced
King Luther Capital Management Corp518,709$5.58M0.03%−5,000−1.0%Reduced
S Squared Technology, LLC494,505$5.32M2.44%+158,759+47.3%Added
Tudor Investment Corp Et Al492,203$5.29M0.06%+147,075+42.6%Added
P.A.W. Capital Corp480,000$5.16M11.33%+130,000+37.1%Added
Scout Investments, Inc.444,292$4.70M0.12%−28,231−6.0%Reduced
Citadel Advisors LLC416,766$4.48M0.00%+36,307+9.5%Added
Bank of America Corp356,722$3.83M0.00%+153,801+75.8%Added
Gsa Capital Partners LLP339,293$3.65M0.29%−141,437−29.4%Reduced
Lisanti Capital Growth, LLC284,930$3.06M0.75%+284,930New
Roumell Asset Management, LLC267,766$2.88M5.42%−354,745−57.0%Reduced
Swiss National Bank244,900$2.63M0.00%+15,400+6.7%Added
Credit Suisse AG243,993$2.62M0.00%−11,896−4.6%Reduced
Advantage Alpha Capital Partners LP237,217$2.55M0.48%−268,438−53.1%Reduced
Ameriprise Financial Inc236,135$2.54M0.00%−13,355−5.4%Reduced
1492 Capital Management LLC231,148$2.48M1.38%+117,880+104.1%Added
Rhumbline Advisers216,900$2.33M0.00%+2,151+1.0%Added
American Century Companies Inc215,015$2.31M0.00%+51,137+31.2%Added
Voya Investment Management LLC196,898$2.12M0.00%−163,849−45.4%Reduced
Invesco Ltd.192,985$2.07M0.00%+20,315+11.8%Added
UBS Asset Management Americas Inc166,885$1.79M0.00%00.0%Unchanged
Qube Research & Technologies Ltd164,077$1.76M0.00%+119,814+270.7%Added
UBS Group AG155,439$1.67M0.00%−8,613−5.3%Reduced
Citigroup Inc147,368$1.58M0.00%+43,423+41.8%Added
Squarepoint Ops LLC142,616$1.53M0.01%+52,102+57.6%Added
Russell Investments Group, Ltd.140,200$1.51M0.00%+32,854+30.6%Added
Alliancebernstein L.P.139,511$1.50M0.00%+12,360+9.7%Added
Algert Global LLC133,348$1.43M0.06%+84,798+174.7%Added
Trexquant Investment LP131,611$1.41M0.03%+131,611New
Advisory Services Network, LLC129,762$1.39M0.03%+2,656+2.1%Added
Wells Fargo & Company128,880$1.39M0.00%+8,012+6.6%Added
Perkins Capital Management Inc128,325$1.38M1.15%00.0%Unchanged
Hilton Capital Management, LLC126,665$1.36M0.12%+70,965+127.4%Added
California State Teachers Retirement System125,187$1.35M0.00%−786−0.6%Reduced
Legal & General Group Plc123,309$1.33M0.00%+1,902+1.6%Added
Prelude Capital Management, LLC122,546$1.32M0.09%+77,574+172.5%Added
Arrowstreet Capital, Limited Partnership120,577$1.30M0.00%+120,577New
Woodmont Investment Counsel LLC120,558$1.30M0.11%−46,739−27.9%Reduced
Barclays PLC119,703$1.29M0.00%−89,213−42.7%Reduced
Schonfeld Strategic Advisors LLC116,800$1.26M0.01%+116,800New
Manatuck Hill Partners, LLC112,491$1.21M0.53%−420,800−78.9%Reduced
Harbor Capital Advisors, Inc.106,260$1.14M0.15%+83,087+358.6%Added
Deutsche Bank AG105,269$1.13M0.00%−4,542−4.1%Reduced
Millrace Asset Group, Inc.104,507$1.12M1.13%+104,507New
Wedge Capital Management L L P104,269$1.12M0.02%+13,189+14.5%Added
Cerity Partners LLC103,594$1.11M0.00%+3,094+3.1%Added
First Trust Advisors LP98,931$1.06M0.00%+56,722+134.4%Added
Ardsley Advisory Partners LP92,000$989.0K0.14%+92,000New
HighTower Advisors, LLC89,791$965.0K0.00%−7,595−7.8%Reduced
Price T Rowe Associates Inc83,460$898.0K0.00%+4,879+6.2%Added
Balyasny Asset Management LLC79,622$855.9K0.00%+79,622New
Raymond James Financial Services Advisors, Inc.74,112$796.7K0.00%+42,057+131.2%Added
Griffin Asset Management, Inc.73,710$792.4K0.09%−8,655−10.5%Reduced
Moody National Bank Trust Division73,584$791.0K0.06%−18,592−20.2%Reduced
Stephens Inc70,337$756.1K0.01%−1,235−1.7%Reduced
Toroso Investments, LLC69,388$745.9K0.01%+47,205+212.8%Added
MetLife Investment Management67,026$720.5K0.00%−3,647−5.2%Reduced
Manufacturers Life Insurance Company, The66,836$718.5K0.00%+724+1.1%Added
American International Group, Inc.66,723$717.3K0.00%−574−0.9%Reduced
Greenwood Capital Associates LLC65,740$706.7K0.09%−394−0.6%Reduced
Man Group plc65,065$699.4K0.00%+39,266+152.2%Added
Knights of Columbus Asset Advisors LLC63,165$679.0K0.05%−63,165−50.0%Reduced
Franklin Resources Inc62,380$670.6K0.00%−2,344−3.6%Reduced
SG Americas Securities, LLC61,337$659.0K0.00%+12,987+26.9%Added
Ensign Peak Advisors, Inc59,508$639.7K0.00%−3,002−4.8%Reduced
Jane Street Group, LLC59,428$638.9K0.00%−137,809−69.9%Reduced
Janus Henderson Group PLC59,048$633.0K0.00%+80.0%Added
Cornercap Investment Counsel Inc57,471$617.8K0.10%00.0%Unchanged