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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, Q4 2022

Institutional positions in Magnite, Inc. as of Dec 31, 2022. 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
231
+17 vs. Q3 2022
Shares held
93.3M
−9.87M (−9.6%) vs. Q3 2022
Total value
$988.1M
+$309.8M (+45.7%) vs. Q3 2022
New holders
47
73 more added
Sold out
30
69 more reduced

4 institutions that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2022: 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 holdersQ4 2022: 231 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 heldQ4 2022: $988.1M
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, Q4 2022

Shares, value and share of portfolio for each institution holding Magnite, Inc.; share changes are against Q3 2022.

Institutions holding MGNI in Q4 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Vanguard Group Inc12,436,899$131.7M0.00%+346,479+2.9%Added
Granahan Investment Management Inc10,453,950$110.7M3.39%+35,988+0.3%Added
BlackRock Inc.8,845,887$93.7M0.00%+294,549+3.4%Added
Edenbrook Capital, LLC6,893,079$73.0M25.22%+1,100,283+19.0%Added
FMR LLC6,129,531$64.9M0.01%+391,142+6.8%Added
Bank of New York Mellon Corp3,485,488$36.9M0.01%+519,574+17.5%Added
Nuveen Asset Management, LLC3,067,051$32.5M0.01%−14,061,226−82.1%Reduced
State Street Corp2,681,770$28.4M0.00%−53,783−2.0%Reduced
Geode Capital Management, LLC2,366,964$25.1M0.00%+57,062+2.5%Added
Dimensional Fund Advisors LP1,817,327$19.2M0.01%+426,186+30.6%Added
Kennedy Capital Management, Inc.1,624,459$17.2M0.49%+321,879+24.7%Added
Frontier Capital Management Co LLC1,586,308$16.8M0.18%+1,586,308New
Parallax Volatility Advisers, L.P.1,539,660$16.3M0.42%−391,100−20.3%Reduced
Wellington Management Group LLP1,483,900$15.7M0.00%+71,597+5.1%Added
Royce & Associates LP1,350,550$14.3M0.15%+314,200+30.3%Added
Nine Ten Capital Management LLC1,348,549$14.3M2.48%−742,863−35.5%Reduced
Victory Capital Management Inc1,257,147$13.3M0.02%+1,244,166+9,584.5%Added
Northern Trust Corp1,224,240$13.0M0.00%+27,201+2.3%Added
Norges Bank1,187,688$12.6M0.00%00.0%Unchanged
Builders Union LLP1,169,700$12.4M12.44%00.0%Unchanged
Renaissance Technologies LLC956,254$10.1M0.01%+430,700+82.0%Added
Charles Schwab Investment Management Inc905,995$9.59M0.00%+26,915+3.1%Added
Morgan Stanley900,379$9.54M0.00%+55,709+6.6%Added
Kopion Asset Management, LLC786,312$8.33M8.42%−89,309−10.2%Reduced
Williams Jones Wealth Management, LLC.736,665$7.80M0.13%−35,728−4.6%Reduced
Goldman Sachs Group Inc725,468$7.68M0.00%−180,635−19.9%Reduced
UBS Asset Management Americas Inc651,658$6.90M0.00%+38,744+6.3%Added
Citadel Advisors LLC639,851$6.78M0.01%−224,178−25.9%Reduced
Silvercrest Asset Management Group LLC637,992$6.76M0.05%+80,925+14.5%Added
Meros Investment Management, LP582,120$6.17M3.64%+198,168+51.6%Added
Scout Investments, Inc.514,349$5.45M0.11%−63,691−11.0%Reduced
King Luther Capital Management Corp504,987$5.35M0.03%−475−0.1%Reduced
P.A.W. Capital Corp480,000$5.08M13.88%−270,000−36.0%Reduced
S Squared Technology, LLC449,090$4.76M3.22%00.0%Unchanged
First Eagle Investment Management, LLC395,405$4.19M0.01%−13,464−3.3%Reduced
Manatuck Hill Partners, LLC387,500$4.10M1.94%+275,009+244.5%Added
Lisanti Capital Growth, LLC375,005$3.97M0.54%+375,005New
Citigroup Inc363,307$3.85M0.01%+80,125+28.3%Added
Fred Alger Management, LLC337,200$3.57M0.02%+1210.0%Added
Cannell Capital LLC331,767$3.51M0.71%+331,767New
Two Sigma Advisers, LP302,526$3.20M0.01%−39,200−11.5%Reduced
Nordea Investment Management AB289,266$3.08M0.00%−15,825−5.2%Reduced
Swiss National Bank288,900$3.06M0.00%+8,500+3.0%Added
Madison Asset Management, LLC278,974$2.95M0.05%−131,260−32.0%Reduced
Ameriprise Financial Inc270,649$2.87M0.00%−28,522−9.5%Reduced
New York State Common Retirement Fund259,300$2.75M0.00%+94,219+57.1%Added
Avalon Investment & Advisory248,894$2.64M0.08%+248,894New
Stephens Inc243,237$2.58M0.05%+44,751+22.5%Added
Rhumbline Advisers228,926$2.42M0.00%+12,110+5.6%Added
Roumell Asset Management, LLC201,555$2.13M5.28%−528,766−72.4%Reduced
EAM Investors, LLC194,204$2.06M0.43%+194,204New
Woodmont Investment Counsel LLC192,630$2.04M0.23%+2,235+1.2%Added
Tudor Investment Corp Et Al190,016$2.01M0.05%−159,885−45.7%Reduced
Castleark Management LLC186,750$1.98M0.10%+186,750New
Globeflex Capital L P183,652$1.94M0.25%−113,140−38.1%Reduced
Deutsche Bank AG178,761$1.89M0.00%+50,242+39.1%Added
Bank of America Corp169,782$1.80M0.00%−16,554−8.9%Reduced
Millrace Asset Group, Inc.164,781$1.75M1.98%+40,147+32.2%Added
California State Teachers Retirement System156,859$1.66M0.00%+3,012+2.0%Added
Fuller & Thaler Asset Management, Inc.151,830$1.61M0.01%+1,900+1.3%Added
Schonfeld Strategic Advisors LLC145,361$1.54M0.01%+130,661+888.9%Added
Cubist Systematic Strategies, LLC144,685$1.53M0.01%−326,345−69.3%Reduced
Perkins Capital Management Inc136,075$1.44M1.52%00.0%Unchanged
JPMorgan Chase & Co132,118$1.40M0.00%+15,049+12.9%Added
Alliancebernstein L.P.130,251$1.38M0.00%00.0%Unchanged
EAM Global Investors LLC128,347$1.36M0.35%+128,347New
Griffin Asset Management, Inc.122,609$1.30M0.20%−11,625−8.7%Reduced
State of Wisconsin Investment Board118,816$1.26M0.00%−100,730−45.9%Reduced
Trexquant Investment LP115,233$1.22M0.03%+72,939+172.5%Added
Advisory Services Network, LLC113,809$1.21M0.04%+28,083+32.8%Added
HighTower Advisors, LLC111,380$1.18M0.00%−4,484−3.9%Reduced
Credit Suisse AG108,625$1.15M0.00%−51,854−32.3%Reduced
Legal & General Group Plc108,258$1.15M0.00%+4,013+3.8%Added
Prelude Capital Management, LLC107,272$1.14M0.07%+107,272New
Royal Bank of Canada106,201$1.13M0.00%+8,243+8.4%Added
Assenagon Asset Management S.A.105,918$1.12M0.00%+105,918New
Jane Street Group, LLC100,850$1.07M0.00%+100,850New
Invesco Ltd.100,661$1.07M0.00%+68+0.1%Added
Jump Financial, LLC100,497$1.06M0.06%−29,862−22.9%Reduced
Aj Wealth Strategies, LLC100,000$1.06M0.06%+35,000+53.8%Added
Arrowstreet Capital, Limited Partnership98,394$1.04M0.00%+98,394New
D. E. Shaw & Co., Inc.97,767$1.04M0.00%+81,153+488.5%Added
Two Sigma Investments, LP97,039$1.03M0.00%−307,955−76.0%Reduced
ClariVest Asset Management LLC95,625$1.01M0.05%−74−0.1%Reduced
HSBC Holdings PLC94,711$988.3K0.00%−1,800−1.9%Reduced
Greenwood Capital Associates LLC84,182$891.5K0.15%+103+0.1%Added
UBS Group AG80,732$855.0K0.00%+55,447+219.3%Added
Janney Montgomery Scott LLC78,683$833.0K0.00%+78,683New
MetLife Investment Management69,690$738.0K0.01%00.0%Unchanged
Twinbeech Capital LP68,986$730.6K0.01%+47,808+225.7%Added
Moody National Bank Trust Division65,376$692.0K0.06%+8,700+15.4%Added
Russell Investments Group, Ltd.63,500$672.5K0.00%00.0%Unchanged
Knights of Columbus Asset Advisors LLC63,165$668.9K0.07%00.0%Unchanged
American International Group, Inc.62,606$663.0K0.00%+466+0.7%Added
Ensign Peak Advisors, Inc62,360$660.4K0.00%+27,700+79.9%Added
Price T Rowe Associates Inc59,781$633.0K0.00%−1,124−1.8%Reduced
Mirae Asset Global Investments Co., Ltd.58,167$616.0K0.00%+4,580+8.5%Added
Manufacturers Life Insurance Company, The50,971$539.8K0.00%−36−0.1%Reduced
Voya Investment Management LLC50,397$533.7K0.00%−230,304−82.0%Reduced
CIBC World Markets Inc.48,796$517.0K0.00%00.0%Unchanged