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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 24 sales; 311 institutions reported holding it in 13F filings for Q2 2026, worth $2.69B in total; no superinvestor holds it.

Q2 2026 vs. Q1 2026

How the institutions holding Magnite, Inc. changed between Q1 2026 and Q2 2026.

All holders in Q2 2026All holders in Q1 2026

13F holders of MGNI: Q1 2026 compared with Q2 2026
MeasureQ1 2026Of which not filed for Q2 2026Q2 2026Change
Holders2974311+18
Shares131.6M66.3K141.9M+10.4M (+7.9%)
Value$1.56B$787.4K$2.69B+$1.13B (+72.2%)

4 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (55)

Institutions that held Magnite, Inc. at the end of Q2 2026 but not at the end of Q1 2026.

Institutions new to MGNI in Q2 2026
InstitutionSharesValue% of portfolio
Ameriprise Financial Inc619,573$11.8M0.00%
Bank of Montreal533,757$10.1M0.00%
EVR Research LP480,000$9.11M4.50%
Jump Financial, LLC428,036$8.12M0.07%
Trexquant Investment LP333,429$6.33M0.04%
Alyeska Investment Group, L.P.326,839$6.20M0.02%
Pillsbury Lake Capital LLC217,753$4.13M1.13%
Occam Crest Management LP195,000$3.85M2.12%
Great Lakes Advisors, LLC176,615$3.35M0.03%
Dean Investment Associates, LLC167,927$3.19M0.42%
Clough Capital Partners L P159,586$3.03M0.25%
Concentric Capital Strategies, LP146,698$2.78M0.17%
Dean Capital Management121,971$2.32M0.84%
Winton Group Ltd121,900$2.31M0.07%
State of New Jersey Common Pension Fund D86,600$1.64M0.01%
Citizens Financial Group Inc82,383$1.56M0.02%
Jupiter Topco LLC58,423$1.11M0.00%
Boothbay Fund Management, LLC42,705$810.5K0.02%
Antipodes Partners Ltd41,477$787.2K0.01%
Jain Global LLC40,506$768.8K0.01%
D. E. Shaw & Co., Inc.35,719$677.9K0.00%
Neo Ivy Capital Management29,172$553.7K0.13%
CI Private Wealth, LLC25,326$480.7K0.00%
State of Wyoming22,273$422.7K0.04%
Lighthouse Investment Partners, LLC21,980$417.2K0.01%
Legacy Advisors, LLC19,967$379.0K0.04%
Quadrature Capital Ltd19,145$363.4K0.00%
Mangrove Partners19,086$362.3K0.02%
B. Riley Financial, Inc.16,778$318.4K0.07%
Elevatus Welath Management16,759$318.1K0.08%
Wealth Enhancement Advisory Services, LLC14,161$288.0K0.00%
Neuberger Berman Group LLC12,916$245.1K0.00%
Intrust Bank NA11,147$211.6K0.02%
Persistent Asset Partners Ltd5,815$110.4K0.03%
Harbor Investment Advisory, LLC3,265$62.0K0.00%
Nykredit A/S1,306$24.8K0.00%
National Bank of Canada774$14.7K0.00%
Evelyn Partners Group Ltd703$13.3K0.00%
TD Waterhouse Canada Inc.115$2.33K0.00%
Entrust Financial LLC100$1.90K0.00%
Federation des caisses Desjardins du Quebec93$1.76K0.00%
Quarry LP89$1.69K0.00%
Global Retirement Partners, LLC80$1.52K0.00%
UMA Financial Services, Inc.53$1.01K0.00%
Action Point Financial Planning, LLC43$7980.00%
Silver Grove Financial Group, Inc.39$7400.00%
Cornerstone Financial Management LLC34$6450.00%
Buck Wealth Strategies, LLC18$3420.00%
Creative Capital Management Investments LLC7$1330.00%
HFM Investment Advisors, LLC4$760.00%
LRI Investments, LLC2$380.00%
DecisionPoint Financial, LLC1$210.00%
Maryland Capital Advisors Inc.1$190.00%
Navigoe, LLC3$00.00%
Coppell Advisory Solutions LLC168––

Sold out (37)

Institutions that held Magnite, Inc. at the end of Q1 2026 and filed for Q2 2026 without it.

Institutions that sold out of MGNI in Q2 2026
InstitutionShares, Q1 2026Value, Q1 2026
No Street GP LP1,628,248$19.3M
Pacer Advisors, Inc.501,578$5.96M
Capital World Investors456,672$5.43M
Wedge Capital Management L L P189,767$2.25M
Walleye Trading LLC179,394$2.13M
Brevan Howard Capital Management LP133,245$1.58M
Twinbeech Capital LP132,379$1.57M
Holocene Advisors, LP101,973$1.21M
Teachers Retirement System of the State of Kentucky76,813$913.0K
Tudor Investment Corp Et Al73,645$874.9K
Jennison Associates LLC57,849$687.2K
Natixis42,100$500.1K
Group One Trading, L.P.24,999$297.0K
Entropy Technologies, LP24,761$294.2K
Dynamic Technology Lab Private Ltd22,162$263.3K
Virtu Financial LLC20,044$238.0K
STRS Ohio18,500$219.8K
Centiva Capital, LP17,000$202.0K
Cambridge Investment Research Advisors, Inc.15,022$178.0K
Gsa Capital Partners LLP13,347$159.0K
Bayforest Capital Ltd13,225$157.1K
Gotham Asset Management, LLC12,885$153.1K
OP Asset Management Ltd12,621$149.9K
Sciencast Management LP11,704$139.0K
Simplex Trading, LLC11,316$134.4K
Ritholtz Wealth Management10,334$122.8K
JustInvest LLC10,311$122.5K
Optiver Holding B.V.5,579$66.3K
MCF Advisors LLC1,500$17.8K
MAI Capital Management1,145$13.6K
Essential Partners LLC696$8.27K
Root Financial Partners, LLC228$2.71K
IFP Advisors, Inc49$582
GWM Advisors LLC35$416
Twin Peaks Wealth Advisors, LLC29$345
Wealth Preservation Advisors, LLC8$95
Kilter Group LLC1$12

Not filed for Q2 2026 yet (4)

Institutions that held Magnite, Inc. at the end of Q1 2026 and haven't filed a 13F for Q2 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding MGNI in Q1 2026 that haven't filed for Q2 2026
InstitutionShares, Q1 2026Value, Q1 2026
Janus Henderson Group PLC58,423$693.8K
CWM, LLC7,016$83.3K
Evelyn Partners Investment Management Services Ltd703$8.35K
McIlrath & Eck, LLC160$1.90K