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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.

Q4 2023 vs. Q3 2023

How the institutions holding Magnite, Inc. changed between Q3 2023 and Q4 2023.

All holders in Q4 2023All holders in Q3 2023

13F holders of MGNI: Q3 2023 compared with Q4 2023
MeasureQ3 2023Of which not filed for Q4 2023Q4 2023Change
Holders2151217+3
Shares103.5M14.1K102.7M−805.1K (−0.8%)
Value$780.6M$106.5K$959.0M+$178.5M (+22.9%)

1 institution that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so the changes leave them out.

New holders (31)

Institutions that held Magnite, Inc. at the end of Q4 2023 but not at the end of Q3 2023.

Institutions new to MGNI in Q4 2023
InstitutionSharesValue% of portfolio
Grizzlyrock Capital, LLC712,630$6.66M5.00%
Advantage Alpha Capital Partners LP505,655$4.72M0.89%
Gsa Capital Partners LLP480,730$4.49M0.38%
Marshall Wace, LLP198,730$1.86M0.00%
1492 Capital Management LLC113,268$1.06M0.60%
Wedge Capital Management L L P91,080$850.7K0.02%
Cornercap Investment Counsel Inc57,471$536.8K0.09%
Landscape Capital Management, L.L.C.35,890$335.2K0.03%
Raymond James Financial Services Advisors, Inc.32,055$299.4K0.00%
Graham Capital Management, L.P.28,816$269.1K0.01%
Entropy Technologies, LP22,934$214.2K0.04%
Toroso Investments, LLC22,183$207.2K0.00%
Ledgewood Wealth Advisors, LLC19,795$184.9K0.17%
Aigen Investment Management, LP17,597$164.4K0.03%
West Tower Group, LLC17,058$159.3K0.32%
Mirabella Financial Services LLP15,470$144.5K0.02%
Centiva Capital, LP13,326$124.5K0.01%
HCR Wealth Advisors13,000$121.4K0.02%
Caption Management, LLC11,648$108.8K0.01%
Legato Capital Management LLC11,065$103.3K0.01%
Dynamic Technology Lab Private Ltd10,630$99.0K0.01%
EntryPoint Capital, LLC8,330$77.8K0.07%
Ancora Advisors, LLC8,000$74.7K0.00%
Cape Investment Advisory, Inc.2,705$25.3K0.01%
PEAK6 Investments LLC1,607$15.0K0.00%
Fortitude Family Office, LLC566$5.29K0.00%
Benjamin F. Edwards & Company, Inc.408$4.00K0.00%
McIlrath & Eck, LLC160$1.49K0.00%
Farther Finance Advisors, LLC40$3740.00%
Principal Securities, Inc.34$3180.00%
GAMMA Investing LLC10$890.00%

Sold out (28)

Institutions that held Magnite, Inc. at the end of Q3 2023 and filed for Q4 2023 without it.

Institutions that sold out of MGNI in Q4 2023
InstitutionShares, Q3 2023Value, Q3 2023
Rubric Capital Management LP4,000,000$30.2M
Driehaus Capital Management LLC795,157$6.00M
Madison Asset Management, LLC359,038$2.71M
Harspring Capital Management, LLC250,000$1.89M
First Eagle Investment Management, LLC225,379$1.70M
Twinbeech Capital LP121,329$914.8K
Millrace Asset Group, Inc.96,058$724.0K
Walleye Capital LLC25,204$190.0K
Seldon Capital LP24,400$184.0K
Engineers Gate Manager LP21,290$160.5K
State of Wyoming20,163$152.0K
Counterpoint Mutual Funds LLC17,379$131.0K
AQR Capital Management LLC16,496$124.4K
Bank of Montreal13,583$110.2K
Stifel Financial Corp10,955$82.6K
American Trust10,523$79.3K
Creative Planning5,865$44.2K
Johnson Financial Group, Inc.5,500$41.5K
Allspring Global Investments Holdings, LLC2,704$20.4K
Headinvest, LLC2,280$16.9K
Whittier Trust Co1,709$12.9K
Sugarloaf Wealth Management, LLC1,082$8.16K
Valley National Advisers Inc98$1.00K
Baker Avenue Asset Management, LP100$754
Concord Wealth Partners95$716
Manchester Capital Management LLC57$430
Authentikos Wealth Advisory, LLC38$287
PFG Private Wealth Management, LLC5$38

Not filed for Q4 2023 yet (1)

Institutions that held Magnite, Inc. at the end of Q3 2023 and haven't filed a 13F for Q4 2023. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding MGNI in Q3 2023 that haven't filed for Q4 2023
InstitutionShares, Q3 2023Value, Q3 2023
Connacht Asset Management LP14,119$106.5K