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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 2021 vs. Q3 2021

How the institutions holding Magnite, Inc. changed between Q3 2021 and Q4 2021.

All holders in Q4 2021All holders in Q3 2021

13F holders of MGNI: Q3 2021 compared with Q4 2021
MeasureQ3 2021Of which not filed for Q4 2021Q4 2021Change
Holders2791248−30
Shares90.1M1089.6M−532.7K (−0.6%)
Value$2.52B$0$1.57B−$955.6M (−37.9%)

1 institution that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so the changes leave them out.

New holders (43)

Institutions that held Magnite, Inc. at the end of Q4 2021 but not at the end of Q3 2021.

Institutions new to MGNI in Q4 2021
InstitutionSharesValue% of portfolio
Allspring Global Investments Holdings, LLC3,033,364$53.1M0.06%
Renaissance Technologies LLC822,864$14.4M0.02%
Marshall Wace, LLP490,207$8.58M0.02%
Equitec Proprietary Markets, LLC372,707$6.52M3.47%
Roumell Asset Management, LLC240,000$4.20M5.60%
Public Sector Pension Investment Board223,000$3.90M0.02%
Meros Investment Management, LP204,745$3.58M2.62%
Kerrisdale Advisers, LLC114,923$2.01M0.42%
Quantbot Technologies LP87,689$1.53M0.12%
Simplex Trading, LLC75,473$1.32M0.04%
Tudor Investment Corp Et Al63,485$1.11M0.02%
B. Riley Asset Management, LLC52,774$924.0K0.49%
Ergoteles LLC45,652$799.0K0.03%
Holocene Advisors, LP34,647$606.0K0.00%
Caption Management, LLC26,500$465.0K0.03%
New York Life Investments Alternatives25,750$451.0K0.30%
Alpha Paradigm Partners, LLC25,059$439.0K0.18%
Natixis19,000$332.0K0.00%
Qube Research & Technologies Ltd18,874$330.0K0.00%
Graham Capital Management, L.P.16,213$283.0K0.02%
Gsa Capital Partners LLP15,821$277.0K0.03%
Ensign Peak Advisors, Inc15,630$274.0K0.00%
Diametric Capital, LP14,802$259.0K0.20%
Campbell & CO Investment Adviser LLC13,700$240.0K0.08%
CastleKnight Management LP12,100$212.0K0.08%
Wolverine Trading, LLC10,941$196.0K0.00%
Lazard Asset Management LLC9,280$162.0K0.00%
SG3 Management, LLC8,500$149.0K0.02%
Cambridge Trust Co1,900$33.0K0.00%
High Net Worth Advisory Group LLC1,750$31.0K0.01%
Dark Forest Capital Management LP1,348$24.0K0.01%
Next Capital Management LLC1,321$23.0K0.02%
Steward Partners Investment Advisory, LLC1,000$18.0K0.00%
SJS Investment Consulting Inc.600$11.0K0.00%
Pinebridge Investments, L.P.500$9.00K0.00%
CWM, LLC203$4.00K0.00%
Rise Advisors, LLC150$2.63K0.00%
Motley Fool Asset Management LLC62$1.00K0.00%
Amplius Wealth Advisors, LLC100$1.00K0.00%
Covestor Ltd36$1.00K0.00%
McDonald Partners LLC47$8230.00%
Absolute Capital Management, LLC47$8230.00%
Castleview Partners, LLC15,487––

Sold out (73)

Institutions that held Magnite, Inc. at the end of Q3 2021 and filed for Q4 2021 without it.

Institutions that sold out of MGNI in Q4 2021
InstitutionShares, Q3 2021Value, Q3 2021
Hood River Capital Management LLC808,545$22.6M
Hidden Lake Asset Management LP761,590$21.3M
Truxt Investmentos Ltda.723,500$20.3M
Alta Park Capital, LP514,228$14.4M
M&G Investment Management Ltd325,659$9.12M
Primecap Management Co266,500$7.46M
Polar Asset Management Partners Inc.176,400$4.94M
Kent Lake Capital LLC150,000$4.20M
Lisanti Capital Growth, LLC146,540$4.10M
EMJ Capital Ltd.99,350$2.78M
Kettle Hill Capital Management, LLC96,491$2.70M
FWL Investment Management, LLC94,402$2.64M
VisionPoint Advisory Group, LLC108,126$2.45M
Old Mission Capital LLC68,355$1.91M
TCW Group Inc61,261$1.72M
Mutual of America Capital Management LLC55,856$1.56M
Calamos Advisors LLC52,468$1.47M
NN Investment Partners Holdings N.V.50,800$1.42M
Cannon Global Investment Management, LLC45,000$1.26M
G2 Investment Partners Management LLC40,000$1.12M
Healthcare of Ontario Pension Plan Trust Fund36,000$1.01M
AQR Capital Management LLC33,265$931.0K
Oppenheimer & Co Inc32,200$902.0K
Paloma Partners Management Co29,652$831.0K
Prelude Capital Management, LLC23,412$656.0K
SEI Investments Co22,696$633.0K
Stony Point Wealth Management Inc.21,888$613.0K
Seven Eight Capital, LP21,373$598.0K
First Republic Investment Management, Inc.20,726$580.0K
Kamunting Street Capital Management, L.P.18,767$525.0K
Two Sigma Securities, LLC16,815$471.0K
Blueshift Asset Management, LLC13,144$368.0K
Wedbush Securities Inc12,363$346.0K
Algert Global LLC11,964$335.0K
Cerity Partners LLC11,848$332.0K
Golden Green, Inc.10,171$285.0K
Tocqueville Asset Management L.P.10,000$280.0K
Creative Planning9,327$261.0K
Essex Investment Management Co LLC9,049$253.0K
TownSquare Capital, LLC8,663$243.0K
V Wealth Advisors LLC8,500$238.0K
Pictet Asset Management SA8,300$232.0K
Weil Company, Inc.8,104$227.0K
Gluskin Sheff & Assoc Inc8,021$225.0K
Aigen Investment Management, LP7,864$220.0K
Mackenzie Financial Corp7,415$208.0K
AdvisorNet Financial, Inc7,400$207.0K
Raymond James Financial Services Advisors, Inc.7,407$207.0K
Centiva Capital, LP7,146$201.0K
O'Shaughnessy Asset Management, LLC4,935$138.0K
Exane Derivatives2,928$82.0K
Geneos Wealth Management Inc.2,600$73.0K
Sterling Investment Advisors, Ltd.1,200$34.0K
Kowal Investment Group, LLC1,167$33.0K
Creative Financial Designs Inc1,100$31.0K
Parkside Financial Bank & Trust1,000$28.0K
TFC Financial Management601$17.0K
Bedel Financial Consulting, Inc.539$15.0K
Sandy Spring Bank454$13.0K
JFS Wealth Advisors, LLC250$7.00K
MCF Advisors LLC200$6.00K
NVWM, LLC225$6.00K
Joseph P. Lucia & Associates, LLC230$6.00K
Global Wealth Management Investment Advisory, Inc.175$5.00K
Ranger Investment Management, L.P.117$3.00K
FinTrust Capital Advisors, LLC96$3.00K
Private Capital Group, LLC120$3.00K
RWM Asset Management, LLC100$3.00K
Ellevest, Inc.33$1.00K
Parallel Advisors, LLC36$1.00K
Liberty Wealth Management LLC40$1.00K
Bellevue Asset Management, LLC50$1.00K
CKW Financial Group15$0

Not filed for Q4 2021 yet (1)

Institutions that held Magnite, Inc. at the end of Q3 2021 and haven't filed a 13F for Q4 2021. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding MGNI in Q3 2021 that haven't filed for Q4 2021
InstitutionShares, Q3 2021Value, Q3 2021
Berman Capital Advisors, LLC10$0