Magnite Inc (MGNI) Ownership

15.36 ↓0.24 (-1.54%)

As of December 31, 1969, 7:00pm EST.

Institutions
Mutual Funds

Institutional Ownership

Vanguard Group Inc is the biggest individual institutional holder of Magnite Inc (MGNI), owning a total of 13.6 million shares. Combined, the top 44 institutional holders of MGNI own 85.46% of the company with a total of 120.2 million shares.

In the latest ownership report on December 31st 2024, the top 44 institutional holders increased their combined ownership of MGNI by 7.4 million shares. 11 institutions bought 12,481,006 total additional shares and increased their ownership by an average of 62.47%. However 10 institutions sold 5,064,391 total shares and decreased their ownership by an average of 15.19%.

Overall this is a positive sign as the number of shares owned by the top 20 institutional holders of Magnite increased by a net total of 7,416,615 in the latest quarter.

Institution Ownership Chart

Latest Institutional Ownership Changes

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
Vanguard Group Inc	9.623%	1.926%	13,605,104	257,032	2024-12-31
BlackRock Inc	7.192%	3.239%	10,167,243	319,005	2024-12-31
Capital Research Global Investors	5.464%	0.000%	7,725,235	7,725,235	2024-12-31
Wellington Management Company LLP	4.973%	6.844%	7,030,011	450,341	2024-12-31
Dimensional Fund Advisors, Inc.	3.908%	3.185%	5,524,643	170,532	2024-12-31
Boston Partners Global Investors, Inc	3.364%	39.079%	4,756,323	1,336,458	2024-12-31
Nuveen Asset Management, LLC	2.789%	-4.205%	3,942,780	-173,082	2024-12-31
Granahan Investment Management Inc..	2.556%	-9.689%	3,613,084	-387,635	2024-12-31
Driehaus Capital Management LLC	2.347%	-2.878%	3,318,493	-98,335	2024-12-31
Nine Ten Capital Management LLC	2.204%	18.841%	3,115,849	493,983	2024-12-31
Edenbrook Capital LLC	2.195%	-11.211%	3,103,542	-391,853	2024-12-31
Geode Capital Management, LLC	2.092%	-0.361%	2,957,578	-10,708	2024-12-31
State Street Corp	2.081%	-3.651%	2,942,130	-111,474	2024-12-31
Bank of New York Mellon Corp	1.783%	-11.984%	2,520,890	-343,243	2024-12-31
Nomura Asset Management Co Ltd	1.325%	8.511%	1,873,835	146,974	2024-12-31
UBS Group AG	1.198%	596.890%	1,693,651	1,450,621	2024-12-31
Northern Trust Corp	1.173%	1.297%	1,658,535	21,230	2024-12-31
FMR Inc	1.142%	-57.082%	1,614,777	-2,147,692	2024-12-31
Royce & Associates, LP	1.130%	7.364%	1,597,896	109,595	2024-12-31
JPMorgan Chase & Co	1.069%	-47.039%	1,511,439	-1,342,445	2024-12-31
Kennedy Capital Management Inc	1.040%	-3.792%	1,469,767	-57,924	2024-12-31

Top Institutions

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
Vanguard Group Inc	9.623%	1.926%	13,605,104	257,032	2024-12-31
BlackRock Inc	7.192%	3.239%	10,167,243	319,005	2024-12-31
Capital Research Global Investors	5.464%	0.000%	7,725,235	7,725,235	2024-12-31
Wellington Management Company LLP	4.973%	6.844%	7,030,011	450,341	2024-12-31
Dimensional Fund Advisors, Inc.	3.908%	3.185%	5,524,643	170,532	2024-12-31
Boston Partners Global Investors, Inc	3.364%	39.079%	4,756,323	1,336,458	2024-12-31
Rubric Capital Management LP	2.902%	80.667%	4,000,000	1,785,978	2023-09-30
Nuveen Asset Management, LLC	2.789%	-4.205%	3,942,780	-173,082	2024-12-31
Marshall Wace Asset Management Ltd	2.590%	133.679%	3,644,267	2,084,747	2024-09-30
Granahan Investment Management Inc..	2.556%	-9.689%	3,613,084	-387,635	2024-12-31
Driehaus Capital Management LLC	2.347%	-2.878%	3,318,493	-98,335	2024-12-31
Nine Ten Capital Management LLC	2.204%	18.841%	3,115,849	493,983	2024-12-31
Edenbrook Capital LLC	2.195%	-11.211%	3,103,542	-391,853	2024-12-31
State Street Corporation	2.157%	2.662%	3,044,862	78,938	2024-03-31
Geode Capital Management, LLC	2.092%	-0.361%	2,957,578	-10,708	2024-12-31
State Street Corp	2.081%	-3.651%	2,942,130	-111,474	2024-12-31
Bank of New York Mellon Corp	1.783%	-11.984%	2,520,890	-343,243	2024-12-31
Burgundy Asset Management Ltd	1.755%	1.066%	2,457,031	25,921	2024-03-31
Nomura Asset Management Co Ltd	1.325%	8.511%	1,873,835	146,974	2024-12-31
Frontier Capital Management CO Inc	1.306%	-33.156%	1,789,159	-887,458	2023-06-30
UBS Group AG	1.198%	596.890%	1,693,651	1,450,621	2024-12-31
Northern Trust Corp	1.173%	1.297%	1,658,535	21,230	2024-12-31
FMR Inc	1.142%	-57.082%	1,614,777	-2,147,692	2024-12-31
Royce & Associates, LP	1.130%	7.364%	1,597,896	109,595	2024-12-31
JPMorgan Chase & Co	1.069%	-47.039%	1,511,439	-1,342,445	2024-12-31
Royce & Associates, LP USD	1.058%	5.199%	1,488,301	73,555	2024-09-30
Kennedy Capital Management Inc	1.040%	-3.792%	1,469,767	-57,924	2024-12-31
Morgan Stanley - Brokerage Accounts	1.028%	-15.046%	1,446,502	-256,190	2024-06-30
Intrinsic Edge Capital Management, LLC	0.954%	0.000%	1,342,403	1,342,403	2024-09-30
Victory Capital Management Inc.	0.953%	2.886%	1,340,705	37,601	2024-09-30
Goldman Sachs Group Inc	0.856%	-30.548%	1,197,911	-526,883	2024-03-31
NORGES BANK	0.876%	-0.257%	1,187,688	-3,054	2022-12-31
Builders Union LLP	0.863%	0.000%	1,169,700	0	2022-12-31
Parallax Volatility Advisers, LLC	0.814%	-33.859%	1,139,705	-583,432	2023-12-31
Silvercrest Asset Management Group LLC	0.766%	26.653%	1,081,100	227,505	2024-06-30
Meros Investment Management, LP	0.740%	1.317%	1,044,209	13,570	2024-06-30
Kopion Asset Management, LLC	0.732%	-5.771%	1,024,311	-62,730	2024-03-31
Nordea Investment Mgmt Bank Demark A/s	0.741%	-3.045%	1,014,367	-31,860	2023-06-30
Renaissance Technologies Corp	0.714%	81.952%	956,254	430,700	2022-12-31
Charles Schwab Investment Management Inc	0.675%	1.939%	924,670	17,586	2023-06-30
Williams Jones Wealth Management, LLC	0.671%	11.971%	918,205	98,169	2023-06-30
Penn Capital Management Company LLC	0.671%	12.243%	918,093	100,145	2023-06-30
Citadel Advisors Llc	0.632%	35.166%	864,861	225,010	2023-03-31
Bank of America Corp	0.357%	41.358%	504,255	147,533	2024-06-30

Mutual Fund Ownership

American Funds SMALLCAP World A is the biggest individual fund holder of Magnite Inc (MGNI), owning a total of 11.4 million shares. Combined, the top 58 mutual fund holders of MGNI own 61.98% of the company with a total of 87.1 million shares.

In the latest ownership report on April 30th 2025, the top 58 fund holders increased their combined ownership of MGNI by 353 shares. 2 funds bought 3,962 total additional shares and increased their ownership by an average of 0.24%. However 1 funds sold 3,609 total shares and decreased their ownership by an average of 0.38%.

Overall this is a positive sign as the number of shares owned by the top 20 mutual funds holding Magnite increased by a net total of 353 in the latest report.

Mutual Funds Chart

Latest Mutual Fund Ownership Changes

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
iShares Russell 2000 ETF	2.203%	0.017%	3,114,934	526	2025-04-30
iShares Russell 2000 Growth ETF	0.707%	0.000%	999,244	0	2025-04-30
Pacer US Small Cap Cash Cows 100 ETF	0.670%	-0.380%	946,969	-3,609	2025-04-30
Dimensional US Targeted Value ETF	0.575%	0.000%	812,651	0	2025-04-30
State St Russell Sm/Mid Cp® Indx NL Cl C	0.521%	0.469%	736,442	3,436	2025-04-30

Top Mutual Funds

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
American Funds SMALLCAP World A	8.054%	64.605%	11,386,959	4,469,215	2025-03-31
Fidelity Advisor® Growth Opps M	3.834%	14.486%	5,285,531	668,800	2023-11-30
Vanguard Total Stock Mkt Idx Inv	2.986%	0.422%	4,221,932	17,725	2025-03-31
Vanguard US Total Market Shares ETF	2.908%	0.102%	4,156,415	4,237	2024-09-30
Vanguard Instl Ttl Stck Mkt Idx Tr	2.880%	3.616%	3,969,800	138,551	2023-03-31
Vanguard Small Cap Index	2.394%	-0.801%	3,385,110	-27,342	2025-03-31
iShares Russell 2000 ETF	2.203%	0.017%	3,114,934	526	2025-04-30
Fidelity Advisor Growth Opps M	1.551%	-24.378%	2,182,331	-703,500	2024-10-31
American Century Small Cap Growth Inv	1.458%	0.000%	2,061,626	2,061,626	2025-03-31
American Century U.S. Small Cap Growth	1.458%	0.000%	2,061,626	2,061,626	2025-03-31
Vanguard Institutional Extnd Mkt Idx Tr	1.376%	2.798%	1,945,899	52,972	2025-03-31
Vanguard Small Cap Growth Index Inv	1.341%	-0.978%	1,895,303	-18,718	2025-03-31
Fidelity Select Communication Services	1.252%	-1.541%	1,769,900	-27,700	2025-03-31
Vanguard Extended Market Index Investor	1.187%	0.344%	1,625,801	5,568	2023-08-31
American Funds IS® Global Small Cap 1	1.084%	89.861%	1,533,111	725,620	2025-03-31
CREF Stock R1	1.028%	-8.597%	1,453,741	-136,733	2025-02-28
CREF Stock R3	1.017%	-8.597%	1,453,741	-136,733	2025-02-28
UBS: US Equity Small Cap Growth	0.936%	0.000%	1,310,005	0	2023-09-30
Fidelity® Small Cap Index	0.936%	2.744%	1,290,416	34,463	2023-10-31
Fidelity Small Cap Index	0.883%	0.643%	1,248,163	7,971	2025-02-28
Kennedy Small Cap Growth	0.733%	-1.433%	1,025,972	-14,915	2023-12-31
JNL Multi-Manager Small Cap Growth A	0.704%	-7.730%	1,006,655	-84,333	2024-12-31
Frontier Small Cap Growth	0.737%	49.792%	999,507	332,242	2023-03-31
iShares Russell 2000 Growth ETF	0.707%	0.000%	999,244	0	2025-04-30
Fidelity Small Cap Growth	0.694%	0.000%	980,500	980,500	2025-02-28
Stephens Small Cap Growth	0.672%	-4.614%	950,656	-45,988	2025-03-31
Integrity Small-Cap Value Comp	0.679%	-5.000%	950,000	-50,000	2024-03-31
Victory Integrity Small-Cap Value A	0.679%	-5.000%	950,000	-50,000	2024-03-31
Pacer US Small Cap Cash Cows 100 ETF	0.670%	-0.380%	946,969	-3,609	2025-04-30
Fidelity VIP Mid Cap Initial	0.657%	0.000%	939,700	939,700	2025-02-28
Granahan SMID Select	0.651%	-0.377%	919,129	-3,481	2024-06-30
Granahan US SMID Select I GBP Acc	0.651%	-6.834%	919,129	-67,418	2024-06-30
DFA US Targeted Value I	0.638%	9.540%	901,278	78,494	2025-03-31
Nuveen Quant Small Cap Equity R6	0.594%	0.000%	839,070	0	2025-02-28
VIP Growth Opportunities Init	0.600%	14.417%	826,950	104,200	2023-11-30
Dimensional US Targeted Value ETF	0.575%	0.000%	812,651	0	2025-04-30
Fidelity® VIP Growth Opportunities Init	0.591%	-10.627%	809,850	-96,300	2023-07-31
Granahan US Focused Growth A USD Acc	0.570%	-11.199%	772,301	-97,400	2023-05-31
State St Russell Sm/Mid Cp® Indx NL Cl C	0.521%	0.469%	736,442	3,436	2025-04-30
State St Russell Sm/Mid Cp® Indx SL Cl I	0.513%	-5.150%	733,006	-39,800	2025-03-31
Nomura Global Multi Theme Mother Fund	0.514%	0.000%	727,300	0	2024-12-06
iShares Russell 2000 Value ETF	0.508%	-0.132%	711,211	-942	2024-05-30
Kennedy Extended Small Cap	0.499%	-5.625%	703,550	-41,930	2024-06-30
Embark Small Cap Equity Institutional	0.492%	-14.365%	703,328	-117,979	2025-02-28
Heptagon Driehaus US Micro Cap Eq C$ Acc	0.489%	1.409%	699,011	9,711	2024-12-31
Fidelity Extended Market Index	0.479%	-1.455%	685,139	-10,113	2025-01-31
MainStay WMC Small Companies I	0.503%	17.685%	670,791	100,800	2022-11-30
Fidelity VIP Growth Opportunities Init	0.474%	-11.029%	669,550	-83,000	2024-06-30
Royce Small-Cap Opportunity Invmt	0.465%	-12.951%	651,481	-96,926	2024-03-31
Penn Capital Small Cap Equity	0.458%	0.000%	644,004	0	2024-09-30
Fidelity® Extended Market Index	0.470%	0.000%	626,506	0	2022-11-30
M&G (ACS) Granahan US Sm Cp Gr GBPZ1AAcc	0.442%	-26.310%	622,254	-222,169	2024-01-31
Pier Capital Small Cap Growth Equity	0.456%	-2.127%	608,352	-13,218	2022-06-30
Schwab US Small-Cap ETF™	0.431%	0.000%	605,654	0	2025-01-31
DFA US Small Cap I	0.424%	0.000%	596,763	0	2024-11-30
Vanguard Russell 2000 ETF	0.421%	3.194%	591,855	18,319	2024-11-30
American Beacon Small Cp Val R5	0.417%	0.000%	586,429	0	2024-11-30
Roumell Opportunistic Value Instl	0.439%	18.170%	585,321	90,000	2022-06-30