MGNI Insider Trading

Insider Trading Chart
Insider Trading History
Frequently Asked Questions
About

Insider Ownership Percentage: 3.20%

Insider Buying (Last 12 Months): $0.00

Insider Selling (Last 12 Months): $25,772,161.56

Magnite Insider Trading History Chart

Magnite Share Price & Price History

^$25.15

▼ -0.48 (-1.87%)

As of 09/18/2026 04:00 PM ET

Days: 30 | 90 | 365

Magnite Insider Trading History

Transaction Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
9/17/2026	Douglas S. Knopper	Director	Sell	37,337	$26.28	$981,216.36	51,136
9/17/2026	Paul Caine	Director	Sell	7,500	$26.50	$198,750.00	137,401
9/14/2026	David Buonasera	CTO	Sell	1,165	$24.00	$27,960.00	245,155
9/14/2026	Robert F Spillane	Director	Sell	10,363	$23.76	$246,224.88	57,715
9/11/2026	Katie Seitz Evans	Insider	Sell	13,997	$24.00	$335,928.00	441,800
9/10/2026	Aaron Saltz	Insider	Sell	40,000	$23.41	$936,400.00	224,389
9/10/2026	Paul Caine	Director	Sell	5,000	$23.53	$117,650.00	144,901
9/9/2026	Katie Seitz Evans	Insider	Sell	11,100	$23.46	$260,406.00	455,797
9/8/2026	Katie Seitz Evans	Insider	Sell	32,285	$23.63	$762,894.55	466,897
9/2/2026	David Buonasera	CTO	Sell	1,043	$25.00	$26,075.00	246,320
9/1/2026	David Buonasera	CTO	Sell	5,371	$23.42	$125,788.82	247,363
8/28/2026	Sarah Patricia Harden	Director	Sell	18,436	$24.00	$442,464.00	114,751
8/26/2026	Sarah Patricia Harden	Director	Sell	30,550	$23.31	$712,120.50	133,187
8/10/2026	Brian Gephart	CAO	Sell	12,479	$24.68	$307,981.72	106,117
8/10/2026	Paul Caine	Director	Sell	5,000	$24.35	$121,750.00	157,401
8/10/2026	Rachel Lam	Director	Sell	10,000	$24.16	$241,600.00	230,620
8/6/2026	David Buonasera	CTO	Sell	7,649	$23.46	$179,445.54	260,836
8/6/2026	Douglas S. Knopper	Director	Sell	37,337	$22.72	$848,296.64	88,473
8/6/2026	Katie Seitz Evans	Insider	Sell	20,000	$24.00	$480,000.00	496,840
8/6/2026	Michael G Barrett	CEO	Sell	293,968	$22.72	$6,678,952.96	403,074
8/6/2026	Sean Patrick Buckley	Insider	Sell	67,179	$24.49	$1,645,213.71	315,805
7/10/2026	Paul Caine	Director	Sell	5,000	$20.64	$103,200.00	162,401
7/7/2026	David Buonasera	CTO	Sell	1,224	$21.00	$25,704.00	268,485
7/7/2026	Sean Patrick Buckley	Insider	Sell	19,233	$21.03	$404,469.99	354,281
7/1/2026	David Buonasera	CTO	Sell	9,376	$20.00	$187,520.00	269,709
6/29/2026	Michael G Barrett	CEO	Sell	75,000	$19.50	$1,462,500.00	403,074
6/17/2026	David Buonasera	CTO	Sell	1,409	$19.00	$26,771.00	279,085
6/17/2026	Sean Patrick Buckley	Insider	Sell	19,233	$19.00	$365,427.00	373,514
6/16/2026	David Buonasera	CTO	Sell	11,233	$18.00	$202,194.00	280,494
6/16/2026	Douglas S. Knopper	Director	Sell	37,337	$18.10	$675,799.70	125,810
6/16/2026	Michael G Barrett	CEO	Sell	100,000	$17.50	$1,750,000.00	403,074
6/15/2026	David Buonasera	CTO	Sell	1,057	$17.00	$17,969.00	291,727
6/15/2026	Michael G Barrett	CEO	Sell	178,596	$16.59	$2,962,907.64	403,074
6/10/2026	David T. Pearson	Director	Sell	10,766	$15.65	$168,487.90	79,001
6/10/2026	Douglas S. Knopper	Director	Sell	10,766	$15.73	$169,349.18	163,147
6/1/2026	David Buonasera	CTO	Sell	1,409	$15.00	$21,135.00	292,784
5/19/2026	Robert F Spillane	Director	Sell	10,000	$13.33	$133,300.00	43,917
2/18/2026	Adam Lee Soroca	Insider	Sell	21,529	$12.00	$258,348.00	388,425
12/17/2025	Adam Lee Soroca	Insider	Sell	16,656	$17.00	$283,152.00	326,114
11/21/2025	Robert F Spillane	Director	Sell	12,500	$14.22	$177,750.00	53,917
11/18/2025	Adam Lee Soroca	Insider	Sell	10,857	$13.23	$143,638.11	326,114
11/18/2025	Sean Patrick Buckley	Insider	Sell	4,426	$13.36	$59,131.36	271,125
10/24/2025	Paul Caine	Director	Sell	5,000	$20.00	$100,000.00	153,603
9/19/2025	Aaron Saltz	Insider	Sell	8,522	$24.50	$208,789.00	215,079
9/19/2025	Paul Caine	Director	Sell	7,500	$25.00	$187,500.00	158,603
9/15/2025	Aaron Saltz	Insider	Sell	6,180	$23.94	$147,949.20	223,601
9/10/2025	Paul Caine	Director	Sell	5,000	$23.60	$118,000.00	166,103
9/8/2025	Sean Patrick Buckley	Insider	Sell	20,000	$25.56	$511,200.00	307,193
9/4/2025	Brian Gephart	CAO	Sell	27,671	$24.71	$683,750.41	92,898
9/3/2025	David Buonasera	CTO	Sell	2,950	$25.37	$74,841.50	238,629
9/2/2025	Adam Lee Soroca	Insider	Sell	24,986	$24.69	$616,904.34	346,393
8/29/2025	Aaron Saltz	Insider	Sell	12,403	$26.07	$323,346.21	229,781
8/27/2025	Katie Seitz Evans	Insider	Sell	21,509	$25.52	$548,909.68	394,089
8/26/2025	Diane Yu	Director	Sell	20,000	$25.23	$504,600.00	67,481
8/25/2025	Katie Seitz Evans	Insider	Sell	8,345	$26.00	$216,970.00	415,598
8/25/2025	Paul Caine	Director	Sell	7,500	$25.00	$187,500.00	171,103
8/19/2025	Adam Lee Soroca	Insider	Sell	10,579	$23.47	$248,289.13	346,393
8/19/2025	Sean Patrick Buckley	Insider	Sell	9,315	$23.42	$218,157.30	327,193
8/18/2025	Aaron Saltz	Insider	Sell	5,770	$23.85	$137,614.50	242,184
8/18/2025	Adam Lee Soroca	Insider	Sell	9,700	$23.85	$231,345.00	356,972
8/18/2025	Brian Gephart	CAO	Sell	2,961	$23.85	$70,619.85	120,569
8/18/2025	David Buonasera	CTO	Sell	7,834	$23.85	$186,840.90	241,579
8/18/2025	David Day	CFO	Sell	13,366	$23.85	$318,779.10	382,106
8/18/2025	Katie Seitz Evans	Insider	Sell	10,487	$23.85	$250,114.95	423,943
8/18/2025	Michael G Barrett	CEO	Sell	35,951	$23.85	$857,431.35	249,857
8/18/2025	Sean Patrick Buckley	Insider	Sell	10,886	$23.85	$259,631.10	336,508
8/14/2025	Aaron Saltz	Insider	Sell	13,860	$23.34	$323,492.40	247,954
8/12/2025	Rachel Lam	Director	Sell	15,000	$22.25	$333,750.00	226,822
8/11/2025	Paul Caine	Director	Sell	5,000	$22.29	$111,450.00	178,603
7/15/2025	Michael G Barrett	CEO	Sell	70,900	$23.27	$1,649,843.00	285,808
7/10/2025	Paul Caine	Director	Sell	5,000	$23.53	$117,650.00	183,603
7/3/2025	Adam Lee Soroca	Insider	Sell	42,584	$25.00	$1,064,600.00	366,672
6/26/2025	David Day	CFO	Sell	36,000	$20.95	$754,200.00	443,528
6/24/2025	Adam Lee Soroca	Insider	Sell	44,519	$20.00	$890,380.00	400,927
6/24/2025	David Day	CFO	Sell	35,000	$19.95	$698,250.00	443,528
6/24/2025	Michael G Barrett	CEO	Sell	300,000	$20.01	$6,003,000.00	356,708
6/24/2025	Paul Caine	Director	Sell	5,000	$20.00	$100,000.00	188,603
6/18/2025	David Day	CFO	Sell	38,146	$18.95	$722,866.70	443,528
6/18/2025	James Rossman	Director	Sell	137,007	$18.78	$2,572,991.46	93,679
6/18/2025	Michael G Barrett	CEO	Sell	30,000	$19.00	$570,000.00	656,708
6/16/2025	Aaron Saltz	Insider	Sell	16,788	$17.50	$293,790.00	279,388
6/16/2025	Katie Seitz Evans	Insider	Sell	20,000	$18.50	$370,000.00	442,788
6/16/2025	Michael G Barrett	CEO	Sell	45,000	$17.76	$799,200.00	686,708
6/10/2025	Robert F Spillane	Director	Sell	15,000	$17.57	$263,550.00	66,417
6/6/2025	Adam Lee Soroca	Insider	Sell	8,328	$17.70	$147,405.60	437,117
6/6/2025	David T. Pearson	Director	Sell	11,512	$17.60	$202,611.20	75,969
6/5/2025	Katie Seitz Evans	Insider	Sell	35,000	$17.36	$607,600.00	442,788
6/4/2025	Aaron Saltz	Insider	Sell	15,328	$16.71	$256,130.88	296,176
5/27/2025	David Buonasera	CTO	Sell	8,742	$16.00	$139,872.00	258,702
5/23/2025	David Buonasera	CTO	Sell	3,653	$15.03	$54,904.59	267,444
5/20/2025	Adam Lee Soroca	Insider	Sell	8,328	$17.00	$141,576.00	437,117
5/16/2025	Adam Lee Soroca	Insider	Sell	11,366	$15.73	$178,787.18	437,117
5/16/2025	Sean Patrick Buckley	Insider	Sell	9,692	$15.73	$152,455.16	347,394
5/12/2025	Brian Gephart	CAO	Sell	6,334	$16.16	$102,357.44	126,575
3/3/2025	Adam Lee Soroca	Insider	Sell	15,499	$15.75	$244,109.25	458,386
3/3/2025	Brian Gephart	CAO	Sell	6,250	$16.00	$100,000.00	132,909
2/19/2025	Sean Patrick Buckley	Insider	Sell	10,527	$19.13	$201,381.51	370,558
2/10/2025	Paul Caine	Director	Sell	5,000	$20.35	$101,750.00	182,837
2/7/2025	David Day	CFO	Sell	39,000	$20.00	$780,000.00	488,506
2/7/2025	James Rossman	Director	Sell	149,936	$19.46	$2,917,754.56	219,920
2/7/2025	Sean Patrick Buckley	Insider	Sell	18,693	$20.00	$373,860.00	408,529
1/3/2025	David Day	CFO	Sell	13,345	$17.00	$226,865.00	374,014
12/16/2024	David Day	CFO	Sell	11,644	$16.44	$191,427.36	400,859
12/13/2024	David Buonasera	CTO	Sell	1,969	$16.31	$32,114.39	223,795
12/4/2024	Michael G Barrett	CEO	Sell	147,996	$17.52	$2,592,889.92	634,914
11/27/2024	David Buonasera	CTO	Sell	431	$16.78	$7,232.18	225,764
11/25/2024	Aaron Saltz	Insider	Sell	6,110	$17.50	$106,925.00	297,482
11/25/2024	Michael G Barrett	CEO	Sell	27,004	$17.63	$476,080.52	782,910
11/22/2024	Adam Lee Soroca	Insider	Sell	8,328	$17.00	$141,576.00	421,347
11/22/2024	David Buonasera	CTO	Sell	9,219	$17.00	$156,723.00	226,195
11/20/2024	Robert F Spillane	Director	Sell	12,500	$16.12	$201,500.00	70,651
11/18/2024	Adam Lee Soroca	Insider	Sell	7,849	$15.60	$122,444.40	421,347
11/18/2024	Brian Gephart	CAO	Sell	2,156	$15.60	$33,633.60	112,795
11/18/2024	David Buonasera	CTO	Sell	277	$15.77	$4,368.29	235,414
11/18/2024	Sean Patrick Buckley	CRO	Sell	10,001	$15.60	$156,015.60	303,743
11/15/2024	Michael G Barrett	CEO	Sell	100,000	$16.14	$1,614,000.00	809,914
11/11/2024	Brian Gephart	CAO	Sell	2,156	$15.00	$32,340.00	116,982
11/7/2024	Aaron Saltz	Insider	Sell	5,112	$13.50	$69,012.00	307,745
8/19/2024	Adam Lee Soroca	Insider	Sell	7,910	$12.59	$99,586.90	436,001
8/19/2024	Sean Patrick Buckley	CRO	Sell	2,623	$12.53	$32,866.19	331,742
8/15/2024	David Buonasera	CTO	Sell	10,000	$12.65	$126,500.00	258,102
8/15/2024	Michael G Barrett	CEO	Sell	75,000	$12.63	$947,250.00	944,552
7/15/2024	Brian Gephart	CAO	Sell	16,166	$15.00	$242,490.00	121,169
7/15/2024	David Day	CFO	Sell	19,077	$15.00	$286,155.00	430,755
7/15/2024	Michael G Barrett	CEO	Sell	100,000	$15.00	$1,500,000.00	1,052,493
7/15/2024	Sean Patrick Buckley	CRO	Sell	19,607	$14.50	$284,301.50	363,615
6/14/2024	Aaron Saltz	Insider	Sell	4,778	$13.65	$65,219.70	317,010
6/13/2024	Katie Seitz Evans	COO	Sell	14,541	$13.77	$200,229.57	408,960
6/12/2024	David Day	CFO	Sell	21,299	$14.01	$298,398.99	449,832
6/11/2024	Robert F Spillane	Director	Sell	25,000	$13.04	$326,000.00	69,090
6/3/2024	David Day	CFO	Sell	20,732	$13.00	$269,516.00	471,131
5/24/2024	Sean Patrick Buckley	CRO	Sell	2,682	$12.50	$33,525.00	404,875
5/17/2024	Adam Lee Soroca	Insider	Sell	10,597	$12.30	$130,343.10	450,655
3/15/2024	Michael G Barrett	CEO	Sell	75,000	$11.21	$840,750.00	1,234,662

SEC Filings (Institutional Ownership Changes) for Magnite (NASDAQ:MGNI)

73.40% of Magnite stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

Magnite Institutional Trading History

Reporting Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
9/9/2026	Tidal Investments LLC	165,838	$3.15M	0.0%	+24.0%	0.116%
9/9/2026	WINTON GROUP Ltd	121,900	$2.31M	0.1%	N/A	0.085%
9/9/2026	Pinnacle Wealth Management Advisory Group LLC	14,863	$0.28M	0.0%	-34.2%	0.010%
9/9/2026	Nine Ten Capital Management LLC	3,261,283	$61.90M	19.3%	-6.3%	2.274%
9/8/2026	Allworth Financial LP	1,567	$30K	0.0%	+63.7%	0.001%
9/8/2026	Nykredit A S	1,306	$25K	0.0%	N/A	0.001%
8/27/2026	Corient Private Wealth LP	25,326	$0.48M	0.0%	N/A	0.018%
8/26/2026	Amundi	21,157	$0.40M	0.0%	-7.3%	0.015%
8/22/2026	Maestria Partners LLC	1,158,430	$21.99M	7.6%	-15.0%	0.808%
8/21/2026	Nykredit A S	1,306	$25K	0.0%	N/A	0.001%
8/20/2026	Two Sigma Securities LLC	21,097	$0.40M	0.0%	+75.4%	0.015%
8/20/2026	Alyeska Investment Group L.P.	326,839	$6.20M	0.0%	N/A	0.228%
8/20/2026	Northwestern Mutual Wealth Management Co.	15,245	$0.29M	0.0%	+408.2%	0.011%
8/20/2026	Greenwood Capital Associates LLC	34,891	$0.66M	0.1%	-5.2%	0.024%
8/19/2026	UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	364,638	$6.92M	0.0%	+12.9%	0.254%
8/19/2026	Wellington Management Group LLP	6,044,492	$114.72M	0.0%	-34.2%	4.215%
8/17/2026	Corient Private Wealth LP	17,309	$0.33M	0.0%	N/A	0.012%
8/17/2026	Parallax Volatility Advisers L.P.	16,743	$0.32M	0.0%	N/A	0.012%
8/17/2026	Pillsbury Lake Capital LLC	217,753	$4.13M	0.0%	N/A	0.152%
8/17/2026	Bank of America Corp DE	1,181,832	$22.43M	0.0%	N/A	0.824%
8/15/2026	Man Group plc	53,054	$1.01M	0.0%	N/A	0.037%
8/15/2026	Jupiter Topco LLC	58,423	$1.11M	0.0%	N/A	0.041%
8/15/2026	Meros Investment Management LP	991,335	$18.82M	0.0%	N/A	0.691%
8/14/2026	EFG International AG	1,500	$28K	0.0%	N/A	0.001%
8/14/2026	Canada Pension Plan Investment Board	2,995,093	$56.85M	0.0%	N/A	2.088%
8/14/2026	Manatuck Hill Partners LLC	450,000	$8.54M	2.8%	N/A	0.314%
8/14/2026	Legal & General Group Plc	117,006	$2.22M	0.0%	N/A	0.082%
8/14/2026	The Manufacturers Life Insurance Company	71,015	$1.35M	0.0%	N/A	0.050%
8/14/2026	S Squared Technology LLC	567,862	$10.78M	0.0%	N/A	0.396%
8/14/2026	Cetera Trust Company N.A	4,270	$81K	0.0%	N/A	0.003%
8/14/2026	Algert Global LLC	137,505	$2.61M	0.0%	-48.9%	0.096%
8/12/2026	Elevation Point Wealth Partners LLC	24,149	$0.46M	0.0%	N/A	0.017%
8/12/2026	Northwestern Mutual Wealth Management Co.	15,245	$0.29M	0.0%	N/A	0.011%
8/12/2026	Norwood Investment Partners LP	235,000	$4.46M	0.0%	N/A	0.164%
8/11/2026	Allworth Financial LP	1,567	$30K	0.0%	N/A	0.001%
8/11/2026	Lisanti Capital Growth LLC	289,030	$5.49M	1.2%	N/A	0.202%
8/10/2026	Great Lakes Advisors LLC	176,615	$3.35M	0.0%	N/A	0.123%
8/7/2026	Citizens Financial Group Inc. RI	82,383	$1.56M	0.0%	N/A	0.058%
8/7/2026	Buckland Partners Management Co LLC	31,446	$0.60M	0.3%	N/A	0.022%
8/7/2026	BlackRock Inc.	12,713,156	$241.30M	0.0%	N/A	8.877%
8/7/2026	Deutsche Bank AG	165,040	$3.13M	0.0%	N/A	0.115%
8/7/2026	Rice Hall James & Associates LLC	283,919	$5.39M	0.3%	N/A	0.198%
8/7/2026	Persistent Asset Partners Ltd	5,815	$0.11M	0.0%	N/A	0.004%
8/6/2026	Bank of New York Mellon Corp	1,162,198	$22.06M	0.0%	N/A	0.812%
8/6/2026	State of Wyoming	22,273	$0.42M	0.0%	N/A	0.016%
7/10/2026	Handelsbanken Fonder AB	47,300	$0.90M	0.0%	+37.9%	0.033%
7/10/2026	Fulton Bank N.A.	33,041	$0.63M	0.0%	+7.5%	0.023%
7/7/2026	Harbor Investment Advisory LLC	3,265	$62K	0.0%	N/A	0.002%
7/7/2026	Central Pacific Bank Trust Division	5,000	$95K	0.0%	+100.0%	0.003%
7/7/2026	Moody National Bank Trust Division	97,202	$1.85M	0.2%	+82.3%	0.068%
7/7/2026	Kopion Asset Management LLC	674,451	$12.80M	8.1%	-21.2%	0.471%
7/2/2026	Versant Capital Management Inc	4,715	$89K	0.0%	-14.7%	0.003%
6/18/2026	Pacer Advisors Inc.	501,578	$5.96M	0.0%	N/A	0.350%
6/2/2026	Optiver Holding B.V.	5,579	$66K	0.0%	+2,746.4%	0.004%
5/19/2026	Bank of America Corp DE	1,125,196	$13.37M	0.0%	+72.6%	0.786%
5/18/2026	Amundi	22,817	$0.27M	0.0%	+74.8%	0.016%
5/18/2026	California State Teachers Retirement System	176,528	$2.10M	0.0%	+29.3%	0.123%
5/18/2026	Royal Bank of Canada	52,917	$0.63M	0.0%	-15.1%	0.037%
5/16/2026	The Manufacturers Life Insurance Company	64,558	$0.77M	0.0%	-1.6%	0.045%
5/16/2026	Quantinno Capital Management LP	128,133	$1.52M	0.0%	+144.3%	0.089%
5/15/2026	Rice Hall James & Associates LLC	192,808	$2.29M	0.1%	-3.0%	0.135%
5/15/2026	Granahan Investment Management LLC	2,553,413	$30.34M	1.5%	-18.1%	1.783%
5/15/2026	Entropy Technologies LP	24,761	$0.29M	0.0%	N/A	0.017%
5/14/2026	Gabelli Funds LLC	45,820	$0.54M	0.0%	+48.7%	0.032%
5/14/2026	Gamco Investors INC. ET AL	60,653	$0.72M	0.0%	+36.4%	0.042%
5/14/2026	Sei Investments Co.	350,862	$4.17M	0.0%	+65.9%	0.245%
5/13/2026	Cetera Investment Advisers	13,157	$0.16M	0.0%	-61.6%	0.009%
5/8/2026	PNC Financial Services Group Inc.	3,783	$45K	0.0%	+106.3%	0.003%
5/7/2026	Dimensional Fund Advisors LP	3,983,674	$47.32M	0.0%	+10.2%	2.782%
5/7/2026	Swiss National Bank	284,300	$3.38M	0.0%	+1.3%	0.199%
5/6/2026	Jennison Associates LLC	57,849	$0.69M	0.0%	N/A	0.040%
5/6/2026	Allspring Global Investments Holdings LLC	41,766	$0.49M	0.0%	+11.5%	0.029%
5/5/2026	Bank of New York Mellon Corp	1,138,217	$13.52M	0.0%	-3.8%	0.795%
5/4/2026	Principal Financial Group Inc.	445,950	$5.30M	0.0%	+88.0%	0.311%
5/1/2026	Fifth Third Bancorp	58,823	$0.70M	0.0%	N/A	0.041%
4/30/2026	Money Concepts Capital Corp	11,659	$0.14M	0.0%	N/A	0.008%
4/30/2026	Greenwood Capital Associates LLC	36,804	$0.44M	0.0%	-4.7%	0.026%
4/28/2026	Stephens Inc. AR	85,537	$1.02M	0.0%	-2.1%	0.060%
4/27/2026	Elevation Point Wealth Partners LLC	23,648	$0.28M	0.0%	N/A	0.017%
4/25/2026	Strs Ohio	18,500	$0.22M	0.0%	-47.4%	0.013%
4/24/2026	Perkins Capital Management Inc.	119,275	$1.42M	1.3%	-2.1%	0.083%
4/22/2026	1492 Capital Management LLC	340,542	$4.05M	1.5%	-0.3%	0.236%
4/22/2026	Pictet Asset Management Holding SA	25,755	$0.31M	0.0%	+13.8%	0.018%
4/21/2026	Pinnacle Wealth Management Advisory Group LLC	22,577	$0.27M	0.0%	-7.6%	0.016%
4/21/2026	Penbrook Management LLC	112,190	$1.33M	1.0%	+260.6%	0.078%
4/20/2026	Cardinal Point Capital Management ULC	94,950	$1.13M	0.1%	+38.6%	0.066%
4/20/2026	Ritholtz Wealth Management	10,334	$0.12M	0.0%	N/A	0.007%
4/20/2026	Blue Trust Inc.	29,073	$0.35M	0.0%	+5.8%	0.020%
4/20/2026	OP Asset Management Ltd	12,621	$0.15M	0.0%	N/A	0.009%
4/16/2026	SG Americas Securities LLC	57,237	$0.68M	0.0%	-3.4%	0.040%
3/17/2026	Rockefeller Capital Management L.P.	8,402	$0.14M	0.0%	+563.7%	0.006%
2/19/2026	Invesco Ltd.	243,565	$3.95M	0.0%	-5.9%	0.170%
2/18/2026	Pillsbury Lake Capital LLC	583,644	$9.47M	3.3%	N/A	0.406%
2/18/2026	XTX Topco Ltd	46,663	$0.76M	0.0%	-42.7%	0.032%
2/18/2026	Wellington Management Group LLP	8,629,238	$140.05M	0.1%	+67.7%	6.007%
2/18/2026	Ophir Asset Management Pty Ltd	2,384,187	$38.70M	4.3%	N/A	1.660%
2/18/2026	Man Group plc	311,536	$5.06M	0.0%	N/A	0.217%
2/18/2026	Engineers Gate Manager LP	41,137	$0.67M	0.0%	N/A	0.029%
2/18/2026	Balyasny Asset Management L.P.	873,208	$14.17M	0.0%	+6,775.7%	0.608%
2/18/2026	Boothbay Fund Management LLC	117,842	$1.91M	0.0%	+100.1%	0.082%

Data available starting January 2016

Magnite, Inc., together with its subsidiaries, operates an independent omni-channel sell-side advertising platform in the United States and internationally. The company's platform offers applications and services for sellers of digital advertising inventory or publishers that own and operate CTV channels, applications, websites, and other digital media properties to manage and monetize their inventory; and applications and services for buyers, including advertisers, agencies, agency trading desks, and demand side platforms to buy digital advertising inventory, as well as an independent marketplace that connects buyers and sellers. It markets its solutions through sales teams that operate from various locations. The company was formerly known as The Rubicon Project, Inc. and changed name to Magnite, Inc. in July 2020. Magnite, Inc. was incorporated in 2007 and is headquartered in New York, New York.

Today's Range

Now: $25.15

$25.02

$26.35

50 Day Range

MA: $22.41

$17.92

$25.63

52 Week Range

Now: $25.15

$10.82

$26.84

Volume

3,586,392 shs

Average Volume

2,092,915 shs

Market Capitalization

$3.61 billion

P/E Ratio

23.07

Dividend Yield

N/A

Beta

2.3

Who are the company insiders with the largest holdings of Magnite?: Magnite's top insider shareholders include:
Michael G Barrett (CEO)
Thomas Kershaw (CTO)
Katie Seitz Evans (Insider)
Katie Seitz Evans (COO)
David Day (CFO)
Adam Lee Soroca (Insider)
Joseph R Prusz (CRO)
Sean Patrick Buckley (Insider)
Sean Patrick Buckley (CRO)
Aaron Saltz (General Counsel)
Learn More about top insider investors at Magnite.
Who are the major institutional investors of Magnite?: Magnite's top institutional investors include:
BlackRock Inc. — 8.88%
Wellington Management Group LLP — 4.21%
Nine Ten Capital Management LLC — 2.27%
Canada Pension Plan Investment Board — 2.09%
Bank of America Corp DE — 0.82%
Bank of New York Mellon Corp — 0.81%
Learn More about top institutional investors of Magnite stock.
Which institutional investors are selling Magnite stock?: In the previous quarter, MGNI stock was sold by these institutional investors:
Wellington Management Group LLP
Nine Ten Capital Management LLC
Maestria Partners LLC
Kopion Asset Management LLC
Algert Global LLC
Pinnacle Wealth Management Advisory Group LLC
California State Teachers Retirement System
Greenwood Capital Associates LLC
In the last year, company insiders that have sold Magnite company stock include:
Katie Seitz Evans (Insider)
Michael G Barrett (CEO)
Adam Lee Soroca (Insider)
Sean Patrick Buckley (Insider)
David Buonasera (CTO)
Rachel Lam (Director)
Aaron Saltz (Insider)
Douglas S Knopper (Director)
Paul Caine (Director)
Sarah Patricia Harden (Director)
Brian Gephart (CAO)
David T Pearson (Director)
Robert F Spillane (Director)
Learn More investors selling Magnite stock.
Which institutional investors are buying Magnite stock?: During the last quarter, MGNI stock was bought by institutional investors including:
BlackRock Inc.
Canada Pension Plan Investment Board
Bank of America Corp DE
Bank of New York Mellon Corp
Meros Investment Management LP
S Squared Technology LLC
Manatuck Hill Partners LLC
Alyeska Investment Group L.P.