MAGNITE INC. (MGNI) - Insider Holders & Insider Ownership

List of insiders holdings for MAGNITE INC.:
  1. Shares directly owned by the insider.
  2. Shares indirectly owned by the insider.
  3. Total shares owned by the insider (sum of shares directly and indirectly owned).
  4. Total market value if available.
  5. Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
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#Insider Holder NameReport
Date Time
Shares Owned
Directly
Indirectly
Total
Shares Owned
Filing
1Clearstone Venture Management III L.L.C.
CLEARSTONE VENTURE PARTNERS III-A LP
Clearstone Venture Partners III-B a Delaware Multiple Series LLC
10% Owner
2019-02-05 17:02:142,567,227
0
2,567,227Form 13G
2Mandal Sumant
Director
2019-02-26 17:22:5146,734
2,057,918
2,104,652Form 4
3Zagorski Mark
President & COO
2020-04-03 17:12:281,652,321
0
1,652,321Form 4
4MOHN JARL
Director
2014-04-11 21:45:13148,633
1,167,550
1,316,183Form 4
5TAPPIN TODD L
CFO & COO
2016-05-26 19:35:27668,779
0
668,779Form 4
6Kershaw Thomas
Chief Technology Officer
2021-05-19 19:15:05473,763
0
473,763Form 4
7Soroca Adam Lee
CHIEF PRODUCT OFFICER
2025-09-04 17:00:27443,050
0
443,050Form 4
8RAIFMAN GREGORY R
Director
2017-05-17 20:37:120
420,459
420,459Form 4
9Evans Katie Seitz
President, Operations
2025-08-29 16:30:08394,089
0
394,089Form 4
10Day David
CHIEF FINANCIAL OFFICER
2025-08-20 16:30:26382,106
0
382,106Form 4
11Prusz Joseph R
Chief Revenue Officer, DV+
2022-02-16 18:22:12311,083
0
311,083Form 4
12Buckley Sean Patrick
President, Revenue
2025-09-10 17:00:08287,193
0
287,193Form 4
13COPPLE BRIAN W
General Counsel and Secretary
2018-05-17 20:42:410
277,524
277,524Form 4
14BARRETT MICHAEL G.
CEO
2025-08-20 16:30:23249,857
0
249,857Form 4
15Buonasera David
CHIEF TECHNOLOGY OFFICER
2025-09-04 17:00:28238,629
0
238,629Form 4
16Lam Rachel
Director
2025-08-14 16:26:10226,822
0
226,822Form 4
17Saltz Aaron
CHIEF LEGAL OFFICER
2025-09-19 16:15:08215,079
0
215,079Form 4
18Filip Eve
See remarks
2020-07-31 18:33:26213,207
0
213,207Form 4
19Dove James Allen
Chief Technology Officer
2022-08-17 16:21:33191,071
0
191,071Form 4
20Richter James Neal
Chief Technology Officer
2016-11-03 17:45:52183,115
0
183,115Form 4
21Hughes Shawna
Chief Accounting Officer
2021-05-19 19:51:48178,129
0
178,129Form 4
22Knopper Douglas S
Director
2025-06-06 17:50:25160,115
0
160,115Form 4
23Caine Paul
Director
2025-09-19 18:13:41158,603
0
158,603Form 4
24Tuller Blima
Chief Accounting Officer
2020-06-05 16:53:18155,402
0
155,402Form 4/A
25Harden Sarah Patricia
Director
2025-06-06 17:49:23149,939
0
149,939Form 4
26FRANKENBERG ROBERT J
Director
2023-06-16 16:27:47119,090
0
119,090Form 4
27TROE LISA L
Director
2023-06-12 16:28:46114,218
0
114,218Form 4
28Patz Harry Jr
Chief Revenue Officer
2017-01-05 17:39:20100,000
0
100,000Form 4
29Rossman James
Director
2025-06-20 16:27:2693,679
0
93,679Form 4
30Gephart Brian
CHIEF ACCOUNTING OFFICER
2025-09-05 17:00:0592,898
0
92,898Form 4
31PEARSON DAVID T.
Director
2025-06-06 17:55:0875,969
0
75,969Form 4
32Yu Diane
Director
2025-08-27 16:30:0667,481
0
67,481Form 4
33Spillane Robert F
Director
2025-06-12 17:56:0866,417
0
66,417Form 4
34NEWS CORP
10% Owner
2017-02-10 16:18:270
0
0Form 13G
35COLEMAN LEWIS W
Director
2020-04-03 17:00:020
0
0Form 4
36Feldman Jonathan
Co-General Counsel & Secretary
2020-04-03 16:59:390
0
0Form 4
37ADDANTE FRANK
Director
2020-04-03 16:59:170
0
0Form 4
38MAYFIELD XII A DELAWARE L P
Mayfield XII Management L.L.C.
MAYFIELD ASSOCIATES FUND XII
Mayfield Principals Fund XII
Beck James T
Chaddha Navin
VASAN ROBERT T
10% Owner
2016-01-22 16:17:060
0
0Form 13G