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

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 Name Report
Date Time		 Shares Owned
Directly
Indirectly		 Total
Shares Owned		 Filing
1 Clearstone 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 17:02:14 2,567,227
0		 2,567,227 Form 13G
2 Mandal Sumant
Director		 2019-02-26 17:22:51 46,734
2,057,918		 2,104,652 Form 4
3 Zagorski Mark
President & COO		 2020-04-03 17:12:28 1,652,321
0		 1,652,321 Form 4
4 MOHN JARL
Director		 2014-04-11 21:45:13 148,633
1,167,550		 1,316,183 Form 4
5 TAPPIN TODD L
CFO & COO		 2016-05-26 19:35:27 668,779
0		 668,779 Form 4
6 Soroca Adam Lee
CHIEF PRODUCT OFFICER		 2025-07-08 17:20:19 488,315
0		 488,315 Form 4
7 Kershaw Thomas
Chief Technology Officer		 2021-05-19 19:15:05 473,763
0		 473,763 Form 4
8 Evans Katie Seitz
President, Operations		 2025-07-02 16:15:43 434,430
0		 434,430 Form 4
9 Day David
CHIEF FINANCIAL OFFICER		 2025-07-02 16:15:36 421,846
0		 421,846 Form 4
10 RAIFMAN GREGORY R
Director		 2017-05-17 20:37:12 0
420,459		 420,459 Form 4
11 Buckley Sean Patrick
President, Revenue		 2025-05-16 17:40:09 347,394
0		 347,394 Form 4
12 Prusz Joseph R
Chief Revenue Officer, DV+		 2022-02-16 18:22:12 311,083
0		 311,083 Form 4
13 BARRETT MICHAEL G.
CEO		 2025-07-17 17:15:07 285,808
0		 285,808 Form 4
14 COPPLE BRIAN W
General Counsel and Secretary		 2018-05-17 20:42:41 0
277,524		 277,524 Form 4
15 Saltz Aaron
CHIEF LEGAL OFFICER		 2025-07-02 16:15:39 261,814
0		 261,814 Form 4
16 Buonasera David
CHIEF TECHNOLOGY OFFICER		 2025-07-02 16:15:33 249,413
0		 249,413 Form 4
17 Lam Rachel
Director		 2025-06-06 17:51:42 241,822
0		 241,822 Form 4
18 Filip Eve
See remarks		 2020-07-31 18:33:26 213,207
0		 213,207 Form 4
19 Dove James Allen
Chief Technology Officer		 2022-08-17 16:21:33 191,071
0		 191,071 Form 4
20 Caine Paul
Director		 2025-07-11 16:30:05 183,603
0		 183,603 Form 4
21 Richter James Neal
Chief Technology Officer		 2016-11-03 17:45:52 183,115
0		 183,115 Form 4
22 Hughes Shawna
Chief Accounting Officer		 2021-05-19 19:51:48 178,129
0		 178,129 Form 4
23 Knopper Douglas S
Director		 2025-06-06 17:50:25 160,115
0		 160,115 Form 4
24 Tuller Blima
Chief Accounting Officer		 2020-06-05 16:53:18 155,402
0		 155,402 Form 4/A
25 Harden Sarah Patricia
Director		 2025-06-06 17:49:23 149,939
0		 149,939 Form 4
26 Gephart Brian
CHIEF ACCOUNTING OFFICER		 2025-05-16 17:40:14 123,530
0		 123,530 Form 4
27 FRANKENBERG ROBERT J
Director		 2023-06-16 16:27:47 119,090
0		 119,090 Form 4
28 TROE LISA L
Director		 2023-06-12 16:28:46 114,218
0		 114,218 Form 4
29 Patz Harry Jr
Chief Revenue Officer		 2017-01-05 17:39:20 100,000
0		 100,000 Form 4
30 Rossman James
Director		 2025-06-20 16:27:26 93,679
0		 93,679 Form 4
31 Yu Diane
Director		 2025-06-06 17:56:13 87,481
0		 87,481 Form 4
32 PEARSON DAVID T.
Director		 2025-06-06 17:55:08 75,969
0		 75,969 Form 4
33 Spillane Robert F
Director		 2025-06-12 17:56:08 66,417
0		 66,417 Form 4
34 ADDANTE FRANK
Director		 2020-04-03 16:59:17 0
0		 0 Form 4
35 Feldman Jonathan
Co-General Counsel & Secretary		 2020-04-03 16:59:39 0
0		 0 Form 4
36 MAYFIELD 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 16:17:06 0
0		 0 Form 13G
37 COLEMAN LEWIS W
Director		 2020-04-03 17:00:02 0
0		 0 Form 4
38 NEWS CORP
10% Owner		 2017-02-10 16:18:27 0
0		 0 Form 13G