Filing Details

Accession Number:
0001415889-25-019025
Form Type:
4
Zero Holdings:
No
Publication Time:
2025-07-02 16:15:43
Reporting Period:
2025-06-30
Filing Date:
2025-07-02
Accepted Time:
2025-07-02 16:15:43
SEC Url:
Form 4 Filing
Issuer
Cik Name Symbol Sector (SIC) IRS No
1595974 Magnite Inc. MGNI Services-Computer Programming, Data Processing, Etc. (7370) 208881738
Insiders
Cik Name Reported Address Insider Title Director Officer Large Shareholder Other
1700262 Seitz Katie Evans C/O Magnite, Inc.
1250 Broadway, 15Th Floor
New York NY 10001
President, Operations No No No No
Transaction Summary
Sold: 24,495 shares Avg. Price: $23.32 Total Value: $571,164.00
Number of Shares After Transactions: 434,430 shares
Reported Non-Derivative Transactions
Sec. Name Acquisiton - Disposition Date Amount Price Remaning Holdings Equity Swap Involved Form Type Code Nature of Ownership Explanation
Common Stock Acquisiton 2025-06-30 16,137 $3.61 458,925 No 4 M Direct
Common Stock Disposition 2025-06-30 8,358 $22.00 450,567 No 4 S Direct
Common Stock Disposition 2025-06-30 16,137 $24.00 434,430 No 4 S Direct
Equity Swap Involved Form Type Code Nature of Ownership Explanation
No 4 M Direct
No 4 S Direct
No 4 S Direct
Reported Derivative Transactions
Sec. Name Sec. Type Acquisiton - Disposition Date Amount Price Amount - 2 Price - 2
Common Stock Stock Option (Right to Buy) Disposition 2025-06-30 16,137 $0.00 16,137 $3.61
Remaning Holdings Exercise Date Expiration Date Equity Swap Involved Transaction Form Type Transaction Code Nature of Ownership
0 2028-02-26 No 4 M Direct
Footnotes
  1. This exercise and subsequent sales were made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 6, 2025.
  2. 25% of the total number of shares underlying this option vested on February 14, 2019 and the remaining shares vested 1/36 per month over the next 36 months thereafter.
  3. Granted as compensation for services.