Security key
55955D100
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 96,353,092
- Total 13F value
- $892,115,344
- Share change
- +3,065,214
- Put/Call ratio
- 208%
- SEC-reported price per share
- $9.26
- Number of holders
- 217
- Value change
- +$22,211,875
- Number of buys
- 102
- Number of sells
- 108
- Shares outstanding
- 143,436,829
Holder snapshot
7 facts
Show 1 more fact
Security identity
1 fact
Report period
Q1 2023
Institutions
217
Top holders
10
MGNI full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2023
Previous quarter: Q4 2022
MAGNITE, INC. SEC filings
MAGNITE, INC. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 55955D100
Recent filing periods:
Ownership snapshot
Top reported holders of MGNI - MAGNITE, INC. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Largest current holder
VANGUARD GROUP INC
13D/G signal
—
Evidence rows
15
Latest as of
31 Dec 2022
13F
Lead comparable stake: 8.7%
Showing 1-6 of 15 holder rows.
Quick read
VANGUARD GROUP INC leads the comparable SEC ownership view at 8.7%.
Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Comparable ownership
Top 5
VANGUARD GROUP INC
8.7%
Granahan Investment Management, LLC
7.3%
BlackRock Finance, Inc.
6.2%
Edenbrook Capital, LLC
4.8%
FMR LLC
4.3%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| VANGUARD GROUP INC |
13F
Company
|
8.7%
|
$131,706,760
12,436,899 shares
|
— | 31 Dec 2022 |
| Granahan Investment Management, LLC |
13F
Company
|
7.3%
|
$110,707,330
10,453,950 shares
|
— | 31 Dec 2022 |
| BlackRock Finance, Inc. |
13F
Company
|
6.2%
|
$93,677,943
8,845,887 shares
|
— | 31 Dec 2022 |
| Edenbrook Capital, LLC |
13F
Company
|
4.8%
|
$72,997,706
6,893,079 shares
|
— | 31 Dec 2022 |
| FMR LLC |
13F
Company
|
4.3%
|
$64,911,733
6,129,531 shares
|
— | 31 Dec 2022 |
| Bank of New York Mellon Corp |
13F
Company
|
2.4%
|
$36,911,318
3,485,488 shares
|
— | 31 Dec 2022 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2023
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
217
Shares
96,353,092
Rows available
217
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that failed the local validity check.
Compare Q1 2023 vs Q4 2022 Across Filers
Q4 2022 holders
228
Q1 2023 holders
217
Holder diff
-11
| Investor | Q4 2022 Shares | Q1 2023 Shares | Share Diff | Share Chg % | Q4 2022 value | Q1 2023 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend