MAGNITE INC (MGNI): Institutional Ownership
Hedge funds and institutional managers reporting a position in MGNI · Communication Services. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
19
13F filers
Aggregate Value
$75.0M
Across holders
Last Price
$18.73
2026-06-26
Sector
Communication Services
GICS
Holder activity4 new9 added5 reduced
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| Schonfeld Strategic Advisors LLC CIK 0001665241 | Hedge Fund | 1.61M | $19.1M | 25.4% | 0.1% | Added | +$9.8M | Q1 2026 |
| BALYASNY ASSET MANAGEMENT LLC CIK 0001218710 | Hedge Fund | 1.50M | $17.8M | 23.8% | 0.0% | Added | +$7.5M | Q1 2026 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 661K | $7.9M | 10.5% | 0.0% | Added | +$5.4M | Q1 2026 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 555K | $6.6M | 8.8% | 0.0% | Reduced | $-2.4M | Q1 2026 |
| First Eagle Investment Management, LLC CIK 0001325447 | Institutional Manager | 450K | $5.3M | 7.1% | 0.0% | Added | +$1.8M | Q1 2026 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 395K | $4.7M | 6.3% | 0.0% | Added | +$374K | Q1 2026 |
| Senvest Management, LLC CIK 0001328785 | Hedge Fund | 224K | $2.7M | 3.5% | 0.1% | Unchanged | +$0 | Q1 2026 |
| Bridgewater Associates, LP CIK 0001350694 | Hedge Fund | 145K | $2.4M | 3.1% | 0.0% | Reduced | $-8K | Q4 2025 |
| ExodusPoint Capital Management, LP CIK 0001736225 | Hedge Fund | 149K | $1.8M | 2.4% | 0.0% | New | — | Q1 2026 |
| Brevan Howard Capital Management LP CIK 0001512857 | Hedge Fund | 133K | $1.6M | 2.1% | 0.0% | New | — | Q1 2026 |
| Holocene Advisors, LP CIK 0001700574 | Hedge Fund | 102K | $1.2M | 1.6% | 0.0% | Added | +$1.0M | Q1 2026 |
| Verition Fund Management LLC CIK 0001454027 | Hedge Fund | 62K | $1.0M | 1.3% | 0.0% | New | — | Q4 2025 |
| TUDOR INVESTMENT CORP ET AL CIK 0000923093 | Hedge Fund | 74K | $875K | 1.2% | 0.0% | Reduced | $-187K | Q1 2026 |
| GAMCO INVESTORS, INC. ET AL CIK 0000807249 | Institutional Manager | 61K | $721K | 1.0% | 0.0% | Added | +$192K | Q1 2026 |
| Walleye Capital LLC CIK 0001758720 | Hedge Fund | 39K | $463K | 0.6% | 0.0% | Reduced | $-277K | Q1 2026 |
| Man Group plc CIK 0001637460 | Hedge Fund | 37K | $440K | 0.6% | 0.0% | Added | +$436K | Q1 2026 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 31K | $364K | 0.5% | 0.0% | Added | +$23K | Q1 2026 |
| Gotham Asset Management, LLC CIK 0001510387 | Hedge Fund | 13K | $153K | 0.2% | 0.0% | New | — | Q1 2026 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 965 | $11K | 0.0% | 0.0% | Reduced | $-1.1M | Q1 2026 |
Added
Hedge Fund
$19.1M· 25.4% of total· 0.1% port· 1.61M sh· +$9.8M QoQ· Q1 2026
Added
Hedge Fund
$17.8M· 23.8% of total· 0.0% port· 1.50M sh· +$7.5M QoQ· Q1 2026
Added
Hedge Fund
$7.9M· 10.5% of total· 0.0% port· 661K sh· +$5.4M QoQ· Q1 2026
Reduced
Hedge Fund
$6.6M· 8.8% of total· 0.0% port· 555K sh· $-2.4M QoQ· Q1 2026
Added
Institutional Manager
$5.3M· 7.1% of total· 0.0% port· 450K sh· +$1.8M QoQ· Q1 2026
Added
Hedge Fund
$4.7M· 6.3% of total· 0.0% port· 395K sh· +$374K QoQ· Q1 2026
Unchanged
Hedge Fund
$2.7M· 3.5% of total· 0.1% port· 224K sh· +$0 QoQ· Q1 2026
Reduced
Hedge Fund
$2.4M· 3.1% of total· 0.0% port· 145K sh· $-8K QoQ· Q4 2025
New
Hedge Fund
$1.8M· 2.4% of total· 0.0% port· 149K sh· — QoQ· Q1 2026
New
Hedge Fund
$1.6M· 2.1% of total· 0.0% port· 133K sh· — QoQ· Q1 2026
Added
Hedge Fund
$1.2M· 1.6% of total· 0.0% port· 102K sh· +$1.0M QoQ· Q1 2026
New
Hedge Fund
$1.0M· 1.3% of total· 0.0% port· 62K sh· — QoQ· Q4 2025
Reduced
Hedge Fund
$875K· 1.2% of total· 0.0% port· 74K sh· $-187K QoQ· Q1 2026
Added
Institutional Manager
$721K· 1.0% of total· 0.0% port· 61K sh· +$192K QoQ· Q1 2026
Reduced
Hedge Fund
$463K· 0.6% of total· 0.0% port· 39K sh· $-277K QoQ· Q1 2026
Added
Hedge Fund
$440K· 0.6% of total· 0.0% port· 37K sh· +$436K QoQ· Q1 2026
Added
Hedge Fund
$364K· 0.5% of total· 0.0% port· 31K sh· +$23K QoQ· Q1 2026
New
Hedge Fund
$153K· 0.2% of total· 0.0% port· 13K sh· — QoQ· Q1 2026
Reduced
Hedge Fund
$11K· 0.0% of total· 0.0% port· 965 sh· $-1.1M QoQ· Q1 2026