그레이트 주식회사
MX ˙ BMV ˙ US55955D1000
SecurityMX:MGNI / Magnite, Inc.
InstitutionStrs Ohio
Latest Disclosed Ownership18,500 shares
Latest Disclosed Value $ 219,780
Strs Ohio reports 47.44% decrease in ownership of MGNI / Magnite, Inc.

On April 24, 2026 - Strs Ohio filed a 13F-HR form disclosing ownership of 18,500 shares of Magnite, Inc. (MX:MGNI) valued at $219,780 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 35,200 shares of Magnite, Inc.. This represents a change in shares of -47.44% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-04-24 2026-03-31 13F MAGNITE COM_STK 55955D100 18,500 -16,700 -47.44 220 -61.65 0.0009
2026-02-02 2025-12-31 13F MAGNITE COM_STK 55955D100 35,200 -8,700 -19.82 571 -40.27 0.0021
2025-10-30 2025-09-30 13F MAGNITE COM_STK 55955D100 43,900 1,700 4.03 956 -6.00 0.0035
2025-08-04 2025-06-30 13F MAGNITE COM_STK 55955D100 42,200 -5,500 -11.53 1,018 86.95 0.0038
2025-05-28 2025-03-31 13F MAGNITE COM_STK 55955D100 47,700 16,100 50.95 544 8.15 0.0023
2025-05-28 2024-12-31 13F MAGNITE COM_STK 55955D100 31,600 8,400 36.21 503 56.70 0.0020
2024-11-01 2024-09-30 13F MAGNITE COM_STK 55955D100 23,200 11,200 93.33 321 101.89 0.0012
2024-08-05 2024-06-30 13F MAGNITE COM_STK 55955D100 12,000 1,900 18.81 159 0.0006
2024-05-13 2024-03-31 13F MAGNITE COM_STK 55955D100 10,100 -600 -5.61 0 0.0004
2024-01-30 2023-12-31 13F MAGNITE COM 55955D100 10,700 0 0.00 0 0.0004
2023-10-26 2023-09-30 13F/A-1 MAGNITE COM 55955D100 10,700 0 0.00 0 0.0004
2023-10-26 2023-09-30 13F MAGNITE COM 55955D100 10,700 0 0 0.0004
2023-07-31 2023-06-30 13F MAGNITE COM 55955D100 10,700 800 8.08 0 0.0006
2023-08-02 2023-03-31 13F/A-2 MAGNITE COM 55955D100 9,900 0 0.00 0 0.0004
2023-08-02 2023-03-31 13F/A-1 MAGNITE COM 55955D100 9,900 0
2023-04-27 2023-03-31 13F MAGNITE COM 55955D100 9,900 0 0 0.0005
2023-01-26 2022-12-31 13F MAGNITE COM 55955D100 9,900 5,200 110.64 0 -100.00 0.0005
2022-10-27 2022-09-30 13F MAGNITE COM 55955D100 4,700 0 0.00 30 -26.83 0.0001
2022-07-25 2022-06-30 13F MAGNITE COM 55955D100 4,700 1,500 46.88 41 -2.38 0.0002
2022-04-21 2022-03-31 13F MAGNITE COM 55955D100 3,200 0 0.00 42 -25.00 0.0002
2022-01-24 2021-12-31 13F MAGNITE COM 55955D100 3,200 -91,900 -96.64 56 -97.90 0.0002
2021-10-22 2021-09-30 13F MAGNITE COM 55955D100 95,100 10,900 12.95 2,662 -6.56 0.0100
2021-07-26 2021-06-30 13F MAGNITE COM 55955D100 84,200 29,300 53.37 2,849 24.74 0.0102
2021-04-23 2021-03-31 13F MAGNITE COM 55955D100 54,900 54,900 2,284 0.0086
2021-01-25 2020-12-31 13F MAGNITE COM 55955D100 0 0 0 0.0000
2020-12-14 2020-09-30 13F MAGNITE COM 55955D100 0 0 0 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.