Penbrook Management LLC
- SEC CIK
- 0001381055
- Latest filing
- Jul 23, 2026
MGNI holding history
Magnite, Inc. in every 13F filed by Penbrook Management LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
MGNI overviewAll 13F holders of MGNIFull Q2 2026 holdings
- Shares (Q2 2026)
- 112,040
- Value
- $2.13M
- % of portfolio
- 1.4%
- Quarters held
- 8
- Since Q3 2024
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 112,040 | $2.13M | 1.4% | −150−0.1% | Reduced | Holders |
| Q1 2026 | 112,190 | $1.33M | 1.0% | +81,075+260.6% | Added | Holders |
| Q4 2025 | 31,115 | $505.0K | 0.3% | +2,695+9.5% | Added | Holders |
| Q3 2025 | 28,420 | $619.0K | 0.4% | 00.0% | Unchanged | Holders |
| Q2 2025 | 28,420 | $685.5K | 0.5% | −9,750−25.5% | Reduced | Holders |
| Q1 2025 | 38,170 | $435.5K | 0.3% | −310−0.8% | Reduced | Holders |
| Q4 2024 | 38,480 | $612.6K | 0.4% | +15,050+64.2% | Added | Holders |
| Q3 2024 | 23,430 | $324.5K | 0.2% | +23,430 | New | Holders |