Penbrook Management LLC
- SEC CIK
- 0001381055
- Latest filing
- Jul 23, 2026
IBM holding history
International Business Machines Corp 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.
IBM overviewAll 13F holders of IBMFull Q2 2026 holdings
- Shares (Q2 2026)
- 1,283
- Value
- $360.8K
- % of portfolio
- 0.2%
- Quarters held
- 18
- Since Q1 2022
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 1,283 | $360.8K | 0.2% | 00.0% | Unchanged | Holders |
| Q1 2026 | 1,283 | $311.0K | 0.2% | −344−21.1% | Reduced | Holders |
| Q4 2025 | 1,627 | $481.9K | 0.3% | −25−1.5% | Reduced | Holders |
| Q3 2025 | 1,652 | $466.1K | 0.3% | −10−0.6% | Reduced | Holders |
| Q2 2025 | 1,662 | $489.9K | 0.4% | −863−34.2% | Reduced | Holders |
| Q1 2025 | 2,525 | $627.9K | 0.5% | 00.0% | Unchanged | Holders |
| Q4 2024 | 2,525 | $555.1K | 0.4% | −100−3.8% | Reduced | Holders |
| Q3 2024 | 2,625 | $580.3K | 0.4% | −1,075−29.1% | Reduced | Holders |
| Q2 2024 | 3,700 | $639.9K | 0.4% | −595−13.9% | Reduced | Holders |
| Q1 2024 | 4,295 | $820.2K | 0.5% | −95−2.2% | Reduced | Holders |
| Q4 2023 | 4,390 | $718.0K | 0.5% | +140+3.3% | Added | Holders |
| Q3 2023 | 4,250 | $596.3K | 0.4% | +150+3.7% | Added | Holders |
| Q2 2023 | 4,100 | $548.6K | 0.4% | −100−2.4% | Reduced | Holders |
| Q1 2023 | 4,200 | $550.6K | 0.4% | 00.0% | Unchanged | Holders |
| Q4 2022 | 4,200 | $591.7K | 0.5% | 00.0% | Unchanged | Holders |
| Q3 2022 | 4,200 | $499.0K | 0.4% | −185−4.2% | Reduced | Holders |
| Q2 2022 | 4,385 | $619.0K | 0.5% | +2,675+156.4% | Added | Holders |
| Q1 2022 | 1,710 | $222.0K | 0.1% | +1,710 | New | Holders |