Penbrook Management’s iShares Biotechnology ETF IBB Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2025
Q3 | – | Sell |
-3,240
| Closed | -$414K | – | 111 |
|
|
2025
Q2 | $414K | Hold |
3,240
| – | – | 0.16% | 89 |
|
|
2025
Q1 | $414K | Sell |
3,240
-120
| -4% | -$16.3K | 0.31% | 69 |
|
|
2024
Q4 | $444K | Hold |
3,360
| – | – | 0.3% | 67 |
|
|
2024
Q3 | $489K | Sell |
3,360
-690
| -17% | -$99.8K | 0.32% | 61 |
|
|
2024
Q2 | $556K | Hold |
4,050
| – | – | 0.34% | 60 |
|
|
2024
Q1 | $556K | Buy |
4,050
+90
| +2% | +$12.3K | 0.34% | 65 |
|
|
2023
Q4 | $538K | Hold |
3,960
| – | – | 0.36% | 64 |
|
|
2023
Q3 | $484K | Sell |
3,960
-30
| -0.8% | -$3.81K | 0.35% | 61 |
|
|
2023
Q2 | $507K | Hold |
3,990
| – | – | 0.37% | 63 |
|
|
2023
Q1 | $515K | Hold |
3,990
| – | – | 0.39% | 58 |
|
|
2022
Q4 | $524K | Sell |
3,990
-30
| -0.7% | -$3.88K | 0.45% | 61 |
|
|
2022
Q3 | $470K | Sell |
4,020
-90
| -2% | -$11.2K | 0.4% | 63 |
|
|
2022
Q2 | $483K | Sell |
4,110
-60
| -1% | -$7.12K | 0.38% | 67 |
|
|
2022
Q1 | $543K | Sell |
4,170
-390
| -9% | -$50.8K | 0.35% | 70 |
|
|
2021
Q4 | $696K | Hold |
4,560
| – | – | 0.42% | 68 |
|
|
2021
Q3 | $737K | Sell |
4,560
-30
| -0.7% | -$5.05K | 0.46% | 66 |
|
|
2021
Q2 | $751K | Buy |
4,590
+660
| +17% | +$102K | 0.45% | 64 |
|
|
2021
Q1 | $592K | Hold |
3,930
| – | – | 0.43% | 65 |
|
|
2020
Q4 | $595K | Hold |
3,930
| – | – | 0.46% | 62 |
|
|
2020
Q3 | $532K | Buy |
3,930
+30
| +0.8% | +$4.07K | 0.46% | 63 |
|
|
2020
Q2 | $533K | Hold |
3,900
| – | – | 0.52% | 58 |
|
|
2020
Q1 | $420K | Hold |
3,900
| – | – | 0.54% | 57 |
|
|
2019
Q4 | $470K | Hold |
3,900
| – | – | 0.46% | 67 |
|
|
2019
Q3 | $388K | Sell |
3,900
-30
| -0.8% | -$3.14K | 0.42% | 74 |
|
|
2019
Q2 | $429K | Hold |
3,930
| – | – | 0.46% | 69 |
|
|
2019
Q1 | $439K | Sell |
3,930
-630
| -14% | -$69.1K | 0.46% | 71 |
|
|
2018
Q4 | $440K | Hold |
4,560
| – | – | 0.5% | 63 |
|
|
2018
Q3 | $556K | Sell |
4,560
-330
| -7% | -$38.9K | 0.53% | 65 |
|
|
2018
Q2 | $537K | Hold |
4,890
| – | – | 0.52% | 68 |
|
|
2018
Q1 | $522K | Sell |
4,890
-900
| -16% | -$99.8K | 0.52% | 68 |
|
|
2017
Q4 | $618K | Buy |
+5,790
| New | +$619K | 0.56% | 62 |
|
|
2016
Q3 | $408K | Hold |
4,230
| – | – | 0.44% | 72 |
|
|
2016
Q2 | $363K | Buy |
+4,230
| New | +$380K | 0.4% | 76 |
|
Other funds holding IBB
CB
Penbrook Management's IBB Position: Q3 2025 in Review
Penbrook Management sold out of iShares Biotechnology ETF (IBB) in Q3 2025, closing a stake of 3,240 shares — an estimated $414K sold.
Penbrook Management first reported a position in IBB in Q2 2016 and held it in 33 quarters. The position peaked at $751K in Q2 2021. 803 funds tracked by Wall St. Rank hold IBB as of Q3 2025.
- Penbrook Management reported no remaining iShares Biotechnology ETF position as of Q3 2025 after selling out during the quarter.
- Penbrook Management sold 3,240 iShares Biotechnology ETF shares in Q3 2025, an estimated $414K.
- Penbrook Management first reported a position in iShares Biotechnology ETF in Q2 2016 and held it in 33 quarters.
- Penbrook Management's iShares Biotechnology ETF position peaked at $751K in Q2 2021.
- 803 funds tracked by Wall St. Rank held iShares Biotechnology ETF as of Q3 2025.
Based on Penbrook Management's 13F filing for Q3 2025, filed 22 Oct 2025.