OAKTOP CAPITAL MANAGEMENT II, L.P.
CIK
1550660
Location
Chatham, NJ
Portfolio Value
Mid
$2,350,079,920
Diversification
Highly concentrated
Filing Date
Global Rank
#1,221
/ 8,694
▲ 674
Top Industry
Semiconductor Equipment & Materials
77.2%
Period ended 2 months ago
Filed Aug 7, 2026 · 35d
26 quarters · since Mar 2020
Portfolio Concentration
14 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026Top Position
39.2%
+3.3 pts
Top 5
93.3%
+1.7 pts
Top 10
98.4%
+0.1 pts
HHI
3,089
Highly concentrated+430
Portfolio Trend
26 quarters · across all stocks
Sector Breakdown
As of Jun 30, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Technology | 96.6% | $2,269,674,946 |
| Basic Materials | 1.4% | $32,769,393 |
| Healthcare | 1.2% | $27,657,081 |
| Communication Services | 0.9% | $19,978,500 |
Last Quarter's Activity
Export CSVTrimmed
Positions the filer reduced
1 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| LRCX | Lam Research Corp | −188,340 | 2,061,054 | $893,116,529 | |
| No positions match the current search. | |||||
New Positions
Positions the filer opened this quarterNo qualifying positions this quarter.
Sold Out
Positions the filer fully exitedNo qualifying positions this quarter.
14 tracked positions ·
$2,350,079,920 total
· filing declares
14 positions · $2,350,079,924
· as of Jun 30, 2026
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| KLAC |
Kla Corp
Technology
|
Added | 3,053,730 | $921,340,878 | 39.20% | |
| LRCX |
Lam Research Corp
Technology
|
Reduced | 2,061,054 | $893,116,529 | 38.00% | |
| ADI |
Analog Devices Inc
Technology
|
Held | 466,196 | $185,159,065 | 7.88% | |
| AVGO |
Broadcom Inc.
Technology
|
Held | 362,760 | $137,032,590 | 5.83% | |
| DELL |
Dell Technologies Inc.
Technology
|
Held | 130,619 | $56,356,873 | 2.40% | |
| ASPN |
Aspen Aerogels Inc
Basic Materials
|
Held | 5,168,674 | $32,769,393 | 1.39% | |
| BMY |
Bristol Myers Squibb Co
Healthcare
|
Held | 479,991 | $27,657,081 | 1.18% | |
| CEVA |
Ceva Inc
Technology
|
Held | 446,377 | $21,051,139 | 0.90% | |
| PINS |
Pinterest, Inc.
Communication Services
|
Added | 950,000 | $19,978,500 | 0.85% | |
| PRGS |
Progress Software Corp /Ma
Technology
|
Held | 508,608 | $17,079,056 | 0.73% | |
| EGAN |
EGAIN Corp
Technology
|
Held | 2,671,843 | $16,832,610 | 0.72% | |
| GRMN |
Garmin Ltd
Technology
|
Held | 48,000 | $11,401,920 | 0.49% | |
| ARM |
Arm Holdings PLC /Uk
Technology
|
Held | 20,000 | $7,091,400 | 0.30% | |
| INTC |
Intel Corp
Technology
|
Held | 23,010 | $3,212,886 | 0.14% |
Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.