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OAKTOP CAPITAL MANAGEMENT II, L.P.

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13F filer, CIK 1550660, Chatham, NJ

OAKTOP CAPITAL MANAGEMENT II, L.P. reported $1,179,942,532 across 13 holdings for the quarter ended 2025-12-31, in a 13F-HR filed 2026-02-17. Its ten largest share positions make up 98.29% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001172661-26-001059

Period
2025-12-31
Reported value
$1.18B
Holdings
13
Top 10 weight
98.29%
New
0
Sold out
2

Largest buys vs the previous quarter

SecurityShares changeApprox. value
PINSadded+300,000$7.77M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
LRCXreduced-300,676-$51.5M
KLACreduced-18,137-$22M
PRTSexited-4,597,302-$3.27M
PETSexited-435,844-$1.09M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q4 2025

Share positions as resolved from 13F-HR 0001172661-26-001059, largest first. % of portfolio is the value over $1,179,942,532, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
LRCXLAM RESEARCH CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 2,691,460 shares; 2025Q1: 2,691,460 shares; 2025Q2: 2,691,460 shares; 2025Q3: 2,691,460 shares; 2025Q4: 2,390,784 shares 2,390,784$409M34.68%-300,676Timeline
KLACKLA CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 391,581 shares; 2024Q4: 382,075 shares; 2025Q1: 364,111 shares; 2025Q2: 340,999 shares; 2025Q3: 328,875 shares; 2025Q4: 310,738 shares 310,738$378M32%-18,137Timeline
ADIANALOG DEVICES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 466,196 shares; 2024Q4: 466,196 shares; 2025Q1: 466,196 shares; 2025Q2: 466,196 shares; 2025Q3: 466,196 shares; 2025Q4: 466,196 shares 466,196$126M10.72%0Timeline
AVGOBROADCOM INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 362,760 shares; 2024Q4: 362,760 shares; 2025Q1: 362,760 shares; 2025Q2: 362,760 shares; 2025Q3: 362,760 shares; 2025Q4: 362,760 shares 362,760$126M10.64%0Timeline
EGANEGAIN CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 2,671,843 shares; 2024Q4: 2,671,843 shares; 2025Q1: 2,671,843 shares; 2025Q2: 2,671,843 shares; 2025Q3: 2,671,843 shares; 2025Q4: 2,671,843 shares 2,671,843$27.5M2.33%0Timeline
BMYBRISTOL-MYERS SQUIBB COQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 479,991 shares; 2024Q4: 479,991 shares; 2025Q1: 479,991 shares; 2025Q2: 479,991 shares; 2025Q3: 479,991 shares; 2025Q4: 479,991 shares 479,991$25.9M2.19%0Timeline
PRGSPROGRESS SOFTWARE CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 508,608 shares; 2024Q4: 508,608 shares; 2025Q1: 508,608 shares; 2025Q2: 508,608 shares; 2025Q3: 508,608 shares; 2025Q4: 508,608 shares 508,608$21.8M1.85%0Timeline
PINSPINTEREST INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 250,000 shares; 2024Q4: 300,000 shares; 2025Q1: 350,000 shares; 2025Q2: 350,000 shares; 2025Q3: 350,000 shares; 2025Q4: 650,000 shares 650,000$16.8M1.43%+300,000Timeline
DELLDELL TECHNOLOGIES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 130,619 shares; 2024Q4: 130,619 shares; 2025Q1: 130,619 shares; 2025Q2: 130,619 shares; 2025Q3: 130,619 shares; 2025Q4: 130,619 shares 130,619$16.4M1.39%0Timeline
ASPNASPEN AEROGELS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 3,540,525 shares; 2024Q4: 3,740,525 shares; 2025Q1: 4,394,525 shares; 2025Q2: 4,394,525 shares; 2025Q3: 4,394,525 shares; 2025Q4: 4,394,525 shares 4,394,525$12.4M1.05%0Timeline
GRMNGARMIN LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 48,000 shares; 2024Q4: 48,000 shares; 2025Q1: 48,000 shares; 2025Q2: 48,000 shares; 2025Q3: 48,000 shares; 2025Q4: 48,000 shares 48,000$9.74M0.83%0Timeline
CEVACEVA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 631,377 shares; 2024Q4: 631,377 shares; 2025Q1: 631,377 shares; 2025Q2: 446,377 shares; 2025Q3: 446,377 shares; 2025Q4: 446,377 shares 446,377$9.61M0.81%0Timeline
INTCINTEL CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 23,010 shares; 2024Q4: 23,010 shares; 2025Q1: 23,010 shares; 2025Q2: 23,010 shares; 2025Q3: 23,010 shares; 2025Q4: 23,010 shares 23,010$849K0.07%0Timeline

Sold out in Q4 2025

Positions in the previous quarter's report that this quarter's report no longer lists.

SecurityShares beforeValue beforeType
PRTSCARPARTS COM INC4,597,302$3.27Mshares
PETSPETMED EXPRESS INC435,844$1.09Mshares

How Q4 2025 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0001172661-26-001059 base2026-02-17acceptance time not in the bulk data set