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Livermore
Livermore
ZHEN

Penbrook Management LLC

SEC CIK
0001381055
Latest filing
Jul 23, 2026

Holdings in Q1 2024

Holdings as of Mar 31, 2024, filed Apr 18, 2024. Long positions only; changes compare share counts with Q4 2023.

Institution overview
Positions
102
0 vs. Q4 2023
Portfolio value
$161.3M
+$12.5M (+8.4%) vs. Q4 2023
Filed
Apr 18, 2024
SEC
Holdings of Penbrook Management LLC in Q1 2024
SecurityClassSharesValue% of portfolioShare changeActionHistory
NVONovo Nordisk A SADR312,600$40.1M24.9%−600−0.2%ReducedHistory
MSFTMicrosoft CorpStock27,613$11.6M7.2%−475−1.7%ReducedHistory
AMZNAmazon Com IncStock50,580$9.12M5.7%00.0%UnchangedHistory
MCOMoodys CorpStock13,750$5.40M3.3%00.0%UnchangedHistory
ACLSAxcelis Technologies IncStock42,460$4.74M2.9%−580−1.3%ReducedHistory
TRIThomson Reuters CorpCOM NO PAR25,509$3.97M2.5%00.0%UnchangedHistory
Crescent PT Energy Corp22576C101COM476,460$3.90M2.4%−24,600−4.9%Reduced–
GOOGAlphabet Inc.Stock25,470$3.88M2.4%−250−1.0%ReducedHistory
GOOGLAlphabet Inc.Stock23,170$3.50M2.2%+70+0.3%AddedHistory
PLABPhotronics IncCOM114,495$3.24M2.0%−7,305−6.0%ReducedHistory
VETVermilion Energy Inc.COM227,800$2.84M1.8%−19,350−7.8%ReducedHistory
TRGPTarga Resources Corp.COM22,873$2.56M1.6%−5,000−17.9%ReducedHistory
BXBlackstone Inc.COM17,523$2.30M1.4%00.0%UnchangedHistory
BLDRBuilders FirstSource, Inc.Stock10,520$2.19M1.4%−2,281−17.8%ReducedHistory
COHUCohu IncCOM63,595$2.12M1.3%−4,250−6.3%ReducedHistory
FNFFidelity National Financial, Inc.COM SHS35,009$1.86M1.2%−4,560−11.5%ReducedHistory
NNYNuveen New York Municipal Value FundCOM213,727$1.78M1.1%00.0%UnchangedHistory
BPOPPopular, Inc.COM NEW18,450$1.63M1.0%−1,765−8.7%ReducedHistory
ADPAutomatic Data Processing IncStock6,300$1.57M1.0%00.0%UnchangedHistory
BRK.BBerkshire Hathaway IncStock3,705$1.56M1.0%00.0%UnchangedHistory
NVGSNavigator Holdings Ltd.SHS99,900$1.53M1.0%−9,000−8.3%ReducedHistory
ALKTAlkami Technology, Inc.Stock58,750$1.44M0.9%−3,200−5.2%ReducedHistory
ETEnergy Transfer LPCOM UT LTD PTN87,496$1.38M0.9%−7,115−7.5%ReducedHistory
USACUSA Compression Partners, LPCOMUNIT LTDPAR50,476$1.35M0.8%−10,300−16.9%ReducedHistory
VZVerizon Communications IncStock30,171$1.27M0.8%+700+2.4%AddedHistory
SPYSPDR S&P 500 ETF TrustETF2,415$1.26M0.8%00.0%UnchangedHistory
FBPFirst BancorpCOM NEW71,400$1.25M0.8%−8,100−10.2%ReducedHistory
SONYSony Group CorpSPONSORED ADR14,000$1.20M0.7%00.0%UnchangedHistory
SASeabridge Gold IncCOM76,020$1.15M0.7%−8,910−10.5%ReducedHistory
OKEONEOK IncCOM14,035$1.13M0.7%−1,000−6.7%ReducedHistory
KLICKulicke & Soffa Industries IncCOM22,285$1.12M0.7%−300−1.3%ReducedHistory
REGNRegeneron Pharmaceuticals, Inc.COM1,147$1.10M0.7%00.0%UnchangedHistory
PUBMPubMatic, Inc.COM CL A46,510$1.10M0.7%−300−0.6%ReducedHistory
DAIOData I/O CorpCOM312,050$1.10M0.7%−30,300−8.9%ReducedHistory
PLPlanet Labs PBCCOM CL A426,425$1.09M0.7%−15,000−3.4%ReducedHistory
SYFSynchrony FinancialCOM24,950$1.08M0.7%−200−0.8%ReducedHistory
ABBVAbbVie Inc.Stock5,373$978.4K0.6%−58−1.1%ReducedHistory
CSCOCisco Systems, Inc.Stock19,400$968.3K0.6%00.0%UnchangedHistory
COOPMaverick Merger Sub 2, LLCCOM12,180$949.4K0.6%+12,180NewHistory
HESMHess Midstream LPCL A SHS25,830$933.2K0.6%00.0%UnchangedHistory
METAMeta Platforms, Inc.Stock1,800$874.0K0.5%00.0%UnchangedHistory
WMBWilliams Companies, Inc.COM22,330$870.2K0.5%−2,000−8.2%ReducedHistory
INVEINVE Technologies, Inc.COM NEW105,499$835.6K0.5%−1,800−1.7%ReducedHistory
IBMInternational Business Machines CorpStock4,295$820.2K0.5%−95−2.2%ReducedHistory
AAPLApple Inc.Stock4,770$818.0K0.5%00.0%UnchangedHistory
SKYChampion Homes, Inc.Stock9,550$811.8K0.5%−150−1.5%ReducedHistory
BLFSBiolife Solutions IncCOM NEW40,250$746.6K0.5%−700−1.7%ReducedHistory
FISVFiserv IncStock4,330$692.0K0.4%00.0%UnchangedHistory
EMREmerson Electric CoStock6,000$680.5K0.4%00.0%UnchangedHistory
Invesco Exchange Traded FD T46137V365S&P500 EQL ENR8,065$670.0K0.4%−175−2.1%Reduced–
SHELShell plcADR9,900$663.7K0.4%00.0%UnchangedHistory
POWIPower Integrations IncCOM9,200$658.3K0.4%00.0%UnchangedHistory
Invesco QQQ Trust Series I46090E103ETF1,470$652.7K0.4%−135−8.4%Reduced–
VMDViemed Healthcare, Inc.COM68,937$650.1K0.4%−850−1.2%ReducedHistory
CVSCVS Health CorpStock8,000$638.1K0.4%−700−8.0%ReducedHistory
MESOMesoblast LtdADR125,175$627.1K0.4%−12,500−9.1%ReducedConverted for a 1-for-2 splitHistory
IVACIntevac IncCOM162,835$625.3K0.4%−9,050−5.3%ReducedHistory
NPKINPK International Inc.COM SHS85,435$616.8K0.4%−1,400−1.6%ReducedHistory
CYRXCryoport, Inc.COM PAR $0.00134,180$605.0K0.4%−600−1.7%ReducedHistory
LINCLincoln Educational Services CorpCOM57,961$598.7K0.4%+856+1.5%AddedHistory
CVECenovus Energy Inc.COM28,800$575.7K0.4%00.0%UnchangedHistory
KOPNKopin CorpCOM315,075$567.1K0.4%−7,500−2.3%ReducedHistory
BBSIBarrett Business Services IncCOM4,400$557.6K0.3%−900−17.0%ReducedHistory
NVSNovartis AGADR5,760$557.2K0.3%00.0%UnchangedHistory
iShares Tr464287556ISHARES BIOTECH4,050$555.7K0.3%+90+2.3%Added–
RRCRange Resources CorpCOM15,790$543.6K0.3%−3,410−17.8%ReducedHistory
MRKMerck & Co., Inc.Stock4,106$541.8K0.3%+500+13.9%AddedHistory
ABNBAirbnb, Inc.Stock3,200$527.9K0.3%00.0%UnchangedHistory
ASURAsure Software IncCOM63,710$495.7K0.3%+200+0.3%AddedHistory
DMLPDorchester Minerals, L.P.COM UNIT14,450$487.3K0.3%−600−4.0%ReducedHistory
PIMFranklin Master Intermediate Income TrustSH BEN INT149,963$479.9K0.3%00.0%UnchangedHistory
NXHNeighborhood Intelligence, Inc.COM12,855$461.6K0.3%+12,855NewHistory
HTGCHercules Capital, Inc.COM23,696$437.2K0.3%−208−0.9%ReducedHistory
Invesco Exchange Traded FD T46137V357S&P500 EQL WGT2,170$367.5K0.2%00.0%Unchanged–
OESXOrion Energy Systems, Inc.COM405,247$352.6K0.2%−6,200−1.5%ReducedHistory
AFLAflac IncStock4,100$352.0K0.2%00.0%UnchangedHistory
FAFFirst American Financial CorpStock5,650$344.9K0.2%−1,900−25.2%ReducedHistory
IMMRImmersion CorpCOM42,530$318.1K0.2%00.0%UnchangedHistory
FISFidelity National Information Services, Inc.Stock4,124$305.9K0.2%+200+5.1%AddedHistory
MPMP Materials Corp.COM CL A21,225$303.5K0.2%−500−2.3%ReducedHistory
J P Morgan Exchange Traded F46641Q332EQUITY PREMIUM5,150$298.0K0.2%+200+4.0%Added–
CHGGChegg, IncCOM37,775$286.0K0.2%−1,525−3.9%ReducedHistory
UTGReaves Utility Income FundCOM SH BEN INT10,275$277.0K0.2%−300−2.8%ReducedHistory
BDXBecton Dickinson & CoStock1,115$275.9K0.2%−724−39.4%ReducedHistory
CVXChevron CorpStock1,730$272.9K0.2%+65+3.9%AddedHistory
COPConocoPhillipsStock2,125$270.5K0.2%−860−28.8%ReducedHistory
ORIOld Republic International CorpCOM8,680$266.6K0.2%+8,680NewHistory
TAT&T Inc.Stock15,055$265.0K0.2%−500−3.2%ReducedHistory
WBSWebster Financial CorpCOM5,130$260.4K0.2%+450+9.6%AddedHistory
CATCaterpillar IncStock700$256.5K0.2%00.0%UnchangedHistory
QDELQuidelOrtho CorpCOM5,240$251.2K0.2%00.0%UnchangedHistory
JPCNuveen Preferred & Income Opportunities FundCOM33,621$241.7K0.1%00.0%UnchangedHistory
TUSKMammoth Energy Services, Inc.COM64,900$236.2K0.1%−12,000−15.6%ReducedHistory
WLYJohn Wiley & Sons, Inc.CL A5,500$209.7K0.1%+5,500NewHistory
VKQInvesco Municipal TrustCOM20,000$194.0K0.1%00.0%UnchangedHistory
NUVNuveen Municipal Value Fund IncCOM20,000$174.2K0.1%00.0%UnchangedHistory
MINAberdeen Intermediate Income FundSH BEN INT62,929$167.4K0.1%−2,500−3.8%ReducedHistory
FFord Motor CoStock11,500$152.7K0.1%−700−5.7%ReducedHistory
AMAntero Midstream CorpStock10,000$140.6K0.1%00.0%UnchangedHistory
INDIindie Semiconductor, Inc.CLASS A COM19,000$134.5K0.1%00.0%UnchangedHistory

Sold out since Q4 2023 (4)

Positions held at the end of Q4 2023 that are gone from this filing.

Positions of Penbrook Management LLC sold out since Q4 2023
SecurityClassShares in Q4 2023Value in Q4 2023% of portfolio in Q4 2023History
AEHRAehr Test SystemsCOM8,080$214.4K0.1%History
TBIOTelesis Bio Inc.COM354,325$141.4K0.1%History
EGIOEdgio, Inc.COM408,120$139.8K0.1%History
IDNIntellicheck, Inc.COM NEW68,400$130.0K0.1%History