Penbrook Management LLC

In its 13F for Q1 2024 (holdings as of March 31, 2024, filed April 18, 2024), Penbrook Management LLC reported 102 stock positions worth $161.3 million. Its top holding was Novo-Nordisk A/S-Spons ADR (NVO) at 24.9% of the portfolio, followed by Microsoft (MSFT, 7.2%) and Amazon.com (AMZN, 5.7%). Compared with Q4 2023, it opened 4 new positions, sold out of 4, added to 11 and reduced 54. The biggest buy was a new position in Mr Cooper (COOP) and the biggest sale Axcelis Technologies (ACLS, shares −1%).

Most Recent 13F
Q2 2026
Location
NEW YORK, NY
CIK
0001381055
Portfolio Value
$161.3M (Q1 2024)
SEC Filing
0001381055-24-000002 ↗ filed Apr 18, 2024

Holdings Value

0$50.0M$100.0M$150.0M$200.0M Q1 2024: $161.3M $161.3M Q1 2024 Q2 2024: $163.8M Q2 2024 Q3 2024: $153.8M Q3 2024 Q4 2024: $146.6M Q4 2024 Q1 2025: $132.3M Q1 2025 Q2 2025: $133.0M Q2 2025 Q3 2025: $143.2M Q3 2025 Q4 2025: $145.0M Q4 2025 Q1 2026: $132.1M Q1 2026 Q2 2026: $156.8M Q2 2026

Holdings 102 stocks · $161.3M
NVO Novo-Nordisk A/S-Spons ADR 24.88% 312,600 $40.1M Reduce -0.2%
MSFT Microsoft Corp. 7.20% 27,613 $11.6M Reduce -1.7%
AMZN Amazon.com Inc. 5.65% 50,580 $9.1M No change
MCO Moody's Corp. 3.35% 13,750 $5.4M No change
ACLS Axcelis Technologies Inc. 2.93% 42,460 $4.7M Reduce -1.4%
TRI Thomson Reuters Corp. 2.46% 25,509 $4.0M No change
CRESCENT PT ENERGY CORP 2.42% 476,460 $3.9M Reduce -4.9%
GOOG Alphabet Inc. Class C 2.40% 25,470 $3.9M Reduce -1.0%
GOOGL Alphabet Inc. Class A 2.17% 23,170 $3.5M Add +0.3%
PLAB Photronics Inc. 2.01% 114,495 $3.2M Reduce -6.0%
VET Vermilion Energy Inc. 1.76% 227,800 $2.8M Reduce -7.8%
TRGP Targa Resources Corp. 1.59% 22,873 $2.6M Reduce -17.9%
BX Blackstone Inc. 1.43% 17,523 $2.3M No change
BLDR Builders Firstsource Inc. 1.36% 10,520 $2.2M Reduce -17.8%
COHU Cohu Inc. 1.31% 63,595 $2.1M Reduce -6.3%
FNF Fidelity National Financial 1.15% 35,009 $1.9M Reduce -11.5%
NNY Nuveen New York Muni Val 1.10% 213,727 $1.8M No change
BPOP Popular Inc. 1.01% 18,450 $1.6M Reduce -8.7%
ADP Automatic Data Processing 0.98% 6,300 $1.6M No change
BRK.B Berkshire Hathaway Inc. Class B 0.97% 3,705 $1.6M No change
NVGS Navigator Holdings Ltd. 0.95% 99,900 $1.5M Reduce -8.3%
ALKT Alkami Technology Inc. 0.89% 58,750 $1.4M Reduce -5.2%
ET Energy Transfer LP 0.85% 87,496 $1.4M Reduce -7.5%
USAC USA Compression Partners LP 0.83% 50,476 $1.3M Reduce -16.9%
VZ Verizon Communications Inc. 0.78% 30,171 $1.3M Add +2.4%
SPY SS SPDR S&P 500 ETF Trust-US 0.78% 2,415 $1.3M No change
FBP First Bancorp Puerto Rico 0.78% 71,400 $1.3M Reduce -10.2%
SONY Sony Group Corp. - SP ADR 0.74% 14,000 $1.2M No change
SA Seabridge Gold Inc. 0.71% 76,020 $1.1M Reduce -10.5%
OKE Oneok Inc. 0.70% 14,035 $1.1M Reduce -6.7%
KLIC Kulicke & Soffa Industries 0.69% 22,285 $1.1M Reduce -1.3%
REGN Regeneron Pharmaceuticals 0.68% 1,147 $1.1M No change
PUBM Pubmatic Inc. Class A 0.68% 46,510 $1.1M Reduce -0.6%
DAIO Data I/O Corp. 0.68% 312,050 $1.1M Reduce -8.8%
PL Planet Labs PBC 0.67% 426,425 $1.1M Reduce -3.4%
SYF Synchrony Financial 0.67% 24,950 $1.1M Reduce -0.8%
ABBV Abbvie Inc. 0.61% 5,373 $978K Reduce -1.1%
CSCO Cisco Systems Inc. 0.60% 19,400 $968K No change
COOP Mr Cooper Group Inc. 0.59% 12,180 $949K New
HESM Hess Midstream LP Class A 0.58% 25,830 $933K No change
META Meta Platforms Inc. Class A 0.54% 1,800 $874K No change
WMB Williams Cos Inc. 0.54% 22,330 $870K Reduce -8.2%
INVE Inve Technologies Inc. filed as IDENTIV INC 0.52% 105,499 $836K Reduce -1.7%
IBM Intl Business Machines Corp. filed as INTERNATIONAL BUSINESS MACHS 0.51% 4,295 $820K Reduce -2.2%
AAPL Apple Inc. 0.51% 4,770 $818K No change
SKY Champion Homes Inc. filed as SKYLINE CHAMPION CORPORATION 0.50% 9,550 $812K Reduce -1.6%
BLFS Biolife Solutions Inc. 0.46% 40,250 $747K Reduce -1.7%
FISV Fiserv Inc. 0.43% 4,330 $692K No change
EMR Emerson Electric Co. 0.42% 6,000 $681K No change
RSPG Invesco S&P 500 Equal Weight 0.42% 8,065 $670K Reduce -2.1%
SHEL Shell PLC-ADR 0.41% 9,900 $664K No change
POWI Power Integrations Inc. 0.41% 9,200 $658K No change
QQQ Invesco QQQ Trust Series 1 0.40% 1,470 $653K Reduce -8.4%
VMD Viemed Healthcare Inc. 0.40% 68,937 $650K Reduce -1.2%
CVS CVS Health Corp. 0.40% 8,000 $638K Reduce -8.1%
MESO Mesoblast Ltd.- Spon ADR 0.39% 125,175 $627K Reduce -54.5%
IVAC Intevac Inc. 0.39% 162,835 $625K Reduce -5.3%
NPKI NPK International Inc. filed as NEWPARK RES INC 0.38% 85,435 $617K Reduce -1.6%
CYRX Cryoport Inc. 0.38% 34,180 $605K Reduce -1.7%
LINC Lincoln Educational Services 0.37% 57,961 $599K Add +1.5%
CVE Cenovus Energy Inc. 0.36% 28,800 $576K No change
KOPN Kopin Corp. 0.35% 315,075 $567K Reduce -2.3%
BBSI Barrett Business SVCS Inc. 0.35% 4,400 $558K Reduce -17.0%
NVS Novartis AG-Sponsored ADR 0.35% 5,760 $557K No change
IBB iShares Biotechnology ETF 0.34% 4,050 $556K Add +2.3%
RRC Range Resources Corp. 0.34% 15,790 $544K Reduce -17.8%
MRK Merck & Co. Inc. 0.34% 4,106 $542K Add +13.9%
ABNB Airbnb Inc. Class A 0.33% 3,200 $528K No change
ASUR Asure Software Inc. 0.31% 63,710 $496K Add +0.3%
DMLP Dorchester Minerals LP 0.30% 14,450 $487K Reduce -4.0%
PIM Franklin Master Interm IT-Ui filed as PUTNAM MASTER INTER INCOME T 0.30% 149,963 $480K No change
NXH Neighborhood Intelligence Inc. filed as BEYOND INC 0.29% 12,855 $462K New
HTGC Hercules Capital Inc. 0.27% 23,696 $437K Reduce -0.9%
RSP Invesco S&P 500 Equal Weight 0.23% 2,170 $368K No change
OESX Orion Energy Systems Inc. 0.22% 405,247 $353K Reduce -1.5%
AFL Aflac Inc. 0.22% 4,100 $352K No change
FAF First American Financial 0.21% 5,650 $345K Reduce -25.2%
IMMR Immersion Corporation 0.20% 42,530 $318K No change
FIS Fidelity National Info Serv 0.19% 4,124 $306K Add +5.1%
MP MP Materials Corp. 0.19% 21,225 $304K Reduce -2.3%
JEPI JPMorgan Equity Premium Inco 0.18% 5,150 $298K Add +4.0%
CHGG Chegg Inc. 0.18% 37,775 $286K Reduce -3.9%
UTG Reaves Utility Income Fund 0.17% 10,275 $277K Reduce -2.8%
BDX Becton Dickinson and Co. 0.17% 1,115 $276K Reduce -39.4%
CVX Chevron Corp. 0.17% 1,730 $273K Add +3.9%
COP Conocophillips 0.17% 2,125 $270K Reduce -28.8%
ORI Old Republic Intl Corp. 0.17% 8,680 $267K New
T AT&T Inc. 0.16% 15,055 $265K Reduce -3.2%
WBS Webster Financial Corp. 0.16% 5,130 $260K Add +9.6%
CAT Caterpillar Inc. 0.16% 700 $257K No change
QDEL Quidelortho Corp. 0.16% 5,240 $251K No change
JPC Nuveen Prefered & Income Opp 0.15% 33,621 $242K No change
TUSK Mammoth Energy Services Inc. 0.15% 64,900 $236K Reduce -15.6%
WLY Wiley (john) & Sons Class A 0.13% 5,500 $210K New
VKQ Invesco Municipal Trust 0.12% 20,000 $194K No change
NUV Nuveen Municipal Value 0.11% 20,000 $174K No change
MIN Aberdeen Intermediate Inc. FD 0.10% 62,929 $167K Reduce -3.8%
F Ford Motor Co. filed as FORD MTR CO DEL 0.09% 11,500 $153K Reduce -5.7%
AM Antero Midstream Corp. 0.09% 10,000 $141K No change
INDI Indie Semiconductor Inc. Class A 0.08% 19,000 $135K No change
XGN Exagen Inc. 0.08% 76,710 $122K Add +1.3%
EOSE Eos Energy Enterprises Inc. 0.01% 12,500 $13K No change

Portfolio Sells Q4 2023 → Q1 2024
ACLS Axcelis Technologies Inc. Reduce -1.4% 2.93% −0.82
PLAB Photronics Inc. Reduce -6.0% 2.01% −0.56
COHU Cohu Inc. Reduce -6.3% 1.31% −0.30
VET Vermilion Energy Inc. Reduce -7.8% 1.76% −0.25
FNF Fidelity National Financial Reduce -11.5% 1.15% −0.20
AEHR Aehr Test Systems Sold out 0.00% −0.14
KLIC Kulicke & Soffa Industries Reduce -1.3% 0.69% −0.14
BDX Becton Dickinson and Co. Reduce -39.4% 0.17% −0.13
CHGG Chegg Inc. Reduce -3.9% 0.18% −0.12
ALKT Alkami Technology Inc. Reduce -5.2% 0.89% −0.11
NVGS Navigator Holdings Ltd. Reduce -8.3% 0.95% −0.11
FAF First American Financial Reduce -25.2% 0.21% −0.11
IVAC Intevac Inc. Reduce -5.3% 0.39% −0.11
BPOP Popular Inc. Reduce -8.7% 1.01% −0.11
FBP First Bancorp Puerto Rico Reduce -10.2% 0.78% −0.10
MP MP Materials Corp. Reduce -2.3% 0.19% −0.10
USAC USA Compression Partners LP Reduce -16.9% 0.83% −0.10
TELESIS BIO INC Sold out 0.00% −0.10
EDGIO INC Sold out 0.00% −0.09
KOPN Kopin Corp. Reduce -2.3% 0.35% −0.09
IDN Intellicheck Inc. Sold out 0.00% −0.09
TUSK Mammoth Energy Services Inc. Reduce -15.6% 0.15% −0.08
INVE Inve Technologies Inc. Reduce -1.7% 0.52% −0.08
BLDR Builders Firstsource Inc. Reduce -17.8% 1.36% −0.08
BBSI Barrett Business SVCS Inc. Reduce -17.0% 0.35% −0.07
CVS CVS Health Corp. Reduce -8.1% 0.40% −0.07
COP Conocophillips Reduce -28.8% 0.17% −0.07
PL Planet Labs PBC Reduce -3.4% 0.67% −0.06
RRC Range Resources Corp. Reduce -17.8% 0.34% −0.06
TRGP Targa Resources Corp. Reduce -17.9% 1.59% −0.04
QQQ Invesco QQQ Trust Series 1 Reduce -8.4% 0.40% −0.04
GOOG Alphabet Inc. Class C Reduce -1.0% 2.40% −0.03
WMB Williams Cos Inc. Reduce -8.2% 0.54% −0.03
ET Energy Transfer LP Reduce -7.5% 0.85% −0.02
OESX Orion Energy Systems Inc. Reduce -1.5% 0.22% −0.02
DMLP Dorchester Minerals LP Reduce -4.0% 0.30% −0.02
UTG Reaves Utility Income Fund Reduce -2.8% 0.17% −0.02
MIN Aberdeen Intermediate Inc. FD Reduce -3.8% 0.10% −0.01
OKE Oneok Inc. Reduce -6.7% 0.70% −0.01
T AT&T Inc. Reduce -3.2% 0.16% −0.01
F Ford Motor Co. Reduce -5.7% 0.09% −0.01
NPKI NPK International Inc. Reduce -1.6% 0.38% −0.01
HTGC Hercules Capital Inc. Reduce -0.9% 0.27% +0.00
DAIO Data I/O Corp. Reduce -8.8% 0.68% +0.00
RSPG Invesco S&P 500 Equal Weight Reduce -2.1% 0.42% +0.01
CYRX Cryoport Inc. Reduce -1.7% 0.38% +0.01
BLFS Biolife Solutions Inc. Reduce -1.7% 0.46% +0.02
SKY Champion Homes Inc. Reduce -1.6% 0.50% +0.02
SA Seabridge Gold Inc. Reduce -10.5% 0.71% +0.02
SYF Synchrony Financial Reduce -0.8% 0.67% +0.02

Portfolio Buys Q4 2023 → Q1 2024
COOP Mr Cooper Group Inc. New 0.59% +0.59
NXH Neighborhood Intelligence Inc. New 0.29% +0.29
ORI Old Republic Intl Corp. New 0.17% +0.17
WLY Wiley (john) & Sons Class A New 0.13% +0.13
MRK Merck & Co. Inc. Add +13.9% 0.34% +0.07
VZ Verizon Communications Inc. Add +2.4% 0.78% +0.04
FIS Fidelity National Info Serv Add +5.1% 0.19% +0.03
CVX Chevron Corp. Add +3.9% 0.17% +0.00
JEPI JPMorgan Equity Premium Inco Add +4.0% 0.18% +0.00
WBS Webster Financial Corp. Add +9.6% 0.16% +0.00
GOOGL Alphabet Inc. Class A Add +0.3% 2.17% −0.00
LINC Lincoln Educational Services Add +1.5% 0.37% −0.01
IBB iShares Biotechnology ETF Add +2.3% 0.34% −0.02
XGN Exagen Inc. Add +1.3% 0.08% −0.03
ASUR Asure Software Inc. Add +0.3% 0.31% −0.10

Options Activity Q4 2023 → Q1 2024
PHOTRONICS INC put Sold out 10,000 $314before exit

Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 101$156.8MNVO, AMZN, GOOGL, MSFT, GOOG
Q1 2026 93$132.1MNVO, AMZN, MSFT, GOOGL, GOOG
Q4 2025 97$145.0MNVO, AMZN, MSFT, GOOGL, GOOG
Q3 2025 104$143.2MNVO, MSFT, AMZN, MCO, GOOGL
Q2 2025Amended 102$133.0MNVO, MSFT, AMZN, MCO, TRI
Q1 2025 107$132.3MNVO, AMZN, MSFT, MCO, TRI
Q4 2024 110$146.6MNVO, AMZN, MSFT, MCO, GOOG
Q3 2024 104$153.8MNVO, MSFT, AMZN, MCO, TRI
Q2 2024 101$163.8MNVO, MSFT, AMZN, MCO, GOOG
Q1 2024 102$161.3MNVO, MSFT, AMZN, MCO, ACLS