Penbrook Management LLC

In its 13F for Q3 2024 (holdings as of September 30, 2024, filed October 15, 2024), Penbrook Management LLC reported 104 stock positions worth $153.8 million. Its top holding was Novo-Nordisk A/S-Spons ADR (NVO) at 24.2% of the portfolio, followed by Microsoft (MSFT, 7.6%) and Amazon.com (AMZN, 6.4%). Compared with Q2 2024, it opened 6 new positions, sold out of 3, added to 8 and reduced 55. The biggest buy was Airbnb Class A (ABNB, shares +185%) and the biggest sale Novo-Nordisk A/S-Spons ADR (NVO, shares −0%).

Most Recent 13F
Q2 2026
Location
NEW YORK, NY
CIK
0001381055
Portfolio Value
$153.8M (Q3 2024)
SEC Filing
0001381055-24-000005 ↗ filed Oct 15, 2024

Holdings Value

0$50.0M$100.0M$150.0M$200.0M Q1 2024: $161.3M Q1 2024 Q2 2024: $163.8M Q2 2024 Q3 2024: $153.8M $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 104 stocks · $153.8M
NVO Novo-Nordisk A/S-Spons ADR 24.19% 312,500 $37.2M Reduce -0.0%
MSFT Microsoft Corp. 7.59% 27,128 $11.7M Reduce -0.1%
AMZN Amazon.com Inc. 6.38% 52,640 $9.8M No change
MCO Moody's Corp. 4.21% 13,650 $6.5M No change
TRI Thomson Reuters Corp. 2.83% 25,485 $4.4M Reduce -0.1%
GOOG Alphabet Inc. Class C 2.77% 25,520 $4.3M Add +0.2%
GOOGL Alphabet Inc. Class A 2.50% 23,170 $3.8M No change
VRN Veren Inc. 1.77% 441,250 $2.7M Reduce -6.5%
TRGP Targa Resources Corp. 1.74% 18,082 $2.7M Reduce -17.4%
BX Blackstone Inc. 1.55% 15,600 $2.4M Reduce -6.0%
PLAB Photronics Inc. 1.49% 92,695 $2.3M Reduce -10.3%
ACLS Axcelis Technologies Inc. 1.33% 19,565 $2.1M Reduce -14.7%
NNY Nuveen New York Muni Val 1.20% 213,727 $1.8M No change
VET Vermilion Energy Inc. 1.17% 184,500 $1.8M Reduce -18.6%
ADP Automatic Data Processing 1.13% 6,300 $1.7M No change
FNF Fidelity National Financial 1.11% 27,559 $1.7M Reduce -19.6%
SA Seabridge Gold Inc. 1.09% 100,245 $1.7M Reduce -9.8%
BRK.B Berkshire Hathaway Inc. Class B 1.07% 3,580 $1.6M Reduce -0.7%
ALKT Alkami Technology Inc. 1.03% 50,035 $1.6M Reduce -10.1%
VMD Viemed Healthcare Inc. 1.02% 213,857 $1.6M Reduce -7.7%
COHU Cohu Inc. 0.92% 55,100 $1.4M Reduce -10.5%
BPOP Popular Inc. 0.91% 13,900 $1.4M Reduce -23.6%
NVGS Navigator Holdings Ltd. 0.88% 84,500 $1.4M Reduce -15.4%
VZ Verizon Communications Inc. 0.88% 30,171 $1.4M No change
SONY Sony Group Corp. - SP ADR 0.88% 14,000 $1.4M No change
ET Energy Transfer LP 0.87% 83,742 $1.3M Reduce -4.3%
SPY SS SPDR S&P 500 ETF Trust-US 0.86% 2,315 $1.3M No change
REGN Regeneron Pharmaceuticals 0.78% 1,147 $1.2M No change
FBP First Bancorp Puerto Rico 0.77% 55,600 $1.2M Reduce -21.5%
ABNB Airbnb Inc. Class A 0.76% 9,250 $1.2M Add +184.6%
OKE Oneok Inc. 0.71% 12,035 $1.1M Reduce -14.3%
QQQ Invesco QQQ Trust Series 1 0.70% 2,195 $1.1M Add +46.8%
COOP Mr Cooper Group Inc. 0.68% 11,400 $1.1M Reduce -6.4%
SYF Synchrony Financial 0.68% 21,000 $1.0M Reduce -15.5%
ABBV Abbvie Inc. 0.68% 5,273 $1.0M Reduce -1.9%
CSCO Cisco Systems Inc. 0.67% 19,400 $1.0M No change
META Meta Platforms Inc. Class A 0.67% 1,800 $1.0M No change
ASUR Asure Software Inc. 0.66% 112,035 $1.0M Add +81.3%
AAPL Apple Inc. 0.62% 4,104 $956K No change
USAC USA Compression Partners LP 0.62% 41,676 $955K Reduce -17.4%
HESM Hess Midstream LP Class A 0.62% 27,030 $953K Add +4.7%
PL Planet Labs PBC 0.62% 427,255 $953K Reduce -6.4%
SKY Champion Homes Inc. 0.60% 9,735 $923K Reduce -0.8%
WMB Williams Cos Inc. 0.59% 20,030 $914K Reduce -9.9%
MESO Mesoblast Ltd.- Spon ADR 0.57% 107,275 $876K Reduce -14.1%
KLIC Kulicke & Soffa Industries 0.55% 18,785 $848K Reduce -9.0%
BLFS Biolife Solutions Inc. 0.50% 30,650 $767K Reduce -21.4%
DAIO Data I/O Corp. 0.45% 271,450 $698K Reduce -13.0%
NU Nu Holdings Ltd./Cayman Isl-A filed as NU HLDGS LTD 0.44% 49,690 $678K New
NVS Novartis AG-Sponsored ADR 0.43% 5,760 $663K No change
SHEL Shell PLC-ADR 0.42% 9,900 $653K No change
LINC Lincoln Educational Services 0.42% 53,531 $639K Reduce -2.9%
EMR Emerson Electric Co. 0.41% 5,800 $634K No change
POWI Power Integrations Inc. 0.38% 9,200 $590K No change
IBM Intl Business Machines Corp. filed as INTERNATIONAL BUSINESS MACHS 0.38% 2,625 $580K Reduce -29.1%
NPKI NPK International Inc. filed as NEWPARK RES INC 0.37% 81,985 $568K Reduce -0.9%
BLDR Builders Firstsource Inc. 0.36% 2,873 $557K Reduce -40.1%
PUBM Pubmatic Inc. Class A 0.34% 35,045 $521K Reduce -18.1%
IVAC Intevac Inc. 0.33% 149,780 $509K Reduce -2.9%
PIM Franklin Master Interm IT-Ui filed as PUTNAM MASTER INTER INCOME T 0.33% 148,763 $504K Reduce -0.8%
IBB iShares Biotechnology ETF 0.32% 3,360 $489K Reduce -17.0%
XLG Invesco S&P 500 Top 50 ETF 0.31% 10,190 $484K Reduce -1.7%
CVE Cenovus Energy Inc. 0.31% 28,800 $482K No change
MRK Merck & Co. Inc. 0.31% 4,206 $478K Add +2.4%
HTGC Hercules Capital Inc. 0.31% 24,194 $475K Add +1.7%
RRC Range Resources Corp. 0.29% 14,640 $450K Reduce -9.0%
BBSI Barrett Business SVCS Inc. 0.29% 12,000 $450K Reduce -31.8%
PAR Par Technology Corp. 0.28% 8,230 $429K Reduce -1.2%
CYRX Cryoport Inc. 0.26% 49,595 $402K Add +49.7%
RSP Invesco S&P 500 Equal Weight 0.25% 2,170 $389K No change
DMLP Dorchester Minerals LP 0.24% 12,450 $375K Reduce -13.8%
WMT Walmart Inc. 0.24% 4,621 $373K No change
INVE Inve Technologies Inc. filed as IDENTIV INC 0.23% 100,594 $355K Reduce -1.3%
MP MP Materials Corp. 0.23% 19,990 $353K Reduce -1.4%
AEHR Aehr Test Systems 0.23% 27,000 $347K Reduce -2.1%
FIS Fidelity National Info Serv 0.22% 4,124 $345K No change
EPD Enterprise Products Partners 0.22% 11,490 $334K New
OESX Orion Energy Systems Inc. 0.22% 386,497 $331K Reduce -1.3%
FAF First American Financial 0.21% 4,950 $327K Reduce -10.8%
MGNI Magnite Inc. 0.21% 23,430 $325K New
UTG Reaves Utility Income Fund 0.21% 9,875 $324K No change
AFL Aflac Inc. 0.21% 2,850 $319K Reduce -30.5%
T AT&T Inc. 0.21% 14,455 $318K No change
JEPI JPMorgan Equity Premium Inco 0.20% 5,150 $306K No change
CVS CVS Health Corp. 0.20% 4,800 $302K Reduce -36.8%
ORI Old Republic Intl Corp. 0.19% 8,080 $286K Reduce -6.9%
JPC Nuveen Prefered & Income Opp 0.18% 33,621 $271K No change
BDX Becton Dickinson and Co. 0.17% 1,115 $269K No change
WLY Wiley (john) & Sons Class A 0.17% 5,500 $265K No change
TLT iShares 20+ Year Treasury BD 0.17% 2,695 $264K New
CVX Chevron Corp. 0.15% 1,555 $229K No change
WBS Webster Financial Corp. 0.14% 4,630 $216K New
COP Conocophillips 0.14% 2,025 $213K No change
BCOV Brightcove 0.13% 95,205 $206K New
VKQ Invesco Municipal Trust 0.13% 20,000 $205K No change
XGN Exagen Inc. 0.13% 62,955 $195K Reduce -9.4%
NUV Nuveen Municipal Value 0.12% 20,000 $180K No change
MIN Aberdeen Intermediate Inc. FD 0.10% 58,229 $158K No change
TUSK Mammoth Energy Services Inc. 0.09% 32,700 $134K Reduce -47.2%
F Ford Motor Co. filed as FORD MTR CO 0.08% 11,500 $121K No change
NXH Neighborhood Intelligence Inc. filed as BEYOND INC 0.08% 12,045 $121K Reduce -1.6%
INDI Indie Semiconductor Inc. Class A 0.05% 19,000 $76K No change
EOSE Eos Energy Enterprises Inc. 0.03% 16,500 $49K No change
CHGG Chegg Inc. 0.02% 15,235 $27K No change

Options reported separately and not counted above: MAGNITE INC calls ($7K), PUBMATIC INC COM CL A calls ($3K).

Portfolio Sells Q2 2024 → Q3 2024
NVO Novo-Nordisk A/S-Spons ADR Reduce -0.0% 24.19% −3.04
ACLS Axcelis Technologies Inc. Reduce -14.7% 1.33% −0.66
VRN Veren Inc. Reduce -6.5% 1.77% −0.50
FISV Fiserv Inc. Sold out 0.00% −0.39
VET Vermilion Energy Inc. Reduce -18.6% 1.17% −0.35
COHU Cohu Inc. Reduce -10.5% 0.92% −0.32
PUBM Pubmatic Inc. Class A Reduce -18.1% 0.34% −0.19
NVGS Navigator Holdings Ltd. Reduce -15.4% 0.88% −0.18
CEF Sprott Physical Gold and Sil Sold out 0.00% −0.13
USAC USA Compression Partners LP Reduce -17.4% 0.62% −0.11
AM Antero Midstream Corp. Sold out 0.00% −0.09
CVS CVS Health Corp. Reduce -36.8% 0.20% −0.08
BPOP Popular Inc. Reduce -23.6% 0.91% −0.08
DAIO Data I/O Corp. Reduce -13.0% 0.45% −0.07
KLIC Kulicke & Soffa Industries Reduce -9.0% 0.55% −0.07
PLAB Photronics Inc. Reduce -10.3% 1.49% −0.06
BBSI Barrett Business SVCS Inc. Reduce -31.8% 0.29% −0.06
NPKI NPK International Inc. Reduce -0.9% 0.37% −0.05
OESX Orion Energy Systems Inc. Reduce -1.3% 0.22% −0.05
BLDR Builders Firstsource Inc. Reduce -40.1% 0.36% −0.04
TUSK Mammoth Energy Services Inc. Reduce -47.2% 0.09% −0.04
INVE Inve Technologies Inc. Reduce -1.3% 0.23% −0.04
RRC Range Resources Corp. Reduce -9.0% 0.29% −0.04
SYF Synchrony Financial Reduce -15.5% 0.68% −0.03
IVAC Intevac Inc. Reduce -2.9% 0.33% −0.03
DMLP Dorchester Minerals LP Reduce -13.8% 0.24% −0.03
FBP First Bancorp Puerto Rico Reduce -21.5% 0.77% −0.03
IBB iShares Biotechnology ETF Reduce -17.0% 0.32% −0.02
NXH Neighborhood Intelligence Inc. Reduce -1.6% 0.08% −0.02
AFL Aflac Inc. Reduce -30.5% 0.21% −0.02
IBM Intl Business Machines Corp. Reduce -29.1% 0.38% −0.01
BLFS Biolife Solutions Inc. Reduce -21.4% 0.50% −0.01
ET Energy Transfer LP Reduce -4.3% 0.87% +0.01
OKE Oneok Inc. Reduce -14.3% 0.71% +0.01
LINC Lincoln Educational Services Reduce -2.9% 0.42% +0.02
WMB Williams Cos Inc. Reduce -9.9% 0.59% +0.02
TRGP Targa Resources Corp. Reduce -17.4% 1.74% +0.02
ORI Old Republic Intl Corp. Reduce -6.9% 0.19% +0.02
XLG Invesco S&P 500 Top 50 ETF Reduce -1.7% 0.31% +0.03
FAF First American Financial Reduce -10.8% 0.21% +0.03
PIM Franklin Master Interm IT-Ui Reduce -0.8% 0.33% +0.03
AEHR Aehr Test Systems Reduce -2.1% 0.23% +0.04
PAR Par Technology Corp. Reduce -1.2% 0.28% +0.04
XGN Exagen Inc. Reduce -9.4% 0.13% +0.05
MESO Mesoblast Ltd.- Spon ADR Reduce -14.1% 0.57% +0.05
ALKT Alkami Technology Inc. Reduce -10.1% 1.03% +0.06
MP MP Materials Corp. Reduce -1.4% 0.23% +0.07
FNF Fidelity National Financial Reduce -19.6% 1.11% +0.08
COOP Mr Cooper Group Inc. Reduce -6.4% 0.68% +0.08
VMD Viemed Healthcare Inc. Reduce -7.7% 1.02% +0.09

Portfolio Buys Q2 2024 → Q3 2024
ABNB Airbnb Inc. Class A Add +184.6% 0.76% +0.46
NU Nu Holdings Ltd./Cayman Isl-A New 0.44% +0.44
ASUR Asure Software Inc. Add +81.3% 0.66% +0.34
QQQ Invesco QQQ Trust Series 1 Add +46.8% 0.70% +0.26
EPD Enterprise Products Partners New 0.22% +0.22
MGNI Magnite Inc. New 0.21% +0.21
TLT iShares 20+ Year Treasury BD New 0.17% +0.17
WBS Webster Financial Corp. New 0.14% +0.14
BCOV Brightcove New 0.13% +0.13
CYRX Cryoport Inc. Add +49.7% 0.26% +0.12
HESM Hess Midstream LP Class A Add +4.7% 0.62% +0.05
HTGC Hercules Capital Inc. Add +1.7% 0.31% +0.01
MRK Merck & Co. Inc. Add +2.4% 0.31% +0.00
GOOG Alphabet Inc. Class C Add +0.2% 2.77% −0.08

Options Activity Q2 2024 → Q3 2024
MAGNITE INC call New 500 $7K
PUBMATIC INC COM CL A call New 200 $3K

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