Penbrook Management LLC

In its 13F for Q4 2025 (holdings as of December 31, 2025, filed January 6, 2026), Penbrook Management LLC reported 97 stock positions worth $145.0 million. Its top holding was Novo-Nordisk A/S-Spons ADR (NVO) at 11.1% of the portfolio, followed by Amazon.com (AMZN, 8.2%) and Microsoft (MSFT, 7.6%). Compared with Q3 2025, it opened 5 new positions, sold out of 12, added to 17 and reduced 52. The biggest buy was a new position in Doubleverify (DV) and the biggest sale Microsoft (MSFT, shares −6%).

Most Recent 13F
Q2 2026
Location
NEW YORK, NY
CIK
0001381055
Portfolio Value
$145.0M (Q4 2025)
SEC Filing
0001381055-26-000001 ↗ filed Jan 6, 2026

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 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 $145.0M Q4 2025 Q1 2026: $132.1M Q1 2026 Q2 2026: $156.8M Q2 2026

Holdings 97 stocks · $145.0M

NVO Novo-Nordisk A/S-Spons ADR 11.10% 316,400 $16.1M Add +1.5%
AMZN Amazon.com Inc. 8.24% 51,760 $11.9M Add +0.0%
MSFT Microsoft Corp. 7.59% 22,750 $11.0M Reduce -6.4%
GOOGL Alphabet Inc. Class A 5.00% 23,170 $7.3M No change
GOOG Alphabet Inc. Class C 4.88% 22,554 $7.1M Reduce -0.7%
MCO Moody's Corp. 4.79% 13,600 $6.9M Reduce -0.4%
PL Planet Labs PBC 4.02% 295,245 $5.8M Reduce -6.0%
PLAB Photronics Inc. 2.44% 110,680 $3.5M Reduce -0.6%
TRI Thomson Reuters Corp. 2.27% 24,948 $3.3M Add +0.4%
ALKT Alkami Technology Inc. 2.03% 127,685 $2.9M Add +2.9%
SA Seabridge Gold Inc. 1.96% 95,990 $2.8M Reduce -0.6%
ELVA Electrovaya Inc. 1.91% 349,861 $2.8M Add +13.6%
AEHR Aehr Test Systems 1.60% 114,900 $2.3M Reduce -1.2%
BX Blackstone Inc. 1.57% 14,800 $2.3M No change
VMD Viemed Healthcare Inc. 1.39% 271,548 $2.0M Reduce -0.3%
NNY Nuveen New York Muni Val 1.26% 213,727 $1.8M No change
SONY Sony Group Corp. - SP ADR 1.21% 68,500 $1.8M No change
BRK.B Berkshire Hathaway Inc. Class B 1.16% 3,350 $1.7M Reduce -0.7%
VET Vermilion Energy Inc. 1.14% 197,825 $1.6M Add +10.2%
ADP Automatic Data Processing 1.12% 6,300 $1.6M No change
MESO Mesoblast Ltd.- Spon ADR 1.09% 87,575 $1.6M Reduce -0.1%
BPOP Popular Inc. 1.02% 11,850 $1.5M Reduce -5.2%
CSCO Cisco Systems Inc. 0.97% 18,350 $1.4M No change
CURI Curiositystream Inc. 0.91% 347,300 $1.3M Reduce -0.4%
TRGP Targa Resources Corp. 0.89% 7,028 $1.3M Reduce -21.1%
SYF Synchrony Financial 0.89% 15,500 $1.3M Reduce -14.8%
ACLS Axcelis Technologies Inc. 0.88% 15,895 $1.3M Reduce -5.9%
VZ Verizon Communications Inc. 0.87% 31,135 $1.3M Reduce -6.3%
ET Energy Transfer LP 0.85% 74,489 $1.2M Reduce -8.7%
ABNB Airbnb Inc. Class A 0.84% 8,950 $1.2M Add +1.1%
ABBV Abbvie Inc. 0.82% 5,230 $1.2M Reduce -0.8%
DV Doubleverify Holdings Inc. 0.81% 102,910 $1.2M New
SPY SS SPDR S&P 500 ETF Trust-US 0.81% 1,720 $1.2M Reduce -4.2%
WMB Williams Cos Inc. 0.79% 19,130 $1.1M Reduce -0.8%
QQQ Invesco QQQ Trust Series 1 0.79% 1,870 $1.1M Reduce -3.9%
DAIO Data I/O Corp. 0.78% 356,850 $1.1M Add +1.2%
META Meta Platforms Inc. Class A 0.77% 1,700 $1.1M No change
FNF Fidelity National Financial 0.77% 20,321 $1.1M Reduce -14.7%
HESM Hess Midstream LP Class A 0.72% 30,055 $1.0M Add +30.5%
NVDA Nvidia Corp. 0.67% 5,223 $974K No change
USAC USA Compression Partners LP 0.65% 41,038 $944K Add +5.7%
FBP First Bancorp Puerto Rico 0.64% 44,900 $931K Reduce -14.6%
COHU Cohu Inc. 0.61% 38,300 $891K Reduce -22.6%
ASUR Asure Software Inc. 0.58% 89,235 $841K Reduce -1.6%
OKE Oneok Inc. 0.57% 11,310 $831K Reduce -0.9%
MRVL Marvell Technology Inc. 0.57% 9,730 $827K Reduce -0.1%
NPKI NPK International Inc. 0.55% 67,250 $802K Reduce -1.9%
NVS Novartis AG-Sponsored ADR 0.53% 5,610 $773K No change
PAR Par Technology Corp. 0.50% 19,815 $719K Add +55.4%
SGOL Abrdn Physical Gold Shares 0.49% 17,155 $705K Reduce -4.4%
EMR Emerson Electric Co. 0.49% 5,300 $703K Reduce -1.9%
SHEL Shell PLC-ADR 0.48% 9,400 $691K No change
WES Western Midstream Partners L 0.43% 15,900 $628K Add +8.9%
REGN Regeneron Pharmaceuticals 0.42% 797 $615K No change
BLFS Biolife Solutions Inc. 0.38% 22,955 $555K Reduce -0.9%
CYRX Cryoport Inc. 0.35% 52,835 $507K Add +0.1%
CVE Cenovus Energy Inc. 0.35% 29,880 $506K No change
MGNI Magnite Inc. 0.35% 31,115 $505K Add +9.5%
RRC Range Resources Corp. 0.35% 14,240 $502K Reduce -0.7%
PIM Franklin Master Interm IT-Ui filed as PUTNAM MASTER INTER INCOME T 0.34% 147,063 $491K No change
IBM Intl Business Machines Corp. filed as INTERNATIONAL BUSINESS MACHS 0.33% 1,627 $482K Reduce -1.5%
AAPL Apple Inc. 0.29% 1,529 $416K Reduce -11.6%
TTI Tetra Technologies Inc. 0.28% 43,975 $412K Reduce -1.4%
LINC Lincoln Educational Services 0.28% 17,026 $411K Add +36.2%
GPN Global Payments Inc. 0.27% 5,115 $396K No change
EPD Enterprise Products Partners 0.25% 11,427 $366K No change
DMLP Dorchester Minerals LP 0.25% 16,225 $363K Add +15.7%
BMY Bristol-Myers Squibb Co. 0.23% 6,250 $337K New
OSS One Stop Systems Inc. 0.23% 46,740 $336K Reduce -1.4%
BLZE Backblaze Inc. Class A 0.23% 71,350 $332K Add +37.1%
POWI Power Integrations Inc. 0.23% 9,200 $327K No change
KLIC Kulicke & Soffa Industries 0.22% 7,100 $323K Reduce -17.4%
GBDC Golub Capital BDC Inc. 0.22% 23,680 $321K Reduce -5.1%
RSP Invesco S&P 500 Equal Weight 0.22% 1,670 $320K No change
BBSI Barrett Business SVCS Inc. 0.22% 8,800 $319K Reduce -22.1%
HTGC Hercules Capital Inc. 0.19% 14,767 $278K Reduce -0.1%
AQST Aquestive Therapeutics Inc. 0.19% 42,160 $272K Reduce -3.3%
KOPN Kopin Corp. 0.19% 114,975 $269K Reduce -16.1%
FAF First American Financial 0.18% 4,300 $264K Reduce -2.3%
WBS Webster Financial Corp. 0.18% 4,180 $263K No change
SPYM Ste STR SPDR PT S&P 500 ETF 0.18% 3,200 $257K Reduce -8.6%
NKE Nike Inc. Class B 0.17% 3,885 $248K Reduce -1.3%
JEPI JPMorgan Equity Premium Inco 0.17% 4,225 $242K Reduce -2.3%
UTG Reaves Utility Income Fund 0.15% 6,025 $220K Reduce -0.8%
AFL Aflac Inc. 0.15% 1,950 $215K No change
FIS Fidelity National Info Serv 0.15% 3,224 $214K Reduce -21.8%
JPM JPMorgan Chase & Co. 0.15% 660 $213K No change
CVX Chevron Corp. 0.14% 1,377 $210K No change
TFPM Triple Flag Precious Met 0.14% 6,089 $202K New
VKQ Invesco Municipal Trust 0.13% 20,000 $193K No change
NUV Nuveen Municipal Value 0.13% 20,000 $181K No change
PAYS Paysign Inc. 0.11% 30,825 $159K New
ONDS Ondas Inc. filed as ONDAS HLDGS INC 0.07% 10,005 $98K Reduce -27.8%
IOVA Iovance Biotherapeutics Inc. 0.06% 33,945 $93K New
XGN Exagen Inc. 0.06% 13,430 $82K Reduce -32.5%
BTQ BTQ Technologies Corp. 0.04% 10,570 $54K Reduce -28.3%
MIN Aberdeen Intermediate Inc. FD 0.03% 18,750 $49K Reduce -27.0%

Portfolio Sells Q3 2025 → Q4 2025

MSFT Microsoft Corp. Reduce -6.4% 7.59% −1.20
AEHR Aehr Test Systems Reduce -1.2% 1.60% −0.84
CURI Curiositystream Inc. Reduce -0.4% 0.91% −0.38
ACLS Axcelis Technologies Inc. Reduce -5.9% 0.88% −0.27
FNF Fidelity National Financial Reduce -14.7% 0.77% −0.24
BLDR Builders Firstsource Inc. Sold out 0.00% −0.23
IREN Iren Ltd. Sold out 0.00% −0.20
INVE Inve Technologies Inc. Sold out 0.00% −0.18
FBP First Bancorp Puerto Rico Reduce -14.6% 0.64% −0.17
TRGP Targa Resources Corp. Reduce -21.1% 0.89% −0.15
JPC Nuveen Prefered & Income Opp Sold out 0.00% −0.15
VZ Verizon Communications Inc. Reduce -6.3% 0.87% −0.15
WLY Wiley (john) & Sons Class A Sold out 0.00% −0.14
PBI Pitney Bowes Inc. Sold out 0.00% −0.14
ET Energy Transfer LP Reduce -8.7% 0.85% −0.13
BBSI Barrett Business SVCS Inc. Reduce -22.1% 0.22% −0.13
OESX Orion Energy Systems Inc. Sold out 0.00% −0.10
XGN Exagen Inc. Reduce -32.5% 0.06% −0.10
BPOP Popular Inc. Reduce -5.2% 1.02% −0.09
COHU Cohu Inc. Reduce -22.6% 0.61% −0.09
ASPN Aspen Aerogels Inc. Sold out 0.00% −0.07
UAMY United States Antimony Corp. Sold out 0.00% −0.06
WMB Williams Cos Inc. Reduce -0.8% 0.79% −0.06
KOPN Kopin Corp. Reduce -16.1% 0.19% −0.05
FIS Fidelity National Info Serv Reduce -21.8% 0.15% −0.04
BTQ BTQ Technologies Corp. Reduce -28.3% 0.04% −0.03
RRC Range Resources Corp. Reduce -0.7% 0.35% −0.03
BLFS Biolife Solutions Inc. Reduce -0.9% 0.38% −0.03
ABBV Abbvie Inc. Reduce -0.8% 0.82% −0.03
SPY SS SPDR S&P 500 ETF Trust-US Reduce -4.2% 0.81% −0.03
BRK.B Berkshire Hathaway Inc. Class B Reduce -0.7% 1.16% −0.02
QQQ Invesco QQQ Trust Series 1 Reduce -3.9% 0.79% −0.02
KLIC Kulicke & Soffa Industries Reduce -17.4% 0.22% −0.02
NKE Nike Inc. Class B Reduce -1.3% 0.17% −0.02
AAPL Apple Inc. Reduce -11.6% 0.29% −0.02
GBDC Golub Capital BDC Inc. Reduce -5.1% 0.22% −0.02
UTG Reaves Utility Income Fund Reduce -0.8% 0.15% −0.02
DEFT Defi Technologies Inc. Sold out 0.00% −0.02
FAF First American Financial Reduce -2.3% 0.18% −0.02
SPYM Ste STR SPDR PT S&P 500 ETF Reduce -8.6% 0.18% −0.01
MIN Aberdeen Intermediate Inc. FD Reduce -27.0% 0.03% −0.01
SYF Synchrony Financial Reduce -14.8% 0.89% −0.01
CISO Ciso Global Inc. Sold out 0.00% −0.01
EMR Emerson Electric Co. Reduce -1.9% 0.49% −0.01
OKE Oneok Inc. Reduce -0.9% 0.57% −0.01
ONDS Ondas Inc. Reduce -27.8% 0.07% −0.01
JEPI JPMorgan Equity Premium Inco Reduce -2.3% 0.17% −0.01
OCEAN POWER TECHNOLOGIES INC Sold out 0.00% −0.01
HTGC Hercules Capital Inc. Reduce -0.1% 0.19% −0.00
MRVL Marvell Technology Inc. Reduce -0.1% 0.57% −0.00

Portfolio Buys Q3 2025 → Q4 2025

DV Doubleverify Holdings Inc. New 0.81% +0.81
ELVA Electrovaya Inc. Add +13.6% 1.91% +0.64
AMZN Amazon.com Inc. Add +0.0% 8.24% +0.31
BMY Bristol-Myers Squibb Co. New 0.23% +0.23
HESM Hess Midstream LP Class A Add +30.5% 0.72% +0.16
VET Vermilion Energy Inc. Add +10.2% 1.14% +0.16
PAR Par Technology Corp. Add +55.4% 0.50% +0.14
TFPM Triple Flag Precious Met New 0.14% +0.14
PAYS Paysign Inc. New 0.11% +0.11
ABNB Airbnb Inc. Class A Add +1.1% 0.84% +0.09
LINC Lincoln Educational Services Add +36.2% 0.28% +0.08
IOVA Iovance Biotherapeutics Inc. New 0.06% +0.06
WES Western Midstream Partners L Add +8.9% 0.43% +0.03
CYRX Cryoport Inc. Add +0.1% 0.35% +0.00
USAC USA Compression Partners LP Add +5.7% 0.65% +0.00
DMLP Dorchester Minerals LP Add +15.7% 0.25% −0.00
DAIO Data I/O Corp. Add +1.2% 0.78% −0.04
MGNI Magnite Inc. Add +9.5% 0.35% −0.08
BLZE Backblaze Inc. Class A Add +37.1% 0.23% −0.11
ALKT Alkami Technology Inc. Add +2.9% 2.03% −0.12
TRI Thomson Reuters Corp. Add +0.4% 2.27% −0.42
NVO Novo-Nordisk A/S-Spons ADR Add +1.5% 11.10% −0.97

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