Penbrook Management LLC

In its 13F for Q2 2026 (holdings as of June 30, 2026, filed July 23, 2026), Penbrook Management LLC reported 101 stock positions worth $156.8 million. Its top holding was Novo-Nordisk A/S-Spons ADR (NVO) at 9.7% of the portfolio, followed by Amazon.com (AMZN, 7.9%) and Alphabet Class A (GOOGL, 5.3%). Compared with Q1 2026, it opened 11 new positions, sold out of 3, added to 18 and reduced 22. The biggest buy was a new position in Allot (ALLT) and the biggest sale Aehr Test Systems (AEHR, shares −93%).

Most Recent 13F
Q2 2026
Location
NEW YORK, NY
CIK
0001381055
Portfolio Value
$156.8M (Q2 2026)
SEC Filing
0001381055-26-000003 ↗ filed Jul 23, 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 Q4 2025 Q1 2026: $132.1M Q1 2026 Q2 2026: $156.8M $156.8M Q2 2026

Holdings 101 stocks · $156.8M
NVO Novo-Nordisk A/S-Spons ADR 9.67% 316,200 $15.2M No change
AMZN Amazon.com Inc. 7.87% 51,760 $12.3M No change
GOOGL Alphabet Inc. Class A 5.28% 23,170 $8.3M No change
MSFT Microsoft Corp. 5.22% 21,920 $8.2M Reduce -1.5%
GOOG Alphabet Inc. Class C 5.08% 22,554 $8.0M No change
MCO Moody's Corp. 3.93% 13,600 $6.2M No change
ELVA Electrovaya Inc. 2.19% 326,231 $3.4M Add +10.4%
CYRX Cryoport Inc. 2.03% 202,675 $3.2M Add +9.1%
VMD Viemed Healthcare Inc. 2.02% 277,178 $3.2M Add +1.8%
MRVL Marvell Technology Inc. 1.85% 9,730 $2.9M No change
PLAB Photronics Inc. 1.85% 89,055 $2.9M Reduce -7.9%
SA Seabridge Gold Inc. 1.82% 110,915 $2.9M Add +15.6%
EXTR Extreme Networks Inc. 1.73% 84,025 $2.7M Add +0.6%
PL Planet Labs PBC 1.73% 81,817 $2.7M Reduce -22.7%
PRTA Prothena Corp. PLC 1.70% 271,720 $2.7M No change
ALKT Alkami Technology Inc. 1.62% 140,585 $2.5M Add +10.1%
ALLT Allot Ltd. 1.55% 275,295 $2.4M New
CSCO Cisco Systems Inc. 1.37% 18,350 $2.2M No change
BX Blackstone Inc. 1.36% 18,150 $2.1M No change
MGNI Magnite Inc. 1.36% 112,040 $2.1M Reduce -0.1%
ACLS Axcelis Technologies Inc. 1.32% 10,895 $2.1M Reduce -9.9%
CURI Curiositystream Inc. 1.30% 764,800 $2.0M Add +13.3%
TRI Thomson Reuters Corp. 1.27% 24,381 $2.0M No change
NNY Nuveen New York Muni Val 1.19% 213,727 $1.9M No change
VET Vermilion Energy Inc. 1.18% 197,825 $1.9M No change
TRGP Targa Resources Corp. 1.18% 6,892 $1.8M No change
BRK.B Berkshire Hathaway Inc. Class B 1.05% 3,290 $1.6M Reduce -0.3%
BTE Baytex Energy Corp. 1.02% 399,350 $1.6M New
ET Energy Transfer LP 0.91% 74,489 $1.4M No change
WMB Williams Cos Inc. 0.91% 19,130 $1.4M No change
ADP Automatic Data Processing 0.90% 6,300 $1.4M No change
DAIO Data I/O Corp. 0.89% 355,850 $1.4M Reduce -0.3%
SONY Sony Group Corp. - SP ADR 0.88% 68,500 $1.4M No change
ABBV Abbvie Inc. 0.83% 5,152 $1.3M Reduce -0.3%
VZ Verizon Communications Inc. 0.82% 30,424 $1.3M Add +1.8%
ABNB Airbnb Inc. Class A 0.82% 8,950 $1.3M No change
SPY SS SPDR S&P 500 ETF Trust-US 0.76% 1,605 $1.2M No change
MESO Mesoblast Ltd.- Spon ADR 0.75% 87,075 $1.2M No change
HESM Hess Midstream LP Class A 0.72% 30,055 $1.1M No change
BLFS Biolife Solutions Inc. 0.72% 39,705 $1.1M Add +71.5%
DV Doubleverify Holdings Inc. 0.71% 102,660 $1.1M Reduce -0.2%
USAC USA Compression Partners LP 0.69% 41,038 $1.1M No change
NPKI NPK International Inc. 0.69% 67,825 $1.1M Add +0.9%
NVDA Nvidia Corp. 0.68% 5,323 $1.1M Add +1.9%
OKE Oneok Inc. 0.63% 11,310 $983K No change
META Meta Platforms Inc. Class A 0.61% 1,700 $958K No change
KLIC Kulicke & Soffa Industries 0.61% 7,100 $950K No change
PAR Par Technology Corp. 0.60% 53,760 $936K Add +50.3%
BPOP Popular Inc. 0.56% 5,300 $870K Reduce -3.6%
NVS Novartis AG-Sponsored ADR 0.55% 5,540 $868K No change
BLZE Backblaze Inc. Class A 0.54% 53,700 $852K Reduce -25.6%
POWI Power Integrations Inc. 0.49% 9,200 $771K No change
EMR Emerson Electric Co. 0.48% 5,300 $759K No change
CVE Cenovus Energy Inc. 0.47% 29,880 $741K No change
SHEL Shell PLC-ADR 0.46% 9,400 $729K No change
OSS One Stop Systems Inc. 0.45% 38,875 $707K Reduce -16.8%
ASUR Asure Software Inc. 0.45% 88,135 $700K Reduce -1.7%
WES Western Midstream Partners L 0.44% 15,900 $696K No change
QQQ Invesco QQQ Trust Series 1 0.43% 925 $681K No change
SGOL Abrdn Physical Gold Shares 0.42% 17,080 $653K Reduce -0.4%
LINC Lincoln Educational Services 0.40% 12,715 $634K Reduce -0.2%
FBP First Bancorp Puerto Rico 0.38% 22,600 $589K Reduce -3.8%
RRC Range Resources Corp. 0.34% 14,240 $530K No change
AEHR Aehr Test Systems 0.32% 5,200 $500K Reduce -93.5%
REGN Regeneron Pharmaceuticals 0.31% 785 $489K No change
TLT iShares 20+ Year Treasury BD 0.30% 5,510 $476K New
PIM Franklin Master Interm IT-Ui filed as PUTNAM MASTER INTER INCOME T 0.30% 147,063 $475K No change
PAYS Paysign Inc. 0.30% 57,310 $469K Add +2.7%
HTGC Hercules Capital Inc. 0.30% 29,387 $463K Add +95.1%
AAPL Apple Inc. 0.28% 1,529 $442K No change
EPD Enterprise Products Partners 0.27% 11,427 $420K No change
DMLP Dorchester Minerals LP 0.26% 16,225 $410K No change
FNF Fidelity National Financial 0.26% 8,668 $409K Reduce -5.5%
KOPN Kopin Corp. 0.25% 88,275 $395K Reduce -22.9%
BMY Bristol-Myers Squibb Co. 0.24% 6,615 $381K Add +5.8%
AMPL Amplitude Inc. Class A 0.24% 48,705 $373K New
RITM Rithm Capital Corp. 0.23% 39,200 $368K New
IBM Intl Business Machines Corp. filed as INTERNATIONAL BUSINESS MACHS 0.23% 1,283 $361K No change
RSP Invesco S&P 500 Equal Weight 0.23% 1,670 $355K No change
TTI Tetra Technologies Inc. 0.19% 26,260 $298K Reduce -0.6%
TER Teradyne Inc. 0.19% 600 $290K New
SPYM Ste STR SPDR PT S&P 500 ETF 0.17% 3,075 $270K Reduce -3.3%
IOVA Iovance Biotherapeutics Inc. 0.16% 61,945 $258K Add +45.9%
UTG Reaves Utility Income Fund 0.16% 6,125 $249K No change
WLY Wiley (john) & Sons Class A 0.15% 5,000 $243K New
JEPI JPMorgan Equity Premium Inco 0.15% 4,225 $239K No change
GBDC Golub Capital BDC Inc. 0.15% 18,060 $233K Add +23.0%
CVX Chevron Corp. 0.15% 1,377 $228K No change
AM Antero Midstream Corp. 0.14% 9,900 $225K No change
MRK Merck & Co. Inc. 0.14% 1,700 $218K No change
JPM JPMorgan Chase & Co. 0.14% 660 $216K New
COP Conocophillips 0.13% 2,025 $211K No change
FAF First American Financial 0.13% 3,000 $206K New
VKQ Invesco Municipal Trust 0.13% 20,000 $201K No change
SKYH SKY Harbour Group Corp. 0.12% 19,530 $192K New
BNED Barnes & Noble Education Inc. 0.12% 15,000 $188K New
NUV Nuveen Municipal Value 0.12% 20,000 $184K No change
AQST Aquestive Therapeutics Inc. 0.11% 43,300 $180K Add +69.4%
DX Dynex Capital Inc. 0.08% 10,050 $132K No change
ONDS Ondas Inc. 0.05% 10,005 $82K No change

Show all 101 holdings

Portfolio Sells Q1 2026 → Q2 2026
AEHR Aehr Test Systems Reduce -93.5% 0.32% −1.91
PLAB Photronics Inc. Reduce -7.9% 1.85% −1.11
MSFT Microsoft Corp. Reduce -1.5% 5.22% −1.02
PL Planet Labs PBC Reduce -22.7% 1.73% −0.51
XOM Exxon Mobil Corp. Sold out 0.00% −0.16
SGOL Abrdn Physical Gold Shares Reduce -0.4% 0.42% −0.16
NKE Nike Inc. Class B Sold out 0.00% −0.16
BRK.B Berkshire Hathaway Inc. Class B Reduce -0.3% 1.05% −0.15
ASUR Asure Software Inc. Reduce -1.7% 0.45% −0.14
FNF Fidelity National Financial Reduce -5.5% 0.26% −0.06
DV Doubleverify Holdings Inc. Reduce -0.2% 0.71% −0.03
XGN Exagen Inc. Sold out 0.00% −0.03
ABBV Abbvie Inc. Reduce -0.3% 0.83% −0.02
SPYM Ste STR SPDR PT S&P 500 ETF Reduce -3.3% 0.17% −0.01
PROF Profound Medical Corp. Reduce -1.8% 0.05% −0.01
FBP First Bancorp Puerto Rico Reduce -3.8% 0.38% −0.00
BPOP Popular Inc. Reduce -3.6% 0.56% −0.00
LINC Lincoln Educational Services Reduce -0.2% 0.40% +0.01
TTI Tetra Technologies Inc. Reduce -0.6% 0.19% +0.02
KOPN Kopin Corp. Reduce -22.9% 0.25% +0.06
OSS One Stop Systems Inc. Reduce -16.8% 0.45% +0.18
DAIO Data I/O Corp. Reduce -0.3% 0.89% +0.21
MGNI Magnite Inc. Reduce -0.1% 1.36% +0.35
BLZE Backblaze Inc. Class A Reduce -25.6% 0.54% +0.35
ACLS Axcelis Technologies Inc. Reduce -9.9% 1.32% +0.46

Portfolio Buys Q1 2026 → Q2 2026
ALLT Allot Ltd. New 1.55% +1.55
BTE Baytex Energy Corp. New 1.02% +1.02
CYRX Cryoport Inc. Add +9.1% 2.03% +0.86
EXTR Extreme Networks Inc. Add +0.6% 1.73% +0.78
ELVA Electrovaya Inc. Add +10.4% 2.19% +0.45
BLFS Biolife Solutions Inc. Add +71.5% 0.72% +0.38
TLT iShares 20+ Year Treasury BD New 0.30% +0.30
AMPL Amplitude Inc. Class A New 0.24% +0.24
PAR Par Technology Corp. Add +50.3% 0.60% +0.24
RITM Rithm Capital Corp. New 0.23% +0.23
TER Teradyne Inc. New 0.19% +0.19
WLY Wiley (john) & Sons Class A New 0.15% +0.15
JPM JPMorgan Chase & Co. New 0.14% +0.14
FAF First American Financial New 0.13% +0.13
HTGC Hercules Capital Inc. Add +95.1% 0.30% +0.13
SKYH SKY Harbour Group Corp. New 0.12% +0.12
BNED Barnes & Noble Education Inc. New 0.12% +0.12
VMD Viemed Healthcare Inc. Add +1.8% 2.02% +0.12
ALKT Alkami Technology Inc. Add +10.1% 1.62% +0.11
IOVA Iovance Biotherapeutics Inc. Add +45.9% 0.16% +0.05
PAYS Paysign Inc. Add +2.7% 0.30% +0.05
AQST Aquestive Therapeutics Inc. Add +69.4% 0.11% +0.03
GBDC Golub Capital BDC Inc. Add +23.0% 0.15% +0.01
NVDA Nvidia Corp. Add +1.9% 0.68% −0.01
BMY Bristol-Myers Squibb Co. Add +5.8% 0.24% −0.04
NPKI NPK International Inc. Add +0.9% 0.69% −0.05
CURI Curiositystream Inc. Add +13.3% 1.30% −0.22
SA Seabridge Gold Inc. Add +15.6% 1.82% −0.24
VZ Verizon Communications Inc. Add +1.8% 0.82% −0.31

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