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Penbrook Management LLC
Period ended Sep 30, 2026 · Latest filing Oct 16, 2026
These quarterly holdings are delayed and may not include all assets or short positions.
Values are from the reporting date, not current prices or purchase costs.
The same security may appear in multiple rows.
Source: SEC
Reported portfolio value
Quarter-end reported holdings; not current value or investment performance.
View reported values
- Sep 30, 2026: $169,493,759
More quarters will appear as history becomes available.
Top holdings
Top 10 at Sep 30, 2026. Matching entries are combined; security classes and options remain separate. Shares exclude principal amounts; option shares reflect the reported underlying amount.
View top holdings values
- TARGA RES CORP · Stock · 87612G101 · shares: $17,886,417
- AMAZON COM INC · Stock · 023135106 · shares: $12,896,004
- NOVO-NORDISK A S ADR · ADR · 670100205 · shares: $11,808,965
- MICROSOFT CORP · Stock · 594918104 · shares: $11,140,188
- ALPHABET INC CAP STK CL A · Stock · 02079K305 · shares: $7,972,333
- ALPHABET INC CAP STK CL C · Stock · 02079K107 · shares: $7,650,975
- MOODYS CORP · Stock · 615369105 · shares: $6,176,168
- CRYOPORT INC · Stock · 229050307 · shares: $3,498,879
- ALLOT LTD SHS · Stock · M0854Q105 · shares: $3,185,213
- SEABRIDGE GOLD INC · Stock · 811927102 · shares: $3,138,371
Reported holdings
102 reported entries| Issuer | Class | CUSIP | Type | Shares / principal | Reported value (USD) |
|---|---|---|---|---|---|
| TARGA RES CORP | Stock | 87612G101 | — | 6,617 shares | $17,886,417 |
| AMAZON COM INC | Stock | 023135106 | — | 51,760 shares | $12,896,004 |
| NOVO-NORDISK A S ADR | ADR | 670100205 | — | 311,500 shares | $11,808,965 |
| MICROSOFT CORP | Stock | 594918104 | — | 21,720 shares | $11,140,188 |
| ALPHABET INC CAP STK CL A | Stock | 02079K305 | — | 23,170 shares | $7,972,333 |
| ALPHABET INC CAP STK CL C | Stock | 02079K107 | — | 22,454 shares | $7,650,975 |
| MOODYS CORP | Stock | 615369105 | — | 13,600 shares | $6,176,168 |
| CRYOPORT INC | Stock | 229050307 | — | 201,085 shares | $3,498,879 |
| ALLOT LTD SHS | Stock | M0854Q105 | — | 377,395 shares | $3,185,213 |
| SEABRIDGE GOLD INC | Stock | 811927102 | — | 110,740 shares | $3,138,371 |
| PHOTRONICS INC | Stock | 719405102 | — | 88,855 shares | $2,734,956 |
| MAGNITE INC | Stock | 55955D100 | — | 105,690 shares | $2,669,729 |
| MARVELL TECHNOLOGY INC | Stock | 573874104 | — | 9,730 shares | $2,570,763 |
| VIEMED HEALTHCARE INC | Stock | 92663R105 | — | 275,948 shares | $2,511,126 |
| ELECTROVAYA INC | Stock | 28617B606 | — | 379,606 shares | $2,486,836 |
| THOMSON REUTERS CORP | Stock | 884903881 | — | 24,381 shares | $2,378,250 |
| PROTHENA CORP PLC SHS | Stock | G72800108 | — | 271,720 shares | $2,277,013 |
| VERMILION ENERGY INC | Stock | 923725105 | — | 197,825 shares | $2,256,114 |
| BLACKSTONE INC | Stock | 09260D107 | — | 18,150 shares | $2,034,433 |
| CISCO SYS INC | Stock | 17275R102 | — | 18,350 shares | $1,975,010 |
| ALKAMI TECHNOLOGY INC | Stock | 01644J108 | — | 138,010 shares | $1,889,356 |
| SKY HARBOUR GROUP CORPORATION | Stock | 83085C107 | — | 197,200 shares | $1,867,484 |
| BAYTEX ENERGY CORP | Stock | 07317Q105 | — | 399,350 shares | $1,809,055 |
| EXTREME NETWORKS INC | Stock | 30226D106 | — | 84,025 shares | $1,802,336 |
| NUVEEN N Y MUN VALUE FD | CEF | 67062M105 | — | 213,727 shares | $1,662,796 |
| SONY GROUP CORP SPONSORED ADR | ADR | 835699307 | — | 69,500 shares | $1,635,335 |
| AUTOMATIC DATA PROCESSING INC | Stock | 053015103 | — | 6,300 shares | $1,625,778 |
| BERKSHIRE HATHAWAY INC DEL CL B NEW | Stock | 084670702 | — | 3,240 shares | $1,613,358 |
| ENERGY TRANSFER L P COM UT LTD PTN | Stock | 29273V100 | — | 74,293 shares | $1,468,772 |
| BIOLIFE SOLUTIONS INC | Stock | 09062W204 | — | 36,895 shares | $1,433,370 |
| AIRBNB INC | Stock | 009066101 | — | 8,750 shares | $1,405,687 |
| VERIZON COMMUNICATIONS INC | Stock | 92343V104 | — | 30,424 shares | $1,395,548 |
| AXCELIS TECHNOLOGIES INC | Stock | 054540208 | — | 10,495 shares | $1,376,734 |
| ABBVIE INC | Stock | 00287Y109 | — | 5,252 shares | $1,373,870 |
| PLANET LABS PBC | Stock | 72703X106 | — | 81,417 shares | $1,334,424 |
| CENOVUS ENERGY INC | Stock | 15135U109 | — | 42,700 shares | $1,327,116 |
| WILLIAMS COS INC | Stock | 969457100 | — | 19,080 shares | $1,296,867 |
| MESOBLAST LTD SPONS ADR | ADR | 590717401 | — | 87,075 shares | $1,275,648 |
| META PLATFORMS INC CL A | Stock | 30303M102 | — | 1,700 shares | $1,232,806 |
| STATE STREET SPDR S&P 500 ETF | ETF | 78462F103 | — | 1,605 shares | $1,224,021 |
| NVIDIA CORPORATION | Stock | 67066G104 | — | 5,278 shares | $1,205,389 |
| CURIOSITYSTREAM INC CL A | Stock | 23130Q107 | — | 388,550 shares | $1,130,680 |
| HESS MIDSTREAM LP CL A SHS | Stock | 428103105 | — | 30,005 shares | $1,121,286 |
| DATA I O CORP | Stock | 237690102 | — | 355,850 shares | $1,042,640 |
| USA COMPRESSION PARTNERS LP | Stock | 90290N109 | — | 41,038 shares | $1,020,615 |
| ONEOK INC NEW | Stock | 30609A109 | — | 11,310 shares | $964,403 |
| SHELL PLC SPON ADS | ADR | 780259305 | — | 9,400 shares | $893,470 |
| PAR TECHNOLOGY CORP | Stock | 698884103 | — | 63,700 shares | $876,512 |
| POPULAR INC | Stock | 733174700 | — | 5,300 shares | $823,885 |
| EMERSON ELEC CO | Stock | 291011104 | — | 5,300 shares | $822,030 |
| NOVARTIS AG SPONSORED ADR | ADR | 66987V109 | — | 5,540 shares | $789,837 |
| NPK INTERNATIONAL INC | Stock | 651718504 | — | 67,325 shares | $768,851 |
| BACKBLAZE INC | Stock | 05637B105 | — | 51,900 shares | $726,081 |
| WESTERN MIDSTREAM PARTNERS LP | Stock | 958669103 | — | 15,900 shares | $705,483 |
| INVESCO QQQ TRUST SERIES I | ETF | 46090E103 | — | 925 shares | $684,287 |
| ABRDN PHYSICAL GOLD SHARES ETF | ETF | 00326A104 | — | 17,080 shares | $675,684 |
| KULICKE & SOFFA INDS INC | Stock | 501242101 | — | 7,100 shares | $669,175 |
| AMPLITUDE INC | Stock | 03213A104 | — | 47,955 shares | $664,176 |
| ASURE SOFTWARE INC | Stock | 04649U102 | — | 87,705 shares | $663,926 |
| IOVANCE BIOTHERAPEUTICS INC | Stock | 462260100 | — | 41,195 shares | $610,509 |
| FIRST BANCORP CORPORATION | Stock | 318672706 | — | 22,600 shares | $595,284 |
| REGENERON PHARMACEUTICALS | Stock | 75886F107 | — | 785 shares | $595,241 |
| PAYSIGN INC | Stock | 70451A104 | — | 39,420 shares | $531,381 |
| RANGE RES CORP | Stock | 75281A109 | — | 14,090 shares | $521,893 |
| AEHR TEST SYS | Stock | 00760J108 | — | 5,200 shares | $518,024 |
| APPLE INC | Stock | 037833100 | — | 1,529 shares | $509,187 |
| HERCULES CAPITAL INC | CEF | 427096508 | — | 29,786 shares | $500,704 |
| POWER INTEGRATIONS INC | Stock | 739276103 | — | 9,200 shares | $476,560 |
| FRANKLIN MASTER INTER INCOME SH BEN INT | CEF | 746909100 | — | 152,063 shares | $459,230 |
| DORCHESTER MINERALS L P COM | Stock | 25820R105 | — | 16,225 shares | $454,949 |
| ISHARES 20 YEAR TREASURY BOND ETF | ETF | 464287432 | — | 5,385 shares | $418,845 |
| BRISTOL-MYERS SQUIBB CO | Stock | 110122108 | — | 6,615 shares | $412,776 |
| TETRA TECHNOLOGIES INC DEL | Stock | 88162F105 | — | 69,760 shares | $409,491 |
| ENTERPRISE PRODS PARTNERS L P | Stock | 293792107 | — | 11,427 shares | $406,915 |
| KOPIN CORP | Stock | 500600101 | — | 82,975 shares | $381,685 |
| INVESCO S&P 500 EQUAL WEIGHT ETF | ETF | 46137V357 | — | 1,670 shares | $347,393 |
| RITHM CAPITAL CORP | REIT | 64828T201 | — | 38,337 shares | $342,357 |
| FIDELITY NATL FINL INC | Stock | 31620R303 | — | 8,668 shares | $335,018 |
| ONE STOP SYS INC | Stock | 68247W109 | — | 38,200 shares | $333,486 |
| INTERNATIONAL BUSINESS MACHS | Stock | 459200101 | — | 1,483 shares | $326,156 |
| LINCOLN EDL SVCS CORP | Stock | 533535100 | — | 14,115 shares | $308,695 |
| CHEVRON CORPORATION | Stock | 166764100 | — | 1,377 shares | $281,197 |
| LOCKHEED MARTIN CORP | Stock | 539830109 | — | 550 shares | $280,087 |
| STATE STREET SPDR PORTFOLIO S&P 500 ETF | ETF | 78464A854 | — | 3,075 shares | $276,012 |
| CONOCOPHILLIPS | Stock | 20825C104 | — | 2,025 shares | $253,428 |
| MERCK & CO INC | Stock | 58933Y105 | — | 1,700 shares | $247,027 |
| TERADYNE INC | Stock | 880770102 | — | 600 shares | $240,546 |
| WILEY JOHN & SONS INC CL A | Stock | 968223206 | — | 5,000 shares | $238,800 |
| JPMORGAN EQUITY PREMIUM INCOME ETF | ETF | 46641Q332 | — | 4,225 shares | $237,529 |
| GOLUB CAP BDC INC | CEF | 38173M102 | — | 17,930 shares | $226,455 |
| JPMORGAN CHASE & CO | Stock | 46625H100 | — | 660 shares | $218,347 |
| REAVES UTIL INCOME FD | CEF | 756158101 | — | 6,125 shares | $210,393 |
| EXXONMOBIL HOLDINGS CORP | Stock | 30233Q108 | — | 1,280 shares | $208,320 |
| NEWMONT CORP | Stock | 651639106 | — | 1,780 shares | $205,305 |
| AQUESTIVE THERAPEUTICS INC | Stock | 03843E104 | — | 41,350 shares | $191,450 |
| BARNES & NOBLE ED INC | Stock | 06777U200 | — | 15,000 shares | $173,850 |
| INVESCO MUNICIPAL TRUST | CEF | 46131J103 | — | 20,000 shares | $169,600 |
| NUVEEN MUN VALUE FD INC | CEF | 670928100 | — | 20,000 shares | $165,800 |
| DYNEX CAP INC | REIT | 26817Q886 | — | 10,050 shares | $111,957 |
| EXAGEN INC | Stock | 30068X103 | — | 11,300 shares | $91,869 |