Investor
Penbrook Management LLC
CIK 0001381055 · filed 2026-04-21 · SEC filing
13F book
$132.1M
Positions
93
8 new · 12 sold
Largest name
8.8%
Novo-Nordisk A S
Est. mark
−$8.25M
Price effect on 85 names still held. Flow −$4.67M.
| Name | Ticker | Shares | Value | Weight | Est. mark | Change |
|---|---|---|---|---|---|---|
| Novo-Nordisk A S | — | 316.2K | $11.6M | 8.8% | −$4.47M | Cut−$4.48M |
| Amazon Com Inc | AMZN | 51.8K | $10.8M | 8.2% | −$1.17M | Held |
| Microsoft Corp | MSFT | 22.2K | $8.23M | 6.2% | −$2.52M | Cut−$2.77M |
| Alphabet Inc | — | 23.2K | $6.66M | 5.0% | −$589.4K | Held |
| Alphabet Inc | — | 22.6K | $6.47M | 4.9% | −$607.6K | Held |
| Moodys Corp | — | 13.6K | $5.93M | 4.5% | −$1.01M | Held |
| Photronics Inc | PLAB | 96.7K | $3.91M | 3.0% | $813.5K | Cut$367.1K |
| Planet Labs Pbc | PL | 105.9K | $2.96M | 2.2% | $871.3K | Cut−$2.86M |
| Aehr Test Sys | — | 79.5K | $2.95M | 2.2% | $1.34M | Cut$628.6K |
| Seabridge Gold Inc | SA | 96K | $2.72M | 2.1% | −$120K | Held |
| Vermilion Energy Inc. | VET | 197.8K | $2.72M | 2.1% | $1.07M | Held |
| Prothena Corp Plc | — | 271.7K | $2.64M | 2.0% | — | New |
| Viemed Healthcare, Inc. | VMD | 272.4K | $2.51M | 1.9% | $483.4K | Added$491.2K |
| Electrovaya Inc. | ELVA | 295.4K | $2.3M | 1.7% | −$34.6K | Cut−$465.2K |
| Thomson Reuters Corp | — | 24.8K | $2.23M | 1.7% | −$1.04M | Cut−$1.07M |
| Blackstone Inc. | BX | 18.1K | $2.09M | 1.6% | −$579.4K | Added−$194.2K |
| Alkami Technology, Inc. | ALKT | 127.7K | $2M | 1.5% | −$944.9K | Held |
| CuriosityStream Inc. | CURI | 675.1K | $2M | 1.5% | −$291.7K | Added$678.7K |
| Nuveen N Y Mun Value Fd | — | 213.7K | $1.78M | 1.4% | −$45.7K | Held |
| Targa Res Corp | — | 6.89K | $1.73M | 1.3% | $456.5K | Cut$431.4K |
| Berkshire Hathaway Inc Del | — | 3.3K | $1.58M | 1.2% | −$77.4K | Cut−$102.5K |
| Cryoport, Inc. | CYRX | 185.8K | $1.54M | 1.2% | −$69.7K | Added$1.03M |
| Verizon Communications Inc | VZ | 29.9K | $1.5M | 1.1% | $283.1K | Cut$232.8K |
| Energy Transfer L P | — | 74.5K | $1.44M | 1.1% | $209.3K | Held |
| Cisco Sys Inc | — | 18.4K | $1.42M | 1.1% | $10.3K | Held |
| Sony Group Corp | — | 68.5K | $1.42M | 1.1% | −$335.7K | Held |
| Williams Cos Inc | — | 19.1K | $1.39M | 1.1% | $242.4K | Held |
| Mesoblast Ltd | — | 87.1K | $1.34M | 1.0% | −$231.6K | Cut−$240.6K |
| Magnite, Inc. | MGNI | 112.2K | $1.33M | 1.0% | −$135.3K | Added$827.8K |
| Automatic Data Processing In | — | 6.3K | $1.28M | 1.0% | −$340.5K | Held |
| Extreme Networks Inc | EXTR | 83.5K | $1.26M | 1.0% | — | New |
| Hess Midstream Lp | HESM | 30.1K | $1.17M | 0.9% | $131.3K | Held |
| Airbnb, Inc. | ABNB | 8.95K | $1.13M | 0.9% | −$84.5K | Held |
| Axcelis Technologies Inc | ACLS | 12.1K | $1.13M | 0.9% | $154.1K | Cut−$151.2K |
| AbbVie Inc. | ABBV | 5.17K | $1.12M | 0.9% | −$56.9K | Cut−$70.6K |
| USA Compression Partners, LP | USAC | 41K | $1.11M | 0.8% | $169.1K | Held |
| Spdr S&P 500 Etf Tr | — | 1.6K | $1.04M | 0.8% | −$50.7K | Cut−$129.1K |
| Oneok Inc /New/ | OKE | 11.3K | $1.02M | 0.8% | $191K | Held |
| Doubleverify Hldgs Inc | — | 102.9K | $977.6K | 0.7% | −$199.6K | Held |
| NPK International Inc. | NPKI | 67.3K | $974.5K | 0.7% | $172.8K | Held |
| Meta Platforms, Inc. | META | 1.7K | $972.6K | 0.7% | −$149.5K | Held |
| Marvell Technology, Inc. | MRVL | 9.73K | $963.8K | 0.7% | $136.9K | Held |
| Nvidia Corp | NVDA | 5.22K | $910.9K | 0.7% | −$63.2K | Held |
| Data I/O Corp | DAIO | 356.9K | $902.8K | 0.7% | −$228.4K | Held |
| Shell Plc | — | 9.4K | $874.2K | 0.7% | $183.5K | Held |
| Novartis Ag | — | 5.54K | $846.2K | 0.6% | $82.4K | Cut$72.8K |
| Cenovus Energy Inc. | CVE | 29.9K | $792.7K | 0.6% | $287.1K | Held |
| Asure Software Inc | ASUR | 89.6K | $770.9K | 0.6% | −$73.2K | Added−$69.7K |
| Etfs Gold Tr | — | 17.2K | $765.5K | 0.6% | $60.7K | Held |
| Popular Inc | — | 5.5K | $737.9K | 0.6% | $53.1K | Cut−$737.6K |
| Emerson Elec Co | — | 5.3K | $694.4K | 0.5% | −$9.01K | Held |
| Western Midstream Partners L | — | 15.9K | $654.6K | 0.5% | $26.6K | Held |
| Range Res Corp | — | 14.2K | $643.4K | 0.5% | $141.3K | Held |
| Regeneron Pharmaceuticals, Inc. | REGN | 785 | $606.5K | 0.5% | $604 | Cut−$8.66K |
| Invesco Qqq Tr | — | 925 | $533.9K | 0.4% | −$34.3K | Cut−$614.9K |
| Lincoln Edl Svcs Corp | — | 12.7K | $518.3K | 0.4% | $210.6K | Cut$107.1K |
| First Bancorp P R | — | 23.5K | $502K | 0.4% | $14.8K | Cut−$428.8K |
| Putnam Master Inter Income T | — | 147.1K | $480.9K | 0.4% | −$10.3K | Held |
| Par Technology Corp | PAR | 35.8K | $476.9K | 0.4% | −$454.8K | Added−$242K |
| Power Integrations Inc | POWI | 9.2K | $471K | 0.4% | $144.1K | Held |
| Kulicke & Soffa Inds Inc | — | 7.1K | $466.6K | 0.4% | $143.1K | Held |
| Biolife Solutions Inc | BLFS | 23.2K | $441.8K | 0.3% | −$117.1K | Added−$113.3K |
| Dorchester Minerals Lp | DMLP | 16.2K | $439.7K | 0.3% | $76.9K | Held |
| Enterprise Prods Partners L | — | 11.4K | $432.4K | 0.3% | $66K | Held |
| Fidelity National Financial, Inc. | FNF | 9.17K | $425.2K | 0.3% | −$75.3K | Cut−$684.1K |
| Apple Inc. | AAPL | 1.53K | $388K | 0.3% | −$27.6K | Held |
| Bristol-Myers Squibb Co | — | 6.25K | $379.1K | 0.3% | $41.9K | Held |
| One Stop Sys Inc | — | 46.7K | $353.8K | 0.3% | $18.2K | Held |
| Paysign, Inc. | PAYS | 55.8K | $329.1K | 0.2% | $23.1K | Added$170.4K |
| Invesco Exchange Traded Fd T | — | 1.67K | $320.5K | 0.2% | $601 | Held |
| International Business Machs | — | 1.28K | $311K | 0.2% | −$69.1K | Cut−$170.9K |
| Chevron Corp New | CVX | 1.38K | $284.9K | 0.2% | $75K | Held |
| Conocophillips | COP | 2.02K | $267.3K | 0.2% | — | New |
| Kopin Corp | KOPN | 114.6K | $257.8K | 0.2% | −$10.3K | Cut−$11.2K |
| Backblaze, Inc. | BLZE | 72.2K | $248.9K | 0.2% | −$86.3K | Added−$83.6K |
| Spdr Series Trust | — | 3.18K | $243.4K | 0.2% | −$11.7K | Cut−$13.3K |
| Reaves Util Income Fd | — | 6.13K | $240.6K | 0.2% | $16.3K | Added$20.2K |
| J P Morgan Exchange Traded F | — | 4.22K | $239.5K | 0.2% | −$2.37K | Held |
| Antero Midstream Corp | AM | 9.9K | $225.7K | 0.2% | — | New |
| Tetra Technologies Inc Del | — | 26.4K | $225K | 0.2% | −$22.4K | Cut−$187K |
| Hercules Capital Inc | — | 15.1K | $222.4K | 0.2% | −$59.8K | Added−$55.5K |
| Exxon Mobil Corp | — | 1.28K | $217.2K | 0.2% | — | New |
| NIKE, Inc. | NKE | 3.96K | $209.2K | 0.2% | −$42.3K | Added−$38.3K |
| Merck & Co., Inc. | MRK | 1.7K | $204.5K | 0.2% | — | New |
| Invesco Municipal Trust | VKQ | 20K | $190.4K | 0.1% | −$2.6K | Held |
| Golub Cap Bdc Inc | — | 14.7K | $185.8K | 0.1% | −$13.4K | Cut−$135.5K |
| Nuveen Mun Value Fd Inc | — | 20K | $179.8K | 0.1% | −$1.4K | Held |
| Iovance Biotherapeutics, Inc. | IOVA | 42.4K | $149K | 0.1% | $26.5K | Added$56.3K |
| Dynex Cap Inc | — | 10.1K | $128.2K | 0.1% | — | New |
| Aquestive Therapeutics, Inc. | AQST | 25.6K | $106.1K | 0.1% | −$59.1K | Cut−$166.3K |
| Ondas Hldgs Inc | ONDS | 10K | $90.4K | 0.1% | −$7.2K | Held |
| Profound Med Corp | — | 12.3K | $79.7K | 0.1% | — | New |
| Exagen Inc. | XGN | 13.3K | $40K | 0.0% | −$41.1K | Cut−$41.7K |
Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.