What is SEC Form 13F? Ultimate Guide to Institutional Equity Filings
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
CIK: 0001381055
Total reported value
$156.8M
$156.8M
93 檔
27.9%
According to the latest 13F quarterly dataset, Penbrook Management LLC managed an equity portfolio of $156.8M at the end of Q1 2026, spanning 93 distinct U.S. exchange-listed positions.
In Q1 2026, Penbrook Management LLC adopted a defensive or profit-taking posture, trimming 28 positions and completely liquidating 12 holdings to manage risk exposure.
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | NVO | Novo-nordisk A/s-spons Adr | Stock-Healthcare | 8.80% | +0.87% | -0.06% | |
| 2 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 8.16% | -0.29% | — | |
| 3 | MSFT | Microsoft CORP | Stock-Tech | 6.24% | -1.02% | -2.22% | |
| 4 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 5.05% | +0.23% | — | |
| 5 | GOOG | Alphabet Inc-cl C | Stock-Comm Services | 4.90% | +0.18% | — | |
| 6 | MCO | Moody's CORP | Stock-Financials | 4.49% | -0.56% | — | |
| 7 | PLAB | Photronics Inc | Stock-Other | 2.96% | -1.11% | -12.60% | |
| 8 | PL | Planet Labs Pbc | Stock-Industrials | 2.24% | -0.51% | -64.14% | |
| 9 | AEHR | Aehr Test Systems | Stock-Other | 2.23% | -1.91% | -30.80% | |
| 10 | SEA1EUR | Seabridge Gold Inc | Stock-Other | 2.06% | -2.06% | EXIT | |
| 11 | VET | Vermilion Energy Inc | Stock-Other | 2.06% | -0.88% | — | |
| 12 | PRTA | Prothena Corporation plc | Stock-Other | 2.00% | -0.30% | — | |
| 13 | VMD | Viemed Healthcare Inc | Stock-Other | 1.90% | +0.12% | +0.31% | |
| 14 | ELVA | Electrovaya Inc | Stock-Other | 1.74% | +0.45% | -15.58% | |
| 15 | TRI4EUR | Thomson Reuters CORP | Stock-Other | 1.69% | -1.69% | EXIT | |
| 16 | BX | Blackstone Inc | Stock-Financials | 1.58% | -0.22% | +22.64% | |
| 17 | ALKT | Alkami Technology Inc | Stock-Other | 1.52% | +0.10% | — | |
| 18 | CURI | Curiositystream Inc | Stock-Other | 1.51% | -0.21% | +94.40% | |
| 19 | NNY | Nuveen New York Muni Val | Stock-Other | 1.35% | -0.16% | — | |
| 20 | TRGP | Targa Resources CORP | Stock-Energy | 1.31% | -0.13% | -1.94% | |
| 21 | BRK-B | Berkshire Hathaway Inc-cl B | Stock-Other | 1.20% | -0.15% | -1.49% | |
| 22 | CYRX | Cryoport Inc | Stock-Other | 1.16% | +0.87% | +251.61% | |
| 23 | VZ | Verizon Communications Inc | Stock-Comm Services | 1.14% | -0.32% | -3.97% | |
| 24 | ET | Energy Transfer LP | Stock-Energy | 1.09% | -0.18% | — | |
| 25 | CSCO | Cisco Systems Inc | Stock-Tech | 1.08% | +0.29% | — | |
| 26 | SONY | Sony Group CORP - Sp Adr | Stock-Tech | 1.07% | -0.19% | — | |
| 27 | WMB | Williams Cos Inc | Stock-Energy | 1.05% | -0.14% | — | |
| 28 | MESO | Mesoblast Ltd- Spon Adr | Stock-Other | 1.01% | -0.26% | -0.57% | |
| 29 | MGNI | Magnite Inc | Stock-Other | 1.01% | +0.35% | +260.57% | |
| 30 | ADP | Automatic Data Processing | Stock-Tech | 0.97% | -0.07% | — | |
| 31 | EXTR | Extreme Networks Inc | Stock-Other | 0.95% | +0.78% | — | |
| 32 | HESM | Hess Midstream LP - Class A | Stock-Other | 0.88% | -0.16% | — | |
| 33 | ABNB | Airbnb Inc-class A | Stock-Consumer Disc | 0.86% | -0.04% | — | |
| 34 | ACLS | Axcelis Technologies Inc | Stock-Tech | 0.85% | +0.47% | -23.91% | |
| 35 | ABBV | Abbvie Inc | Stock-Healthcare | 0.85% | -0.02% | -1.15% | |
| 36 | USAC | USA Compression Partners LP | Stock-Other | 0.84% | -0.15% | — | |
| 37 | SPY | Ss Spdr S&p 500 ETF Trust-us | ETF-Large Cap & Growth | 0.79% | -0.03% | -6.69% | |
| 38 | OKE | Oneok Inc | Stock-Energy | 0.77% | -0.14% | — | |
| 39 | DV | Doubleverify Holdings Inc | Stock-Other | 0.74% | -0.03% | — | |
| 40 | NPKI | Npk International Inc | Stock-Other | 0.74% | -0.05% | — | |
| 41 | META | Meta Platforms Inc-class A | Stock-Comm Services | 0.74% | -0.13% | — | |
| 42 | MRVL | Marvell Technology Inc | Stock-Tech | 0.73% | +1.12% | — | |
| 43 | NVDA | Nvidia CORP | Stock-Tech | 0.69% | -0.01% | — | |
| 44 | DAIO | Data I/o CORP | Stock-Other | 0.68% | +0.21% | — | |
| 45 | SHEL | Shell Plc-adr | Stock-Energy | 0.66% | -0.20% | — | |
| 46 | NVS | Novartis Ag-sponsored Adr | Stock-Healthcare | 0.64% | -0.09% | -1.25% | |
| 47 | CVE | Cenovus Energy Inc | Stock-Energy | 0.60% | -0.13% | — | |
| 48 | ASUR | Asure Software Inc | Stock-Other | 0.58% | -0.13% | +0.45% | |
| 49 | SGOL | Abrdn Physical Gold Shares | ETF-Commodities | 0.58% | -0.16% | — | |
| 50 | BPOP | Popular Inc | Stock-Financials | 0.56% | — | -53.59% |
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | VET | Vermilion Energy Inc | +0.9% | — | Unchanged |
| 2 | CYRX | Cryoport Inc | +0.8% | +251.61% | Add |
| 3 | MGNI | Magnite Inc | +0.7% | +260.57% | Add |
| 4 | AEHR | Aehr Test Systems | +0.6% | -30.80% | Trim |
| 5 | CURI | Curiositystream Inc | +0.6% | +94.40% | Add |
| 6 | PLAB | Photronics Inc | +0.5% | -12.60% | Trim |
| 7 | VMD | Viemed Healthcare Inc | +0.5% | +0.31% | Add |
| 8 | TRGP | Targa Resources CORP | +0.4% | -1.94% | Trim |
| 9 | VZ | Verizon Communications Inc | +0.3% | -3.97% | Trim |
| 10 | WMB | Williams Cos Inc | +0.3% | — | Unchanged |
| 11 | CVE | Cenovus Energy Inc | +0.3% | — | Unchanged |
| 12 | ET | Energy Transfer LP | +0.2% | — | Unchanged |
| 13 | OKE | Oneok Inc | +0.2% | — | Unchanged |
| 14 | NPKI | Npk International Inc | +0.2% | — | Unchanged |
| 15 | USAC | USA Compression Partners LP | +0.2% | — | Unchanged |
| 16 | SHEL | Shell Plc-adr | +0.2% | — | Unchanged |
| 17 | MRVL | Marvell Technology Inc | +0.2% | — | Unchanged |
| 18 | HESM | Hess Midstream LP - Class A | +0.2% | — | Unchanged |
| 19 | PAYS | Paysign Inc | +0.1% | +80.97% | Add |
| 20 | RRC | Range Resources CORP | +0.1% | — | Unchanged |
| 21 | POWI | Power Integrations Inc | +0.1% | — | Unchanged |
| 22 | KLIC | Kulicke & Soffa Industries | +0.1% | — | Unchanged |
| 23 | LINC | Lincoln Educational Services | +0.1% | -25.17% | Trim |
| 24 | NVS | Novartis Ag-sponsored Adr | +0.1% | -1.25% | Trim |
| 25 | SEA1EUR | Seabridge Gold Inc | +0.1% | — | Unchanged |
| 26 | CSCO | Cisco Systems Inc | +0.1% | — | Unchanged |
| 27 | SGOL | Abrdn Physical Gold Shares | +0.1% | — | Unchanged |
| 28 | NNY | Nuveen New York Muni Val | +0.1% | — | Unchanged |
| 29 | DMLP | Dorchester Minerals LP | +0.1% | — | Unchanged |
| 30 | CVX | Chevron CORP | +0.1% | — | Unchanged |
| 31 | EPD | Enterprise Products Partners | +0.1% | — | Unchanged |
| 32 | WES | Western Midstream Partners L | +0.1% | — | Unchanged |
| 33 | BMY | Bristol-myers Squibb Co | +0.1% | — | Unchanged |
| 34 | GOOGL | Alphabet Inc-cl A | +0.1% | — | Unchanged |
| 35 | IOVA | Iovance Biotherapeutics Inc | +0.1% | +25.04% | Add |
| 36 | BRK-B | Berkshire Hathaway Inc-cl B | 0% | -1.49% | Trim |
| 37 | OSS | One Stop Systems Inc | 0% | — | Unchanged |
| 38 | EMR | Emerson Electric Co | 0% | — | Unchanged |
| 39 | REGN | Regeneron Pharmaceuticals | 0% | -1.51% | Trim |
| 40 | ABBV | Abbvie Inc | 0% | -1.15% | Trim |
| 41 | UTG | Reaves Utility Income Fund | 0% | +1.66% | Add |
| 42 | GOOG | Alphabet Inc-cl C | 0% | — | Unchanged |
| 43 | ABNB | Airbnb Inc-class A | 0% | — | Unchanged |
| 44 | NVDA | Nvidia CORP | 0% | — | Unchanged |
| 45 | PIM | Putnam Master Intrm Inc Tr | 0% | — | Unchanged |
| 46 | NUV | Nuveen Municipal Value | 0% | — | Unchanged |
| 47 | RSP | Invesco S&p 500 Equal Weight | 0% | — | Unchanged |
| 48 | BX | Blackstone Inc | 0% | +22.64% | Add |
| 49 | KOPN | Kopin CORP | 0% | -0.35% | Trim |
| 50 | VKQ | Invesco Municipal Trust | 0% | — | Unchanged |
According to official SEC Form 13F filings, Penbrook Management LLC reported a total U.S. public equity portfolio value of $156.8M across 93 disclosed positions in Q1 2026.
Expert Analysis & Guides for Tracking Wall Street Smart Money Movements
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
In terms of portfolio concentration, the top 5 core holdings (including NVO, AMZN, MSFT) accounted for 27.9% of total reported equity market value during Q1 2026.
Top New Position Initiated
PRTA
市值: $2.6M
Top Position Liquidated / Trimmed
SYF
前期市值: $1.3M
During Q1 2026, Penbrook Management LLC's top holdings by market value included NVO (8.8%)、AMZN (8.2%)、MSFT (6.2%). The largest single position, NVO, represented 8.8% of total portfolio value.
In Q1 2026, Penbrook Management LLC made 62 total portfolio adjustments, initiating 8 new buys, adding to 14 positions, trimming 28 holdings, and fully liquidating 12 stocks.
All holding records on this page are fetched directly from the U.S. Securities and Exchange Commission (SEC) EDGAR system (Form 13F-HR). AlphaSMO parses CUSIP identifiers and formats data into Schema.org-compliant datasets.
Understand SEC Form 4 insider disclosures for corporate officers, directors, and 10% owners to track executive transactions.
Understand Rule 144 restricted stock sale notices to spot planned insider liquidations before market sell pressure arrives.
Explore the 5% beneficial ownership threshold, 13D vs 13G filing differences, and recent SEC accelerated deadline rules.
Best practices for analyzing 13F quarterly changes without getting misled by stock splits, options, or market valuation drift.
Learn how AlphaSMO's flagship signal detects high-conviction stocks where 13F hedge funds and corporate insiders buy at the same time.