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: 0001350290
Total reported value
$2.7B
$2.7B
144 檔
11.9%
The Q1 2026 SEC filing reveals that Portolan Capital Management, LLC held a total portfolio value of $2.7B, covering 144 public equity positions.
In Q1 2026, Portolan Capital Management, LLC adopted a defensive or profit-taking posture, trimming 61 positions and completely liquidating 41 holdings to manage risk exposure.
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | MOD | Modine Manufacturing Co | Stock-Consumer Disc | 4.75% | -1.61% | -23.11% | |
| 2 | TTMI | Ttm Technologies | Stock-Tech | 3.77% | -0.21% | -36.56% | |
| 3 | CLS | Celestica Inc | Stock-Tech | 2.97% | -1.24% | +14.85% | |
| 4 | VIRT | Virtu Financial Inc-class A | Stock-Financials | 2.84% | +1.94% | +222.07% | |
| 5 | AKAM | Akamai Technologies Inc | Stock-Tech | 2.59% | -1.22% | -19.24% | |
| 6 | VPG | Vishay Precision Group | Stock-Other | 2.36% | +3.30% | +16.20% | |
| 7 | PARR | Par Pacific Holdings Inc | Stock-Energy | 2.31% | -1.59% | — | |
| 8 | POWL | Powell Industries Inc | Stock-Industrials | 2.18% | -0.62% | -4.15% | |
| 9 | BIDU | Baidu Inc - Spon Adr | Stock-Comm Services | 2.17% | -1.76% | +38.97% | |
| 10 | PBF | Pbf Energy Inc-class A | Stock-Energy | 2.03% | -2.03% | EXIT | |
| 11 | UTHR | United Therapeutics CORP | Stock-Healthcare | 2.00% | -0.35% | +72.60% | |
| 12 | REAX | Real Brokerage Inc/the | Stock-Other | 1.93% | -1.18% | +34.69% | |
| 13 | GOOS | Canada Goose Holdings Inc | Stock-Other | 1.88% | -0.90% | +50.46% | |
| 14 | CRGY | Crescent Energy Inc-a | Stock-Energy | 1.87% | -1.87% | EXIT | |
| 15 | CSTL | Castle Biosciences Inc | Stock-Other | 1.76% | -1.47% | -21.92% | |
| 16 | LNTH | Lantheus Holdings Inc | Stock-Healthcare | 1.68% | -0.48% | -12.27% | |
| 17 | CLBT | Cellebrite DI Ltd. | Stock-Other | 1.60% | -0.54% | +69.42% | |
| 18 | LUXE | Luxexperience BV | Stock-Other | 1.59% | -0.46% | +40.34% | |
| 19 | FLEX | Flex Ltd. | Stock-Tech | 1.54% | -0.15% | -5.09% | |
| 20 | FN | Fabrinet | Stock-Tech | 1.52% | -1.38% | +403.43% | |
| 21 | ECO | Okeanis Eco Tankers Corp. | Stock-Other | 1.45% | -1.08% | +233.01% | |
| 22 | TLN | Talen Energy CORP | Stock-Utilities | 1.39% | -0.09% | +8.79% | |
| 23 | SMTC | Semtech CORP | Stock-Tech | 1.36% | +0.43% | -34.67% | |
| 24 | CNR | Core Natural Resources Inc | Stock-Energy | 1.32% | -1.32% | EXIT | |
| 25 | MUSA | Murphy USA Inc | Stock-Consumer Disc | 1.26% | -1.26% | EXIT | |
| 26 | BIIB | Biogen Inc | Stock-Healthcare | 1.16% | — | +39.41% | |
| 27 | KRUS | Kura Sushi USA Inc-class A | Stock-Other | 1.12% | -0.47% | +57.87% | |
| 28 | QLYS | Qualys Inc | Stock-Tech | 1.12% | +1.61% | +360.95% | |
| 29 | JBL | Jabil Inc | Stock-Tech | 1.09% | -0.53% | +9.24% | |
| 30 | CRCL | Circle Internet Group Inc | Stock-Financials | 1.09% | -1.09% | EXIT | |
| 31 | DHT | DHT Holdings, Inc. | Stock-Other | 1.06% | -0.87% | — | |
| 32 | NOK | Nokia Corp-spon Adr | Stock-Tech | 1.02% | -0.20% | +122.46% | |
| 33 | ALNT | Allient Inc | Stock-Other | 1.02% | +0.37% | +7.14% | |
| 34 | PRIM | Primoris Services CORP | Stock-Industrials | 0.99% | -0.99% | EXIT | |
| 35 | DAVE | Dave Inc | Stock-Other | 0.98% | +0.49% | +139.64% | |
| 36 | KTOS | Kratos Defense & Security | Stock-Industrials | 0.97% | -0.86% | -11.63% | |
| 37 | MAMA | Mama's Creations Inc | Stock-Other | 0.96% | -0.30% | -5.53% | |
| 38 | ADEA | Adeia Inc | Stock-Other | 0.93% | -0.38% | +184.71% | |
| 39 | UPWK | Upwork Inc | Stock-Other | 0.92% | -0.92% | EXIT | |
| 40 | PLSE | Pulse Biosciences Inc | Stock-Other | 0.84% | -0.06% | +86.37% | |
| 41 | PRCH | Porch Group Inc | Stock-Other | 0.82% | +0.56% | +2.97% | |
| 42 | HAFN | Hafnia Limited | Stock-Other | 0.79% | -0.70% | — | |
| 43 | MEC | Mayville Engineering Co Inc | Stock-Other | 0.78% | +1.04% | +60.14% | |
| 44 | CADL | Candel Therapeutics Inc | Stock-Other | 0.75% | +0.60% | +70.72% | |
| 45 | LASR | Nlight Inc | Stock-Other | 0.68% | -0.28% | -61.79% | |
| 46 | GENI | Genius Sports Limited | Stock-Other | 0.66% | +0.93% | -5.01% | |
| 47 | AS | Amer Sports, Inc. | Stock-Consumer Disc | 0.63% | -0.06% | — | |
| 48 | EBAY | Ebay Inc | Stock-Consumer Disc | 0.61% | -0.33% | +116.87% | |
| 49 | PKE | Park Aerospace CORP | Stock-Other | 0.60% | +0.04% | +67.59% | |
| 50 | ENVA | Enova International Inc | Stock-Financials | 0.58% | +1.21% | -17.30% |
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | VIRT | Virtu Financial Inc-class A | +2.2% | +222.07% | Add |
| 2 | CRGY | Crescent Energy Inc-a | +1.9% | +6419.15% | Add |
| 3 | FN | Fabrinet | +1.3% | +403.43% | Add |
| 4 | ECO | Okeanis Eco Tankers Corp. | +1.2% | +233.01% | Add |
| 5 | UTHR | United Therapeutics CORP | +1% | +72.60% | Add |
| 6 | MOD | Modine Manufacturing Co | +0.9% | -23.11% | Trim |
| 7 | POWL | Powell Industries Inc | +0.8% | -4.15% | Trim |
| 8 | QLYS | Qualys Inc | +0.8% | +360.95% | Add |
| 9 | CNR | Core Natural Resources Inc | +0.7% | +82.00% | Add |
| 10 | ADEA | Adeia Inc | +0.7% | +184.71% | Add |
| 11 | NOK | Nokia Corp-spon Adr | +0.7% | +122.46% | Add |
| 12 | KRUS | Kura Sushi USA Inc-class A | +0.6% | +57.87% | Add |
| 13 | VPG | Vishay Precision Group | +0.6% | +16.20% | Add |
| 14 | PLSE | Pulse Biosciences Inc | +0.6% | +86.37% | Add |
| 15 | DAVE | Dave Inc | +0.5% | +139.64% | Add |
| 16 | LUXE | Luxexperience BV | +0.4% | +40.34% | Add |
| 17 | GOOS | Canada Goose Holdings Inc | +0.4% | +50.46% | Add |
| 18 | RRX | Regal Rexnord CORP | +0.4% | +133.68% | Add |
| 19 | CLBT | Cellebrite DI Ltd. | +0.4% | +69.42% | Add |
| 20 | BIIB | Biogen Inc | +0.4% | +39.41% | Add |
| 21 | EBAY | Ebay Inc | +0.3% | +116.87% | Add |
| 22 | BIDU | Baidu Inc - Spon Adr | +0.3% | +38.97% | Add |
| 23 | PKE | Park Aerospace CORP | +0.3% | +67.59% | Add |
| 24 | PRIM | Primoris Services CORP | +0.3% | +23.56% | Add |
| 25 | MEC | Mayville Engineering Co Inc | +0.3% | +60.14% | Add |
| 26 | CLS | Celestica Inc | +0.2% | +14.85% | Add |
| 27 | CADL | Candel Therapeutics Inc | +0.2% | +70.72% | Add |
| 28 | JBL | Jabil Inc | +0.2% | +9.24% | Add |
| 29 | TALO | Talos Energy Inc | +0.2% | +189.29% | Add |
| 30 | UPWK | Upwork Inc | +0.2% | +118.24% | Add |
| 31 | FORR | Forrester Research Inc | +0.2% | +118.39% | Add |
| 32 | ALNT | Allient Inc | +0.2% | +7.14% | Add |
| 33 | AKAM | Akamai Technologies Inc | +0.1% | -19.24% | Trim |
| 34 | XPEV | Xpeng Inc - Adr | +0.1% | +184.16% | Add |
| 35 | RELY | Remitly Global Inc | +0.1% | +11.17% | Add |
| 36 | LITE | Lumentum Holdings Inc | +0.1% | — | Unchanged |
| 37 | AMBA | Ambarella, Inc. | +0.1% | +100.49% | Add |
| 38 | PSNL | Personalis Inc | +0.1% | +94.28% | Add |
| 39 | LPRO | Open Lending CORP | +0.1% | +45.73% | Add |
| 40 | MAMA | Mama's Creations Inc | +0.1% | -5.53% | Trim |
| 41 | WLDN | Willdan Group Inc | +0.1% | +63.10% | Add |
| 42 | MBLY | Mobileye Global Inc-a | +0.1% | +98.32% | Add |
| 43 | IESC | Ies Holdings Inc | +0.1% | +0.65% | Add |
| 44 | FLEX | Flex Ltd. | 0% | -5.09% | Trim |
| 45 | SEI | Solaris Energy Infrastructur | 0% | +43.42% | Add |
| 46 | FEIM | Frequency Electronics Inc | 0% | +32.78% | Add |
| 47 | ECG | Everus Construction Group | 0% | — | Unchanged |
| 48 | LINC | Lincoln Educational Services | 0% | — | Unchanged |
| 49 | LHX | L3harris Technologies Inc | 0% | — | Unchanged |
| 50 | SD | Sandridge Energy Inc | 0% | -7.77% | Trim |
According to official SEC Form 13F filings, Portolan Capital Management, LLC reported a total U.S. public equity portfolio value of $2.7B across 144 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 MOD, TTMI, CLS) accounted for 11.9% of total reported equity market value during Q1 2026.
Top New Position Initiated
PARR
市值: $43.5M
Top Position Liquidated / Trimmed
FSLR
前期市值: $20.6M
During Q1 2026, Portolan Capital Management, LLC's top holdings by market value included MOD (4.8%)、TTMI (3.8%)、CLS (3.0%). The largest single position, MOD, represented 4.8% of total portfolio value.
In Q1 2026, Portolan Capital Management, LLC made 181 total portfolio adjustments, initiating 30 new buys, adding to 49 positions, trimming 61 holdings, and fully liquidating 41 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.