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: 0001600133
Total reported value
$71.3M
$71.3M
13 檔
47.6%
According to the latest 13F quarterly dataset, 13D Management LLC managed an equity portfolio of $71.3M at the end of Q1 2026, spanning 13 distinct U.S. exchange-listed positions.
In Q1 2026, 13D Management LLC adopted a defensive or profit-taking posture, trimming 4 positions and completely liquidating 4 holdings to manage risk exposure.
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | TWLO | Twilio Inc - A | Stock-Tech | 11.85% | -0.57% | — | |
| 2 | VSAT | Viasat Inc | Stock-Tech | 11.70% | +4.19% | -18.34% | |
| 3 | ACHC | Acadia Healthcare Co Inc | Stock-Other | 10.66% | -10.66% | EXIT | |
| 4 | PSO | Pearson Plc-sponsored Adr | Stock-Other | 9.33% | +0.88% | — | |
| 5 | ALV | Autoliv Inc | Stock-Consumer Disc | 9.10% | -0.01% | — | |
| 6 | CRL | Charles River Laboratories | Stock-Healthcare | 6.90% | +1.30% | -7.86% | |
| 7 | MRCY | Mercury Systems Inc | Stock-Industrials | 6.83% | +3.54% | -41.73% | |
| 8 | EXEL | Exelixis Inc | Stock-Healthcare | 6.74% | +0.99% | -15.79% | |
| 9 | ITGR | Integer Holdings CORP | Stock-Healthcare | 6.41% | -0.25% | — | |
| 10 | ETSY | Etsy Inc | Stock-Consumer Disc | 5.57% | +2.02% | — | |
| 11 | FUN | Six Flags Entertainment CORP | Stock-Other | 5.13% | +0.44% | — | |
| 12 | TRIP | Tripadvisor Inc | Stock-Other | 4.96% | -4.96% | EXIT | |
| 13 | WK | Workiva Inc | Stock-Tech | 4.81% | -4.81% | EXIT |
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | VSAT | Viasat Inc | +3.4% | -18.34% | Trim |
| 2 | ITGR | Integer Holdings CORP | +2% | — | Unchanged |
| 3 | FUN | Six Flags Entertainment CORP | +1.7% | — | Unchanged |
| 4 | PSO | Pearson Plc-sponsored Adr | +1.7% | — | Unchanged |
| 5 | TWLO | Twilio Inc - A | +1.6% | — | Unchanged |
| 6 | ALV | Autoliv Inc | +1.2% | — | Unchanged |
| 7 | ETSY | Etsy Inc | +0.8% | — | Unchanged |
| 8 | EXEL | Exelixis Inc | +0.5% | -15.79% | Trim |
| 9 | CRL | Charles River Laboratories | +0.3% | -7.86% | Trim |
| 10 | TRIP | Tripadvisor Inc | -0.2% | — | Unchanged |
| 11 | WK | Workiva Inc | -0.5% | — | Unchanged |
| 12 | MRCY | Mercury Systems Inc | -2.2% | -41.73% | Trim |
| 13 | ACHC | Acadia Healthcare Co Inc | — | NEW | New buy |
| 14 | SWX | Southwest Gas Holdings Inc | — | EXIT | Sold out |
| 15 | BILL | Bill Holdings Inc | — | EXIT | Sold out |
| 16 | WEX | Wex Inc | — | EXIT | Sold out |
| 17 | LW | Lamb Weston Holdings Inc | — | EXIT | Sold out |
According to official SEC Form 13F filings, 13D Management LLC reported a total U.S. public equity portfolio value of $71.3M across 13 disclosed positions in Q1 2026.
During Q1 2026, 13D Management LLC's top holdings by market value included TWLO (11.8%)、VSAT (11.7%)、ACHC (10.7%). The largest single position, TWLO, represented 11.8% of total portfolio value.
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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 TWLO, VSAT, ACHC) accounted for 47.6% of total reported equity market value during Q1 2026.
Top New Position Initiated
ACHC
市值: $6.9M
Top Position Liquidated / Trimmed
SWX
前期市值: $5.1M
In Q1 2026, 13D Management LLC made 9 total portfolio adjustments, initiating 1 new buys, adding to 0 positions, trimming 4 holdings, and fully liquidating 4 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.
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