13D Management LLC
CIK 1600133 · View on SEC EDGAR ↗
- Portfolio value
- $71.3M
- Positions
- 11
- As of
- June 30, 2026
Portfolio value QoQ: +10.6% 13F does not disclose cash
- Top 10 holdings weight
- 94.43%
- Top 25 holdings weight
- 100.00%
- Positions above 1%
- 11
- Effective number of positions
- 10.1
Based on 13F long-equity holdings only (cash, bonds, shorts not disclosed)
Turnover Q2 2026: 8.31% Est. buys $5,642,786 · sells $21,121,814
Median holding: 3.0 quarters Tracked Q4 2024–Q2 2026 · 30.6% still held
- New positions
- 1
- Increased
- 0
- Decreased
- 2
- Closed
- 3
On this page
- Performance vs S&P How this manager's 13F portfolio performed against the S&P 500.
- Sector breakdown How the portfolio splits across market sectors.
- Portfolio Every stock this institution reports holding, from its latest 13F.
- Biggest new bets Brand-new positions opened in the latest quarter.
- Top moves The biggest position increases and decreases this quarter.
- Exited positions Positions the manager fully sold out of last quarter.
Performance vs S&P 500
Annualized: +24.3% · S&P 500: +18.0%
Approximates a buy-and-hold portfolio built from quarterly SEC 13F snapshots. Excludes cash, short positions, options/derivatives, and non-13(f) securities — reflects the disclosed long-equity book only, not total fund AUM. SEC filing lag is up to 45 days; this is not a real-time-copyable timing.
Priceable coverage: 100.0% · Options excluded: 0.0%
Sector breakdown
Full portfolio 11 positions
| Type | Streak | 8Q trend | |||||
|---|---|---|---|---|---|---|---|
| VSAT ViaSat, Inc. - Common Stock | $11,338,513 | 15.89% | 126,250 | $3,792,963 | Down ×3 | ||
| TWLO Twilio Inc. Class A Common Stock | $8,046,870 | 11.28% | 39,000 | $402,676 | Down ×1 | ||
| MRCY Mercury Systems Inc - Common Stock | $7,396,316 | 10.37% | 60,462 | $2,988,032 | |||
| PSO Pearson, Plc Common Stock | $7,282,991 | 10.21% | 458,338 | $1,265,013 | |||
| ALV Autoliv, Inc. Common Stock | $6,486,817 | 9.09% | 55,839 | $614,788 | |||
| CRL Charles River Laboratories International, Inc. Common Stock | $5,851,182 | 8.20% | 25,800 | $1,400,682 | |||
| SNPS Synopsys, Inc. - Common Stock | $5,642,786 | 7.91% | 12,650 | Up ×1 | |||
| EXEL Exelixis, Inc. - Common Stock | $5,513,637 | 7.73% | 101,335 | $1,167,379 | |||
| ETSY Etsy, Inc. - Common Stock | $5,411,406 | 7.59% | 71,836 | $1,821,043 | |||
| ITGR Integer Holdings Corporation Common Stock | $4,392,150 | 6.16% | 47,000 | $256,150 | |||
| FUN Six Flags Entertainment Corporation Common Stock New | $3,972,450 | 5.57% | 186,500 | $662,075 | |||
| No matches | |||||||
Biggest new bets
New positions opened this quarter, largest first.
| Security | Value | Shares | % of portfolio |
|---|---|---|---|
| SNPS | $5,642,786 | 12,650 | 7.91% |
Top movers (QoQ)
| Security | Action | Shares Δ | Value Δ |
|---|---|---|---|
| VSAT | Trimmed | -38K | +$3.8M |
| MRCY | Price move only | +0 | +$3.0M |
| ETSY | Price move only | +0 | +$1.8M |
| CRL | Price move only | +0 | +$1.4M |
| PSO | Price move only | +0 | +$1.3M |
| EXEL | Price move only | +0 | +$1.2M |
| FUN | Price move only | +0 | +$662K |
| ALV | Price move only | +0 | +$615K |
| TWLO | Trimmed | -22K | +$403K |
| ITGR | Price move only | +0 | +$256K |
Exited positions
Includes corporate events (mergers, delistings) — not all exits are sells
Closed positions reflect 13F reporting changes; for index managers these are often mechanical (delisting, M&A, index rebalancing), not active decisions.
| Security | Quarter | Shares before | Value before | Price since exit |
|---|---|---|---|---|
| QRVO | Dec. 31, 2025 | 88,740 | $8,082,439 | 15.4% |
| NSIT | June 30, 2025 | 47,714 | $7,156,623 | 7.1% |
| ACHC | June 30, 2026 | 294,000 | $6,876,660 | -1.6% |
| APD | Sept. 30, 2025 | 23,900 | $6,741,234 | 11.7% |
| JHG | Dec. 31, 2025 | 134,654 | $5,993,450 | No longer tracked |
| CNI | March 31, 2025 | 53,010 | $5,381,045 | 31.8% |
| ABG | Dec. 31, 2025 | 21,337 | $5,215,830 | -9.7% |
| RIOT | Sept. 30, 2025 | 453,272 | $5,121,974 | -4.7% |
| SWX | March 31, 2026 | 63,798 | $5,105,116 | 6.0% |
| KVUE | Sept. 30, 2025 | 235,309 | $4,925,017 | 16.9% |
| BILL | March 31, 2026 | 90,000 | $4,908,600 | 28.8% |
| BLCO | March 31, 2025 | 265,000 | $4,785,900 | 20.9% |
| HR | March 31, 2025 | 277,000 | $4,695,150 | 13.7% |
| MTCH | Dec. 31, 2025 | 132,779 | $4,689,754 | 23.2% |
| PFGC | Dec. 31, 2025 | 43,000 | $4,473,720 | 16.7% |
| YETI | Dec. 31, 2025 | 132,000 | $4,379,760 | -1.3% |
| WEX | March 31, 2026 | 29,350 | $4,372,563 | 27.4% |
| MIDD | Sept. 30, 2025 | 26,097 | $3,757,968 | -14.1% |
| PENN | Sept. 30, 2025 | 195,045 | $3,485,454 | -4.3% |
| VSTS | Sept. 30, 2025 | 560,134 | $3,209,568 | 192.6% |
| RPD | June 30, 2025 | 120,873 | $3,204,343 | -47.8% |
| TRIP | June 30, 2026 | 300,000 | $3,198,000 | -23.1% |
| LW | March 31, 2026 | 76,001 | $3,183,682 | 25.6% |
| WK | June 30, 2026 | 52,000 | $3,100,760 | 51.6% |
| FTRE | March 31, 2025 | 129,001 | $2,405,869 | 141.0% |