13D Management
New York, NYfiles as 13D Management LLC
$71m in 11 US stocks at the end of 30 June 2026. The top 10 are 94.4% of the money. It changed about 21.3% of the portfolio this quarter.
Value
$71m
Stocks
11
Top 10 share
94.4%
Turnover
21.3%
What changed this quarter
New
Bought for the first time this quarter.
- SynopsysSNPS7.9% of the fund
Added
Bought more of a stock they already held.
None this quarter.
Cut
Sold some of their stake.
- ViasatVSAT15.9% of the fund-23%
- TwilioTWLO11.3% of the fund-36%
Sold out
Sold their entire stake.
- Acadia Healthcare CompanyACHC-100%
- TripAdvisorTRIP-100%
- WorkivaWK-100%
Holdings
| Company | Share of fund | Value | Shares | Change |
|---|---|---|---|---|
| ViasatVSAT | 15.9% | $11m | 126,250 | -23% |
| TwilioTWLO | 11.3% | $8m | 39,000 | -36% |
| Mercury SystemsMRCY | 10.4% | $7m | 60,462 | Held |
| PearsonPSO | 10.2% | $7m | 458,338 | Held |
| AutolivALV | 9.1% | $6m | 55,839 | Held |
| Charles River Laboratories InternationalCRL | 8.2% | $6m | 25,800 | Held |
| SynopsysSNPS | 7.9% | $6m | 12,650 | New |
| ExelixisEXEL | 7.7% | $6m | 101,335 | Held |
| EtsyETSY | 7.6% | $5m | 71,836 | Held |
| Integer HoldingsITGR | 6.2% | $4m | 47,000 | Held |
| Six Flags EntertainmentFUN | 5.6% | $4m | 186,500 | Held |
Over time and by industry
Value over time
Jun '25
Dec '25
Jun '26
Value is down 34.9% since 30 June 2025.
Where the money is
Technology37.1%
Media & telecom26.1%
Health care22.1%
Retail & consumer14.7%
From the fund's 13F filings. They list US stocks and options only, 45 days after each quarter, and leave out cash, bonds, shorts and foreign shares.