13D Management Llc
Institutional manager — quarterly 13F holdings, Q ending 2026-03-31
Reported value
$64.5M
Q ending 2026-03-31
Prior quarter
$84.0M
Q ending 2025-12-31
Change
-23.3% QoQ · -43.1% YoY
Positions
13
reported holdings
Largest positions
All 13 reported positions, Q ending 2026-03-31. A manager can hold shares, calls and puts on the same security at once — such positions are listed as separate rows. Type: Shares = common stock, Put/Call = option positions (valued at the underlying), Principal = debt. Tickers link to stock pages where covered.
| Holding | Ticker | Type | Value ▼ | Shares |
|---|---|---|---|---|
| Twilio Inc | TWLO | Shares | $7.6M | 61K |
| Viasat Inc | VSAT | Shares | $7.5M | 165K |
| Acadia Healthcare Company In | ACHC | Shares | $6.9M | 294K |
| Pearson Plc | PSO | Shares | $6.0M | 458K |
| Autoliv Inc | ALV | Shares | $5.9M | 56K |
| Charles Riv Labs Intl Inc | CRL | Shares | $4.5M | 26K |
| Mercury Sys Inc | MRCY | Shares | $4.4M | 60K |
| Exelixis Inc | EXEL | Shares | $4.3M | 101K |
| Integer Hldgs Corp | ITGR | Shares | $4.1M | 47K |
| Etsy Inc | ETSY | Shares | $3.6M | 72K |
| Six Flags Entertainment Corp | FUN | Shares | $3.3M | 187K |
| Tripadvisor Inc | TRIP | Shares | $3.2M | 300K |
| Workiva Inc | WK | Shares | $3.1M | 52K |
Values as reported in public regulatory filings (USD); holdings are reported quarterly, up to 45 days after quarter end, and may contain reporting errors. Nothing here is investment advice.