Terminal · Institutions

Every 13F-reported equity position this quarter, with its quarter-over-quarter change — each row traces back to the SEC filing.

13D Management LLC 13F Holdings -- Portfolio & Top Positions (2026-06-30)

13D Management LLC (CIK 1600133) reported $71.3M across 11 reported positions in its SEC 13F filing for 2026-06-30. Largest positions: VSAT ($11.3M, 15.89%), TWLO ($8.0M, 11.28%), MRCY ($7.4M, 10.37%), PSO ($7.3M, 10.21%), ALV ($6.5M, 9.09%). Source: SEC Form 13F.

RankTickerCompanyValue% PortfolioSharesAction
1VSATVIASAT INC$11.3M15.89%126,250Trimmed
2TWLOTWILIO INC$8.0M11.28%39,000Trimmed
3MRCYMERCURY SYS INC$7.4M10.37%60,462Hold
4PSOPEARSON PLC$7.3M10.21%458,338Hold
5ALVAUTOLIV INC$6.5M9.09%55,839Hold
6CRLCHARLES RIV LABS INTL INC$5.9M8.20%25,800Hold
7SNPSSYNOPSYS INC$5.6M7.91%12,650New
8EXELEXELIXIS INC$5.5M7.73%101,335Hold
9ETSYETSY INC$5.4M7.59%71,836Hold
10ITGRINTEGER HLDGS CORP$4.4M6.16%47,000Hold
11FUNSIX FLAGS ENTERTAINMENT CORP$4.0M5.57%186,500Hold
12ACHCACADIA HEALTHCARE COMPANY IN$00.00%0Exited
13TRIPTRIPADVISOR INC$00.00%0Exited
14WKWORKIVA INC$00.00%0Exited

Source: SEC Form 13F filings · as of 2026-06-30