D1 Capital Partners L.P. is an institutional investment manager that files quarterly 13F reports with the SEC. As of Q4 2025, the fund manages $10.7B in reported equity holdings across 42 positions. The largest holdings are CART (9.5%), CLH (6.1%), FLS (5.0%), JHX (4.7%), RDDT (4.6%). The portfolio is concentrated in Other (81.9%), Communication Services (6.5%), Industrials (6.3%). Data sourced from SEC EDGAR 13F filings (CIK 1747057).