CIK 1998597
Long positions in SEC Section 13(f) securities (US-listed stocks, ADRs and ETFs), largest first · Δ vs 2025-Q4. A lagged quarterly snapshot (filed ≤45 days after quarter-end); excludes shorts, options, cash, and shares listed only on non-US exchanges — foreign companies held via a US listing or ADR (e.g. Alibaba, TSMC) ARE included.
Firm-level facts as reported by the adviser on Form ADV Part 1A (latest filing 2026-05-29). Regulatory assets under management (RAUM) is Form ADV's gross figure and can differ from a 13F long book — it includes private-fund assets, leverage and non-13(f) securities. Titles and figures as-filed. Latest ADV filing 2026-05-29. Form ADV ↗
| Name | Title (as filed) | Since | Ownership |
|---|---|---|---|
| OSTFELD, SCOTT, DAVID | MANAGING PARTNER | LIMITED PARTNER | 2011-01 | 10–25% ·◆ |
| ROSENSTEIN, BARRY, STUART | FOUNDER & EXECUTIVE CHAIRMAN | LIMITED PARTNER | 2010-09 | 10–25% ·◆ |
| FANJIANG, JENNIFER | PARTNER, CHIEF LEGAL OFFICER & CHIEF COMPLIANCE OFFICER | LIMITED PARTNER | 2021-01 | 5–10% ·◆ |
| GALLIGAN, KEVIN, GARVEY | PARTNER | LIMITED PARTNER | 2017-12 | 5–10% ·◆ |
| HUNTER, RYAN, MATTHEW | CHIEF FINANCIAL OFFICER | 2021-05 | <5% |
| YOUNG, JAY, HYUN | CHIEF OPERATING OFFICER | 2016-01 | <5% |
| CANNAE HOLDINGS, LLCentity | SPECIAL LIMITED PARTNER | 2024-02 | 25–50% ·◆ |
| JANA PARTNERS MANAGEMENT GP, LLCentity | GENERAL PARTNER | 2010-09 | <5% ·◆ |
Direct owners and executive officers as filed on the adviser's Form ADV Schedule A (as-filed titles; ADV updates annually and on material change). This lists officers and 5%+ owners — not necessarily the full portfolio-management team.
Signed this manager's latest 13F (2026-Q1). The filing's authorized signatory — frequently a compliance officer, general counsel, or CFO — not necessarily the portfolio manager or firm leadership.