- Quarter end
- 31 Dec 2025
- the date the book describes
- Filed
- 27 Oct 2026
- latest of these filings; the earliest 22 Jan 2026
- Managers listing it
- 33
- at least, of 95 tracked, among listed positions
- Comparable managers
- 92
- filed both Q3 2025 and Q4 2025; 11 listed it in both
- Shares listed
- 82,787,544
- combined, among listed positions
- Reported value
- $6.6bn
- combined, at the quarter end
Among the 92 comparable managers: 18 buyers (opened or added shares) and 20 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -8,069,341.
Managers listing IR in Q4 2025
33 of 33 holders
Largest increases and reductions, by shares
Increases
- MFS Investment Managementexisting position · 1,623,131 shares now+1,616,445
- Fidelity (FMR LLC)existing position · 7,249,712 shares now+764,926
- Voloridge Investment Management LLCexisting position · 472,947 shares now+428,373
- Janus Henderson Group Ltdexisting position · 6,430,270 shares now+380,204
- Arrowstreet Capital LPexisting position · 606,633 shares now+288,372
Reductions
- T. Rowe Price Associates Incexisting position · 8,691,564 shares now-5,197,822
- Wellington Management Group LLPexisting position · 1,828,282 shares now-3,008,034
- Capital World Investorsexisting position · 29,414,221 shares now-2,373,436
- Millennium Management LLCexisting position · 465,727 shares now-418,605
- Artisan Partners LPexisting position · 1,591,139 shares now-242,376
New positions and exits
New (4)
Exited (5)
- Marshall Wace LLPwas $22m
- Discovery Capital Management LLCwas $10m
- Moore Capital Management LPwas $8.7m
- Schonfeld Strategic Advisors LLCwas $2.9m
- Hudson Bay Capital Management LPwas $1.5m
Ownership over time
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
IR and GE →IR and LRCX →IR and GEV →Choose a stock to compare with IR →
How much of the picture this is
A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.
Which funds own IR, latest filings →Back to the 13F Explorer →