- Quarter end
- 31 Mar 2025
- the date the book describes
- Filed
- 27 Oct 2026
- latest of these filings; the earliest 2 May 2025
- Managers listing it
- 19
- at least, of 95 tracked, among listed positions
- Comparable managers
- 95
- filed both Q4 2024 and Q1 2025; 12 listed it in both
- Shares listed
- 38,340,704
- combined, among listed positions
- Reported value
- $3.2bn
- combined, at the quarter end
Among the 95 comparable managers: 14 buyers (opened or added shares) and 6 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.
Managers listing COO in Q1 2025
19 of 19 holders
Largest increases and reductions, by shares
Increases
- Capital World Investorsexisting position · 7,746,566 shares now+3,557,989
- Balyasny Asset Management LLCnew position · 1,216,273 shares now+1,216,273
- Neuberger Berman Group LLCexisting position · 3,608,798 shares now+1,061,033
- Millennium Management LLCexisting position · 2,577,416 shares now+707,166
- Holocene Advisors LPexisting position · 1,630,138 shares now+547,036
Reductions
- AllianceBernstein LPexisting position · 3,882,720 shares now-647,270
- Marshall Wace LLPexisting position · 825,917 shares now-296,385
- Invesco Ltdexisting position · 4,724,757 shares now-122,124
- Janus Henderson Group Ltdexisting position · 2,967,953 shares now-57,403
New positions and exits
New (1)
Exited (2)
- Viking Global Investors LPwas $186m
- Soros Fund Management LLCwas $21m
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q1 2024 | 21 | $3.0bn | 21 | 0 |
| Q2 2024 | 19 | $2.5bn | 10 | 9 |
| Q3 2024 | 19 | $3.3bn | 7 | 11 |
| Q4 2024 | 16 | $2.9bn | 6 | 9 |
| Q1 2025 | 19 | $3.2bn | 14 | 6 |
| Q2 2025 | 21 | $3.0bn | 13 | 8 |
| Q3 2025 | 16 | $3.2bn | 8 | 9 |
| Q4 2025 | 17 | $3.4bn | 13 | 20 |
| Q1 2026 | 13 | $2.6bn | 11 | 19 |
| Q2 2026 | 19 | $2.6bn | 24 | 9 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
COO and LLY →COO and JNJ →COO and VRTX →Choose a stock to compare with COO →
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 COO, latest filings →Back to the 13F Explorer →