JANA Partners Management, LP: COOPER COMPANIES (COO): Quarterly 13F Position History
As of Q1 2026, JANA Partners Management, LP reported 3,565,158 shares of COOPER COMPANIES (COO), worth $254.9M and representing 15.9% of its 13F equity book. Quarter-over-quarter share count change: + 45,538 (+1.3%) . The position first appeared in Q3 2025 and has been disclosed across 3 13F-HR filings in Pactolio's tracked window.
- 3,565,158Shares Held (Latest Filing)
- $254.9MReported Market Value (Latest Filing)
- 15.9%Portfolio Weight (% of 13F Equity Book)
- +45,538Quarter-over-Quarter Share Change
- -$33.6MQuarter-over-Quarter Value Change
- 3,565,158Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 3 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 3,565,158 | +45,538 | +1.3% | $254.9M | 15.9% | $71.5 |
| Q4 2025 | 3,519,620 | +1,085,013 | +44.6% | $288.5M | 15.0% | $82.0 |
| Q3 2025 | 2,434,607 | — | — | $166.9M | 8.1% | $68.6 |
Methodology & FAQ
How This Position History Is Sourced
Each row is one SEC Form 13F-HR filing disclosing this position. Share count, market value, and reported quarter are taken verbatim from the filing; portfolio weight is recomputed against the same filing's total reported equity book. Implied price-per-share is market value divided by shares — a quarter-end mark, not the manager's cost basis. See the full methodology document for the normalization rules.
When did JANA Partners Management, LP first disclose a COO position in 13F-HR filings?
JANA Partners Management, LP first reported COOPER COMPANIES (COO) on its 13F-HR filing for the period ending 2025-09-30 (Q3 2025). The position has appeared on 3 reported quarters within Pactolio's tracked window.
What was JANA Partners Management, LP's most recent quarter-over-quarter share-count change in COO?
Between Q4 2025 and Q1 2026, JANA Partners Management, LP added 45,538 shares of COO (+1.3%), bringing the total reported position to 3,565,158 shares at a market value of $254.9M.
Does the implied price-per-share represent JANA Partners Management, LP's cost basis in COO?
No. The implied price-per-share column is the 13F-HR reported market value divided by reported share count on the filing date (end of quarter). It is a quarter-end mark, not a cost basis or transaction price. Use it as a sanity check on the value column, not as an indicator of the manager's entry or exit price.