JANA Partners Management, LP: FISERV INC (FISV): Quarterly 13F Position History
As of Q2 2026, JANA Partners Management, LP reported 3,662,080 shares of FISERV INC (FISV), worth $179.6M and representing 9.4% of its 13F equity book. Quarter-over-quarter share count change: 773,525 (-17.4%) . The position first appeared in Q4 2025 and has been disclosed across 3 13F-HR filings in Pactolio's tracked window.
- 3,662,080Shares Held (Latest Filing)
- $179.6MReported Market Value (Latest Filing)
- 9.4%Portfolio Weight (% of 13F Equity Book)
- 773,525Quarter-over-Quarter Share Change
- -$67.9MQuarter-over-Quarter Value Change
- 4,435,605Peak 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 |
|---|---|---|---|---|---|---|
| Q2 2026 | 3,662,080 | 773,525 | -17.4% | $179.6M | 9.4% | $49.0 |
| Q1 2026 | 4,435,605 | +2,190,085 | +97.5% | $247.5M | 15.4% | $55.8 |
| Q4 2025 | 2,245,520 | – | – | $150.8M | 7.8% | $67.2 |
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 rather than the manager's cost basis. See the full methodology document for the normalization rules.
When did JANA Partners Management, LP first disclose a FISV position in 13F-HR filings?
JANA Partners Management, LP first reported FISERV INC (FISV) on its 13F-HR filing for the period ending 2025-12-31 (Q4 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 FISV?
Between Q1 2026 and Q2 2026, JANA Partners Management, LP reduced its FISV position by 773,525 shares (-17.4%), leaving 3,662,080 shares at a market value of $179.6M.
Does the implied price-per-share represent JANA Partners Management, LP's cost basis in FISV?
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.