Jana Partners' Strategic Moves: Fiserv Inc. Takes Center Stage with a 7.33% Portfolio Impact

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Exploring Jana Partners (Trades, Portfolio)' Latest 13F Filing and Investment Strategies

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Jana Partners (Trades, Portfolio) recently submitted its 13F filing for the first quarter of 2026, shedding light on its strategic investment decisions during this period. Founded in 2001 by Barry Rosenstein, Jana Partners (Trades, Portfolio) LLC is a New York-based investment management firm known for its value-oriented, event-driven strategy. The firm employs a fundamental value discipline to identify undervalued companies with specific catalysts for unlocking value. Jana Partners (Trades, Portfolio) is not just a passive investor; it often becomes an actively engaged shareholder to drive value creation. The firm invests both long and short across the capital structure, including equity and debt.Jana Partners' Strategic Moves: Fiserv Inc. Takes Center Stage with a 7.33% Portfolio Impact·us.finance.gurufocus

Summary of New Buy

Jana Partners (Trades, Portfolio) added a total of one stock to its portfolio this quarter:

The most significant addition was Everpure Inc (NYSE:P), with 1,042,296 shares, accounting for 3.69% of the portfolio and a total value of $61.54 million.

Key Position Increases

Jana Partners (Trades, Portfolio) also increased stakes in a total of three stocks, among them:

The most notable increase was in Fiserv Inc (NASDAQ:FISV), with an additional 2,190,085 shares, bringing the total to 4,435,605 shares. This adjustment represents a significant 97.53% increase in share count, a 7.33% impact on the current portfolio, and a total value of $247.51 million. The second largest increase was in Alkami Technology Inc (NASDAQ:ALKT), with an additional 536,723 shares, bringing the total to 5,431,388. This adjustment represents a significant 10.97% increase in share count, with a total value of $85.11 million.

Summary of Sold Out

Jana Partners (Trades, Portfolio) completely exited two holdings in the first quarter of 2026, as detailed below:

Treehouse Foods Inc (THS): Jana Partners (Trades, Portfolio) sold all 5,821,337 shares, resulting in a -7.15% impact on the portfolio. Freshpet Inc (NASDAQ:FRPT): Jana Partners (Trades, Portfolio) liquidated all 557,390 shares, causing a -1.77% impact on the portfolio.

Key Position Reduces

Jana Partners (Trades, Portfolio) also reduced positions in three stocks. The most significant changes include:

Reduced Mercury Systems Inc (NASDAQ:MRCY) by 852,057 shares, resulting in a -17.18% decrease in shares and a -3.24% impact on the portfolio. The stock traded at an average price of $87.08 during the quarter and has returned 67.78% over the past 3 months and 67.55% year-to-date. Reduced State Street SPDR S&P 500 ETF Trust (SPY) by 47,672 shares, resulting in a -12.18% reduction in shares and a -1.69% impact on the portfolio. The stock traded at an average price of $679.90 during the quarter and has returned 15.12% over the past 3 months and 10.09% year-to-date.

Story Continues

Portfolio Overview

At the end of the first quarter of 2026, Jana Partners (Trades, Portfolio)' portfolio included 11 stocks. The top holdings were:

17.96% in Mercury Systems Inc (NASDAQ:MRCY) 15.29% in The Cooper Companies Inc (NASDAQ:COO) 14.84% in Fiserv Inc (NASDAQ:FISV) 13.4% in State Street SPDR S&P 500 ETF Trust (SPY) 12.69% in Lamb Weston Holdings Inc (NYSE:LW)Jana Partners' Strategic Moves: Fiserv Inc. Takes Center Stage with a 7.33% Portfolio Impact·us.finance.gurufocus

The holdings are mainly concentrated in six of the 11 industries: Technology, Industrials, Healthcare, Consumer Defensive, Financial Services, and Consumer Cyclical.Jana Partners' Strategic Moves: Fiserv Inc. Takes Center Stage with a 7.33% Portfolio Impact·us.finance.gurufocus

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