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EdgarHawk

JANA Partners Management, LP

Director

Director 10% Owner

Latest: Director buying · April 2026

14 filings analyzed · 4 companies · Latest 2026-04-15

Companies

Company Buys Sells Direction
Lamb Weston Holdings, Inc. LW 4 0 Net buying
MERCURY SYSTEMS INC MRCY 1 8 Net selling
TreeHouse Foods, Inc. THS 4 1 Net buying
Rapid7, Inc. RPD 6 0 Net buying

Activity

April 2026
high
Buy
150,000 shares
$6,371,500
Significance 6/10

JANA Partners acquired 150,000 shares at blended $42.48 (2 transactions totaling $6.4M); clustering with 2 other insider buys in 14 days

JANA Partners Management, LP executed 2 separate purchases totaling 150,000 shares (150.0K shares) for $6,371,500.00 ($6.4M) at blended average price $42.48 on April 13 and April 15, 2026, increasing holdings from 5,248,980 shares (5.25M shares) to 5,398,980 shares (5.40M). The current price of $43.17 is -35.2% from the 52-week high of $66.57, representing significant drawdown from prior peak. A cluster pattern is present: 2 other insiders also bought within the past 14 days, indicating coordinated or at least parallel director activity at the company level. The cross-ticker TRACK RECORD shows mixed timing discipline (12 prior buys, 30% 90-day win rate; 8 prior sells, 0.00% well-timed rate), and same-ticker history at LW includes 2 prior buys on April 7 and April 8 with outcomes not yet measurable. This filing warrants monitoring for the underlying business signals behind synchronized director accumulation.

medium
Buy
236,000 shares
$9,702,040
Significance 6/10

Director JANA Partners bought 236,000 shares totaling $9.7M across 2 days at avg $41.11; price now $41.61, down 37.5% from 52-week high

JANA Partners Management, LP filed a 2-transaction purchase of 236,000 shares (236.0K shares) for $9,702,040.00 ($9.7M) on April 7–8, 2026, executed at prices of $40.89 and $41.41, yielding a blended average of $41.11. The current price of $41.61 sits near the execution band but represents a -37.5% decline from the 52-week high of $66.57. Notably, a cluster pattern exists: 2 other insiders also purchased within the past 14 days, suggesting concurrent director-level conviction. The director's cross-ticker track record shows 11 prior open-market buys with a 90-day win rate of 36.36% and an average 90-day return of -11.1%, indicating limited predictive power in prior windows. The stock's recent 30-day return of -6.4% and modest 90-day return of +0.6%, combined with flat annual revenue growth of -0.2% and a P/E of 19.18, suggest a market searching for direction rather than a deeply depressed entry point.

March 2026
2026-03-04 MERCURY SYSTEMS INC MRCY
high
Sell
452,057 shares
$41,412,246
Significance 6/10

JANA Partners liquidates 452,057 shares (9.9% stake reduction) at avg $91.61, netting $41.4M across 3 sales in March 2026

JANA Partners Management, LP, a director at Mercury Systems, conducted 3 separate sales totaling 452,057 shares for $41,412,245.58 over March 2–4, 2026, reducing holdings from 4.57M to 4.11M shares (−9.9%). The blended average sale price of $91.61 occurred as the stock traded near the low end of its 52-week range, currently at $89.18 (−13.4% from the 52-week high of $103.02). Mercury Systems reported negative net income of $-15,095,000.00 on revenue of $232,872,000.00 in the latest quarter and was unprofitable over its most recent full fiscal year, creating a backdrop of financial stress. Examining JANA's prior sales at Mercury Systems specifically: the insider has executed 5 prior sales on this ticker, achieving negative 90-day returns in only 0 of 4 measurable outcomes, meaning all 4 prior sales were followed by stock gains—a pattern of poor sell timing at this specific holding. The current sale's timing relative to near-52-week-low pricing and deteriorating profitability, set against the prior track record of unfavorable exits at this ticker, presents a material signal warranting scrutiny of the underlying business trajectory.

February 2026
2026-02-11 MERCURY SYSTEMS INC MRCY
high
Sell
400,000 shares
$32,400,000
Significance 6/10

JANA Partners (MRCY Director) sells 400,000 shares ($32.4M) at $81.00; stock down 22.0% from 52-week high, unprofitable company.

JANA Partners sold 400,000 shares of MERCURY SYSTEMS for $32,400,000.00 at $81.00 on 2026-02-09, reducing its stake by 8.1% to 4,566,675 shares. The sale occurs as the stock trades 22.0% below its 52-week high and has declined 17.2% over the prior 30 days, while the underlying company reported a net loss of $-15,095,000.00 in its most recent quarter despite revenue growth of 9.2% annually. JANA's prior five trades at MERCURY SYSTEMS show a mixed timing pattern: three consecutive sales in May and August 2025 captured strong 30-day gains (+14.8%, +15.8%, +10.4%), but only 1 of 5 prior trades were well-timed at the 90-day mark, and the most recent sale on 2025-11-06 saw the stock decline just 6.4% over 30 days before rising. This sale represents a material reduction in exposure from a significant shareholder, occurring in an environment of both price weakness and operating losses.

high
Sell
1,959,221 shares
$47,961,730
Significance 7/10

JANA Partners sold 1,959,221 shares (1.96M) of THS at $24.48 for $47,961,730.08 ($48.0M), reducing stake by -33.7%.

JANA Partners, a director at TreeHouse Foods, executed a substantial open-market sale of 1,959,221 shares at $24.48 on 2026-02-10, reducing holdings from 5,821,337 to 3,862,116 shares and raising $47,961,730.08. The sale occurs at a price -28.7% below the 52-week high of $34.28, within a weak fundamental backdrop: the company posted a net loss of $-265,800,000.00 on revenue of $840,300,000.00 in the latest quarter and faced -2.3% annual revenue decline. Reviewing JANA Partners' cross-ticker track record, prior sales averaged +11.2% return at 90 days with a 0.00% well-timed rate—none of the five prior sells preceded declines—suggesting a pattern of poorly timed exits. At TreeHouse specifically, JANA Partners' four prior buys in May 2025 all underperformed within 90 days (ranging -12.4% to -24.6%), indicating poor execution in accumulating this name. The current sale represents a substantial drawdown of a historically underperforming position in a company reporting material losses, warranting investor scrutiny of both the director's exit logic and the company's operational trajectory.

December 2025
2025-12-04 Rapid7, Inc. RPD
medium
Buy
41,545 shares
$652,672
Significance 4/10

JANA Partners (Director) bought 41,545 shares of RPD at $15.71 on 2025-11-28; stock now $16.12, down -63.3% from 52-week high.

JANA Partners purchased 41,545 shares at $15.71 on 2025-11-28, a modest addition (0.6%) to its 6.76M-share position in Rapid7. The purchase occurs amid significant price weakness: the stock trades $16.12, down -20.7% over 90 days and -63.3% from its 52-week high of $43.94. At the same-ticker level, JANA's prior 3 measurable buys at RPD all posted negative 90-day returns (ranging from -8.0% to -33.2%), with 0 of 3 well-timed at the 90-day mark. A cluster pattern is present—4 other insiders also bought within the past 14 days—but this does not alter the fact that JANA's own track record at this security shows a pattern of purchases followed by declines. The company's fundamentals remain modest (P/E 55.59, annual revenue growth +8.5%), and near-term price momentum is weak (-9.4% over 30 days).

November 2025
2025-11-25 Rapid7, Inc. RPD
medium
Buy
200,000 shares
$2,870,000
Significance 5/10

Jana Partners bought 200,000 RPD shares for $2,870,000 over 2 days; stock down 65.1% from 52-week high, with same-ticker history showing 3 prior buys all underwater.

JANA Partners, a director at Rapid7, executed 2 purchases totaling 200,000 shares for $2,870,000 at a blended average price of $14.35 on 2025-11-24 and 2025-11-25. The current price of $15.33 represents a recovery of $0.98 per share since the transactions, but the stock remains down 65.1% from its 52-week high of $43.94 and has fallen 20.1% over the past 30 days. JANA's prior transaction history at RPD consists of 3 buys from August 2025, each of which showed negative returns by the 90-day mark (-33.2%, -30.0%, and -22.1% respectively). Additionally, 3 other insiders also bought within the past 14 days, forming a cluster pattern. The filing warrants attention given the pattern of persistent underwater positions from prior same-ticker purchases, despite the timing coincidence with peer insider activity.

2025-11-10 MERCURY SYSTEMS INC MRCY
medium
Sell
1,000,000 shares
$75,450,000
Significance 6/10

Director JANA Partners sold 1,000,000 shares of MRCY at $75.45 ($75.4M); post-sale stake 4.97M shares, -16.8% reduction.

JANA Partners Management, LP sold 1,000,000 shares at $75.45, reducing its stake from 5.97M to 4.97M shares in a single transaction. The sale occurred near the stock's recent range with the current price at $74.65, about 11 days post-transaction. At MRCY specifically, JANA has executed 5 prior trades: two recent sells (May 2025 and August 2025) and two earlier buys (2024), with a 50% timing success rate at the 90-day mark. The broader cross-ticker track record shows only 3 prior sales with a 0% well-timed rate (average 90d return +15.6%), indicating JANA's past sales typically preceded stock appreciation rather than declines. Mercury Systems is currently unprofitable on a full-year basis despite +9.2% annual revenue growth, making the financial context a factor in evaluating the sale's significance.

August 2025
2025-08-15 MERCURY SYSTEMS INC MRCY
high
Sell
797,000 shares
$52,139,740
Significance 7/10

JANA Partners sells 797,000 MRCY shares ($52.1M) at $65.42; retains 5.96M shares. Stock up +29.1% in 30d, +44.6% in 90d.

JANA Partners, a director holding 5.96M shares post-sale, sold 797,000 shares (11.8% of prior holdings) at $65.42 as MRCY stock surged +29.1% over 30 days and +44.6% over 90 days. The company remains unprofitable with net income of $-19.2M on quarterly revenue of $211.4M, and trades at a P/E of 115.00. At MRCY specifically, JANA's prior two sales (2025-05-09 and 2025-05-08) both showed strong positive 90-day returns (+14.7% and +16.6%), suggesting the insider has not historically sold ahead of declines at this stock. The current sale occurs at $65.42 against a 52-week high of $68.39, within 2.5% of the peak, following a sharp recent rally rather than at depressed valuations.

2025-08-13 Rapid7, Inc. RPD
high
Buy
772,194 shares
$15,135,356
Significance 7/10

JANA Partners bought 772,194 shares across 3 transactions for $15,135,355.66 at RPD, raising stake to 6,518,604 shares (+13.4%)

JANA Partners Management, LP, a director at Rapid7, executed 3 separate purchases totaling 772,194 shares for $15,135,355.66 between August 11–13, 2025, at prices ranging from $18.23 to $21.26, with a blended average price of $19.60. This increased the investor's total holdings by 13.4% to 6,518,604 shares. The purchases occur while the stock is trading at $21.32, down 51.5% from its 52-week high of $43.94, and have declined 9.5% over the past 90 days. The accumulation is material in both absolute dollar amount ($15.1M) and relative scale (13.4% increase in holdings), marking a significant expansion of the fund's position in a company with a market cap of $1,380,383,611.36 and a P/E ratio of 54.67. Investors should note that this multi-transaction purchase pattern and the fund's track record (15 prior open-market buys at various tickers averaging -3.2% 90-day return, with a 40.00% 90-day win rate) provide context for evaluating whether this stake increase reflects conviction or follows the fund's typical investment rhythm.

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