Who Owns Hologic? Top Shareholders and Recent Insider Trades

Hologic (NASDAQ: HOLX) is a medical technology company focused on diagnostics, imaging, and surgical solutions, with a strong emphasis on women’s health. Shares recently traded around $75 per share, giving the company a market capitalization of roughly $16.6B.

Looking at who owns Hologic and recent insider trades helps show how large institutions, hedge funds, and company leadership may be approaching the stock today.

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Who Are Hologic’s Top Shareholders?

Hologic’s shareholder base is led by major institutional investors that tend to hold through market cycles, which can help support long-term ownership stability. Several active managers trimmed positions last quarter, while a smaller group added meaningfully. For investors, this mix suggests institutional support remains intact, even as conviction among active funds appears more selective at current valuation levels.

• The Vanguard Group: 26,112,429 shares (11.71%), ~$1.95B value. Cut 587,955 shares (-2.20%).
• T. Rowe Price Investment Management: 21,549,648 shares (9.66%), ~$1.61B value. Cut 2,533,649 shares (-10.52%).
• BlackRock Institutional Trust Company: 12,435,419 shares (5.57%), ~$926.3M value. Cut 516,216 shares (-3.99%).
• Manulife Investment Management (North America): 10,450,448 shares (4.68%), ~$778.5M value. Cut 572,007 shares (-5.19%).
• State Street Investment Management: 9,976,767 shares (4.47%), ~$743.2M value. Cut 122,097 shares (-1.21%).
• Geode Capital Management: 5,896,994 shares (2.64%), ~$439.3M value. Added 68,669 shares (+1.18%).
• Victory Capital Management: 5,470,045 shares (2.45%), ~$407.5M value. Cut 28,864 shares (-0.52%).
• Invesco Advisers: 4,364,566 shares (1.96%), ~$325.1M value. Added 35,557 shares (+0.82%).
• Black Creek Investment Management: 3,743,345 shares (1.68%), ~$278.8M value. Cut 284,484 shares (-7.06%).
• Citadel Advisors: 2,996,619 shares (1.34%), ~$223.2M value. Cut 712,328 shares (-19.21%).
• Millennium Management: 2,918,503 shares (1.31%), ~$217.4M value. Added 1,949,741 shares (+201.26%).

Hedge Fund Highlights

Jane Street Group, co-founded by Rob Granieri, sharply increased its Hologic position last quarter, boosting holdings by over 1,000%. The firm now holds roughly $62M value, which suggests it may be leaning more constructively on near-term price dynamics or volatility conditions.

Balyasny Asset Management, founded by Dmitry Balyasny, also made a notable move, increasing its stake by over 1,000% to approximately $82M value. The size and speed of the increase suggest it appears to be a higher-conviction position relative to prior quarters.

Millennium Management, led by Israel Englander, expanded its Hologic exposure by about 201%, bringing total holdings to nearly $197M value. Given Millennium’s multi-strategy approach, this increase may reflect a more favorable risk-reward setup rather than a purely long-term directional call.

Bridgewater Associates, founded by Ray Dalio, raised its position by roughly 222%, though the overall stake remains modest at around $1.6M value. This looks incremental, but it may indicate growing comfort with Hologic’s earnings profile and balance sheet resilience.

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Hologic’s Recent Insider Trades

Insider trades can offer useful context on how executives and directors may be managing personal exposure. Recent filings for Hologic show mostly small transactions that lean toward selling.

• Stephen P. MacMillan: Sold ~$498k; acquired ~$12.6M; sold ~$3.7M.
• Karleen Marie Oberton: Sold ~$108k; acquired ~$3.3M; sold ~$699k.
• Essex D. Mitchell: Sold ~$127k; acquired ~$3.5M.
• Jennifer M. Schneiders: Sold ~$52k; acquired ~$2.3M.
• Anne M. Liddy: Sold ~$30k; acquired ~$1.3M.
• Brandon Schnittker: Sold ~$22k; acquired ~$903k.
• Benjamin Jordan Cohn: Sold ~$13k; acquired ~$376k.
• Jan Verstreken: Sold ~$13k; acquired ~$1.25M.
• Mark Horvath: Acquired ~$1.0M.

For investors, these transactions appear mixed and relatively small compared with overall ownership, suggesting insider activity may be more about managing exposure than signaling a strong directional view.

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What the Ownership & Insider Trade Data Tell Us

Hologic’s ownership base remains anchored by large passive institutions, providing stability even as some active managers trim positions. Hedge fund positioning shows a wide range of views, with several funds adding aggressively while others reduce exposure. Insider activity appears cautious, with limited net buying and several modest sales.

For investors, this combination suggests Hologic continues to be supported by long-term institutional capital, but both insiders and active funds appear measured at current valuation levels as expectations look more balanced in the near term.

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