Save your place

Sign in to WhoBought

Please try again later.

Hologic, Inc. (HOLX) institutional ownership

Market cap$16.9B SectorHealthcare
Funds holding · Q1 2026
671
reported HOLX position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Activity unavailable N/A
337 buyers · 334 sellers

Hologic, Inc. (HOLX) price and institutional activity

Dates

Q1 2026

$0 bought by 337 investors
Glazer Capital, LLCO'Connor Alternative Investments LLC +335 more
$0 sold by 334 investors
Manufacturers Life Insurance Company, theT. Rowe Price Investment Management, Inc. +332 more
Bought Sold Totals per quarter; hover a bar for the names.

Hologic, Inc. (HOLX) institutional activity · 671

Investor Type Est. change Change Δ Own Date
Manufacturers Life Insurance Company, the · Reduced
Change −9.3M Date Q1 2026
Manufacturers Life Insurance Company, the Reduced· Q1 2026 −9.3M Q1 2026
T. Rowe Price Investment Management, Inc. · Exited
Change −5.9M Δ Own −100.0% Date Q1 2026
T. Rowe Price Investment Management, Inc. Exited· Q1 2026 −5.9M −100.0% Q1 2026
Victory Capital Management Inc · Reduced
Change −5.5M Date Q1 2026
Victory Capital Management Inc Reduced· Q1 2026 −5.5M Q1 2026
Norges · Exited
Change −3.8M Δ Own −100.0% Date Q1 2026
Norges Exited· Q1 2026 −3.8M −100.0% Q1 2026
Glazer Capital, LLC · Added
Change +3.2M Date Q1 2026
Glazer Capital, LLC Added· Q1 2026 +3.2M Q1 2026
O'Connor Alternative Investments LLC · New
Change +3.1M Date Q1 2026
O'Connor Alternative Investments LLC New· Q1 2026 +3.1M Q1 2026
Balyasny Asset Management L.P. · Added
Change +3.1M Date Q1 2026
Balyasny Asset Management L.P. Added· Q1 2026 +3.1M Q1 2026
Fil Ltd · Added
Change +2.6M Date Q1 2026
Fil Ltd Added· Q1 2026 +2.6M Q1 2026
Millennium Management LLC · Added
Change +2.2M Date Q1 2026
Millennium Management LLC Added· Q1 2026 +2.2M Q1 2026
UBS Group AG · Added
Change +2.0M Date Q1 2026
UBS Group AG Added· Q1 2026 +2.0M Q1 2026
Dimensional · Reduced
Change −1.9M Date Q1 2026
Dimensional Reduced· Q1 2026 −1.9M Q1 2026
JPMorgan Chase & Co · Added
Change +1.6M Date Q1 2026
JPMorgan Chase & Co Added· Q1 2026 +1.6M Q1 2026
Hbk Investments L P · Added
Change +1.4M Date Q1 2026
Hbk Investments L P Added· Q1 2026 +1.4M Q1 2026
Syquant Capital Sas · Added
Change +1.4M Date Q1 2026
Syquant Capital Sas Added· Q1 2026 +1.4M Q1 2026
Renaissance Technologies LLC Exited· Q1 2026 −1.3M −100.0% Q1 2026
Data through Q1 2026 · filed Jun 3, 2026
15 of 671

Famous investor activity in Hologic, Inc. (HOLX)

Hologic, Inc. (HOLX) insider trading

Company insiders, action and economics first; trade and filed dates last.
Dates
Insider Title Type Price Qty Value Owned ΔOwn Trade date Filed date
Verstreken Jan · Officer 12 operations -332K
Owned 0 Trade date Apr 7, 2026 Filed date Apr 9, 2026
Verstreken Jan Officer 12 operations -332K 0 Apr 7, 2026 Apr 9, 2026
Verstreken Jan · Officer Grant (A) 31K
Owned 31K Trade date Apr 7, 2026 Filed date Apr 9, 2026
Verstreken Jan Officer Grant (A) 31K 31K Apr 7, 2026 Apr 9, 2026
Schnittker Brandon · Officer 7 operations -48K
Owned 0 Trade date Apr 7, 2026 Filed date Apr 9, 2026
Schnittker Brandon Officer 7 operations -48K 0 Apr 7, 2026 Apr 9, 2026
Schnittker Brandon · Officer Grant (A) 8K
Owned 8K Trade date Apr 7, 2026 Filed date Apr 9, 2026
Schnittker Brandon Officer Grant (A) 8K 8K Apr 7, 2026 Apr 9, 2026
Schneiders Jennifer M. · Officer 6 operations -101K
Owned 0 Trade date Apr 7, 2026 Filed date Apr 9, 2026
Schneiders Jennifer M. Officer 6 operations -101K 0 Apr 7, 2026 Apr 9, 2026
Schneiders Jennifer M. · Officer Grant (A) 23K
Owned 23K Trade date Apr 7, 2026 Filed date Apr 9, 2026
Schneiders Jennifer M. Officer Grant (A) 23K 23K Apr 7, 2026 Apr 9, 2026
Oberton Karleen Marie · CFO 8 operations -347K
Owned 0 Trade date Apr 7, 2026 Filed date Apr 9, 2026
Oberton Karleen Marie CFO 8 operations -347K 0 Apr 7, 2026 Apr 9, 2026
Oberton Karleen Marie · CFO Grant (A) 43K
Owned 43K Trade date Apr 7, 2026 Filed date Apr 9, 2026
Oberton Karleen Marie CFO Grant (A) 43K 43K Apr 7, 2026 Apr 9, 2026
Mitchell Essex D. · Officer 6 operations -196K
Owned 0 Trade date Apr 7, 2026 Filed date Apr 9, 2026
Mitchell Essex D. Officer 6 operations -196K 0 Apr 7, 2026 Apr 9, 2026
Mitchell Essex D. · Officer Grant (A) 46K
Owned 46K Trade date Apr 7, 2026 Filed date Apr 9, 2026
Mitchell Essex D. Officer Grant (A) 46K 46K Apr 7, 2026 Apr 9, 2026
Liddy Anne M. · Officer 9 operations -69K
Owned 0 Trade date Apr 7, 2026 Filed date Apr 9, 2026
Liddy Anne M. Officer 9 operations -69K 0 Apr 7, 2026 Apr 9, 2026
Liddy Anne M. · Officer Grant (A) 3K
Owned 3K Trade date Apr 7, 2026 Filed date Apr 9, 2026
Liddy Anne M. Officer Grant (A) 3K 3K Apr 7, 2026 Apr 9, 2026
Horvath Mark W. · Officer 8 operations -51K
Owned 0 Trade date Apr 7, 2026 Filed date Apr 9, 2026
Horvath Mark W. Officer 8 operations -51K 0 Apr 7, 2026 Apr 9, 2026
Horvath Mark W. · Officer Grant (A) 8K
Owned 8K Trade date Apr 7, 2026 Filed date Apr 9, 2026
Horvath Mark W. Officer Grant (A) 8K 8K Apr 7, 2026 Apr 9, 2026
De Walt Diana · Officer Shares transferred outside the market (D), often for tax or as a gift, not a market sale -8K
Owned 0 Trade date Apr 7, 2026 Filed date Apr 9, 2026
De Walt Diana Officer Shares transferred outside the market (D), often for tax or as a gift, not a market sale -8K 0 Apr 7, 2026 Apr 9, 2026
15 of 82
15 of 82 Sign in to continue to older insider transactions.

Hologic, Inc. (HOLX) activist and large shareholders

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
Vanguard Group Inc 27.7M
% of shares outstanding 11.5% Filing date Feb 13, 2024
Vanguard Group Inc 27.7M 11.5% Feb 13, 2024
BlackRock Inc. 24.3M
% of shares outstanding 10.1% Filing date Jan 8, 2024
BlackRock Inc. 24.3M 10.1% Jan 8, 2024
T. Rowe Price Investment Management, Inc. 22.1M
% of shares outstanding 9.5% Filing date Nov 14, 2024
T. Rowe Price Investment Management, Inc. 22.1M 9.5% Nov 14, 2024
Vanguard Capital Management 16.7M
% of shares outstanding 7.5% Filing date Apr 30, 2026
Vanguard Capital Management 16.7M 7.5% Apr 30, 2026
FMR LLC 9.0M
% of shares outstanding 3.6% Filing date Feb 9, 2022
FMR LLC 9.0M 3.6% Feb 9, 2022
T. Rowe Price Associates 7.9M
% of shares outstanding 3.1% Filing date Aug 10, 2022
T. Rowe Price Associates 7.9M 3.1% Aug 10, 2022
6 of 6

Hologic, Inc. (HOLX) ownership FAQ

Who owns HOLX?

671 reporting institutions disclosed HOLX position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.