SEC ownership of HOLOGIC INC

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000859737.

Comparable stake leader

BlackRock, Inc.

Disclosed value leader

BlackRock, Inc.

Comparable rows

50/50

Latest evidence

31 Mar 2026

Top shareholders Insider holders Latest transactions
Parsed ownership sources
13F and 13D/G
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
Largest SEC-reported holder
BlackRock, Inc.
Ranking: Comparable ownership first, then disclosed value
Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
50 of 50
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
BlackRock, Inc.
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
31 Mar 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0000859737
Issuer location
Marlborough, MA

Ownership snapshot

Top shareholders of HOLOGIC INC (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
31 Mar 2026
13F 13D/G Lead comparable stake: 8.9% 13D/G row: BlackRock, Inc. Showing 1-8 of 50 holder rows.

Quick read

BlackRock, Inc. leads the comparable SEC ownership view at 8.9%.

50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens BlackRock, Inc.'s linked filing trail.
Comparable ownership Top 5
BlackRock, Inc. 8.9%
T. Rowe Price Investment Manageme... 2.7%
VANGUARD CAPITAL MANAGEMENT LLC 6.6%
STATE STREET CORP 4.5%
HBK INVESTMENTS L P 4.5%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 50 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
BlackRock, Inc.
13F 13D/G
Company
13F 13D/G
8.9%
from 13D/G
$1,702,320,349
22,520,444 shares
 — 31 Mar 2026
T. Rowe Price Investment Management, Inc.
13D/G
13D/G
2.7%
$441,897,101
5,932,301 shares
 -$1,163,389,513 31 Dec 2025
VANGUARD CAPITAL MANAGEMENT LLC
13F
Company
13F
6.6%
$1,096,350,859
14,503,914 shares
 — 31 Mar 2026
STATE STREET CORP
13F
Company
13F
4.5%
$755,212,585
9,990,906 shares
 — 31 Mar 2026
HBK INVESTMENTS L P
13F
Company
13F
4.5%
$740,782,000
9,800,000 shares
 — 31 Mar 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
Company
13F
4.4%
$727,221,154
9,620,600 shares
 — 31 Mar 2026
FIL Ltd
13F
Company
13F
3.6%
$591,233,308
7,821,581 shares
 — 31 Mar 2026
GEODE CAPITAL MANAGEMENT, LLC
13F
Company
13F
2.8%
$456,297,563
6,058,845 shares
 — 31 Mar 2026
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Net insider flow leans to selling over the last 12 months. Net value: -$9,806,982.

Buys
$0
Insiders: 0
Sells
$9,806,982
Insiders: 2
Net
-$9,806,982
Shares: -145,760
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 145,760
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 0 $0 $0 $0
3-6 0 0 $0 $0 $0
6-9 0 145,760 $0 $9,806,982 -$9,806,982
9-12 0 0 $0 $0 $0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-20 of 27 reporting-owner rows connected to HOLOGIC INC. Open a relationship link for the CIK-to-CIK filing trail.

Rows
27
Largest Forms 3/4/5 holder
John M. Griffin
Net 12M change
-$9,806,982
Latest report
07 Apr 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
John M. Griffin General Counsel $14,152,136 Mixed 14 Nov 2024
Sally Crawford Director $10,156,022 Filing P/S 07 Mar 2024
Kevin R. Thornal Group Pres, Global Diagnostics $4,490,496 Mixed 15 Nov 2022
Scott T. Garrett Director $3,670,131 Filing P/S 14 Mar 2024
Sean S. Daugherty Group President, BSH & Surg. $3,534,552 Mixed 24 Feb 2022
Erik S. Anderson Div. Pres., Breast & Skeletal $1,801,332 Mixed 14 Nov 2024
Namal Nawana Director $1,311,912 Mixed 09 Mar 2023
Peter Paul Dunne SVP, Human Resources $766,296 Mixed 13 Dec 2023
Elisabeth A. Hellmann SVP, Human Resources $689,328 Mixed 14 Nov 2023
Benjamin Jordan Cohn Principal Accounting Officer $0 Mixed 07 Apr 2026
Ludwig Hantson Director $0 Mixed 07 Apr 2026
Essex D. Mitchell Chief Operating Officer $0 Mixed 07 Apr 2026
Amy McBride Wendell Director $0 Mixed 07 Apr 2026
Jennifer M. Schneiders President, Diag. Solutions $0 Mixed 07 Apr 2026
Stephen P. Macmillan Chairman, President and CEO, Director $0 -$9,266,118 -100% Mixed 07 Apr 2026
Christiana Stamoulis Director $0 -$540,864 -100% Mixed 07 Apr 2026
Brandon Schnittker President, GYN Surgical $0 Mixed 07 Apr 2026
Diana de Walt SVP, Human Resources $0 Mixed 07 Apr 2026
Jan Verstreken Group President, International $0 Mixed 07 Apr 2026
Mark W. Horvath President, Breast & Skeletal $0 Mixed 07 Apr 2026

Recent insider transactions for HOLOGIC INC

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
Jan Verstreken HOLX Common Stock Disposed to Issuer -100% -134,039 0 07 Apr 2026 Direct
Jan Verstreken HOLX Performance Stock Units Disposed to Issuer -100% -31,409 0 07 Apr 2026 Direct
Jan Verstreken HOLX Performance Stock Units Award 31,409 31,409 07 Apr 2026 Direct
Jan Verstreken HOLX Non-qualified Stock Option (Right to Buy) Disposed to Issuer -100% -166,835 0 07 Apr 2026 Direct
Brandon Schnittker HOLX Common Stock Disposed to Issuer -100% -17,644 0 07 Apr 2026 Direct
Brandon Schnittker HOLX Performance Stock Units Disposed to Issuer -100% -8,432 0 07 Apr 2026 Direct
Brandon Schnittker HOLX Performance Stock Units Award 8,432 8,432 07 Apr 2026 Direct
Brandon Schnittker HOLX Non-qualified Stock Option (Right to Buy) Disposed to Issuer -100% -22,096 0 07 Apr 2026 Direct
Jennifer M. Schneiders HOLX Common Stock Disposed to Issuer -100% -41,462 0 07 Apr 2026 Direct
Jennifer M. Schneiders HOLX Performance Stock Units Disposed to Issuer -100% -22,598 0 07 Apr 2026 Direct
Jennifer M. Schneiders HOLX Performance Stock Units Award 22,598 22,598 07 Apr 2026 Direct
Jennifer M. Schneiders HOLX Non-qualified Stock Option (Right to Buy) Disposed to Issuer -100% -36,588 0 07 Apr 2026 Direct
Karleen Marie Oberton HOLX Common Stock Disposed to Issuer -100% -150,735 0 07 Apr 2026 Direct
Karleen Marie Oberton HOLX Performance Stock Units Disposed to Issuer -100% -42,707 0 07 Apr 2026 Direct
Karleen Marie Oberton HOLX Performance Stock Units Award 42,707 42,707 07 Apr 2026 Direct
Karleen Marie Oberton HOLX Non-qualified Stock Option (Right to Buy) Disposed to Issuer -100% -153,176 0 07 Apr 2026 Direct
Essex D. Mitchell HOLX Common Stock Disposed to Issuer -100% -77,694 0 07 Apr 2026 Direct
Essex D. Mitchell HOLX Performance Stock Units Disposed to Issuer -100% -46,154 0 07 Apr 2026 Direct
Essex D. Mitchell HOLX Performance Stock Units Award 46,154 46,154 07 Apr 2026 Direct
Essex D. Mitchell HOLX Non-qualified Stock Option (Right to Buy) Disposed to Issuer -100% -72,360 0 07 Apr 2026 Direct
Anne M. Liddy HOLX Common Stock Disposed to Issuer -100% -28,052 0 07 Apr 2026 Direct
Anne M. Liddy HOLX Performance Stock Units Disposed to Issuer -100% -3,452 0 07 Apr 2026 Direct
Anne M. Liddy HOLX Performance Stock Units Award 3,452 3,452 07 Apr 2026 Direct
Anne M. Liddy HOLX Non-qualified Stock Option (Right to Buy) Disposed to Issuer -100% -37,544 0 07 Apr 2026 Direct
Mark W. Horvath HOLX Common Stock Disposed to Issuer -100% -23,026 0 07 Apr 2026 Direct
Mark W. Horvath HOLX Performance Stock Units Disposed to Issuer -100% -7,762 0 07 Apr 2026 Direct
Mark W. Horvath HOLX Performance Stock Units Award 7,762 7,762 07 Apr 2026 Direct
Mark W. Horvath HOLX Non-qualified Stock Option (Right to Buy) Disposed to Issuer -100% -20,596 0 07 Apr 2026 Direct
Diana de Walt HOLX Common Stock Disposed to Issuer -100% -7,603 0 07 Apr 2026 Direct
Amy McBride Wendell HOLX Common Stock Disposed to Issuer -100% -25,784 0 07 Apr 2026 Direct
Amy McBride Wendell HOLX Non-qualified Stock Option (Right to Buy) Disposed to Issuer -100% -54,341 0 07 Apr 2026 Direct
Stacey D. Stewart HOLX Common Stock Disposed to Issuer -100% -8,358 0 07 Apr 2026 Direct
Stacey D. Stewart HOLX Non-qualified Stock Option (Right to Buy) Disposed to Issuer -100% -15,049 0 07 Apr 2026 Direct
Christiana Stamoulis HOLX Common Stock Disposed to Issuer -100% -50,526 0 07 Apr 2026 Direct
Christiana Stamoulis HOLX Non-qualified Stock Option (Right to Buy) Disposed to Issuer -100% -52,841 0 07 Apr 2026 Direct
Nanaz Mohtashami HOLX Common Stock Disposed to Issuer -100% -7,371 0 07 Apr 2026 Direct
Nanaz Mohtashami HOLX Non-qualified Stock Option (Right to Buy) Disposed to Issuer -100% -12,212 0 07 Apr 2026 Direct
Wayde D. McMillan HOLX Common Stock Disposed to Issuer -100% -4,932 0 07 Apr 2026 Direct
Wayde D. McMillan HOLX Non-qualified Stock Option (Right to Buy) Disposed to Issuer -100% -5,171 0 07 Apr 2026 Direct
Martin D. Madaus HOLX Common Stock Disposed to Issuer -100% -5,445 0 07 Apr 2026 Revocable Trust
Martin D. Madaus HOLX Common Stock Disposed to Issuer -100% -5,396 0 07 Apr 2026 Direct
Martin D. Madaus HOLX Non-qualified Stock Option (Right to Buy) Disposed to Issuer -100% -6,551 0 07 Apr 2026 Direct
Stephen P. Macmillan HOLX Common Stock Disposed to Issuer -100% -1,146,829 0 07 Apr 2026 MacMillan Family Trust
Stephen P. Macmillan HOLX Common Stock Disposed to Issuer -100% -1,423,837 0 07 Apr 2026 Direct
Stephen P. Macmillan HOLX Performance Stock Units Disposed to Issuer -100% -190,400 0 07 Apr 2026 Direct
Stephen P. Macmillan HOLX Performance Stock Units Award 190,400 190,400 07 Apr 2026 Direct
Stephen P. Macmillan HOLX Non-qualified Stock Option (Right to Buy) Disposed to Issuer -100% -1,976,751 0 07 Apr 2026 Direct
Ludwig Hantson HOLX Common Stock Disposed to Issuer -100% -16,146 0 07 Apr 2026 Direct
Ludwig Hantson HOLX Non-qualified Stock Option (Right to Buy) Disposed to Issuer -100% -40,486 0 07 Apr 2026 Direct
Charles J. Dockendorff HOLX Common Stock Disposed to Issuer -100% -15,370 0 07 Apr 2026 Revocable Trust
* marks a reported price that did not pass the local price check.
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