HOLOGIC INC
Total Trades
37
Buys
1
Sells
22
Largest Trade
N/A
Insiders
13
Institutional Funds
639
Inst. Value
$1M+
Activist Filings
13
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Stamoulis Christiana | Director | EXERCISE | $100K–$500K | 7K | $36.04 | Oct 22, 2025 |
| Stamoulis Christiana | Director | SELL | $500K+ | 7K | $73.07 | Oct 22, 2025 |
| MACMILLAN STEPHEN P | Chairman | SELL | $1M+ | 138K | $66.97 | Sep 23, 2025 |
| MACMILLAN STEPHEN P | Chairman | EXERCISE | $1M+ | 138K | $39.96 | Sep 23, 2025 |
| Madaus Martin D | Director | BUY | $100K–$500K | 5K | $55.24 | May 9, 2025 |
| Oberton Karleen Marie | CFO | SELL | $1M+ | 53K | $80.56 | Sep 3, 2024 |
| Oberton Karleen Marie | CFO | EXERCISE | $1M+ | 33K | $40.95 | Sep 3, 2024 |
| MACMILLAN STEPHEN P | Chairman | EXERCISE | $1M+ | 44K | $26.21 | Aug 1, 2024 |
| MACMILLAN STEPHEN P | Chairman | SELL | $1M+ | 44K | $81.70 | Aug 1, 2024 |
| Oberton Karleen Marie | CFO | SELL | $1M+ | 15K | $75.00 | Jan 30, 2024 |
| Dockendorff Charles J | Director | SELL | $1M+ | 16K | $72.00 | Jan 4, 2024 |
| Dockendorff Charles J | Director | EXERCISE | $100K–$500K | 8K | $38.44 | Jan 4, 2024 |
| MACMILLAN STEPHEN P | Chairman | SELL | $1M+ | 48K | $70.41 | Dec 1, 2023 |
| MACMILLAN STEPHEN P | Chairman | EXERCISE | $1M+ | 48K | $26.21 | Dec 1, 2023 |
| Mitchell Essex D | Div. President | SELL | $500K+ | 8K | $71.85 | Nov 24, 2023 |
| GARRETT SCOTT T | Director | SELL | $500K+ | 10K | $79.72 | Jun 20, 2023 |
| Mitchell Essex D | Div. President | SELL | $100K–$500K | 2K | $83.73 | May 9, 2023 |
| COHN BENJAMIN JORDAN | Principal Accounti… | EXERCISE | $100K–$500K | 9K | $40.97 | Feb 9, 2023 |
| COHN BENJAMIN JORDAN | Principal Accounti… | SELL | $500K+ | 9K | $85.28 | Feb 9, 2023 |
| Hellmann Elisabeth A | SVP, Human Resources | SELL | $100K–$500K | 2K | $76.40 | Dec 16, 2022 |
| MACMILLAN STEPHEN P | Chairman | SELL | $1M+ | 34K | $75.65 | Dec 2, 2022 |
| Thornal Kevin R | Group Pres | SELL | $1M+ | 19K | $75.32 | Nov 17, 2022 |
| Thornal Kevin R | Group Pres | EXERCISE | $500K+ | 12K | $40.85 | Nov 17, 2022 |
| Griffin John M. | General Counsel | SELL | $1M+ | 27K | $76.12 | Nov 16, 2022 |
| Griffin John M. | General Counsel | EXERCISE | $1M+ | 27K | $40.85 | Nov 16, 2022 |
| MACMILLAN STEPHEN P | Chairman | EXERCISE | $1M+ | 95K | $26.21 | Nov 14, 2022 |
| MACMILLAN STEPHEN P | Chairman | SELL | $1M+ | 138K | $75.71 | Nov 14, 2022 |
| Oberton Karleen Marie | CFO | EXERCISE | $500K+ | 15K | $38.78 | Nov 3, 2022 |
| Oberton Karleen Marie | CFO | SELL | $1M+ | 15K | $72.50 | Nov 3, 2022 |
| Oberton Karleen Marie | CFO | GRANT | N/A | 21K | — | Nov 3, 2022 |
| Verstreken Jan | Group President | SELL | $500K+ | 7K | $78.80 | May 19, 2022 |
| COHN BENJAMIN JORDAN | Principal Accounti… | SELL | $100K–$500K | 4K | $78.75 | May 19, 2022 |
| COHN BENJAMIN JORDAN | Principal Accounti… | EXERCISE | $100K–$500K | 4K | $40.85 | May 19, 2022 |
| COHN BENJAMIN JORDAN | Principal Accounti… | SELL | $500K+ | 7K | $75.49 | May 17, 2022 |
| COHN BENJAMIN JORDAN | Principal Accounti… | EXERCISE | $100K–$500K | 7K | $39.39 | May 17, 2022 |
| COHN BENJAMIN JORDAN | Principal Accounti… | SELL | $100K–$500K | 2K | $74.18 | May 5, 2022 |
| Daugherty Sean S. | Group President | SELL | $100K–$500K | 2K | $71.14 | Feb 28, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 639 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| STATE STREET CORP | 9.9M | $1M+ | SH |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | 9.4M | $1M+ | SH |
| HBK INVESTMENTS L P | 8.4M | $1M+ | SH |
| VICTORY CAPITAL MANAGEMENT INC | 5.3M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 5.2M | $1M+ | SH |
| Pentwater Capital Management LP | 4.2M | $1M+ | SH |
| NORGES BANK | 3.8M | $1M+ | SH |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 3.0M | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 2.1M | $1M+ | SH |
| EARNEST PARTNERS LLC | 1.9M | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 1.8M | $1M+ | SH |
| TUDOR INVESTMENT CORP ET AL | 1.6M | $1M+ | SH |
| ALLIANCEBERNSTEIN L.P. | 1.4M | $1M+ | SH |
| RENAISSANCE TECHNOLOGIES LLC | 1.3M | $1M+ | SH |
| TIG Advisors, LLC | 1.2M | $1M+ | SH |
| Squarepoint Ops LLC | 1.0M | $1M+ | SH |
| MACKENZIE FINANCIAL CORP | 1.0M | $1M+ | SH |
| Neuberger Berman Group LLC | 941K | $1M+ | SH |
| AMERICAN CENTURY COMPANIES INC | 878K | $1M+ | SH |
| SOROS FUND MANAGEMENT LLC | 876K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
T. Rowe Price Investment Management, Inc.
SC 13G/A · Nov 14, 2025
9.7%
21.6M shares
T. Rowe Price Investment Management, Inc.
SC 13G/A · Jul 8, 2025
10.8%
24.1M shares
SC 13G/A · Apr 17, 2025
8.9%
19.9M shares
T. Rowe Price Investment Management, Inc.
SC 13G/A · Feb 14, 2025
7.9%
17.9M shares
T. Rowe Price Investment Management, Inc. 85-4328500
SC 13G/A · Nov 14, 2024
9.5%
22.1M shares
T. Rowe Price Investment Management, Inc. 85-4328500
SC 13G · Feb 14, 2024
9.2%
22.1M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
11.5%
27.7M shares
SC 13G/A · Jan 8, 2024
10.1%
24.3M shares
T. Rowe Price Investment Management, Inc. 85-4328500
SC 13G · Feb 14, 2023
9.5%
23.4M shares
SC 13G/A · Jan 24, 2023
9.6%
23.5M shares
T. ROWE PRICE ASSOCIATES, INC. 52-0556948
SC 13G/A · Aug 10, 2022
3.1%
7.9M shares
T. ROWE PRICE ASSOCIATES, INC. 52-0556948
SC 13G/A · Feb 14, 2022
16.4%
41.3M shares
SC 13G/A · Feb 1, 2022
8.7%
21.9M shares