Latest Period
Q1 2026
Security Snapshot
HOLOGIC INC - Common Stock (HOLX) Institutional Ownership
CUSIP: 436440101
13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026
Institutions Reporting
700
Shares (Excl. Options)
215,304,012
Price
$75.59
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- Security type / class
- Equity / Common Stock
- Symbol
- HOLX
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 215,304,012
- Total 13F value
- $16,271,813,995
- Portfolio coverage rank
- 0.04%
- Share change
- -853,495
- Value change
- -$45,061,323
- Number of holders
- 700
- Shares outstanding
- 219,714,852
- SEC-reported price per share
- $75.59
- Insider filing price
- $75.59
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- HOLX - HOLOGIC INC - Common Stock is tracked under CUSIP 436440101.
- 700 institutions reported positions in Q1 2026.
- 2 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 747 to 700 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $16,012,499,063 to $16,271,813,995.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 700 institutions filings for Q1 2026.
Security key
436440101
Latest holder period
Q1 2026
13F holders
700
13D/G owners
2
CIK / CUSIP context first
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 436440101:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
2
Security
HOLX
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 8.9% | $1,163,537,677 | 19,937,246 | BlackRock, Inc. | 31 Mar 2025 | |||
| T. Rowe Price Investment Management, Inc. | 2.7% | -70% | $441,897,101 | -$1,163,389,513 | 5,932,301 | -72% | T. Rowe Price Investment Management, Inc. | 31 Dec 2025 |
As of 31 Mar 2026, 700 institutional investors reported holding 215,304,012 shares of HOLOGIC INC - Common Stock (HOLX). This represents 98% of the company’s total 219,714,852 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
63%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 10% | 22,520,444 | +1.9% | 0.03% | $1,702,320,349 |
| VANGUARD CAPITAL MANAGEMENT LLC | 6.6% | 14,503,914 | 0% | 0.03% | $1,096,350,859 |
| STATE STREET CORP | 4.5% | 9,990,906 | +1.2% | 0.03% | $755,212,585 |
| HBK INVESTMENTS L P | 4.5% | 9,800,000 | +17% | 9.3% | $740,782,000 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 4.4% | 9,620,600 | 0% | 0.04% | $727,221,154 |
| FIL Ltd | 3.6% | 7,821,581 | +50% | 0.46% | $591,233,308 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.8% | 6,058,845 | +2.4% | 0.03% | $456,297,563 |
| MILLENNIUM MANAGEMENT LLC | 2.6% | 5,651,225 | +61% | 0.32% | $427,176,098 |
| UBS Group AG | 2.3% | 5,089,745 | +62% | 0.07% | $384,733,824 |
| Balyasny Asset Management L.P. | 2.1% | 4,722,968 | +194% | 0.7% | $357,009,151 |
| Pentwater Capital Management LP | 2% | 4,500,224 | +5.9% | 2.4% | $340,171,932 |
| MORGAN STANLEY | 1.6% | 3,573,011 | +51% | 0.02% | $270,084,130 |
| GLAZER CAPITAL, LLC | 1.6% | 3,563,652 | +867% | 5.8% | $269,376,000 |
| JPMORGAN CHASE & CO | 1.5% | 3,301,493 | +96% | 0.02% | $249,427,884 |
| Invesco Ltd. | 1.4% | 3,164,586 | -12% | 0.04% | $239,211,055 |
| Qube Research & Technologies Ltd | 1.4% | 3,131,196 | +48% | 0.34% | $236,687,106 |
| O'Connor Alternative Investments LLC | 1.4% | 3,118,178 | 0% | 21% | $235,703,075 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.3% | 2,921,130 | -3.4% | 0.12% | $220,808,217 |
| NORTHERN TRUST CORP | 1.2% | 2,676,190 | -1.6% | 0.03% | $202,293,203 |
| GOLDMAN SACHS GROUP INC | 1.1% | 2,322,673 | +131% | 0.02% | $175,570,864 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 1% | 2,299,022 | +11% | 0.04% | $173,783,072 |
| BANK OF AMERICA CORP /DE/ | 1% | 2,254,024 | -23% | 0.01% | $170,381,693 |
| TUDOR INVESTMENT CORP ET AL | 1% | 2,196,804 | +36% | 0.89% | $166,056,414 |
| DEUTSCHE BANK AG\ | 0.99% | 2,173,847 | +34% | 0.05% | $164,321,095 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.98% | 2,157,358 | +2.9% | 0.02% | $163,074,691 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
49
Latest
Q1 2026
Rows shown
1-25 of 49
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 215,304,012 | $16,271,813,995 | -$45,061,323 | $75.59 | 700 |
| 2025 Q4 | 214,846,611 | $16,012,499,063 | +$219,841,388 | $74.49 | 747 |
| 2025 Q3 | 212,492,379 | $14,334,302,779 | -$378,120,974 | $67.49 | 734 |
| 2025 Q2 | 218,132,254 | $14,210,916,547 | -$23,672,881 | $65.16 | 686 |
| 2025 Q1 | 219,185,771 | $13,533,933,349 | -$494,384,634 | $61.77 | 695 |
| 2024 Q4 | 225,952,482 | $16,292,977,401 | -$244,868,360 | $72.09 | 713 |
| 2024 Q3 | 228,156,346 | $18,576,746,667 | +$496,213,366 | $81.46 | 721 |
| 2024 Q2 | 222,718,631 | $16,533,713,348 | +$105,010,677 | $74.25 | 698 |
| 2024 Q1 | 221,147,700 | $17,227,952,952 | -$234,049,329 | $77.96 | 698 |
| 2023 Q4 | 224,062,830 | $16,006,073,167 | -$500,391,974 | $71.45 | 729 |
| 2023 Q3 | 230,572,391 | $16,003,533,999 | -$87,863,581 | $69.40 | 689 |
| 2023 Q2 | 231,427,894 | $18,730,461,185 | -$255,302,991 | $80.97 | 708 |
| 2023 Q1 | 234,168,321 | $18,886,117,837 | -$187,386,904 | $80.70 | 703 |
| 2022 Q4 | 236,997,946 | $17,741,229,043 | -$97,671,764 | $74.81 | 689 |
| 2022 Q3 | 238,416,129 | $15,390,128,801 | -$1,939,378,742 | $64.52 | 642 |
| 2022 Q2 | 242,620,203 | $16,817,417,329 | +$570,032,491 | $69.30 | 682 |
| 2022 Q1 | 235,271,806 | $18,068,667,463 | +$118,582,580 | $76.82 | 690 |
| 2021 Q4 | 233,815,085 | $17,882,508,498 | -$231,733,788 | $76.56 | 668 |
| 2021 Q3 | 236,285,553 | $17,435,065,191 | -$7,939,211 | $73.81 | 634 |
| 2021 Q2 | 236,913,299 | $15,812,382,880 | -$324,339,701 | $66.72 | 617 |
| 2021 Q1 | 241,210,975 | $17,925,649,213 | -$20,396,780 | $74.38 | 627 |
| 2020 Q4 | 241,211,830 | $17,563,061,048 | +$2,400,872 | $72.83 | 612 |
| 2020 Q3 | 241,489,203 | $16,045,592,430 | -$247,352,770 | $66.47 | 560 |
| 2020 Q2 | 245,358,535 | $13,973,093,267 | +$409,692,142 | $57.00 | 512 |
| 2020 Q1 | 239,970,856 | $8,420,871,417 | -$305,469,704 | $35.10 | 458 |