Hologic, Inc.
US ˙ NasdaqGS ˙ US4364401012
TEN SYMBOL NIE JEST JUŻ AKTYWNY

SecurityHOLX / Hologic, Inc.
InstitutionTcw Group Inc
Latest Disclosed Ownership3,703 shares
Latest Disclosed Value $ 279,910
Tcw Group Inc reports 5.08% increase in ownership of HOLX / Hologic, Inc.

On May 14, 2026 - Tcw Group Inc filed a 13F-HR form disclosing ownership of 3,703 shares of Hologic, Inc. (US:HOLX) valued at $279,910 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 3,524 shares of Hologic, Inc.. This represents a change in shares of 5.08% during the quarter. The current value of the position is $281,465 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F HOLOGIC COM 436440101 3,703 179 5.08 280 6.49 0.0021
2026-02-17 2025-12-31 13F HOLOGIC COM 436440101 3,524 3,524 263 0.0019
2018-05-10 2018-03-31 13F HOLOGIC COM 436440101 0 -12,802 -100.00 0 -100.00
2018-02-09 2017-12-31 13F HOLOGIC COM 436440101 12,802 12,802 547 0.0044
2017-05-11 2017-03-31 13F HOLOGIC COM 436440101 0 -20,500 -100.00 0 -100.00
2017-02-10 2016-12-31 13F HOLOGIC COM 436440101 20,500 0 0.00 822 3.27 0.0062
2016-11-14 2016-09-30 13F HOLOGIC COM 436440101 20,500 2,700 15.17 796 29.22 0.0060
2016-08-12 2016-06-30 13F/A-1 HOLOGIC COM 436440101 17,800 550 3.19 616 3.53 0.0047
2016-08-11 2016-06-30 13F HOLOGIC COM 436440101 17,800 616
2016-05-16 2016-03-31 13F HOLOGIC COM 436440101 17,250 17,250 0.00 595 0.0044
2015-05-13 2015-03-31 13F HOLOGIC COM 436440101 0 -143,878 -100.00 0 -100.00
2015-02-13 2014-12-31 13F HOLOGIC COM 436440101 143,878 2,066 1.46 3,847 11.51 0.0161
2014-11-14 2014-09-30 13F HOLOGIC COM 436440101 141,812 -279,156 -66.31 3,450 -67.67 0.0139
2014-08-14 2014-06-30 13F HOLOGIC COM 436440101 420,968 -1,662,376 -79.79 10,671 -76.18 0.0439
2014-05-13 2014-03-31 13F HOLOGIC COM 436440101 2,083,344 -423,414 -16.89 44,793 -20.05 0.1860
2014-02-18 2013-12-31 13F/A-1 HOLOGIC COM 436440101 2,506,758 -1,797,593 -41.76 56,025 -36.97 0.2361
2014-02-14 2013-12-31 13F HOLOGIC COM 436440101 56,025 2,506,758
2013-11-14 2013-09-30 13F HOLOGIC COM 436440101 4,304,351 88,485 2.10 88,885 9.24 0.4106
2013-08-14 2013-06-30 13F/A-1 HOLOGIC COM 436440101 4,215,866 4,215,866 81,366 0.4012
2013-08-14 2013-06-30 13F HOLOGIC COM 436440101 4,215,866 81,366
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.