Which funds own HOLX
Hologic Inc in the Q2 2026 filings. None of the 91 current managers lists it among its largest positions this quarter. What is here is what they held before selling out.
- Managers holding
- 0
- at least, of 91 current
- Combined value
- $0
- as reported
- Opened
- 0
- new this quarter
- Added to
- 0
- already held
- Trimmed or sold out
- 27
- 27 sold out entirely
Only each manager’s largest 200 positions are listed here, so a smaller holder may be missing.
Sold out of this quarter
Valued at what the position was worth in the previous filing, because by this one it is gone.
- Millennium Management LLC · Multi-strategy$428m held before
- Balyasny Asset Management LLC · Multi-strategy$357m held before
- Invesco Ltd · Long-only$239m held before
- Arrowstreet Capital LP · Quantitative$221m held before
- Tudor Investment Corp · Macro$166m held before
- Davidson Kempner Capital Management LP · Long/short equity$122m held before
- Neuberger Berman Group LLC · Long-only$103m held before
- Squarepoint Ops LLC · Multi-strategy$87m held before
- Citadel Advisors LLC · Multi-strategy$84m held before
- Soros Fund Management LLC · Macro$77m held before
- Woodline Partners LP · Long/short equity$76m held before
- AllianceBernstein LP · Long-only$76m held before
- Man Group PLC · Quantitative$58m held before
- Fidelity (FMR LLC) · Long-only$46m held before
- Verition Fund Management LLC · Multi-strategy$44m held before
- Caxton Associates LLP · Macro$39m held before
- Susquehanna International Group LLP · Quantitative$35m held before
- T. Rowe Price Associates Inc · Long-only$27m held before
- Two Sigma Investments LP · Quantitative$25m held before
- Winton Group Ltd · Quantitative$21m held before
- Schonfeld Strategic Advisors LLC · Multi-strategy$19m held before
- ExodusPoint Capital Management LP · Multi-strategy$19m held before
- AQR Capital Management LLC · Quantitative$8.7m held before
- Quantbot Technologies LP · Quantitative$4.1m held before
- Wellington Management Group LLP · Long-only$3.8m held before
- MFS Investment Management · Long-only$2.1m held before
- GAMCO Investors Inc · Activist$900k held before
Ownership through time
At least 17 of the 95 managers whose filings are on file listed HOLX in Q1 2026, against 10 in Q2 2013. 4 managers fewer than in Q4 2025: 1 started a position; 2 sold out, by their own filings; 3 no longer listed it among the positions read, which can mean a holding below the listed range or a filing not yet made.
Each manager’s largest 500 positions a quarter are read, so a small holding in a very large book can be missing, and a manager is counted as leaving only where its own filing shows it.
- Q2 2013: 10
- Q3 2013: 10
- Q4 2013: 6
- Q1 2014: 8
- Q2 2014: 8
- Q3 2014: 11
- Q4 2014: 10
- Q1 2015: 11
- Q2 2015: 11
- Q3 2015: 15
- Q4 2015: 16
- Q1 2016: 22
- Q2 2016: 17
- Q3 2016: 20
- Q4 2016: 22
- Q1 2017: 16
- Q2 2017: 14
- Q3 2017: 16
- Q4 2017: 12
- Q1 2018: 13
- Q2 2018: 13
- Q3 2018: 14
- Q4 2018: 16
- Q1 2019: 12
- Q2 2019: 17
- Q3 2019: 22
- Q4 2019: 17
- Q1 2020: 21
- Q2 2020: 21
- Q3 2020: 21
- Q4 2020: 16
- Q1 2021: 14
- Q2 2021: 17
- Q3 2021: 15
- Q4 2021: 15
- Q1 2022: 18
- Q2 2022: 14
- Q3 2022: 10
- Q4 2022: 11
- Q1 2023: 12
- Q2 2023: 15
- Q3 2023: 16
- Q4 2023: 15
- Q1 2024: 13
- Q2 2024: 13
- Q3 2024: 11
- Q4 2024: 10
- Q1 2025: 9
- Q2 2025: 11
- Q3 2025: 16
- Q4 2025: 21
- Q1 2026: 17
- Q2 2013: $1.5bn
- Q3 2013: $1.5bn
- Q4 2013: $2.4bn
- Q1 2014: $2.3bn
- Q2 2014: $8.9bn
- Q3 2014: $2.9bn
- Q4 2014: $3.3bn
- Q1 2015: $4.0bn
- Q2 2015: $4.9bn
- Q3 2015: $4.6bn
- Q4 2015: $4.5bn
- Q1 2016: $3.2bn
- Q2 2016: $3.4bn
- Q3 2016: $3.7bn
- Q4 2016: $3.5bn
- Q1 2017: $3.5bn
- Q2 2017: $4.0bn
- Q3 2017: $3.9bn
- Q4 2017: $4.7bn
- Q1 2018: $4.4bn
- Q2 2018: $4.6bn
- Q3 2018: $4.7bn
- Q4 2018: $4.5bn
- Q1 2019: $5.4bn
- Q2 2019: $5.1bn
- Q3 2019: $4.6bn
- Q4 2019: $4.6bn
- Q1 2020: $2.9bn
- Q2 2020: $4.8bn
- Q3 2020: $5.8bn
- Q4 2020: $6.2bn
- Q1 2021: $6.0bn
- Q2 2021: $4.8bn
- Q3 2021: $5.1bn
- Q4 2021: $4.9bn
- Q1 2022: $4.7bn
- Q2 2022: $3.8bn
- Q3 2022: $1.6bn
- Q4 2022: $1.7bn
- Q1 2023: $2.0bn
- Q2 2023: $1.9bn
- Q3 2023: $1.9bn
- Q4 2023: $1.3bn
- Q1 2024: $1.3bn
- Q2 2024: $1.2bn
- Q3 2024: $1.2bn
- Q4 2024: $848m
- Q1 2025: $727m
- Q2 2025: $1.3bn
- Q3 2025: $1.6bn
- Q4 2025: $1.5bn
- Q1 2026: $1.9bn
Between the quarter ends of Q4 2025 and Q1 2026. Each change in shares is valued at the Q1 2026 price, so the price’s own move is left out; a 13F shows the two quarter ends, not when in between anything was bought or sold.
Started in Q1 2026
Largest increases, by shares
- Balyasny Asset Management LLC1,608,340 to 4,722,968 shares+$235m
- Millennium Management LLC3,500,016 to 5,651,225 shares+$163m
- Davidson Kempner Capital Management LP720,423 to 1,619,115 shares+$68m
- Tudor Investment Corp1,609,400 to 2,196,804 shares+$44m
- Caxton Associates LLPnew: 515,637 shares+$39m
Largest decreases, by shares
- Schonfeld Strategic Advisors LLC799,388 to 249,872 shares-$42m
- AllianceBernstein LP1,449,516 to 1,018,319 shares-$32m
- ExodusPoint Capital Management LP326,035 to 187,082 shares-$11m
- Arrowstreet Capital LP3,023,079 to 2,921,130 shares-$7.7m
- Quantbot Technologies LP60,351 to 54,883 shares-$413k
Left it
- Renaissance Technologies LLCwas $99m
- Janus Henderson Group Ltdwas $38m
| Manager | Value over time | First listed | Largest | Q1 2026 |
|---|---|---|---|---|
| Millennium Management LLC | Q4 2014 | $427m | $427m | |
| Balyasny Asset Management LLC | Q2 2016 | $357m | $357m | |
| Arrowstreet Capital LP | Q1 2020 | $327m | $221m | |
| Tudor Investment Corp | Q3 2013 | $166m | $166m | |
| Davidson Kempner Capital Management LP | Q4 2025 | $122m | $122m | |
| Neuberger Berman Group LLC | Q4 2025 | $103m | $103m | |
| Squarepoint Ops LLC | Q4 2015 | $87m | $87m | |
| Soros Fund Management LLC | Q3 2016 | $77m | $77m | |
| Woodline Partners LP | Q4 2019 | $76m | $76m | |
| AllianceBernstein LP | Q4 2016 | $227m | $76m | |
| Man Group PLC | Q3 2018 | $85m | $58m | |
| Verition Fund Management LLC | Q2 2013 | $44m | $44m | |
| Caxton Associates LLP | Q2 2017 | $39m | $39m | |
| Winton Group Ltd | Q1 2015 | $27m | $21m | |
| Schonfeld Strategic Advisors LLC | Q1 2016 | $60m | $19m | |
| Carl C. Icahn | Q4 2013 | $6.9bn | last listed Q4 2015 | |
| T. Rowe Price Associates Inc | Q3 2014 | $3.3bn | last listed Q3 2024 | |
| Fidelity (FMR LLC) | Q1 2019 | $2.1bn | last listed Q2 2022 | |
| Capital Research Global Investors | Q2 2013 | $1.3bn | last listed Q3 2019 | |
| Capital World Investors | Q2 2013 | $1.2bn | last listed Q3 2019 | |
| Wellington Management Group LLP | Q2 2013 | $861m | last listed Q3 2023 | |
| Invesco Ltd | Q3 2015 | $543m | last listed Q3 2025 | |
| Glenview Capital Management LLC | Q2 2018 | $526m | last listed Q2 2022 | |
| Citadel Advisors LLC | Q1 2016 | $434m | last listed Q3 2025 | |
| Renaissance Technologies LLC | Q2 2014 | $287m | last listed Q4 2025 |
What HOLX is worth
Knowing who owns it is half the question. The other half is what it is worth against the companies it trades beside, which is the one an interviewer will follow up with.
Build the comp set around HOLX →How much of the picture this is
A Form 13F reports US-listed long equity and nothing else: no shorts, no bonds, no cash and no non-US listings. It arrives forty-five days after the quarter ends, so a manager who sold in July still shows the position in a filing published in August. This page reads the managers on file here rather than every filer in the market, and each manager’s largest positions rather than the whole table, so a small position in a very large book may not appear. Say “their last filing showed” rather than “they own”, and the distinction will do you credit.
What to do with a name the funds are buying
Knowing who owns something is the start of a pitch, not the pitch. The next questions are what it is worth and why they were buying.
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The holdings, every quarter, and the week between
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