Hologic
HOLX
HOLX was delisted on the 6th of April, 2026.
627 hedge funds and large institutions have $15.9B invested in Hologic in 2021 Q2 according to their latest regulatory filings, with 81 funds opening new positions, 210 increasing their positions, 244 reducing their positions, and 87 closing their positions.
63% more call options, than puts
Call options by funds: $77.9M | Put options by funds: $47.8M
7% less first-time investments, than exits
New positions opened: 81 | Existing positions closed: 87
1.15% less ownership
Funds ownership: 93.89% → 92.74% (-1.2%)
2% less funds holding
Funds holding: 639 → 627 (-12)
12% less capital invested
Capital invested by funds: $18B → $15.9B (-$2.12B)
14% less repeat investments, than reductions
Existing positions increased: 210 | Existing positions reduced: 244
60% less funds holding in top 10
Funds holding in top 10: 5 → 2 (-3)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Citadel Advisors
Miami,
Florida
|
+$148M |
| 2 |
APM
Avidity Partners Management
Dallas,
Texas
|
+$80.8M |
| 3 |
Balyasny Asset Management
Chicago,
Illinois
|
+$78.4M |
| 4 |
Massachusetts Financial Services
Boston,
Massachusetts
|
+$76.7M |
| 5 |
Parnassus Investments
San Francisco,
California
|
+$71.5M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Fidelity Investments
Boston,
Massachusetts
|
-$843M |
| 2 |
Wellington Management Group
Boston,
Massachusetts
|
-$163M |
| 3 |
T. Rowe Price Associates
Baltimore,
Maryland
|
-$71.2M |
| 4 |
MWNA
Marshall Wace North America
New York
|
-$62.4M |
| 5 |
Teacher Retirement System of Texas
Austin,
Texas
|
-$44.3M |
HOLX Hedge Fund Activity: Q2 2021 in Review
627 of the 5,768 institutional investors tracked by Wall St. Rank reported a position in Hologic (HOLX) for Q2 2021, worth a combined $15.9B — down 12% from $18B a quarter earlier.
Sellers outnumbered buyers: 87 funds closed out of HOLX and 81 opened new positions — a net loss of 6 holders — while 244 trimmed existing stakes and 210 added.
The largest buyer was Citadel Advisors, adding an estimated $148M. The largest seller was Fidelity Investments, cutting an estimated $843M.
- 627 institutional investors held Hologic (HOLX) as of Q2 2021, down from 639 in Q1 2021.
- Funds reported $15.9B of Hologic stock for Q2 2021, down 12% quarter-over-quarter.
- 81 funds opened new Hologic positions in Q2 2021 and 87 closed out, a net change of -6 holders.
- The largest Hologic buyer in Q2 2021 was Citadel Advisors, an estimated $148M added.
- The largest Hologic seller in Q2 2021 was Fidelity Investments, an estimated $843M sold.
Based on aggregated 13F filings for Q2 2021.