Castleark Management’s Hologic HOLX Stock Holding History

Castleark Management’s Portfolio HOLX Stock Details HOLX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-8,790	Closed	-$593K	–	312
2025 Q3	$593K	Buy	+8,790	New	+$584K	0.02%	239
2017 Q3	–	Sell	-120,250	Closed	-$5.46M	–	400
2017 Q2	$5.46M	Sell	120,250 -24,360	-17%	-$1.08M	0.18%	169
2017 Q1	$6.15M	Buy	144,610 +31,510	+28%	+$1.28M	0.19%	164
2016 Q4	$4.54M	Buy	+113,100	New	+$4.36M	0.14%	196
2016 Q2	–	Sell	-341,480	Closed	-$11.8M	–	383
2016 Q1	$11.8M	Sell	341,480 -121,840	-26%	-$4.25M	0.37%	70
2015 Q4	$17.9M	Buy	463,320 +343,970	+288%	+$13.4M	0.54%	42
2015 Q3	$4.67M	Sell	119,350 -4,000	-3%	-$159K	0.15%	165
2015 Q2	$4.7M	Sell	123,350 -16,700	-12%	-$585K	0.13%	191
2015 Q1	$4.63M	Buy	+140,050	New	+$4.3M	0.11%	205

Other funds holding HOLX

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Manulife (Manufacturers Life Insurance) Canada, Ontario, Canada $128B AUM 35.83% 1-Year Est. Return

HBK Investments Dallas, Texas $10.2B AUM 67.73% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Victory Capital Management San Antonio, Texas $178B AUM 37.23% 1-Year Est. Return

Fidelity International Hamilton, Bermuda $139B AUM 29.06% 1-Year Est. Return

PCM

Pentwater Capital Management Naples, Florida $16.4B AUM 55.44% 1-Year Est. Return

Castleark Management's HOLX Position: Q4 2025 in Review

Castleark Management sold out of Hologic (HOLX) in Q4 2025, closing a stake of 8,790 shares — an estimated $593K sold.

Castleark Management first reported a position in HOLX in Q1 2015 and held it in 9 quarters. The position peaked at $17.9M in Q4 2015. 749 funds tracked by Wall St. Rank hold HOLX as of Q4 2025.

Castleark Management reported no remaining Hologic position as of Q4 2025 after selling out during the quarter.
Castleark Management sold 8,790 Hologic shares in Q4 2025, an estimated $593K.
Castleark Management first reported a position in Hologic in Q1 2015 and held it in 9 quarters.
Castleark Management's Hologic position peaked at $17.9M in Q4 2015.
749 funds tracked by Wall St. Rank held Hologic as of Q4 2025.

Based on Castleark Management's 13F filing for Q4 2025, filed 13 Feb 2026.