Hologic Ownership | Who Owns Hologic?

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Hologic Ownership Summary

Hologic is owned by 97.30% institutional investors, 0.86% insiders, and 1.84% retail investors. Vanguard group is the largest institutional shareholder, holding 11.69% of HOLX shares. T. Rowe Price Mid-Cap Growth is the top mutual fund, with 4.04% of its assets in Hologic shares.

HOLX Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Hologic	97.30%	0.86%	1.84%
Sector	Healthcare Stocks	492.67%	11.09%	-403.76%
Industry	Medical Instruments & Supplies Stocks	58.45%	13.43%	28.12%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	26.21M	11.69%	$1.77B
T. rowe price investment management	24.08M	10.74%	$1.57B
Blackrock	23.10M	9.79%	$1.72B
Blackrock funding, inc. /de	19.41M	8.65%	$1.31B
State street	10.33M	4.38%	$766.87M
Morgan stanley	7.81M	3.31%	$580.15M
Invesco	7.10M	3.17%	$479.28M
Geode capital management	5.90M	2.63%	$396.40M
Victory capital management	5.47M	2.44%	$369.17M
Black creek investment management	3.74M	1.67%	$252.64M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Black creek investment management	3.74M	11.91%	$252.64M
Psquared asset management	124.81K	6.69%	$8.42M
Blue door asset management	161.50K	5.45%	$10.52M
Sound shore management inc /ct/	1.34M	2.98%	$90.28M
Shapiro capital management	983.92K	2.82%	$64.11M
Otter creek advisors	60.17K	2.78%	$3.92M
Nuance investments	361.45K	2.48%	$24.39M
Sandler capital management	107.10K	1.89%	$6.98M
Olstein capital management	113.00K	1.44%	$7.63M
Thematics asset management	465.70K	1.36%	$30.34M

Top Buyers

Holder	Shares	% Assets	Change
T. rowe price investment management	24.08M	0.99%	6.39M
Morgan stanley	7.81M	0.04%	3.02M
Norges bank	1.85M	0.02%	1.85M
Ubs group	2.46M	0.03%	1.11M
Jane street group	921.79K	0.01%	842.87K

Top Sellers

Holder	Shares	% Assets	Change
Boston partners	-	-	-3.58M
Citadel advisors	2.38K	-	-1.66M
Price t rowe associates inc /md/	1.23M	0.01%	-1.57M
Invesco	7.10M	0.08%	-1.24M
Pacer advisors	19.52K	0.00%	-1.22M

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	1.85M	0.02%	1.85M	$133.41M
Adage capital partners gp	740.99K	0.08%	740.99K	$48.28M
Exoduspoint capital management, lp	543.37K	0.31%	543.37K	$35.41M
Van lanschot kempen investment management	431.96K	0.27%	431.96K	$28.15M
Alyeska investment group	412.11K	0.09%	412.11K	$26.85M

Sold Out

Holder	Change
Cbiz investment advisory services	-2.00
West branch capital	-2.00
Thurston, springer, miller, herd & titak	-2.00
Stephens consulting	-2.00
Financial synergies wealth advisors	-3.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Jun 30, 2025	704	-1.12%	218,268,288	-0.17%	97	1.04%	330	-1.79%	267	-2.91%
Mar 31, 2025	704	-3.43%	217,342,193	-3.57%	96	1.00%	332	-2.06%	274	-4.53%
Dec 31, 2024	420	-42.78%	114,860,082	-49.21%	49	0.53%	184	-48.46%	178	-32.83%
Sep 30, 2024	730	3.55%	225,253,734	1.21%	96	1.07%	354	9.94%	264	-1.49%
Jun 30, 2024	695	-2.93%	222,154,166	1.77%	94	1.10%	317	-3.65%	265	-1.85%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
T. Rowe Price Mid-Cap Growth	8.98M	4.04%	-16.40K
T. Rowe Price US Mid-Cap Growth Equity	8.99M	4.04%	505.70K
Vanguard US Total Market Shares ETF	7.39M	3.27%	4.97K
Vanguard Total Stock Mkt Idx Inv	7.01M	3.15%	-163.29K
T. Rowe Price Capital Appreciation	6.75M	3.04%	3.44M
Vanguard Institutional 500 Index Trust	6.39M	2.87%	49.19K
Vanguard 500 Index Investor	5.52M	2.48%	-808.52K
Vanguard Small Cap Index	5.41M	2.43%	-34.90K
Sycamore Mid Cap Value Comp	4.72M	2.09%	4.61M
Victory Sycamore Established Value R	3.96M	1.78%	-760.00K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Oct 20, 2025	Stamoulis Christiana	-	Sell	$540.86K
Sep 22, 2025	MACMILLAN STEPHEN P	Chairman, President and CEO	Sell	$2.61M
Sep 22, 2025	MACMILLAN STEPHEN P	Chairman, President and CEO	Sell	$5.19M
Sep 22, 2025	MACMILLAN STEPHEN P	Chairman, President and CEO	Sell	$1.47M
May 07, 2025	Madaus Martin D	-	Buy	$300.76K

Insider Transactions Trends

Date	Buy	Sell
2025 Q4	-	1
2025 Q3	-	3
2025 Q2	1	-
2025 Q1	-	-
2024 Q4	-	1

HOLX Ownership FAQ

Who Owns Hologic?

Hologic shareholders are primarily institutional investors at 97.30%, followed by 0.86% insiders and 1.84% retail investors. The average institutional ownership in Hologic's industry, Medical Instruments & Supplies Stocks, is 58.45%, which Hologic exceeds.

Who owns the most shares of Hologic?

Hologic’s largest shareholders are Vanguard group (26.21M shares, 11.69%), T. rowe price investment management (24.08M shares, 10.74%), and Blackrock (23.1M shares, 9.79%). Together, they hold 32.21% of Hologic’s total shares outstanding.

Does Blackrock own Hologic?

Yes, BlackRock owns 9.79% of Hologic, totaling 23.1M shares as of Jun 2024. This represents 0.04% of BlackRock's total assets, with a market value of 1.72B$. In the last quarter, BlackRock decreased its holdings by -295K shares, a -1.26% change.

Who is Hologic’s biggest shareholder by percentage of total assets invested?

Black creek investment management is Hologic’s biggest shareholder by percentage of total assets invested, with 11.91% of its assets in 3.74M Hologic shares, valued at 252.64M$.

Who is the top mutual fund holder of Hologic shares?

T. Rowe Price Mid-Cap Growth is the top mutual fund holder of Hologic shares, with 4.04% of its total shares outstanding invested in 8.98M Hologic shares.

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