Hologic Ownership | Who Owns Hologic?

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Hologic Ownership Summary

Hologic is owned by 57.70% institutional investors, 0.83% insiders, and 41.47% retail investors. Vanguard group is the largest institutional shareholder, holding 11.63% of HOLX shares. Vanguard High-Yield Corporate Inv is the top mutual fund, with 14.01% of its assets in Hologic shares.

HOLX Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Hologic	57.70%	0.83%	41.47%
Sector	Healthcare Stocks	232.80%	10.63%	-143.43%
Industry	Medical Instruments & Supplies Stocks	31.46%	14.27%	54.27%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	26.09M	11.63%	$1.94B
Blackrock funding, inc. /de	22.52M	10.04%	$1.70B
Blackrock	23.10M	9.79%	$1.72B
State street	9.99M	4.45%	$755.21M
Hbk investments l p	9.80M	4.37%	$740.78M
Fil	7.82M	3.49%	$591.23M
Geode capital management	6.06M	2.70%	$456.30M
Millennium management	5.65M	2.52%	$427.18M
Ubs group	5.09M	2.27%	$384.73M
Balyasny asset management	4.72M	2.10%	$357.01M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Syquant capital sas	1.52M	17.98%	$115.13M
Psquared asset management	405.92K	10.68%	$30.68M
Absolute gestao de investimentos ltda.	1.21M	10.40%	$91.24M
Taconic capital advisors lp	268.54K	8.86%	$20.30M
Equitec proprietary markets	217.57K	8.79%	$16.45M
Fifth lane capital, lp	94.53K	8.68%	$7.15M
Nexpoint asset management	1.54M	7.82%	$116.55M
Cibra capital	209.00K	7.62%	$15.80M
Hbk investments l p	9.80M	7.52%	$740.78M
Twin securities	179.04K	6.57%	$13.53M

Top Buyers

Holder	Shares	% Assets	Change
Norges bank	3.82M	0.03%	3.82M
Glazer capital	3.56M	5.71%	3.20M
Balyasny asset management	4.72M	0.46%	3.11M
Fil	7.82M	0.46%	2.59M
Millennium management	5.65M	0.18%	2.15M

Top Sellers

Holder	Shares	% Assets	Change
Manufacturers life insurance company, the	114.96K	0.01%	-9.33M
T. rowe price investment management	-	-	-5.93M
Victory capital management	61.42K	0.00%	-5.55M
Black creek investment management	-	-	-3.74M
Boston partners	-	-	-3.58M

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	3.82M	0.03%	3.82M	$284.25M
Vanguard fiduciary trust	1.25M	0.02%	1.25M	$94.69M
Weiss asset management lp	1.23M	1.57%	1.23M	$93.01M
Laurion capital management lp	604.51K	1.99%	604.51K	$45.69M
Vanguard global advisers	486.78K	0.02%	486.78K	$36.80M

Sold Out

Holder	Change
Murphy & mullick capital management	-1.00
Cbiz investment advisory services	-2.00
West branch capital	-2.00
Thurston, springer, miller, herd & titak	-2.00
Financial synergies wealth advisors	-3.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Dec 31, 2025	528	-30.98%	129,479,246	-39.08%	57	0.64%	228	-37.36%	197	-25.38%
Sep 30, 2025	530	-24.50%	125,279,273	-39.66%	55	0.65%	248	-24.39%	184	-30.83%
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%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard High-Yield Corporate Inv	31.27M	14.01%	-
Vanguard US Total Market Shares ETF	7.39M	3.27%	4.97K
Vanguard Total Stock Mkt Idx Inv	7.10M	3.18%	50.10K
T. Rowe Price Capital Appreciation	6.75M	3.04%	3.44M
Vanguard 500 Index Investor	5.67M	2.54%	-58.16K
Vanguard Small Cap Index	5.15M	2.31%	91.64K
Sycamore Mid Cap Value Comp	4.72M	2.09%	4.61M
Vanguard Short-Term Investment-Grade Inv	4.34M	1.95%	-
Victory Sycamore Established Value R	4.02M	1.80%	59.00K
MS INVF Global Brands A	3.76M	1.69%	-28.70K

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
2026 Q1	-	-
2025 Q4	-	1
2025 Q3	-	3
2025 Q2	1	-
2025 Q1	-	-

HOLX Ownership FAQ

Who Owns Hologic?

Hologic shareholders are primarily institutional investors at 57.70%, followed by 0.83% insiders and 41.47% retail investors. The average institutional ownership in Hologic's industry, Medical Instruments & Supplies Stocks, is 31.46%, which Hologic exceeds.

Who owns the most shares of Hologic?

Hologic’s largest shareholders are Vanguard group (26.09M shares, 11.63%), Blackrock funding, inc. /de (22.52M shares, 10.04%), and Blackrock (23.1M shares, 9.79%). Together, they hold 31.45% 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?

Syquant capital sas is Hologic’s biggest shareholder by percentage of total assets invested, with 17.98% of its assets in 1.52M Hologic shares, valued at 115.12M$.

Who is the top mutual fund holder of Hologic shares?

Vanguard High-Yield Corporate Inv is the top mutual fund holder of Hologic shares, with 14.01% of its total shares outstanding invested in 31.27M Hologic shares.

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