Seagate Technology Ownership | Who Owns Seagate Technology?

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Seagate Technology Ownership Summary

Seagate Technology is owned by 47.60% institutional investors, 0.28% insiders, and 52.12% retail investors. Vanguard group is the largest institutional shareholder, holding 13.08% of STX shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 3.14% of its assets in Seagate Technology shares.

STX Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Seagate Technology	47.60%	0.28%	52.12%
Sector	Technology Stocks	35.36%	13.13%	51.51%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	28.12M	13.08%	$7.74B
Sanders capital	17.54M	8.27%	$4.14T
Blackrock funding, inc. /de	16.12M	7.50%	$4.44B
Blackrock	13.24M	6.31%	$1.37B
State street	9.28M	4.38%	$2.20B
Jpmorgan chase	7.00M	3.25%	$1.93B
Morgan stanley	5.32M	2.47%	$1.46B
Geode capital management	4.90M	2.28%	$1.34B
Capital research global investors	4.51M	2.10%	$1.24B
Wcm investment management	4.35M	2.02%	$1.58B

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Ariose capital management	96.60K	25.41%	$37.84M
Oxbow capital management (hk)	443.00K	18.32%	$104.57M
Central asset investments & management (hk)	40.09K	14.60%	$15.70M
Amanah trust	289.77K	12.50%	$113.52M
Atalan capital partners, lp	746.60K	12.30%	$176.24M
Rivermont capital management lp	150.21K	9.37%	$35.46M
Aufman associates	65.56K	9.25%	$18.05M
Maple rock capital partners	740.35K	6.90%	$174.77M
Twin lakes capital management	51.85K	6.34%	$14.28M
Apis capital advisors	114.30K	5.96%	$26.98M

Top Buyers

Holder	Shares	% Assets	Change
Arrowstreet capital, limited partnership	2.95M	0.44%	2.70M
Massachusetts financial services co /ma/	2.01M	0.18%	1.88M
Norges bank	1.81M	0.05%	1.81M
Blackrock funding, inc. /de	16.12M	0.07%	1.72M
Vanguard fiduciary trust	1.20M	0.12%	1.20M

Top Sellers

Holder	Shares	% Assets	Change
Jpmorgan chase	7.00M	0.12%	-6.93M
Fmr	1.98M	0.02%	-4.43M
Franklin resources	4.03M	0.27%	-4.04M
Balyasny asset management	5.91K	0.00%	-2.04M
Slate path capital lp	658.87K	2.41%	-1.69M

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	1.81M	0.05%	1.81M	$498.36M
Vanguard fiduciary trust	1.20M	0.12%	1.20M	$470.53M
Dz bank ag deutsche zentral genossenschafts bank, frankfurt am main	989.76K	0.20%	989.76K	$233.64M
Sands capital management	531.89K	0.82%	531.89K	$208.37M
Vanguard global advisers	477.17K	0.10%	477.17K	$186.94M

Sold Out

Holder	Change
Atticus wealth management	-1.00
Mine & arao wealth creation & management, llc.	-2.00
Colonial trust advisors	-2.00
Tortoise investment management	-2.00
Plante moran financial advisors	-4.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Dec 31, 2025	843	-29.46%	102,334,177	-47.00%	47	0.57%	441	-31.42%	262	-19.38%
Sep 30, 2025	747	-24.32%	88,296,573	-52.90%	41	0.53%	405	-25.28%	205	-25.72%
Jun 30, 2025	988	18.47%	197,905,798	0.12%	93	1.07%	543	42.52%	273	-2.85%
Mar 31, 2025	24	-97.18%	3,143,706	-98.35%	1	0.02%	7	-98.34%	6	-97.79%
Dec 31, 2024	443	-48.19%	77,071,414	-58.56%	36	0.47%	219	-46.19%	148	-43.73%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard US Total Market Shares ETF	6.64M	3.14%	5.13K
Vanguard Total Stock Mkt Idx Inv	6.93M	3.09%	172.98K
Vanguard Institutional 500 Index Trust	6.02M	2.84%	42.35K
Vanguard 500 Index Investor	5.55M	2.48%	-47.89K
Vanguard Mid Cap Index Institutional	4.71M	2.10%	69.25K
Invesco QQQ Trust	4.67M	2.08%	34.34K
American Funds Income Fund of Amer A	4.36M	2.06%	-208.21K
Vanguard Windsor™ II Inv	3.96M	1.86%	-
AZ InvestEd Ivy Science & Tech E	3.51M	1.66%	-
Macquarie Science and Technology	3.35M	1.58%	-168.89K

Recent Insider Transactions

Date	Name	Role	Activity	Value
May 07, 2026	Romano Gianluca	EVP & CFO	Sell	$1.46M
May 06, 2026	Romano Gianluca	EVP & CFO	Sell	$150.98K
May 06, 2026	Romano Gianluca	EVP & CFO	Sell	$303.07K
May 06, 2026	Romano Gianluca	EVP & CFO	Sell	$242.15K
May 06, 2026	Romano Gianluca	EVP & CFO	Sell	$212.41K

Insider Transactions Trends

Date	Buy	Sell
2026 Q2	-	69
2026 Q1	-	58
2025 Q4	-	83
2025 Q3	-	37
2025 Q2	-	34

STX Ownership FAQ

Who owns the most shares of Seagate Technology?

Seagate Technology’s largest shareholders are Vanguard group (28.12M shares, 13.08%), Sanders capital (17.54M shares, 8.27%), and Blackrock funding, inc. /de (16.12M shares, 7.50%). Together, they hold 28.85% of Seagate Technology’s total shares outstanding.

Does Blackrock own Seagate Technology?

Yes, BlackRock owns 6.31% of Seagate Technology, totaling 13.24M shares as of Jun 2024. This represents 0.03% of BlackRock's total assets, with a market value of 1.37B$. In the last quarter, BlackRock increased its holdings by 542.35K shares, a 4.27% change.

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

Ariose capital management is Seagate Technology’s biggest shareholder by percentage of total assets invested, with 25.41% of its assets in 96.6K Seagate Technology shares, valued at 37.84M$.

Who is the top mutual fund holder of Seagate Technology shares?

Vanguard US Total Market Shares ETF is the top mutual fund holder of Seagate Technology shares, with 3.14% of its total shares outstanding invested in 6.64M Seagate Technology shares.

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