STX · Seagate Technology Holdings plc · Shareholders & Ownership

$675.13 +14.32 (+2.17%) At close · Oct 20

S&P 500 member Nasdaq-100 member Rebalance outlook locked

Market Cap

$149.77B

226.64M

Volume · Oct 20 4.07M Avg daily vol (3M) 4.63M

Every disclosed holder of STX in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

How the holder list picks a filing →

Who Owns STX

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

Holder group	Holders	Shares	% Out	Summed
Institutional (13F)	1,971	188,118,435	83.00%	Yes
Insiders (Forms 3, 4, 5)	17	605,667	0.27%	Yes
13D/G-only blocks	0	0	0.00%	Yes
Remaining	—	37,920,416	16.73%	Rest
Registered funds (N-PORT, not summed)	297	36,638,291	16.17%	No

Shares outstanding: 226,644,518, the issuer's latest cover-page count restated onto today's split basis.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of STX

One row per holder Every filing By ultimate parent

All 13F Funds Insiders 13D/G Non-US

#	Holder	Shares	% Out	Change	As of	Notes
1	BlackRock, Inc. 13F CIK 2012383 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	15,166,793	6.69%	+892,710	Jun 30, 2026	carried, not yet filed for the newest quarter
1.1	iShares MSCI USA Momentum Factor ETF Fund S000040316 · Registered fund · Jul 31, 2026 iShares Trust, not summed	654,674	0.29%	+114,425	Jul 31, 2026	iShares Trust, not summed
1.2	iShares Future AI & Tech ETF Fund S000062201 · Registered fund · Jun 30, 2026 iShares Trust, not summed	114,052	0.05%	+1,621	Jun 30, 2026	iShares Trust, not summed
1.3	iShares MSCI USA Min Vol Factor ETF Fund S000031838 · Registered fund · Jul 31, 2026 iShares Trust, not summed	106,948	0.05%	—	Jul 31, 2026	iShares Trust, not summed
1.4	iShares Global Tech ETF Fund S000004305 · Registered fund · Jun 30, 2026 iShares Trust, not summed	75,404	0.03%	-4,079	Jun 30, 2026	iShares Trust, not summed
1.5	iShares ESG Aware MSCI USA ETF Fund S000055381 · Registered fund · May 31, 2026 iShares Trust, not summed	70,291	0.03%	-1,841	May 31, 2026	iShares Trust, not summed
2	VANGUARD CAPITAL MANAGEMENT LLC 13F CIK 2100119 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	14,630,067	6.46%	+474,394	Jun 30, 2026	carried, not yet filed for the newest quarter
3	STATE STREET CORP 13F CIK 93751 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	9,911,669	4.37%	+590,037	Jun 30, 2026	carried, not yet filed for the newest quarter
4	FMR LLC 13F CIK 315066 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	8,153,134	3.60%	-23,784	Jun 30, 2026	carried, not yet filed for the newest quarter
5	VANGUARD PORTFOLIO MANAGEMENT LLC 13F CIK 2100121 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	7,999,686	3.53%	-3,095,222	Jun 30, 2026	carried, not yet filed for the newest quarter
5.1	VANGUARD PORTFOLIO MANAGEMENT LLC 13G CIK 2100121 · Registered investment adviser · Jun 30, 2026 Rule 13d-1(b), qualified institution, not summed	7,999,686	3.53%	-3,095,222	Jun 30, 2026	Rule 13d-1(b), qualified institution, not summed
6	Invesco Ltd. 13F CIK 914208 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	7,536,880	3.33%	+2,960,032	Jun 30, 2026	carried, not yet filed for the newest quarter
6.1	Invesco NASDAQ 100 ETF Fund S000069448 · Registered fund · May 31, 2026 Invesco Exchange-Traded Fund Trust II, not summed	926,502	0.41%	+114,090	May 31, 2026	Invesco Exchange-Traded Fund Trust II, not summed
6.2	Invesco S&P 500 Momentum ETF Fund S000050154 · Registered fund · May 31, 2026 Invesco Exchange-Traded Fund Trust II, not summed	425,651	0.19%	+257,859	May 31, 2026	Invesco Exchange-Traded Fund Trust II, not summed
6.3	Invesco S&P 500 Quality ETF Fund S000003049 · Registered fund · Jul 31, 2026 Invesco Exchange-Traded Fund Trust, not summed	341,649	0.15%	—	Jul 31, 2026	Invesco Exchange-Traded Fund Trust, not summed
6.4	Invesco S&P 500 Equal Weight ETF Fund S000060812 · Registered fund · Jul 31, 2026 Invesco Exchange-Traded Fund Trust, not summed	228,438	0.10%	-208,929	Jul 31, 2026	Invesco Exchange-Traded Fund Trust, not summed
6.5	Invesco S&P 500 Equal Weight Technology ETF Fund S000060789 · Registered fund · Jul 31, 2026 Invesco Exchange-Traded Fund Trust, not summed	91,560	0.04%	-52,941	Jul 31, 2026	Invesco Exchange-Traded Fund Trust, not summed
7	VANGUARD TOTAL STOCK MARKET INDEX FUND Fund S000002848 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	7,118,460	3.14%	+193,310	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
8	VANGUARD 500 INDEX FUND Fund S000002839 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	5,814,131	2.57%	+270,952	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
9	WCM INVESTMENT MANAGEMENT, LLC 13F CIK 1061186 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	5,320,463	2.35%	+973,611	Jun 30, 2026	carried, not yet filed for the newest quarter
9.1	WCM Focused International Growth Fund Fund S000032897 · Registered fund · Jun 30, 2026 INVESTMENT MANAGERS SERIES TRUST, not summed	1,364,300	0.60%	-250,150	Jun 30, 2026	INVESTMENT MANAGERS SERIES TRUST, not summed
10	JPMORGAN CHASE & CO 13F CIK 19617 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	5,201,103	2.29%	-1,458,136	Jun 30, 2026	carried, not yet filed for the newest quarter
11	GEODE CAPITAL MANAGEMENT, LLC 13F CIK 1214717 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	5,155,435	2.27%	+94,607	Jun 30, 2026	carried, not yet filed for the newest quarter
12	Invesco QQQ Trust, Series 1 Fund S000101292 · Registered fund · Jun 30, 2026 Invesco QQQ Trust, Series 1, not summed	4,759,747	2.10%	+165,811	Jun 30, 2026	Invesco QQQ Trust, Series 1, not summed
13	MORGAN STANLEY 13F CIK 895421 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	4,720,524	2.08%	-38,788	Jun 30, 2026	carried, not yet filed for the newest quarter
14	Capital Research Global Investors 13F CIK 1422848 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	4,326,781	1.91%	-1,409,289	Jun 30, 2026	carried, not yet filed for the newest quarter
15	Sanders Capital, LLC 13F CIK 1508097 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	3,487,219	1.54%	-9,409,982	Jun 30, 2026	carried, not yet filed for the newest quarter
15.1	Sanders Capital, LLC 13G CIK 1508097 · Registered investment adviser · Jun 30, 2026 Rule 13d-1(b), qualified institution, not summed	3,496,343	1.54%	-9,538,932	Jun 30, 2026	Rule 13d-1(b), qualified institution, not summed
16	GOLDMAN SACHS GROUP INC 13F CIK 886982 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	3,440,106	1.52%	-133,684	Jun 30, 2026	carried, not yet filed for the newest quarter
17	NORGES BANK 13F CIK 1374170 · Non-US institution · Jun 30, 2026 carried, not yet filed for the newest quarter	3,095,723	1.37%	—	Jun 30, 2026	carried, not yet filed for the newest quarter
18	MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 13F CIK 912938 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	2,560,276	1.13%	+24,154	Jun 30, 2026	carried, not yet filed for the newest quarter
19	VANGUARD MID-CAP INDEX FUND Fund S000002844 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	2,429,312	1.07%	-2,280,248	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
20	WELLINGTON MANAGEMENT GROUP LLP 13F CIK 902219 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	2,414,136	1.07%	+2,326,538	Jun 30, 2026	carried, not yet filed for the newest quarter
20.1	VANGUARD WELLINGTON FUND Fund S000004406 · Registered fund · May 31, 2026 VANGUARD WELLINGTON FUND, not summed	738,160	0.33%	—	May 31, 2026	VANGUARD WELLINGTON FUND, not summed
20.2	GROWTH PORTFOLIO Fund S000004401 · Registered fund · Jun 30, 2026 VANGUARD VARIABLE INSURANCE FUNDS, not summed	28,035	0.01%	—	Jun 30, 2026	VANGUARD VARIABLE INSURANCE FUNDS, not summed
20.3	BALANCED PORTFOLIO Fund S000004390 · Registered fund · Jun 30, 2026 VANGUARD VARIABLE INSURANCE FUNDS, not summed	23,629	0.01%	—	Jun 30, 2026	VANGUARD VARIABLE INSURANCE FUNDS, not summed
21	VANGUARD GROWTH INDEX FUND Fund S000002842 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	2,394,278	1.06%	-52,703	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
22	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 13F CIK 1164508 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	2,138,429	0.94%	+704,934	Jun 30, 2026	carried, not yet filed for the newest quarter
23	BANK OF AMERICA CORP /DE/ 13F CIK 70858 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	2,115,112	0.93%	-1,265,328	Jun 30, 2026	carried, not yet filed for the newest quarter
24	DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main 13F CIK 1694217 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	2,108,402	0.93%	-1,511,670	Jun 30, 2026	carried, not yet filed for the newest quarter
25	NORTHERN TRUST CORP 13F CIK 73124 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	1,902,241	0.84%	+5,248	Jun 30, 2026	carried, not yet filed for the newest quarter
25.1	Stock Index Fund Fund S000001247 · Registered fund · Jun 30, 2026 Northern Funds, not summed	66,681	0.03%	+3,940	Jun 30, 2026	Northern Funds, not summed
25.2	Active M International Equity Fund Fund S000012492 · Registered fund · Jun 30, 2026 Northern Funds, not summed	11,549	0.01%	-1,632	Jun 30, 2026	Northern Funds, not summed
25.3	World Selection Index Fund Fund S000019579 · Registered fund · Jun 30, 2026 Northern Funds, not summed	10,181	0.00%	+192	Jun 30, 2026	Northern Funds, not summed
26	FRANKLIN RESOURCES INC 13F CIK 38777 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,798,079	0.79%	-1,720,116	Jun 30, 2026	carried, not yet filed for the newest quarter
27	Jupiter Topco LLC 13F CIK 2146052 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	1,608,436	0.71%	+640,908	Jun 30, 2026	carried, not yet filed for the newest quarter
28	DEUTSCHE BANK AG\ 13F CIK 948046 · Non-US institution · Jun 30, 2026 carried, not yet filed for the newest quarter	1,591,694	0.70%	-167,480	Jun 30, 2026	carried, not yet filed for the newest quarter
29	VANGUARD INFORMATION TECHNOLOGY INDEX FUND Fund S000004452 · Registered fund · May 31, 2026 VANGUARD WORLD FUND, not summed	1,570,750	0.69%	-184,443	May 31, 2026	VANGUARD WORLD FUND, not summed
30	Legal & General Group Plc 13F CIK 764068 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	1,530,731	0.68%	+16,114	Jun 30, 2026	carried, not yet filed for the newest quarter
31	JANE STREET GROUP, LLC 13F CIK 1595888 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	1,473,813	0.65%	+1,454,111	Jun 30, 2026	carried, not yet filed for the newest quarter
32	PRICE T ROWE ASSOCIATES INC /MD/ 13F CIK 80255 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,430,343	0.63%	+171,946	Jun 30, 2026	carried, not yet filed for the newest quarter
32.1	T. Rowe Price U.S. Equity Research ETF Fund S000071604 · Registered fund · Jun 30, 2026 T. Rowe Price Exchange-Traded Funds, Inc., not summed	18,679	0.01%	+2,417	Jun 30, 2026	T. Rowe Price Exchange-Traded Funds, Inc., not summed
33	D. E. Shaw & Co., Inc. 13F CIK 1009207 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	1,354,377	0.60%	+64,804	Jun 30, 2026	carried, not yet filed for the newest quarter
34	CHARLES SCHWAB INVESTMENT MANAGEMENT INC 13F CIK 884546 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,352,030	0.60%	-12,809	Jun 30, 2026	carried, not yet filed for the newest quarter
35	Bank of New York Mellon Corp 13F CIK 1390777 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	1,286,208	0.57%	+227,905	Jun 30, 2026	carried, not yet filed for the newest quarter
36	Amundi 13F CIK 1330387 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	1,285,101	0.57%	+319,536	Jun 30, 2026	carried, not yet filed for the newest quarter
37	AQR CAPITAL MANAGEMENT LLC 13F CIK 1167557 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,245,371	0.55%	+244,332	Jun 30, 2026	carried, not yet filed for the newest quarter
38	VANGUARD FIDUCIARY TRUST CO 13F CIK 933478 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	1,233,702	0.54%	+32,640	Jun 30, 2026	carried, not yet filed for the newest quarter
39	VANGUARD INSTITUTIONAL INDEX FUND Fund S000002853 · Registered fund · Jun 30, 2026 VANGUARD INSTITUTIONAL INDEX FUNDS, not summed	1,217,274	0.54%	-12,312	Jun 30, 2026	VANGUARD INSTITUTIONAL INDEX FUNDS, not summed
40	EXCHANGE TRADED CONCEPTS, LLC 13F CIK 1457320 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,152,676	0.51%	+1,122,608	Jun 30, 2026	carried, not yet filed for the newest quarter
40.1	QRAFT AI-Enhanced U.S. Large Cap Momentum ETF Fund S000065358 · Registered fund · Jul 31, 2026 Exchange Listed Funds Trust, not summed	913	0.00%	-174	Jul 31, 2026	Exchange Listed Funds Trust, not summed
40.2	Stratified LargeCap Index ETF Fund S000084823 · Registered fund · Jun 30, 2026 Exchange Listed Funds Trust, not summed	202	0.00%	-247	Jun 30, 2026	Exchange Listed Funds Trust, not summed
40.3	QRAFT AI-Enhanced U.S. Large Cap ETF Fund S000065357 · Registered fund · Apr 30, 2026 Exchange Listed Funds Trust, not summed	76	0.00%	-6	Apr 30, 2026	Exchange Listed Funds Trust, not summed
40.4	LG QRAFT AI-Powered U.S. Large Cap Core ETF Fund S000082989 · Registered fund · Jul 31, 2026 Exchange Listed Funds Trust, not summed	3	0.00%	-4	Jul 31, 2026	Exchange Listed Funds Trust, not summed
41	ROYAL BANK OF CANADA 13F CIK 1000275 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	1,044,994	0.46%	+31,501	Jun 30, 2026	carried, not yet filed for the newest quarter
42	Capital International Investors 13F CIK 1562230 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,032,054	0.46%	+1,032,054	Jun 30, 2026	carried, not yet filed for the newest quarter
43	LONE PINE CAPITAL LLC 13F CIK 1061165 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,000,109	0.44%	+1,000,109	Jun 30, 2026	carried, not yet filed for the newest quarter
44	Polar Capital Holdings Plc 13F CIK 1837309 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	984,377	0.43%	+50,518	Jun 30, 2026	carried, not yet filed for the newest quarter
45	DIMENSIONAL FUND ADVISORS LP 13F CIK 354204 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	942,529	0.42%	+106,511	Jun 30, 2026	carried, not yet filed for the newest quarter
45.1	Dimensional U.S. Core Equity 2 ETF Fund S000070903 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	113,167	0.05%	+8,926	Jul 31, 2026	Dimensional ETF Trust, not summed
45.2	Dimensional U.S. Equity Market ETF Fund S000070902 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	67,258	0.03%	+826	Jul 31, 2026	Dimensional ETF Trust, not summed
45.3	Dimensional US Core Equity Market ETF Fund S000069432 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	38,778	0.02%	+33	Jul 31, 2026	Dimensional ETF Trust, not summed
45.4	Dimensional US High Profitability ETF Fund S000075148 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	17,510	0.01%	+11,185	Jul 31, 2026	Dimensional ETF Trust, not summed
45.5	Dimensional US Core Equity 1 ETF Fund S000081780 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	8,841	0.00%	+60	Jul 31, 2026	Dimensional ETF Trust, not summed
46	VANGUARD MID-CAP GROWTH INDEX FUND Fund S000012756 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	859,383	0.38%	-799,301	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
47	UBS Group AG 13F CIK 1610520 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	839,966	0.37%	+207,283	Jun 30, 2026	carried, not yet filed for the newest quarter
48	National Pension Service 13F CIK 1608046 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	834,705	0.37%	+6,944	Jun 30, 2026	carried, not yet filed for the newest quarter
49	Point72 Asset Management, L.P. 13F CIK 1603466 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	822,914	0.36%	+276,536	Jun 30, 2026	carried, not yet filed for the newest quarter
50	Swedbank AB 13F CIK 946431 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	822,103	0.36%	+112,943	Jun 30, 2026	carried, not yet filed for the newest quarter

40 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 2,088 holders

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Key facts CIK 1137789 CUSIP G7997R103 13F (30d) 371 filings 358 filers Visit website Investor relations