STX

Seagate Technology Holdings$745.49 10.00%
Information TechnologyUSCUSIP G7997R103· EOD Jul 16, 2026◍ Confluence graph
Tracked 13F Holders
931
+88 QoQ
13F Value (tracked)
$65.0B
Insider Net · 180d
-$173.3M
0↑ 11↓
Recent Filings
15
Smart-money sentimentBearish
BearishBullish
13F funds (latest Q)27 adding · 21 trimming
Insider net (180d)-$173.3M

Price & smart-money activity

$745.49 10.00%5Y +772.0%
$45.69$313.69$581.70$849.70$1,118202120222023202420252026917827919267128759875979583610376671061088901696103610298512996501361001381301271321811202401742501972252742401989743
Hover for who · click for detailEnd-of-day closing prices52w $146.59 – $1,094

Top institutional holders

931 tracked 13F filers
5 source-reported value rows are withheld because the reported units do not agree with same-security peers. Share counts remain visible and unchanged.
#FundPosition valueSharesLast moveAs ofHistory
1BlackRock, Inc.
$5.6B
14.3M
−11%
Reduced · −1.8M sh
Q1 2026
2VANGUARD CAPITAL MANAGEMENT LLC
$5.5B
14.2M
New
+14.2M sh
Q1 2026
3Sanders Capital, LLC
$5.1B
12.9M
−25%
Reduced · −4.3M sh
Q1 2026
4VANGUARD PORTFOLIO MANAGEMENT LLC
$4.3B
11.1M
New
+11.1M sh
Q1 2026
5STATE STREET CORP
$3.7B
9.3M
−0.5%
Reduced · −49K sh
Q1 2026
6FMR LLC
$3.2B
8.2M
+117%
Added · +4.4M sh
Q1 2026
7JPMORGAN CHASE & CO
$2.4B
6.7M
−4.8%
Reduced · −339K sh
Q1 2026
8GEODE CAPITAL MANAGEMENT, LLC
$2.0B
5.1M
+3.3%
Added · +164K sh
Q1 2026
9MORGAN STANLEY
$1.9B
4.8M
−10%
Reduced · −558K sh
Q1 2026
10DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt
$1.4B
3.6M
−33%
Reduced · −1.8M sh
Q1 2026
11GOLDMAN SACHS GROUP INC
$1.4B
3.6M
+30%
Added · +818K sh
Q1 2026
12FRANKLIN RESOURCES INC
$1.4B
3.5M
−13%
Reduced · −508K sh
Q1 2026
13BANK OF AMERICA CORP /DE/
$1.3B
3.4M
−21%
Reduced · −900K sh
Q1 2026
14MASSACHUSETTS FINANCIAL SERVICES CO /MA/
$1.0B
2.5M
+26%
Added · +528K sh
Q1 2026
15NORTHERN TRUST CORP
$743.2M
1.9M
−0.2%
Reduced · −4K sh
Q1 2026
16NORGES BANK
$498.4M
1.8M
+33%
Added · +445K sh
Q4 2025
17DEUTSCHE BANK AG\
$689.2M
1.8M
+9.9%
Added · +159K sh
Q1 2026
18UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME
$601.0M
1.5M
+3.6%
Added · +54K sh
Q1 2026
19Legal & General Group Plc
$593.4M
1.5M
−0.6%
Reduced · −10K sh
Q1 2026
20ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
$561.6M
1.4M
−55%
Reduced · −1.8M sh
Q1 2026
21CHARLES SCHWAB INVESTMENT MANAGEMENT INC
$534.7M
1.4M
−0.9%
Reduced · −13K sh
Q1 2026
22D. E. Shaw & Co., Inc.
$505.2M
1.3M
+62%
Added · +493K sh
Q1 2026
23PRICE T ROWE ASSOCIATES INC /MD/
$493.0M
1.3M
+8.2%
Added · +95K sh
Q1 2026
24VANGUARD FIDUCIARY TRUST CO
$470.5M
1.2M
New
+1.2M sh
Q1 2026
25Holocene Advisors, LP
$426.1M
1.1M
+43%
Added · +329K sh
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Fund activity: latest quarter

Opened (NEW)
4
funds
Added
23
funds
Reduced
21
funds
Exited
0
funds

Funds that own STX also own

CompanyCo-held byCombined value
NVIDIA CORPNVDA421 funds$417.1B
AMAZON.COM INCAMZN421 funds$233.5B
MICROSOFT CORPMSFT416 funds$297.1B
ALPHABET INC-CL AGOOGL415 funds$193.4B
BROADCOM INCAVGO414 funds$158.8B
META PLATFORMS INC-CLASS AMETA413 funds$128.5B
VISA INC-CLASS A SHARESV410 funds$68.2B
APPLE INCAAPL406 funds$313.5B
MICRON TECHNOLOGY INCMU404 funds$47.9B
ELI LILLY & COLLY403 funds$85.4B
JPMORGAN CHASE & COJPM402 funds$79.8B
ALPHABET INC-CL CGOOG400 funds$135.1B

Ranked by how many of STX's institutional holders also hold each name, a cross-fund conviction signal.

Insider activity (Form 4)

Full insider page →
Buys · 180d
$0
0 insiders
Sells · 180d
$173.3M
11 insiders
Net
-$173.3M
267 P/S txns
Signal
Net Selling
open-market
DateInsiderRoleActionSharesValue
Jul 1, 2026MOSLEY WILLIAM DCEO, DirectorSell (S)320$284K
Jul 1, 2026MOSLEY WILLIAM DCEO, DirectorSell (S)320$285K
Jul 1, 2026MOSLEY WILLIAM DCEO, DirectorSell (S)120$107K
Jul 1, 2026MOSLEY WILLIAM DCEO, DirectorSell (S)200$178K
Jul 1, 2026MOSLEY WILLIAM DCEO, DirectorSell (S)40$36K
Jul 1, 2026MOSLEY WILLIAM DCEO, DirectorSell (S)266$238K
Jul 1, 2026MOSLEY WILLIAM DCEO, DirectorSell (S)254$227K
Jul 1, 2026MOSLEY WILLIAM DCEO, DirectorSell (S)400$359K
Jul 1, 2026MOSLEY WILLIAM DCEO, DirectorSell (S)340$305K
Jul 1, 2026MOSLEY WILLIAM DCEO, DirectorSell (S)300$270K
Jul 1, 2026MOSLEY WILLIAM DCEO, DirectorSell (S)308$277K
Jul 1, 2026MOSLEY WILLIAM DCEO, DirectorSell (S)401$361K

Institutional ownership over time

844 funds+359 since Q3 2024
0422844Q3 2024Q1 2025Q3 2025Q1 2026
funds holding aggregate valuelatest $64.0B · 4 values withheld

Recent filings

15 shown

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Ask your agent what changed in STX

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

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curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/STX/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for STX.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for STX. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.