Stock profile

Seagate Technology Holdings plc (STX)

STX · Latest close $753.25 as of Oct 12, 2026 · 13F data as of Jun 30, 2026 (2026 Q2)
Latest close
$753.25
As of Oct 12, 2026
Tracked funds holding
3 of 85
2026 Q2 13F filings
Opened / added
3 / 0
vs previous quarter
Trimmed / exited
0
vs previous quarter

Super-investor holdings · 2026 Q2

FundPortfolio weightSharesChange vs prev. quarter
Lone Pine Capital5.90%1,000,109NEW
Tiger Global Management1.15%285,100NEW
Maverick Capital0.01%1,210NEW

Source: SEC Form 13F filings for the quarter ended Jun 30, 2026. Change labels compare each fund’s 2026 Q2 filing with its previous filing. 13F filings cover long positions only and arrive up to 45 days after quarter-end. Fund counts here aggregate every share class mapped to this ticker; research headlines cite filer counts as they stood at publication, so a count here can differ from a headline by a holder (see Methodology, "How holder counts are counted").

All institutions · Form 13F

Institutions holding1,953 of 8,857 filers
Long-only filers among them1,941
Change vs 2026 Q1+518 net · 1,642 entered · 1,124 exited
Shares reported, all filers186,268,493
Reported value, all filers$197.3B

Source: SEC Form 13F data sets — every filer's latest report for the quarter ended Jun 30, 2026, not just the tracked funds above; changes compare with the quarter ended Mar 31, 2026. Share counts and values are summed as reported in the filings (a small number of filers report values in thousands of dollars, so value totals are as-filed sums).

Company fundamentals

ExchangeNasdaq
IndustryComputer Storage Devices (SIC 3572)
Revenue · FY2026$12.2B
Net income · FY2026$3.2B
Total assets · FY2026$10.0B
Shares outstanding226,644,518
Market cap (at latest close)$170.7B

Source: SEC EDGAR company filings (submissions and company facts), collected Oct 7, 2026. Shares outstanding as reported Jul 31, 2026.

Short interest

Shares short · Sep 15, 20269,129,029
Share of shares outstanding4.03%
Days to cover2.67

Shares short at recent settlements — Jun 30, 2026: 6.6M · Jul 15, 2026: 7.3M · Jul 31, 2026: 8.0M · Aug 14, 2026: 8.2M · Aug 31, 2026: 8.5M · Sep 15, 2026: 9.1M.

Source: FINRA Equity Short Interest (biweekly settlement data). Shares outstanding from SEC filings as of Jul 31, 2026.

Insider trading · Form 4

0 insiders bought on the open market in the last 90 days (0 purchases, $0), against 379 sales by 6 insiders ($379.3M).

Source: SEC Form 4 filings, as of Oct 13, 2026. Open-market transactions only.

Politician trading · U.S. Congress

0 members of Congress reported buying (0 purchases vs 1 sale).

Source: U.S. House Clerk and U.S. Senate eFD STOCK Act periodic transaction reports, as of Oct 3, 2026. Reported amounts are ranges, and reports can arrive up to 45 days after the trade.

Screens & lenses

Chart Signals

· Monthly Uptrend — Price above its 12-month moving average

· Top Relative Strength — Top 20% of the universe by 6-month return

Financial screens are computed from SEC company financial statements; red-flag models are screens, not verdicts — see Methodology.

Signal record

13F signal (2021 Q3 – 2026 Q1)EventsWin rateAvg returnSPYExcess
Share count tripled (3x)1100.0%+15.0%+1.9%+13.1%

Measured from SEC 13F filings: entry at the close on the first trading day after each quarter’s filing deadline, exit one quarter later on the same rule, dividend-adjusted closes. Past records do not guarantee future results — see Track Record and Methodology.

Related stocks

Also held by the tracked funds that hold STX: VISA INC. (V) · TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD (TSM) · APPLIED MATERIALS INC /DE (AMAT) · Spotify Technology S.A. (SPOT) · Nu Holdings Ltd. (NU) · BOSTON SCIENTIFIC CORP (BSX) · Alphabet Inc. (GOOGL) · MICROSOFT CORP (MSFT) · AMAZON COM INC (AMZN) · Meta Platforms, Inc. (META).

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