Skip to main content
HoldLens logoHoldLensConviction
← All tickers
Stock ownership · Live

STX logoSTX

Seagate Technology · Other

Today — 2026-04-21
All movers →
Last:$543.00
Day:+1.79%
Source: Yahoo Finance EOD 2026-04-21
Tracked owners
1
Sum of conviction
6%
Sector
Other
HoldLens Signal
Full buy/sell dossier for STX
Verdict · Multi-quarter trend · Activity · News · Ownership
Open dossier →
Advertisement
Remove with Pro →

Smart money activity

Every tracked buy, add, trim, and exit on STX by the best portfolio managers in the world. Ranked by manager quality inside each quarter.

Smart money activity
11 buys · 5 sells across tracked 13F filings
Net signal: Heavy accumulation
Q2 2026(5 moves)
Portfolio manager% portfolio
Duquesne Family Office
2.30%
Lone Pine Capital
5.90%
Tiger Global Management
1.10%
Gotham Asset Management
0.40%
Baillie Gifford (Long Term Global Growth)
0.00%
Q1 2026(2 moves)
Portfolio manager% portfolio
Duquesne Family Office
0.60%
Gotham Asset Management
0.20%
Q4 2025(2 moves)
Portfolio manager% portfolio
Gotham Asset Management
0.10%
Duquesne Family Office
0.00%
Q3 2025(2 moves)
Portfolio manager% portfolio
Gotham Asset Management
0.10%
Duquesne Family Office
0.50%
Q2 2025(2 moves)
Portfolio manager% portfolio
Duquesne Family Office
0.70%
Gotham Asset Management
0.10%
Q1 2025(1 move)
Portfolio manager% portfolio
Duquesne Family Office
1.30%
Q4 2024(2 moves)
Portfolio manager% portfolio
Duquesne Family Office
4.80%
Gotham Asset Management
0.10%

Insider activity

SEC Form 4 filings — when CEOs, CFOs, and 10%+ owners buy or sell their own stock.

Insider activity (Form 4)
18 buys · 136 sells from corporate insiders
Net: INSIDER SELLING
InsiderValue
Morris John Christopher
EVP & CTO
$0
Morris John Christopher
EVP & CTO
$36K
Morris John Christopher
EVP & CTO
$36K
Morris John Christopher
EVP & CTO
$72K
Morris John Christopher
EVP & CTO
$818K
Morris John Christopher
EVP & CTO
$36K
Morris John Christopher
EVP & CTO
$36K
Morris John Christopher
EVP & CTO
$107K
Morris John Christopher
EVP & CTO
$35K
Morris John Christopher
EVP & CTO
$283K
Morris John Christopher
EVP & CTO
$176K
Morris John Christopher
EVP & CTO
$653K
Morris John Christopher
EVP & CTO
$176K
Morris John Christopher
EVP & CTO
$246K
Morris John Christopher
EVP & CTO
$367K
Morris John Christopher
EVP & CTO
$666K
Morris John Christopher
EVP & CTO
$853K
Morris John Christopher
EVP & CTO
$862K
Morris John Christopher
EVP & CTO
$908K
Morris John Christopher
EVP & CTO
$872K
Morris John Christopher
EVP & CTO
$453K
Morris John Christopher
EVP & CTO
$174K
Morris John Christopher
EVP & CTO
$70K
Morris John Christopher
EVP & CTO
$139K
Morris John Christopher
EVP & CTO
$35K
Morris John Christopher
EVP & CTO
$69K
Morris John Christopher
EVP & CTO
$35K
Morris John Christopher
EVP & CTO
$145K
Teh Ban Seng
EVP & Chief Commercial Officer
$1.99M
Teh Ban Seng
EVP & Chief Commercial Officer
$320K
Teh Ban Seng
EVP & Chief Commercial Officer
$423K
Teh Ban Seng
EVP & Chief Commercial Officer
$1.26M
Teh Ban Seng
EVP & Chief Commercial Officer
$1.72M
Teh Ban Seng
EVP & Chief Commercial Officer
$1.02M
Teh Ban Seng
EVP & Chief Commercial Officer
$443K
Teh Ban Seng
EVP & Chief Commercial Officer
$1.39M
Teh Ban Seng
EVP & Chief Commercial Officer
$221K
Teh Ban Seng
EVP & Chief Commercial Officer
$94K
Teh Ban Seng
EVP & Chief Commercial Officer
$818K
Teh Ban Seng
EVP & Chief Commercial Officer
$784K
Showing the 40 most recent of 154 tracked Form 4 transactions. Full STX insider history →

Latest news

Recent headlines for STX.

Hedge funds holding STX

1 superinvestor hold Seagate Technology as a top position. Sorted by % of portfolio.

Manager% Portfolio
Jeffrey Ubben
Storage — multi-year hold.
6.3%
Dividend tax by country

What will you keep of every $100 in STX dividend?

Withholding rate
0%
Domestic (no cross-border)
Tax withheld
$0.00
You'd receive
$1000.00
Of $1000 gross
Source & treaty reference
Treaty: Domestic — no cross-border withholding
Citation: IRC §§ 1441–1446 (withholding applies to foreign persons; US residents not subject to WHT on US-source dividends)
U.S. residents receiving U.S.-source dividends: no cross-border withholding; taxed on return at qualified (0/15/20%) or ordinary rates.

Estimates for educational purposes only. Tax rules change; consult a qualified tax professional for your specific situation. Dividend-tax treatment depends on holding period, account type (taxable vs. retirement), investor type (individual vs. pension vs. mutual fund), limitation-on-benefits tests, and other factors not modeled here.

Get alerts when they buy or sell STX

One email per 13F filing — you'll know within hours if any tracked manager moves on STX.

Related smart-money signals

Derived from the same 13F filings

Frequently asked questions

Who owns STX?

1 tracked superinvestors hold Seagate Technology (STX) as a top position based on the latest SEC 13F filings. Largest tracked holder: Jeffrey Ubben at 6.3% of portfolio. Full ranking by % of portfolio shown in the table below.

How many hedge funds hold STX?

1 of HoldLens's tracked superinvestors hold STX according to the latest SEC 13F filings. The sum of conviction across those holders is 6% (sum of each manager's % of portfolio in STX).

Who is the biggest hedge-fund holder of STX?

Among HoldLens's tracked superinvestors, Jeffrey Ubben holds the largest STX position at 6.3% of portfolio. Storage — multi-year hold.

What sector is STX?

Seagate Technology (STX) is classified as Other. Smart-money activity, insider trades (SEC Form 4), buybacks, short interest, congressional trades, and ETF ownership for STX are all aggregated on this page.

Data sourced from SEC 13F filings. STX ownership reflects publicly disclosed long positions only. Not investment advice.

Deep dive

Read the filings like an analyst

The two books that teach how to read what a company and its holders actually disclose.

Amazon affiliate links — as an Amazon Associate, HoldLens earns from qualifying purchases and membership trials at no extra cost to you. These are books we genuinely recommend. Not investment advice; always do your own research.

Prefer to listen? Start a free Audible trial

New Audible members only · 30-day trial · many of these titles are included with membership.