Seagate Technology Holdings plc

STX

Exchange: Nasdaq
Industry: Computer Storage Devices
SEC CIK: 0001137789

SEC filings (opens in a new tab)

In the last 90 days, Seagate Technology Holdings plc insiders filed 0 open-market purchases and 30 sales; 1,983 institutions reported holding it in 13F filings for Q2 2026, worth $181.1B in total; 5 superinvestors hold it, including Lone Pine Capital and Tiger Global Management.

Key figures

Market capClose on Nov 9, 2026: $116.2B
Insider buysOpen market, last 90 days: 0
Insider sellsLast 90 days, $356.0M in total: 30
13F holdersQ2 2026, +522 vs. previous quarter: 1,983
13F valueReported value at the end of Q2 2026: $181.1B
Superinvestors holdingAt the end of Q2 2026: 5

Price chart

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Financials

See financial statements

From SEC filings, in USD.

Revenue, FY2026: $12.2B; +34.1% year over year
Net income, FY2026: $3.18B; +116.7% year over year
Free cash flow, FY2026: $3.10B; +279.6% year over year
Revenue, Q1 FY2027: $4.23B; +61.0% year over year

Revenue flow, FY2026

Green is profit; orange is costs, expenses and taxes. Percentages are shares of revenue.

Short interest

See short data

From FINRA, settlement date Oct 15, 2026.

Short interest: 7.86M; Shares sold short
Change: +886.6K; +12.7% vs. previous
Days to cover: 1.39; At average daily volume

Superinvestors holding STX, Q2 2026

Go to the superinvestors tab

5 superinvestors report holding Seagate Technology Holdings plc on Form 13F. Percentages are the stock's share of each portfolio.

Lone Pine Capital

Stephen Mandel

5.9%

Seagate Technology Holdings plc's share of the portfolio

Shares: 1,000,109
Value: $965.1M

Tiger Global Management

Chase Coleman

1.1%

Seagate Technology Holdings plc's share of the portfolio

Shares: 285,100
Value: $275.1M

Other superinvestors holding STX (part 1)
Superinvestor	Weight	Value
Duquesne Family Office	2.7%	$117.7M
D1 Capital Partners	0.1%	$29.1M
Maverick Capital	<0.1%	$1.17M

Latest insider trades

See all insider trades

Open-market purchases and sales by Seagate Technology Holdings plc insiders from Form 4, newest first.

Insider trades
Filed (ET)	Trade date	Filing delay	Insider	Transaction	Shares	Avg price	Value	Holding change	Flags
Nov 3, 2026 (view filing)4:59 PM ET	Nov 2	1 day	Mosley William DCEO	SSale	−6.72K	$622.82	−$4.19M	−1.9%346.1K after	14 lots10b5-1
Nov 3, 2026 (view filing)4:59 PM ET	Nov 2	1 day	Mosley William DCEO	SSale	−23.3K	$602.44	−$14.0M	−6.2%352.8K after	27 lots10b5-1
Nov 3, 2026 (view filing)4:59 PM ET	Oct 30	4 days	Morris John ChristopherEVP & CTO	SSale	−2.67K	$650.15	−$1.74M	−11.3%20.9K after	24 lots10b5-1
Oct 26, 2026 (view filing)4:13 PM ET	Oct 23	3 days	Lee James CIEVP & CLO	SSale	−547.25	$642.14	−$351.4K	−34.5%1.04K after
Oct 2, 2026 (view filing)4:07 PM ET	Oct 1	1 day	Mosley William DCEO	SSale	−11.0K	$935.60	−$10.3M	−2.9%362.1K after	16 lots10b5-1
Oct 2, 2026 (view filing)4:07 PM ET	Oct 1	1 day	Mosley William DCEO	SSale	−19.0K	$914.67	−$17.4M	−4.8%373.1K after	28 lots10b5-1
Sep 22, 2026 (view filing)4:49 PM ET	Sep 21	1 day	Morris John ChristopherEVP & CTO	SSale	−9.35K	$877.91	−$8.21M	−29.2%22.7K after	26 lots10b5-1
Sep 16, 2026 (view filing)4:10 PM ET	Sep 15	1 day	Romano GianlucaEVP & CFO	SSale	−50.0K	$772.16	−$38.6M	−41.4%70.8K after
Sep 16, 2026 (view filing)4:10 PM ET	Sep 15	1 day	Mosley William DCEO	SSale	−97.9K	$772.14	−$75.6M	−20.6%378.1K after
Sep 16, 2026 (view filing)4:10 PM ET	Sep 15	1 day	Teh Ban SengEVP & Chief Commercial Officer	SSale	−52.7K	$782.08	−$41.2M	−90.1%5.81K after	24 lots10b5-1

Top 10 13F holders, Q2 2026

See all 1,983 holders

The largest institutional positions in Seagate Technology Holdings plc at the end of Q2 2026; share changes are against Q1 2026.

Institutions holding STX in Q2 2026
Institution	Shares	Value	% of portfolio	Change in shares	Action
BlackRock, Inc.	15,166,793	$14.6B	0.22%	+892,710+6.3%	Added
Vanguard Capital Management LLC	14,630,067	$14.1B	0.30%	+474,394+3.4%	Added
State Street Corp	9,911,669	$9.57B	0.28%	+590,037+6.3%	Added
FMR LLC	8,153,134	$7.87B	0.34%	−23,784−0.3%	Reduced
Vanguard Portfolio Management LLC	7,999,686	$7.72B	0.35%	−3,095,222−27.9%	Reduced
Invesco Ltd.	7,536,880	$7.27B	0.58%	+360,182+5.0%	Added
WCM Investment Management, LLC	5,320,463	$5.15B	9.34%	+973,611+22.4%	Added
JPMorgan Chase & Co	5,201,103	$5.04B	0.29%	−1,458,136−21.9%	Reduced
Geode Capital Management, LLC	5,155,435	$4.96B	0.26%	+94,607+1.9%	Added
Morgan Stanley	4,720,524	$4.56B	0.24%	−38,788−0.8%	Reduced

Holders of 5% or more of STX

See all 3 holders and filings

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Seagate Technology Holdings plc.

Largest holders of STX from 13D and 13G filings
Holder	Latest form	Stake	Change	First filed	Latest filing	Filing
Vanguard Capital Management LLC	13G	7.48%16.3M shares	New	Apr 30, 20261 filing	Apr 30, 2026	SEC
BlackRock, Inc.	13G/A	6.10%13.0M shares	–	Apr 23, 20251 filing	Apr 23, 2025	SEC
FMR LLC	13G	5.10%11.5M shares	–	Feb 8, 20214 filings	Nov 5, 2026	SEC

Politician trades

All politician trades in STX

9 members of Congress reported 21 trades in Seagate Technology Holdings plc since 2020. Newest filings:

Latest politician trades in STX
Filed	Politician	Type	Amount
Oct 28, 2026	Kevin Hern House · OK	Sell (partial)	$15K-$50K
Oct 12, 2026	Lisa C. McClain House · MI	Sell (partial)	$15K-$50K
Sep 25, 2026	Kevin Hern House · OK	Sell (partial)	$1K-$15K
Jul 21, 2026	Alan Armstrong Senate · OK	Buy	$1K-$15K
Jan 15, 2026	Julie Johnson House · TX	Sell	$1K-$15K

Kevin Hern
House · OK · Oct 28, 2026
Sell (partial)$15K-$50K
Lisa C. McClain
House · MI · Oct 12, 2026
Sell (partial)$15K-$50K
Kevin Hern
House · OK · Sep 25, 2026
Sell (partial)$1K-$15K
Alan Armstrong
Senate · OK · Jul 21, 2026
Buy$1K-$15K
Julie Johnson
House · TX · Jan 15, 2026
Sell$1K-$15K