Seagate Technology Holdings plc (STX): insider trading, Congress trades & who owns it

Insider signal
15/100
Heavy insider selling · 90 days
Insider buys
$0
0 buyers · 12 months
Insider sales
$594.7M
11 sellers · 12 months
Funds holding
8
13F · Q2 2026
Congress trades
9
5 members · 2 years

Over the past year there were no insider purchases at Seagate Technology Holdings plc. 11 insiders sold roughly $594.7 million instead.

Selling on its own is common and often pre-planned (10b5-1 plans, taxes, diversification), so it matters more when it is unusually heavy or broad.

Members of Congress reported 9 trades in STX over the past two years (five members). On the institutional side, 8 funds reported holding STX at the end of Q2 2026, and more funds bought than sold. Looking at the quarterly pattern: 7 quarters in a row of net selling by insiders. Insiders bought in 0 of the last 7 full quarters.

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Latest insider trades in STX

FiledInsiderRoleTypeSharesPriceValueSource
Oct 2, 2026MOSLEY WILLIAM DCEOSell517$900.46$466KSEC
Oct 2, 2026MOSLEY WILLIAM DCEOSell440$901.49$397KSEC
Oct 2, 2026MOSLEY WILLIAM DCEOSell384$902.55$347KSEC
Oct 2, 2026MOSLEY WILLIAM DCEOSell696$903.36$629KSEC
Oct 2, 2026MOSLEY WILLIAM DCEOSell480$904.33$434KSEC
Oct 2, 2026MOSLEY WILLIAM DCEOSell480$905.38$435KSEC
Oct 2, 2026MOSLEY WILLIAM DCEOSell601$906.42$545KSEC
Oct 2, 2026MOSLEY WILLIAM DCEOSell1,027$908.58$933KSEC
Oct 2, 2026MOSLEY WILLIAM DCEOSell307$909.84$279KSEC
Oct 2, 2026MOSLEY WILLIAM DCEOSell840$910.69$765KSEC
Oct 2, 2026MOSLEY WILLIAM DCEOSell960$915.01$878KSEC
Oct 2, 2026MOSLEY WILLIAM DCEOSell480$916.10$440KSEC
Oct 2, 2026MOSLEY WILLIAM DCEOSell400$917.22$367KSEC
Oct 2, 2026MOSLEY WILLIAM DCEOSell920$918.49$845KSEC
Oct 2, 2026MOSLEY WILLIAM DCEOSell930$921.63$857KSEC

Congress trades in STX Free

FiledMemberTypeAmountSource
Sep 25, 2026Kevin Hern RSale (partial)$1,001 - $15,000Official filing
Jul 21, 2026Alan Armstrong RPurchase$1,001 - $15,000Official filing
Jan 15, 2026Julie Johnson DSale$1,001 - $15,000Official filing
Dec 11, 2025Julie Johnson DSale (partial)$1,001 - $15,000Official filing
Nov 16, 2025Kevin Hern RSale (partial)$15,001 - $50,000Official filing
Oct 22, 2025Lisa C. McClain RPurchase$15,001 - $50,000Official filing
Sep 11, 2025Julie Johnson DSale (partial)$1,001 - $15,000Official filing
Aug 14, 2025Julie Johnson DSale (partial)$1,001 - $15,000Official filing

Questions about STX

Are insiders buying or selling STX stock?

In the last 12 months Seagate Technology Holdings plc insiders made open-market purchases worth about $0 and sales worth about $594.7 million. Data comes from SEC Form 4 filings, updated every 30 minutes on CapitalSnitch.

When was the last insider trade in STX?

The most recent open-market insider trade in STX was filed on 2026-10-02.

How many institutions own STX?

8 investment managers reported holding STX in SEC Form 13F filings for Q2 2026.

Has any member of Congress traded STX?

Yes. Members of Congress reported 9 trades in STX over the past two years. The full list is free on CapitalSnitch.

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Public-record data for research and education, not investment advice. Insider sales are often pre-planned (10b5-1). Congress data: Data derived from public disclosures filed under the Ethics in Government Act and the STOCK Act, republished free for public transparency and news reporting. Disclosures may lag the trade by 45 days or more and show amounts only as ranges. This data may not be used for credit rating, loan underwriting, solicitation of money (political, charitable or other), direct-mail or commercial targeting (5 U.S.C. 13107).