Insider trade

CEO sold ~$328K of STX shares in the open market

Traded Aug 3, 2026 · Filed Aug 4, 2026

~$328K
Reported value · 400 sh @ $819.412: 312K
Holds after · shares reported: +13.8%
stock since the trade · S&P 500 +0.8%, $831.06 → $945.57 on Oct 1

Why it stands out

The boss of Seagate Technology sold $328K of Seagate Technology shares. It was planned long ago, so it says very little.

Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell

View the official recordSEC Form 4 — Statement of Changes in Beneficial Ownership

All the details

Dates, kept separate

Transaction date: Aug 3, 2026
Reporting period: Not applicable
Filed with the SEC: Aug 4, 2026

CEO$100K–$500KPre-arranged plan referenced

Context

Classification

open market sale

Code S — open-market or private sale

Absolute commitment

~$327,765

Shares × reported transaction price

Timing vs results

6 days after results of Jul 28, 2026

Results dates are the company's own 8-K (Item 2.02). Many companies only let insiders trade in a window after results

Price at the time

Closed at $831.06 on Aug 3, 2026, 464% above its 52-week low and 24% below its high, after a 22% drop over the previous 30 trading days

52-week range $147.27 (Aug 6, 2025) to $1,094.04 (Jun 22, 2026), 72% of the way up, from 251 adjusted closes. 30 trading days earlier: $1,070.23 on Jun 18, 2026. Describes the past only, not a forecast

Planned / mechanical clue

Footnote references a pre-arranged trading plan (Rule 10b5-1)

Only flagged when a footnote says so; never inferred

After it was reported

After	Stock	S&P 500	Difference
7 days	+4.8%	+0.3%	+4.5%
30 days	+1.4%	+0.1%	+1.3%

Past results only. Not a forecast.

Source receipt

Record ID: 0001137789-26-000164
Filed / recorded: Aug 4, 2026, 10:09 PM UTC
Added to OQRO: Oct 2, 2026, 12:28 PM UTC
Parser: form4-xml-v1
Data quality: Verified: identifiers matched exactly
Issuer: Seagate Technology Holdings plc
Issuer CIK: 1137789
Ticker: STX
Reporting person: William D Mosley
Relationship: Director, Officer
Officer title: CEO
Security: Ordinary Shares
Table: Non-derivative (Table I)
Transaction date: Aug 3, 2026
Transaction code: S
Shares / units: 400
Price per share: $819.412
Acquired / disposed: Disposed (D)
Shares owned after: 312,197
Ownership form: Direct
Amendment: No

Footnotes from the filing

All transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 18, 2026.
These Ordinary Shares were sold in multiple trades at prices ranging from $818.84 to $819.71. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.