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STX · Seagate Technology Holdings Plc
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TEAM-0.32% 13F +439META+3.01% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV+4.49% 13F +693CRM+2.92% 13F +1,018CVNA-0.98% 13F +794TPL-0.71% 13F +444NET+4.32% 13F +710MSTR+17.56% 13F +526DELL+4.91% 13F +1,203CRWD+5.68% 13F +1,382ANET+1.22% 13F +1,323COIN+10.14% 13F +475TEAM-0.32% 13F +439META+3.01% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV+4.49% 13F +693CRM+2.92% 13F +1,018CVNA-0.98% 13F +794TPL-0.71% 13F +444NET+4.32% 13F +710MSTR+17.56% 13F +526DELL+4.91% 13F +1,203CRWD+5.68% 13F +1,382ANET+1.22% 13F +1,323COIN+10.14% 13F +475
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STX

Seagate Technology Holdings plc
INDUSTRIALS · COMPUTER STORAGE DEVICES · CIK 0001137789
CONGRESS · 1FORM 144 · 14☆ WATCH
INSIDER NET · 180D
-$270.7M
open-market buys minus sells, Form 4 codes P and S
INSIDER BUYERS · 180D
0
CONGRESS BUYERS · 1Y
1
FUNDS ADDED · QTR
1,208
13F, latest reported quarter
REVENUE GROWTH
+34.1%
XBRL, annual
NET MARGIN
26.1%
CONVERSIONS · 180D
64
codes C/M, not in net · $6.0M priced
SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST
INSIDERS
net -$270.7M over 180 days
-$162.4M over 90 days
below 95% of Industrials
CONGRESS
1 member bought in the last year
the lowest in Industrials
FUNDS
1,208 funds added or opened last quarter
more than 95% of Industrials
REVENUE
+34.1% year over year
more than 84% of Industrials
MARGIN
26.1% net margin
more than 98% of Industrials
BUYBACKS
$176.0M repurchased, FY to 2026-07-03
more than 74% of Industrials
SHORT
no short interest reported
THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET
Insiders are net sellers: -$270.7M across 9 people in 180 days.
1,208 funds added or opened positions in the latest 13F quarter, of 1,965 holders.
1 member of Congress reported buying it this year.
The year, with the filings on it
Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail
TOTAL 12M RETURN +378.1%
+378.1%12M
+0%+182%+364%+547%2025-092025-102025-122026-032026-052026-072026-09 2026-03-19 · MOSLEY WILLIAM D sold $10.0M2026-08-21 · MOSLEY WILLIAM D sold $9.6M2026-05-14 · Teh Ban Seng sold $6.5M2026-08-13 · Teh Ban Seng sold $5.5M2026-01-29 · Teh Ban Seng sold $4.2M2026-08-21 · Romano Gianluca sold $4.2M2026-01-29 · Teh Ban Seng sold $4.1M2026-09-01 · MOSLEY WILLIAM D sold $3.7M2026-05-20 · MOSLEY WILLIAM D sold $3.6M2026-09-01 · MOSLEY WILLIAM D sold $3.5M2026-05-20 · MOSLEY WILLIAM D sold $3.2M2026-08-21 · MOSLEY WILLIAM D sold $2.9M2026-08-21 · MOSLEY WILLIAM D sold $2.9M2026-02-23 · Chong Kian Fatt sold $2.4M2026-05-20 · MOSLEY WILLIAM D sold $2.4M2026-09-01 · MOSLEY WILLIAM D sold $2.3M2026-08-21 · Romano Gianluca sold $2.3M2026-07-01 · MOSLEY WILLIAM D sold $2.2M2026-08-21 · Lee James CI sold $2.1M2026-07-01 · MOSLEY WILLIAM D sold $2.1M2026-05-20 · MOSLEY WILLIAM D sold $2.0M2025-11-12 · Romano Gianluca sold $1.9M2025-10-30 · Chong Kian Fatt sold $1.9M2026-07-01 · MOSLEY WILLIAM D sold $1.9M2026-05-06 · Romano Gianluca sold $1.7M2026-08-21 · Morris John Christopher sold $1.7M2026-09-01 · MOSLEY WILLIAM D sold $1.7M2026-02-02 · MOSLEY WILLIAM D sold $1.7M2026-06-01 · MOSLEY WILLIAM D sold $1.7M2026-09-01 · MOSLEY WILLIAM D sold $1.7M2026-08-03 · MOSLEY WILLIAM D sold $1.6M2026-05-20 · MOSLEY WILLIAM D sold $1.6M2026-08-03 · MOSLEY WILLIAM D sold $1.6M2025-11-05 · Teh Ban Seng sold $1.6M2026-07-01 · MOSLEY WILLIAM D sold $1.6M2025-11-12 · Romano Gianluca sold $1.6M2026-02-02 · MOSLEY WILLIAM D sold $1.6M2025-12-01 · MOSLEY WILLIAM D sold $1.6M2026-06-01 · MOSLEY WILLIAM D sold $1.6M2026-06-12 · MOSLEY WILLIAM D sold $1.6M2026-06-01 · MOSLEY WILLIAM D sold $1.6M2025-12-01 · MOSLEY WILLIAM D sold $1.6M2026-09-01 · YOLANDA CONYERS filed to sell $621.3K2026-09-01 · WILLIAM D. MOSLEY filed to sell $74.6M2026-08-24 · JAMES LEE filed to sell $7.7M2026-08-21 · Lee James CI filed to sell $3.4M2026-08-21 · MOSLEY WILLIAM D filed to sell $15.5M2026-08-21 · Morris John Christopher filed to sell $3.0M2026-08-21 · Romano Gianluca filed to sell $7.8M2026-08-21 · BAN SENG TEH filed to sell $8.4M2026-08-20 · JOHN MORRIS filed to sell $435.4K2026-08-20 · BAN SENG TEH filed to sell $5.1M2026-08-13 · BAN SENG TEH filed to sell $6.8M2026-08-07 · GIANLUCA ROMANO filed to sell $18.9M2026-07-30 · JAMES LEE filed to sell $530.5K2026-07-23 · Lee James CI filed to sell $490.7K
INSIDER SELLFORM 144
INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY
Live price
Daily candles from TradingView, on their licence — no filings are marked on this one
WHY THIS NAME IS ON THE DESK
Insiders have filed to sell — before selling.
The record shows a net $270.7M sold by insiders over 180 days, 1,208 funds added last quarter, 1 Congress member(s) bought in 12 months, $153.2M in planned Form 144 sales. Every figure is a federal filing, dated the day it became public.
Backtest this pattern Open the screener
Same sector, ranked by filing activity
Sector from the SEC's own SIC classification
DELLANETTDGTSLAPANWAXONKTOSCRCTOFLXJOBYFTNTXPEL
Insider transactions
Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

Over the last 180 days, Seagate Technology Holdings plc insiders sold a net $270.7M of stock across 791 Form 4 purchases and sales, with 0 insider(s) buying. Source: SEC Form 4 filings, as of 2026-09-05.

INSIDER
FILED
SHARES
VALUE
MOSLEY WILLIAM D
CEO
SELL
2026-09-01
357.0
$287.2K
MOSLEY WILLIAM D
CEO
SELL
2026-09-01
160.0
$128.9K
MOSLEY WILLIAM D
CEO
SELL
2026-09-01
160.0
$129.2K
MOSLEY WILLIAM D
CEO
SELL
2026-09-01
960.0
$776.3K
MOSLEY WILLIAM D
CEO
SELL
2026-09-01
1,160.0
$939.1K
791 TRANSACTIONS ON RECORD

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Institutional holders
13F · holdings as of the latest quarter funds have reported
BlackRock, Inc.
15,166,793.0 sh
$14.6B
VANGUARD CAPITAL MANAGEMENT LLC
14,630,067.0 sh
$14.1B
STATE STREET CORP
9,911,669.0 sh
$9.6B
FMR LLC
8,153,134.0 sh
$7.9B
VANGUARD PORTFOLIO MANAGEMENT LLC
7,999,686.0 sh
$7.7B
SCHEDULE 13D/G
No 5%+ ownership filings
Nobody has crossed 5% with a filing obligation. Absence is a fact here, not missing data.
Planned sales · Form 144
Filed before the sale — intent, not a trade
YOLANDA CONYERS
FILED 2026-09-01
$621.3K
WILLIAM D. MOSLEY
FILED 2026-09-01
$74.6M
JAMES LEE
FILED 2026-08-24
$7.7M
Lee James CI
FILED 2026-08-21
$3.4M
MOSLEY WILLIAM D
FILED 2026-08-21
$15.5M
Fund concentration
N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show
ICON EQUITY FUND
$3.8M POSITION · AS OF 2026-03-31
8.0%
Affinity World Leaders Equity ETF
$3.2M POSITION · AS OF 2026-04-30
4.5%
Invesco Dorsey Wright Technology Momentum ETF
$24.1M POSITION · AS OF 2026-04-30
4.1%
Clough Select Equity ETF
$1.7M POSITION · AS OF 2026-04-30
3.5%
Adaptive Core ETF
$399.2K POSITION · AS OF 2026-03-31
3.4%
WCM Focused International Growth Fund
$632.5M POSITION · AS OF 2026-03-31
3.2%
SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK
Executive pay vs shareholder return · William D. Mosley
DEF 14A pay-versus-performance disclosure · both the headline pay and the SEC's mark-to-market figure, beside the return the company delivered and the return of the peer group it chose itself
FY
CEO TOTAL
ACTUALLY PAID
OTHER NEOs AVG
TSR
PEER TSR
2024
$17.2M
$57.4M
$5.5M
+258%
+129%
2023
$13.6M
$31.3M
$4.4M
+155%
+141%
2022
$11.4M
$4.8M
$3.3M
+47%
+115%
2021
$11.6M
$36.8M
$3.2M
+92%
+56%
TAGGED BY THE COMPANY UNDER SEC ITEM 402(v) · RETURN IS CUMULATIVE FROM THE START OF THE DISCLOSURE PERIOD · GREEN WHERE THE COMPANY BEAT ITS OWN PEER GROUP
Fundamentals
Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all
2026-072025-062024-062023-06
REVENUE$12.2B$9.1B$6.6B$7.4B
OPERATING INCOME$4.1B$1.9B$452.0M$-342.0M
NET INCOME$3.2B$1.5B$335.0M$-529.0M
EPS (DILUTED)13.906.771.58-2.56
OPERATING CASH FLOW$3.7B$1.1B$918.0M$942.0M
CASH$1.7B$891.0M$1.4B$786.0M
LONG-TERM DEBT$3.4B$5.0B$5.2B$5.4B
BUYBACKS$176.0M$0$0$408.0M
DIVIDENDS PAID$634.0M$600.0M$585.0M$582.0M
SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-05 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE
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Public filings, honestly analyzed. Official US government sources in one desk — every figure carries the date it was filed, and the methodology is published, backtest included.

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© 2026 WAVEMAN · SOURCE: SEC EDGAR & OFFICIAL GOVERNMENT DATA · NOT INVESTMENT ADVICE · CHART BY TRADINGVIEW · UPDATED 2026-09-05 ALL SYSTEMS LIVE FOR MACHINES →