STXSeagate Technology Holdings plc
Technology · Computer HardwareNasdaqStockMkt cap $208.1B
Disclosed trades
36
1 in 30d · 3 in 90d
Politicians
10
Last trade Oct 23, 2026
Buys
13
$220K at range midpoints
Sells
22
$315K at range midpoints
Closing price · 365 days
Nov 6, 2025 – Nov 5, 2026
Monthly buys vs sells · 24 months
Counts of disclosed transactions
- Buys
- Sells (incl. partial)
Politicians who traded it
5 hold it now Estimated
| Politician | Seat | Trades | Buys | Sells | Bought (mid) | Sold (mid) | Last trade | Est. position Estimated |
|---|---|---|---|---|---|---|---|---|
| DRo Khanna | House · CA-17 | 15 | 5 | 9 | $40K | $88.5K | Jun 2, 2026 | $129.2K |
| DRon Wyden | Senate · OR | 7 | 5 | 2 | $131.5K | $65K | Nov 11, 2022 | $937.4K |
| DJulie Johnson | House · TX-32 | 4 | 0 | 4 | $0 | $32K | Dec 18, 2025 | — |
| RKevin Hern | House · OK-01 | 4 | 0 | 4 | $0 | $105.5K | Oct 23, 2026 | — |
| RLisa C. McClain | House · MI-09 | 2 | 1 | 1 | $32.5K | $32.5K | Sep 30, 2026 | $63.7K |
| RAlan Armstrong | Senate · OK | 1 | 1 | 0 | $8K | $0 | Mar 27, 2026 | $9.8K |
| DDaniel S. Goldman | House · NY-10 | 1 | 0 | 1 | $0 | $8K | Jul 12, 2023 | — |
| DDonna E. Shalala | House · FL-27 | 1 | 0 | 1 | $0 | $8K | Jun 24, 2019 | — |
| RMarjorie Taylor Greene | House · GA-14 | 1 | 1 | 0 | $8K | $0 | May 19, 2021 | $37.5K |
| RRobert P. Bresnahan, Jr. | House · PA-08 | 1 | 0 | 1 | $0 | $8K | Apr 8, 2025 | — |
Recent trades
| Politician | Ticker | Asset | Type | Owner | Amount | vs S&P Estimated | Traded | Filed | Source |
|---|---|---|---|---|---|---|---|---|---|
| RKevin Hern | STX | Seagate Technology Holdings PLC - Ordinary Shares (STX) | Partial | Self | $15,001 - $50,000 | +28.1% | Oct 23, 2026 | Oct 28, 20265d | Filing |
| RLisa C. McClain | STX | Seagate Technology Holdings PLC - Ordinary Shares (STX) | Partial | Spouse | $15,001 - $50,000 | +32.3% | Sep 30, 2026 | Oct 12, 202612d | Filing |
| RKevin Hern | STX | Seagate Technology Holdings PLC - Ordinary Shares (STX) | Partial | Self | $1,001 - $15,000 | +44.1% | Sep 15, 2026 | Sep 25, 202610d | Filing |
| RAlan Armstrong | STX | Seagate Technology Holdings PLC - Ordinary Shares (Ireland) | Buy | Self | $1,001 - $15,000 | -45.6% | Mar 27, 2026 | Jul 21, 2026116d | Filing |
| DRo Khanna | STX | SEAGATE TECHNOLOGY HOLDIN PLC CMN | Partial | Dependent | $1,001 - $15,000 | +43.8% | Jun 2, 2026 | Jul 6, 202634d | FilingOCR |
| DRo Khanna | STX | SEAGATE TECHNOLOGY HOLDIN PLC CMN | PartialReview | Dependent | $1,001 - $15,000 | — | — | Jun 9, 2026 | FilingOCR |
| DRo Khanna | STX | SEAGATE TECHNOLOGY HOLDIN PLC CMN | Buy | Spouse | $1,001 - $15,000 | -43.2% | Apr 13, 2026 | May 11, 202628d | FilingOCR |
| DRo Khanna | STX | SEAGATE TECHNOLOGY HOLDIN PLC CMN | Sell | Spouse | $1,001 - $15,000 | -16.6% | Feb 5, 2026 | Mar 9, 202632d | FilingOCR |
| DJulie Johnson | STX | Seagate Technology Holdings PLC - Ordinary Shares (STX) | Sell | Joint | $1,001 - $15,000 | -39.8% | Dec 18, 2025 | Jan 15, 202628d | Filing |
| DJulie Johnson | STX | Seagate Technology Holdings PLC - Ordinary Shares (STX) | Partial | Joint | $1,001 - $15,000 | -45.2% | Nov 13, 2025 | Dec 11, 202528d | Filing |
| RKevin Hern | STX | Seagate Technology Holdings PLC - Ordinary Shares (STX) | Partial | Self | $15,001 - $50,000 | -68.4% | Oct 28, 2025 | Nov 16, 202519d | Filing |
| RKevin Hern | STX | Seagate Technology Holdings PLC - Ordinary Shares (STX) | Partial | Self | $15,001 - $50,000 | -68.4% | Oct 6, 2025 | Nov 16, 202541d | Filing |
| RLisa C. McClain | STX | Seagate Technology Holdings PLC - Ordinary Shares (STX) | Buy | Spouse | $15,001 - $50,000 | +107.2% | Sep 8, 2025 | Oct 22, 202544d | Filing |
| DJulie Johnson | STX | Seagate Technology Holdings PLC - Ordinary Shares (STX) | Partial | Joint | $1,001 - $15,000 | -125.6% | Aug 14, 2025 | Sep 11, 202528d | Filing |
| DJulie Johnson | STX | Seagate Technology Holdings PLC - Ordinary Shares (STX) | Partial | Joint | $1,001 - $15,000 | -185.9% | Jul 29, 2025 | Aug 14, 202516d | Filing |
| DRo Khanna | STX | SEAGATE TECHNOLOGY HOLDIN PLC CMN | Buy | Spouse | $1,001 - $15,000 | +331.9% | Apr 23, 2025 | May 12, 202519d | FilingOCR |
| DRo Khanna | STX | SEAGATE TECHNOLOGY HOLDIN PLC CMN | Buy | Dependent | $1,001 - $15,000 | +331.9% | Apr 15, 2025 | May 12, 202527d | FilingOCR |
| RRobert P. Bresnahan, Jr. | STX | Seagate Technology Holdings PLC - Ordinary Shares (STX) | Sell | Self | $1,001 - $15,000 | -354.7% | Apr 8, 2025 | May 8, 202530d | Filing |
| DRo Khanna | STX | SEAGATE TECHNOLOGY HOLDIN PLC CMN | Sell | Spouse | $1,001 - $15,000 | -529.2% | Mar 6, 2025 | Apr 10, 202535d | FilingOCR |
| DRo Khanna | STX | SEAGATE TECHNOLOGY HOLDIN PLC CMN | Buy | Spouse | $1,001 - $15,000 | +401.7% | Dec 16, 2024 | Jan 8, 202523d | FilingOCR |
| DRo Khanna | STX | SEAGATE TECHNOLOGY HOLDIN PLC CMN | Buy | Dependent | $1,001 - $15,000 | +345.9% | May 29, 2024 | Jun 5, 20247d | FilingOCR |
| DRo Khanna | STX | SEAGATE TECHNOLOGY HOLDIN PLC CMN | Sell | Spouse | $15,001 - $50,000 | -351.8% | Feb 13, 2024 | Mar 6, 202422d | FilingOCR |
| DRo Khanna | STX | SEAGATE TECHNOLOGY HOLDIN PLC CMN | SellReview | Unknown | $1,001 - $15,000 | -396.8% | Jan 10, 2024 | Feb 5, 202426d | FilingOCR |
| DDaniel S. Goldman | STX | Seagate Technology Holdings PLC - Ordinary Shares (STX) | Sell | Self | $1,001 - $15,000 | -524.4% | Jul 12, 2023 | Aug 13, 202332d | Filing |
| DRon Wyden | STX | Seagate Technology Holdings PLC - Ordinary Shares | PartialRestated | Spouse | $15,001 - $50,000 | -586.6% | Nov 11, 2022 | May 15, 2023185d | Filing |
| DRon Wyden | STX | Seagate Technology Holdings PLC - Ordinary Shares | Sell | Spouse | $15,001 - $50,000 | -655.0% | Nov 11, 2022 | Dec 11, 202230d | Filing |
| DRo Khanna | STX | SEAGATE TECHNOLOGY HOLDIN PLC CMN | SellReview | Spouse | — | -665.8% | Sep 8, 2022 | Oct 7, 202229d | FilingOCR |
| DRo Khanna | STX | SEAGATE TECHNOLOGY HOLDIN PLC CMN | UnknownReview | Spouse | $1,001 - $15,000 | — | May 23, 2022 | Jun 10, 202218d | FilingOCR |
| RMarjorie Taylor Greene | STX | Seagate Technology Holdings PlC - Ordinary Shares (STX) | Buy | Joint | $1,001 - $15,000 | +351.5% | May 19, 2021 | Jun 17, 202129d | Filing |
| DRon Wyden | STX | Seagate Technology plc | Buy | Spouse | $1,001 - $15,000 | +408.7% | Mar 5, 2021 | Apr 2, 202128d | Filing |
| DRon Wyden | STX | Seagate Technology plc | Buy | Spouse | $1,001 - $15,000 | +408.7% | Mar 4, 2021 | Apr 2, 202129d | Filing |
| DRon Wyden | STX | Seagate Technology plc | Buy | Spouse | $1,001 - $15,000 | +454.4% | Feb 26, 2021 | Mar 23, 202125d | Filing |
| DRon Wyden | STX | Seagate Technology plc | Buy | Spouse | $50,001 - $100,000 | +807.2% | Jul 6, 2020 | Jul 31, 202025d | Filing |
| DRon Wyden | STX | Seagate Technology plc | Buy | Spouse | $15,001 - $50,000 | +807.2% | Jul 2, 2020 | Jul 31, 202029d | Filing |
| DDonna E. Shalala | STX | Seagate Technology PLC - ordinary Shares (STX) | Sell | Self | $1,001 - $15,000 | — | Jun 24, 2019 | Apr 27, 2020308d | Filing |
| DRo Khanna | STX | SEAGATE TECHNOLOGY PLC CMN | Sell | Spouse | $1,001 - $15,000 | -630.1% | Jan 8, 2020 | Feb 10, 202033d | FilingOCR |
| DRo Khanna | STX | SEAGATE TECHNOLOGY PLCCMN | Sell | Spouse | $1,001 - $15,000 | -630.1% | Jan 8, 2020 | Feb 10, 202033d | FilingOCR |
Insider activity Filed
Insiders
18
Computer Storage Devices
Open-market buys · 90d
0
$0 bought
Open-market sells · 90d
329
$356M sold
Net · 90d
-$356M
-$605M net over 12 months · last Nov 2, 2026
| Date | Insider | Kind | Security | Shares | Price | Value | Post-holdings | D/I | 10b5-1 | Source |
|---|---|---|---|---|---|---|---|---|---|---|
| Nov 2, 2026filed Nov 3, 2026 | William D MosleyCEO | Sale | Ordinary Shares | −80 | $644.43 | $51,554 | 346,108.25 | D | 10b5-1 | 4 |
| Nov 2, 2026filed Nov 3, 2026 | William D MosleyCEO | Sale | Ordinary Shares | −160 | $642.78 | $102,845 | 346,188.25 | D | 10b5-1 | 4 |
| Nov 2, 2026filed Nov 3, 2026 | William D MosleyCEO | Sale | Ordinary Shares | −120 | $640.46 | $76,855 | 346,348.25 | D | 10b5-1 | 4 |
| Nov 2, 2026filed Nov 3, 2026 | William D MosleyCEO | Sale | Ordinary Shares | −160 | $636.08 | $101,773 | 346,468.25 | D | 10b5-1 | 4 |
| Nov 2, 2026filed Nov 3, 2026 | William D MosleyCEO | Sale | Ordinary Shares | −240 | $633.64 | $152,073 | 346,628.25 | D | 10b5-1 | 4 |
| Nov 2, 2026filed Nov 3, 2026 | William D MosleyCEO | Sale | Ordinary Shares | −80 | $632.55 | $50,604 | 346,868.25 | D | 10b5-1 | 4 |
| Nov 2, 2026filed Nov 3, 2026 | William D MosleyCEO | Sale | Ordinary Shares | −320 | $625.68 | $200,217 | 346,948.25 | D | 10b5-1 | 4 |
| Nov 2, 2026filed Nov 3, 2026 | William D MosleyCEO | Sale | Ordinary Shares | −640 | $623.91 | $399,302 | 347,268.25 | D | 10b5-1 | 4 |
| Nov 2, 2026filed Nov 3, 2026 | William D MosleyCEO | Sale | Ordinary Shares | −240 | $623.01 | $149,522 | 347,908.25 | D | 10b5-1 | 4 |
| Nov 2, 2026filed Nov 3, 2026 | William D MosleyCEO | Sale | Ordinary Shares | −1,080 | $621.89 | $671,646 | 348,148.25 | D | 10b5-1 | 4 |
Shares, prices and post-transaction holdings are exactly as reported on SEC Form 4. Net figures count open-market buys minus open-market sales only (awards, exercises, withholding and gifts are excluded).
Unusual activity Estimated
- 50Insider overlapPublic Nov 3, 2026 · traded Oct 23, 2026
Rep. Kevin Hern partially sold STX 10 days before its CEO sold $1.4M
Details
- Politician
- Kevin Hern
- Ticker
- STX
- Asset
- Seagate Technology Holdings PLC - Ordinary Shares (STX)
- Tx type
- partial_sale
- Traded
- Oct 23, 2026
- Filed
- Oct 28, 2026
- Amount low
- $15,001
- Amount high
- $50,000
- Range midpoint (estimate)
- $32,501
- Disclosed range
- $15,001 - $50,000
- Reporting lag days
- 5
- Owner type
- self
- Is whale
- No
- Insider trade
- {"insider":{"slug":"william-d-mosley","name":"William D Mosley","title":"CEO","short_title":"CEO"},"company":"Seagate Technology Holdings plc","ticker":"STX","tx_kind":"open_market_sale","tx_date":"2026-11-02","shares":2372,"price":607.2785,"value":1440464.6,"is_10b5_1":true,"filing_date":"2026-11-03"}
- Days between
- -10
- Opposite side
- No
- Public from
- Nov 3, 2026
- Method version
- 2026-11-03
- 50Insider overlapPublic Oct 12, 2026 · traded Sep 30, 2026
Rep. Lisa C. McClain's spouse partially sold STX 1 day before its CEO sold $1.6M
Details
- Politician
- Lisa C. McClain
- Ticker
- STX
- Asset
- Seagate Technology Holdings PLC - Ordinary Shares (STX)
- Tx type
- partial_sale
- Traded
- Sep 30, 2026
- Filed
- Oct 12, 2026
- Amount low
- $15,001
- Amount high
- $50,000
- Range midpoint (estimate)
- $32,501
- Disclosed range
- $15,001 - $50,000
- Reporting lag days
- 12
- Owner type
- spouse
- Is whale
- No
- Insider trade
- {"insider":{"slug":"william-d-mosley","name":"William D Mosley","title":"CEO","short_title":"CEO"},"company":"Seagate Technology Holdings plc","ticker":"STX","tx_kind":"open_market_sale","tx_date":"2026-10-01","shares":1665,"price":930.994,"value":1550105.01,"is_10b5_1":true,"filing_date":"2026-10-02"}
- Days between
- -1
- Opposite side
- No
- Public from
- Oct 12, 2026
- Method version
- 2026-11-03
- 50Insider overlapPublic Sep 25, 2026 · traded Sep 15, 2026
Rep. Kevin Hern partially sold STX the same day its CEO sold $75.6M
Details
- Politician
- Kevin Hern
- Ticker
- STX
- Asset
- Seagate Technology Holdings PLC - Ordinary Shares (STX)
- Tx type
- partial_sale
- Traded
- Sep 15, 2026
- Filed
- Sep 25, 2026
- Amount low
- $1,001
- Amount high
- $15,000
- Range midpoint (estimate)
- $8,001
- Disclosed range
- $1,001 - $15,000
- Reporting lag days
- 10
- Owner type
- self
- Is whale
- No
- Insider trade
- {"insider":{"slug":"william-d-mosley","name":"William D Mosley","title":"CEO","short_title":"CEO"},"company":"Seagate Technology Holdings plc","ticker":"STX","tx_kind":"open_market_sale","tx_date":"2026-09-15","shares":97889.25,"price":772.1432,"value":75584518.74,"is_10b5_1":false,"filing_date":"2026-09-16"}
- Days between
- 0
- Opposite side
- No
- Public from
- Sep 25, 2026
- Method version
- 2026-11-03
- 58Exec salePublic Sep 16, 2026 · traded Sep 15, 2026
STX CEO William D Mosley sold $75.6M
Details
- Insider
- William D Mosley
- Company
- Seagate Technology Holdings plc
- Ticker
- STX
- Tx kind
- open_market_sale
- Traded
- Sep 15, 2026
- Shares
- 97,889.25
- Price
- $772
- Value
- $75.6M
- Is 10b5 1
- No
- Filed
- Sep 16, 2026
- Public from
- Sep 16, 2026
- Method version
- 2026-11-03
- 44Exec salePublic Aug 24, 2026 · traded Aug 21, 2026
STX CEO William D Mosley sold $9.6M
Details
- Insider
- William D Mosley
- Company
- Seagate Technology Holdings plc
- Ticker
- STX
- Tx kind
- open_market_sale
- Traded
- Aug 21, 2026
- Shares
- 11,308
- Price
- $849
- Value
- $9.6M
- Is 10b5 1
- No
- Filed
- Aug 24, 2026
- Public from
- Aug 24, 2026
- Method version
- 2026-11-03
- 100Hindsight movePublic Jul 21, 2026 · traded Mar 27, 2026
STX rose 119% in the 30 trading days after Sen. Alan Armstrong's buy (hindsight)
Details
- Politician
- Alan Armstrong
- Ticker
- STX
- Asset
- Seagate Technology Holdings PLC - Ordinary Shares (Ireland)
- Tx type
- buy
- Traded
- Mar 27, 2026
- Filed
- Jul 21, 2026
- Amount low
- $1,001
- Amount high
- $15,000
- Range midpoint (estimate)
- $8,001
- Disclosed range
- $1,001 - $15,000
- Reporting lag days
- 116
- Owner type
- self
- Is whale
- No
- Entry date
- Mar 27, 2026
- Entry close
- 380.07
- Exit date
- May 11, 2026
- Exit close
- 834.01
- Forward return
- +119.4%
- Sign adjusted return
- +119.4%
- N trading days
- 30
- Hindsight
- Yes
- Measured from
- trade date
- Public from
- Jul 21, 2026
- Method version
- 2026-11-03
- 65Insider overlapPublic Jul 21, 2026 · traded Mar 27, 2026
Sen. Alan Armstrong bought STX 5 days before its CEO sold $1.2M
Details
- Politician
- Alan Armstrong
- Ticker
- STX
- Asset
- Seagate Technology Holdings PLC - Ordinary Shares (Ireland)
- Tx type
- buy
- Traded
- Mar 27, 2026
- Filed
- Jul 21, 2026
- Amount low
- $1,001
- Amount high
- $15,000
- Range midpoint (estimate)
- $8,001
- Disclosed range
- $1,001 - $15,000
- Reporting lag days
- 116
- Owner type
- self
- Is whale
- No
- Insider trade
- {"insider":{"slug":"william-d-mosley","name":"William D Mosley","title":"CEO","short_title":"CEO"},"company":"Seagate Technology Holdings plc","ticker":"STX","tx_kind":"open_market_sale","tx_date":"2026-04-01","shares":2900,"price":420.7721,"value":1220239.09,"is_10b5_1":true,"filing_date":"2026-04-02"}
- Days between
- -5
- Opposite side
- Yes
- Public from
- Jul 21, 2026
- Method version
- 2026-11-03
- 45Hindsight movePublic Jul 16, 2026 · traded Jun 2, 2026
STX fell 20% in the 30 trading days after Rep. Ro Khanna's dependent child's partial sale (hindsight)
Details
- Politician
- Ro Khanna
- Ticker
- STX
- Asset
- SEAGATE TECHNOLOGY HOLDIN PLC CMN
- Tx type
- partial_sale
- Traded
- Jun 2, 2026
- Filed
- Jul 6, 2026
- Amount low
- $1,001
- Amount high
- $15,000
- Range midpoint (estimate)
- $8,001
- Disclosed range
- $1,001 - $15,000
- Reporting lag days
- 34
- Owner type
- dependent
- Is whale
- No
- Entry date
- Jun 2, 2026
- Entry close
- 926.61
- Exit date
- Jul 16, 2026
- Exit close
- 745.49
- Forward return
- -19.5%
- Sign adjusted return
- +19.5%
- N trading days
- 30
- Hindsight
- Yes
- Measured from
- trade date
- Public from
- Jul 16, 2026
- Method version
- 2026-11-03
- 50Insider overlapPublic Jul 6, 2026 · traded Jun 2, 2026
Rep. Ro Khanna's dependent child partially sold STX 1 day after its CEO sold $1.7M
Details
- Politician
- Ro Khanna
- Ticker
- STX
- Asset
- SEAGATE TECHNOLOGY HOLDIN PLC CMN
- Tx type
- partial_sale
- Traded
- Jun 2, 2026
- Filed
- Jul 6, 2026
- Amount low
- $1,001
- Amount high
- $15,000
- Range midpoint (estimate)
- $8,001
- Disclosed range
- $1,001 - $15,000
- Reporting lag days
- 34
- Owner type
- dependent
- Is whale
- No
- Insider trade
- {"insider":{"slug":"william-d-mosley","name":"William D Mosley","title":"CEO","short_title":"CEO"},"company":"Seagate Technology Holdings plc","ticker":"STX","tx_kind":"open_market_sale","tx_date":"2026-06-01","shares":1807,"price":921.7474,"value":1665597.55,"is_10b5_1":true,"filing_date":"2026-06-02"}
- Days between
- 1
- Opposite side
- No
- Public from
- Jul 6, 2026
- Method version
- 2026-11-03
- 90Hindsight movePublic May 26, 2026 · traded Apr 13, 2026
STX rose 65% in the 30 trading days after Rep. Ro Khanna's spouse's buy (hindsight)
Details
- Politician
- Ro Khanna
- Ticker
- STX
- Asset
- SEAGATE TECHNOLOGY HOLDIN PLC CMN
- Tx type
- buy
- Traded
- Apr 13, 2026
- Filed
- May 11, 2026
- Amount low
- $1,001
- Amount high
- $15,000
- Range midpoint (estimate)
- $8,001
- Disclosed range
- $1,001 - $15,000
- Reporting lag days
- 28
- Owner type
- spouse
- Is whale
- No
- Entry date
- Apr 13, 2026
- Entry close
- 513.28
- Exit date
- May 26, 2026
- Exit close
- 845.76
- Forward return
- +64.8%
- Sign adjusted return
- +64.8%
- N trading days
- 30
- Hindsight
- Yes
- Measured from
- trade date
- Public from
- May 26, 2026
- Method version
- 2026-11-03