ADAGE CAPITAL PARTNERS GP, L.L.C.
Position in STX — Seagate Technology Holdings plc
CIK 1165408
Boston, MA
Position in STX
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$193,000,000
+$120,367,696 QoQ
Shares Held
200,000
+7.9% QoQ
Ownership
0.088%
of shares outstanding
% of Portfolio
0.27%
of 13F equity value
Holder Rank
#109
of 1,934 holders
Holding Since
Jun 2021
15 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in STX Over Time
Shares Held
Position Value (USD)
Position in Computer Hardware
Technology · as of Jun 30, 2026ADAGE CAPITAL PARTNERS GP, L.L.C. holds $962,796,800 across 7 Computer Hardware names. STX ranks #3 (20.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | SNDK |
Sandisk Corp
|
115,099 | $261,704,049 | |
| 2 | WDC |
Western Digital Corp
|
307,437 | $196,366,160 | |
| 3 | STX |
Seagate Technology Holdings plc
This page
|
200,000 | $193,000,000 | |
| 4 | ANET |
Arista Networks, Inc.
|
1,105,900 | $187,870,292 | |
| 5 | DELL |
Dell Technologies Inc.
|
232,800 | $100,443,888 | |
| 6 | SMCI |
Super Micro Computer, Inc.
|
431,600 | $12,658,828 | |
| 7 | HPQ |
Hp Inc
|
490,136 | $10,753,583 |
All Filings in STX
Export CSV
15 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $193,000,000 | 200,000 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $72,632,304 | 185,400 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $46,045,483 | 167,201 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $18,908,642 | 80,101 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $3,305,301 | 22,901 | Shares | Sole | 2025-08-14 | |
| 2024-12-31 | $8,121,857 | 94,101 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $3,987,001 | 36,401 | Shares | Sole | 2024-11-14 | |
| 2023-06-30 | $4,077,233 | 65,900 | Shares | Other | 2023-08-14 | |
| 2023-03-31 | $9,408,876 | 142,300 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $7,118,133 | 135,300 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $10,592,770 | 199,000 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $14,702,352 | 205,800 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $18,905,970 | 210,300 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $2,553,348 | 22,600 | Shares | Sole | 2022-02-14 | |
| 2021-06-30 | $9,329,373 | 106,100 | Shares | Sole | 2021-08-16 | |
| No filing history on record for this holder in this stock. | ||||||