52 Form 4 filings for STX between 2026-07-24 and 2026-11-03, from 16 filers. 52 discretionary (13 sales, 39 purchases). 37 of 52 carry a dollar total (34 stated, 3 computed as shares × price), summing to $389,407,765; a multi-transaction filing without a stated total contributes only its largest transaction, so the sum is a floor and the true figure is higher. Prices ran $46 to $931.
| Filed | Action | Shares largest txn | Price | Filing total | Txns | SEC |
|---|---|---|---|---|---|---|
| 2026-11-03 | sold 10b5-1 PLAN | 1,160 | $619.60 | $4,185,349 | 14 | RECEIPT ↗ |
| 2026-11-03 | acquired (option exercise) 10b5-1 PLAN | 14,000 | $46.23 | $14,024,766 | 28 | RECEIPT ↗ |
| 2026-10-02 | sold 10b5-1 PLAN | 1,665 | $930.99 | $10,293,464 | 16 | RECEIPT ↗ |
| 2026-10-02 | acquired (option exercise) 10b5-1 PLAN | 14,000 | $46.23 | $17,376,988 | 29 | RECEIPT ↗ |
| 2026-09-16 | acquired (option exercise) | 177,000 | — | $75,584,519 | 2 | RECEIPT ↗ |
| 2026-09-15 | acquired (option exercise) | 3,319 | — | $1,460,696 | 2 | RECEIPT ↗ |
| 2026-09-11 | acquired (option exercise) | 2,815 | — | $2,456,436 | 4 | RECEIPT ↗ |
| 2026-09-03 | acquired (option exercise) 10b5-1 PLAN | 14,000 | $46.23 | $24,488,282 | 27 | RECEIPT ↗ |
| 2026-08-24 | acquired | 21,065 | — | $15,406,022 | 6 | RECEIPT ↗ |
| 2026-08-04 | sold 10b5-1 PLAN | 1,985 | $826.76 | $14,130,293 | 19 | RECEIPT ↗ |
| 2026-08-04 | acquired 10b5-1 PLAN | 14,000 | $46.23 | ≥ $647,220 | 30 | RECEIPT ↗ |
| Filed | Action | Shares largest txn | Price | Filing total | Txns | SEC |
|---|---|---|---|---|---|---|
| 2026-11-03 | sold 10b5-1 PLAN | 995 | $653.78 | $1,739,149 | 25 | RECEIPT ↗ |
| 2026-09-22 | sold 10b5-1 PLAN | 1,040 | $873.49 | $8,211,951 | 27 | RECEIPT ↗ |
| 2026-09-16 | acquired (option exercise) | 30,130 | — | $11,941,704 | 2 | RECEIPT ↗ |
| 2026-09-15 | acquired (option exercise) | 942 | — | $384,952 | 2 | RECEIPT ↗ |
| 2026-09-11 | acquired (option exercise) | 631 | — | $493,355 | 4 | RECEIPT ↗ |
| 2026-08-24 | acquired 10b5-1 PLAN | 4,070 | — | $3,422,894 | 8 | RECEIPT ↗ |
| 2026-08-04 | sold 10b5-1 PLAN | 168 | $817.76 | $137,384 | — | RECEIPT ↗ |
| Filed | Action | Shares largest txn | Price | Filing total | Txns | SEC |
|---|---|---|---|---|---|---|
| 2026-10-26 | acquired (option exercise) | 1,580 | — | — | 2 | RECEIPT ↗ |
| Filed | Action | Shares largest txn | Price | Filing total | Txns | SEC |
|---|---|---|---|---|---|---|
| 2026-10-26 | acquired (option exercise) | 1,580 | — | — | 2 | RECEIPT ↗ |
| Filed | Action | Shares largest txn | Price | Filing total | Txns | SEC |
|---|---|---|---|---|---|---|
| 2026-10-26 | acquired (option exercise) | 1,580 | — | — | 2 | RECEIPT ↗ |
| Filed | Action | Shares largest txn | Price | Filing total | Txns | SEC |
|---|---|---|---|---|---|---|
| 2026-10-26 | acquired (option exercise) | 1,580 | — | — | 2 | RECEIPT ↗ |
| Filed | Action | Shares largest txn | Price | Filing total | Txns | SEC |
|---|---|---|---|---|---|---|
| 2026-10-26 | acquired (option exercise) | 1,580 | — | — | 2 | RECEIPT ↗ |
| Filed | Action | Shares largest txn | Price | Filing total | Txns | SEC |
|---|---|---|---|---|---|---|
| 2026-10-26 | acquired (option exercise) | 1,868 | — | — | 2 | RECEIPT ↗ |
| Filed | Action | Shares largest txn | Price | Filing total | Txns | SEC |
|---|---|---|---|---|---|---|
| 2026-10-26 | acquired (option exercise) | 1,580 | — | — | 2 | RECEIPT ↗ |
| Filed | Action | Shares largest txn | Price | Filing total | Txns | SEC |
|---|---|---|---|---|---|---|
| 2026-10-26 | acquired (option exercise) | 1,580 | — | — | 2 | RECEIPT ↗ |
| Filed | Action | Shares largest txn | Price | Filing total | Txns | SEC |
|---|---|---|---|---|---|---|
| 2026-10-26 | acquired (option exercise) | 1,580 | — | — | 2 | RECEIPT ↗ |
| Filed | Action | Shares largest txn | Price | Filing total | Txns | SEC |
|---|---|---|---|---|---|---|
| 2026-10-26 | acquired (option exercise) | 1,237 | — | $351,411 | 2 | RECEIPT ↗ |
| 2026-08-26 | acquired 10b5-1 PLAN | 4,032 | $158.40 | $7,163,926 | 30 | RECEIPT ↗ |
| 2026-08-24 | acquired | 5,698 | — | $3,345,396 | 6 | RECEIPT ↗ |
| 2026-08-03 | sold 10b5-1 PLAN | 694 | $877.45 | $608,950 | — | RECEIPT ↗ |
| 2026-07-24 | acquired | 1,237 | — | — | 2 | RECEIPT ↗ |
| Filed | Action | Shares largest txn | Price | Filing total | Txns | SEC |
|---|---|---|---|---|---|---|
| 2026-09-16 | acquired (option exercise) | 90,380 | — | $38,595,124 | 2 | RECEIPT ↗ |
| 2026-09-15 | acquired (option exercise) 10b5-1 PLAN | 1,695 | — | $4,677,037 | 16 | RECEIPT ↗ |
| 2026-09-15 | acquired (option exercise) 10b5-1 PLAN | 15,067 | $64.31 | $38,095,905 | 28 | RECEIPT ↗ |
| 2026-09-11 | acquired (option exercise) | 1,515 | — | $1,162,156 | 4 | RECEIPT ↗ |
| 2026-08-24 | acquired | 9,129 | — | $7,708,957 | 6 | RECEIPT ↗ |
| 2026-08-11 | sold 10b5-1 PLAN | 240 | $850.04 | $743,706 | 8 | RECEIPT ↗ |
| 2026-08-11 | sold 10b5-1 PLAN | 1,227 | $803.82 | $11,431,333 | 28 | RECEIPT ↗ |
| 2026-08-11 | sold 10b5-1 PLAN | 560 | $769.21 | $5,659,053 | 29 | RECEIPT ↗ |
| Filed | Action | Shares largest txn | Price | Filing total | Txns | SEC |
|---|---|---|---|---|---|---|
| 2026-09-16 | acquired (option exercise) 10b5-1 PLAN | 52,730 | — | $41,239,128 | 25 | RECEIPT ↗ |
| 2026-09-15 | acquired (option exercise) 10b5-1 PLAN | 989 | — | $770,431 | 2 | RECEIPT ↗ |
| 2026-09-11 | acquired (option exercise) 10b5-1 PLAN | 663 | — | $570,240 | 3 | RECEIPT ↗ |
| 2026-08-24 | sold 10b5-1 PLAN | 1,759 | $861.81 | $8,411,972 | 27 | RECEIPT ↗ |
| 2026-08-24 | acquired 10b5-1 PLAN | 7,595 | — | $5,098,255 | 23 | RECEIPT ↗ |
| 2026-08-14 | sold | 6,002 | $920.14 | $6,778,028 | 5 | RECEIPT ↗ |
16 filers · 52 filings · disclosed filing totals sum to $389,407,765 (34/52 state one, 3 computed; totals are proceeds with a floor, never profit — a Form 4 states what was traded, not what it cost the filer)