Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

Seagate Technology Holdings plc

STX · Nasdaq · CIK 0001137789 · Technology · Computer Hardware

INSIDER SIGNAL

No active buy signal

0 qualifying P purchase groups
in the current 180-day scoring window

653 Form 4 transaction lines observed in the same window
577 sales · 76 option, withholding, award, gift or other lines

Last qualifying purchase2021-10-07 · Naik Ravi · $16.3K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesHigh
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
MOSLEY WILLIAM DCEO
▼○○▼▼○▼▼
Romano GianlucaEVP & CFO
▼○○▼▼○▼▼
Morris John ChristopherEVP & CTO
▼○○▼▼○▼
Teh Ban SengEVP & Chief Commercial Officer
▼○○▼▼
Chong Kian FattEVP Global Operations
○○
● Purchase▼ Sale○ Other

—

Purchase breadth, concentration & cluster buying

These modules activate when qualifying purchases enter the 180-day research window.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2021-10-07 · Naik Ravi.

Recent Form 4 activity

0Purchases
717Sales
171Other Form 4 lines
126SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING577 sale line(s) · context only
OTHER76 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
6,972,672
Previous report
9,129,029
Avg daily volume
3,901,648
Days to cover
1.8

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2021-10-07Naik RaviPurchase (P)Ordinary Shares201USD 81.28USD 16,322SEC filing ↗
2021-07-08Naik RaviPurchase (P)Ordinary Shares122USD 87.73USD 10,695SEC filing ↗

Form 4 evidence

888 transaction lines in the latest 365-day window; 1,806 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-01MOSLEY WILLIAM DSale (S)Ordinary Shares11,002USD 935.60USD 10,293,464SEC filing ↗
2026-10-01MOSLEY WILLIAM DSale (S)Ordinary Shares18,998USD 914.67USD 17,376,988SEC filing ↗
2026-10-01MOSLEY WILLIAM DOption exercise / conversion (M)Ordinary Shares14,000USD 46.23USD 647,220SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-01MOSLEY WILLIAM DSale (S)Ordinary Shares11,002USD 935.60USD 10,293,464SEC filing ↗
2026-10-01MOSLEY WILLIAM DSale (S)Ordinary Shares18,998USD 914.67USD 17,376,988SEC filing ↗
2026-10-01MOSLEY WILLIAM DOption exercise / conversion (M)Ordinary Shares14,000USD 46.23USD 647,220SEC filing ↗
2026-09-21Morris John ChristopherSale (S)Ordinary Shares9,354USD 877.91USD 8,211,939SEC filing ↗
2026-09-21Morris John ChristopherOption exercise / conversion (M)Ordinary Shares915USD 158.40USD 144,936SEC filing ↗
2026-09-15Teh Ban SengSale (S)Ordinary Shares52,730USD 782.08USD 41,239,180SEC filing ↗
2026-09-15Romano GianlucaSale (S)Ordinary Shares49,984USD 772.16USD 38,595,259SEC filing ↗
2026-09-15Morris John ChristopherSale (S)Ordinary Shares15,466USD 772.15USD 11,941,686SEC filing ↗
2026-09-15MOSLEY WILLIAM DSale (S)Ordinary Shares97,889USD 772.14USD 75,584,205SEC filing ↗
2026-09-14Teh Ban SengOption exercise / conversion (M)Ordinary Shares52,730USD 0.00USD 0SEC filing ↗
2026-09-14Romano GianlucaOption exercise / conversion (M)Ordinary Shares90,380USD 0.00USD 0SEC filing ↗
2026-09-14Morris John ChristopherOption exercise / conversion (M)Ordinary Shares30,130USD 0.00USD 0SEC filing ↗
2026-09-14MOSLEY WILLIAM DOption exercise / conversion (M)Ordinary Shares177,000USD 0.00USD 0SEC filing ↗
2026-09-14Chong Kian FattOption exercise / conversion (M)Ordinary Shares14,470USD 0.00USD 0SEC filing ↗
2026-09-14Teh Ban SengSale (S)Ordinary Shares989USD 779.00USD 770,431SEC filing ↗
2026-09-14Romano GianlucaSale (S)Ordinary Shares955USD 781.24USD 746,084SEC filing ↗
2026-09-14Morris John ChristopherSale (S)Ordinary Shares493USD 781.23USD 384,951SEC filing ↗
2026-09-14MOSLEY WILLIAM DSale (S)Ordinary Shares1,870USD 781.23USD 1,460,705SEC filing ↗
2026-09-11Teh Ban SengOption exercise / conversion (M)Ordinary Shares989USD 0.00USD 0SEC filing ↗
2026-09-11Romano GianlucaSale (S)Ordinary Shares4,600USD 854.55USD 3,930,946SEC filing ↗
2026-09-11Romano GianlucaSale (S)Ordinary Shares45,898USD 830.01USD 38,095,906SEC filing ↗
2026-09-11Romano GianlucaOption exercise / conversion (M)Ordinary Shares1,695USD 0.00USD 0SEC filing ↗
2026-09-11Romano GianlucaOption exercise / conversion (M)Ordinary Shares50,498USD 99.99USD 5,049,478SEC filing ↗
2026-09-11Morris John ChristopherOption exercise / conversion (M)Ordinary Shares942USD 0.00USD 0SEC filing ↗
2026-09-11MOSLEY WILLIAM DOption exercise / conversion (M)Ordinary Shares3,319USD 0.00USD 0SEC filing ↗
2026-09-11Chong Kian FattOption exercise / conversion (M)Ordinary Shares678USD 0.00USD 0SEC filing ↗
2026-09-10Teh Ban SengSale (S)Ordinary Shares663USD 860.09USD 570,240SEC filing ↗
2026-09-10Romano GianlucaSale (S)Ordinary Shares1,348USD 862.13USD 1,162,151SEC filing ↗
2026-09-10Morris John ChristopherSale (S)Ordinary Shares572USD 862.14USD 493,357SEC filing ↗
2026-09-10MOSLEY WILLIAM DSale (S)Ordinary Shares2,849USD 862.13USD 2,456,437SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerSTX
CIK0001137789
SectorTechnology
IndustryComputer Hardware Yahoo Finance
SEC SIC3572 Computer Storage Devices
ExchangeNasdaq

Data coverage

Local Form 4 history1,806 transaction lines from 2020-01-02 to 2026-10-01
2 P purchase lines · 1,033 S sale lines · 771 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.