STX — Seagate Technology Holdings plc

US Technology Computers & hardware equity mkt cap 192.7B
850.00 -0.03% today
USD · as of 2026-08-21

Price · 2024-08-26 → 2026-08-21

499 daily closes shown
52w low 154.60 · high 1,094.04

Anonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2016-01-04.

Performance

1 day-0.03%
1 week-12.68%
1 month-6.94%
3 months+4.88%
6 months+106.76%
Year to date+195.61%
1 year+436.62%
3 years+1224.19%
5 years+840.89%

Technicals

RSI 1452.0
vs 50-day avg-4.65%
vs 200-day avg+50.21%
Volatility 1y74.0%
Max drawdown 1y-31.86%
Avg volume 30d5.2M
Daily bars held2,674
History from2016-01-04

Dividends

Yield (trailing 12m)0.43%
Paid last 12m3.6800
Payments in 12m5
Paying since2016-02-05

Measured signals that fired on STX

datesignal measured base rate
2026-08-19Fair value gap, bearish
structure
-0.45% over 21 days · t = -3.29 · n = 108,591
statistically distinguishable from its control group
2026-08-17Fair value gap, bullish
structure
-0.67% over 21 days · t = -6.43 · n = 111,973
statistically distinguishable from its control group
2026-07-16Fair value gap, bearish
structure
-0.45% over 21 days · t = -3.29 · n = 108,591
statistically distinguishable from its control group
2026-07-09Fair value gap, bullish
structure
-0.67% over 21 days · t = -6.43 · n = 111,973
statistically distinguishable from its control group
2026-06-18Equal highs taken out
structure
-0.70% over 21 days · t = -8.28 · n = 68,636
statistically distinguishable from its control group
2026-06-15Fair value gap, bullish
structure
-0.67% over 21 days · t = -6.43 · n = 111,973
statistically distinguishable from its control group

Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →

Insider transactions (Form 4)

dateinsiderwhatshares pricevalue
2026-08-13Teh Ban Seng
EVP & Chief Commercial Officer
Open-market sale6.0K920.145.5M
2026-08-13Teh Ban Seng
EVP & Chief Commercial Officer
Open-market sale1.4K923.731.3M
2026-08-13Teh Ban Seng
EVP & Chief Commercial Officer
Option exercise1.8K101.34179.3K
2026-08-13Teh Ban Seng
EVP & Chief Commercial Officer
Option exercise2.6K64.31169.5K
2026-08-13Teh Ban Seng
EVP & Chief Commercial Officer
Option exercise1.6K68.83109.9K
2026-08-07Romano Gianluca
EVP & CFO
Open-market sale 10b5-1 plan1.2K803.82986.3K
2026-08-07Romano Gianluca
EVP & CFO
Open-market sale 10b5-1 plan1.1K805.89923.5K
2026-08-07Romano Gianluca
EVP & CFO
Open-market sale 10b5-1 plan920814.42749.3K
2026-08-07Romano Gianluca
EVP & CFO
Open-market sale 10b5-1 plan840806.80677.7K
2026-08-07Romano Gianluca
EVP & CFO
Open-market sale 10b5-1 plan767801.71614.9K

Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →

Largest institutional holders

managervalueshares
BlackRock, Inc.5.6B14.3M
VANGUARD CAPITAL MANAGEMENT LLC5.5B14.2M
Sanders Capital, LLC5.1B12.9M
VANGUARD PORTFOLIO MANAGEMENT LLC4.3B11.1M
STATE STREET CORP3.7B9.3M
FMR LLC3.2B8.2M
JPMORGAN CHASE & CO2.4B6.7M
Capital Research Global Investors2.2B5.7M
GEODE CAPITAL MANAGEMENT, LLC2.0B5.1M
MORGAN STANLEY1.9B4.8M

13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →

Short selling

Avg short volume, 90d36.8% of tape
Days observed61

This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →

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