Seagate stock rises as investors focus on new 44TB HAMR drive shipments and tightening nearline HDD outlook

Seagate Technology Holdings plc (STX) is up 3.0% today. Here is some analysis on what might have caused this price movement.

Analysis: The move appears tied to renewed optimism around Seagate’s HAMR roadmap and hyperscaler demand after the company disclosed volume shipments of its highest-capacity Mozaic 4+ drives. Recent commentary about nearline demand staying ahead of supply, alongside supportive analyst price-target actions, may also be contributing to the rebound.

Details:

Seagate said it is shipping Mozaic 4+ hard drives supporting up to 44TB in volume to two leading hyperscale cloud providers, highlighting momentum for its next-generation platform.

The Mozaic 4+ platform is based on heat-assisted magnetic recording (HAMR), which investors often view as a key driver for higher capacity-per-drive and better economics for AI-driven data storage.

Management commentary at an investor event highlighted an outlook where nearline demand remains above supply, with a continued focus on pricing discipline and mix toward higher-capacity products.

Analyst actions in recent weeks (including a notable price-target increase while maintaining a neutral stance) may have reinforced sentiment around the cycle upturn and technology leadership.

Sources:

Seagate Investor Relations, Defense World, TipRanks

Disclaimer: This price movement analysis was generated with the help of AI. Please double-check the information provided for mistakes.

$STX Insider Trading Activity

$STX insiders have traded $STX stock on the open market 147 times in the past 6 months. Of those trades, 0 have been purchases and 147 have been sales.

Here’s a breakdown of recent trading of $STX stock by insiders over the last 6 months:

WILLIAM D MOSLEY (CEO) has made 0 purchases and 89 sales selling 120,000 shares for an estimated $37,666,887.
GIANLUCA ROMANO (EVP & CFO) has made 0 purchases and 30 sales selling 62,023 shares for an estimated $17,538,753.
BAN SENG TEH (EVP & Chief Commercial Officer) has made 0 purchases and 10 sales selling 42,952 shares for an estimated $14,315,619.
KIAN FATT CHONG (EVP Global Operations) has made 0 purchases and 2 sales selling 12,924 shares for an estimated $4,360,949.
JOHN CHRISTOPHER MORRIS (EVP & CTO) has made 0 purchases and 8 sales selling 16,077 shares for an estimated $3,215,978.
SHANKAR ARUMUGAVELU sold 5,000 shares for an estimated $1,472,825
JAY L GELDMACHER has made 0 purchases and 2 sales selling 2,175 shares for an estimated $750,798.
STEPHANIE TILENIUS sold 2,046 shares for an estimated $545,084
YOLANDA LEE CONYERS has made 0 purchases and 2 sales selling 1,500 shares for an estimated $499,875.
JAMES CI LEE (EVP & CLO) has made 0 purchases and 2 sales selling 1,370 shares for an estimated $436,195.

To track insider transactions, check out Quiver Quantitative's insider trading dashboard.

$STX Hedge Fund Activity

We have seen 641 institutional investors add shares of $STX stock to their portfolio, and 558 decrease their positions in their most recent quarter.

Here are some of the largest recent moves:

JPMORGAN CHASE & CO removed 6,934,821 shares (-49.8%) from their portfolio in Q4 2025, for an estimated $1,909,780,355
DZ BANK AG DEUTSCHE ZENTRAL GENOSSENSCHAFTS BANK, FRANKFURT AM MAIN added 4,426,486 shares (+447.2%) to their portfolio in Q4 2025, for an estimated $1,219,009,979
UBS AM, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS LLC removed 4,341,928 shares (-74.6%) from their portfolio in Q4 2025, for an estimated $1,195,723,551
FRANKLIN RESOURCES INC removed 4,041,090 shares (-50.1%) from their portfolio in Q4 2025, for an estimated $1,112,875,775
BANK OF AMERICA CORP /DE/ removed 3,309,305 shares (-43.6%) from their portfolio in Q4 2025, for an estimated $911,349,503
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ added 1,883,769 shares (+1510.1%) to their portfolio in Q4 2025, for an estimated $518,771,144
FMR LLC added 1,778,433 shares (+89.8%) to their portfolio in Q4 2025, for an estimated $489,762,663

To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard.

$STX Congressional Stock Trading

Members of Congress have traded $STX stock 3 times in the past 6 months. Of those trades, 0 have been purchases and 3 have been sales.

Here’s a breakdown of recent trading of $STX stock by members of Congress over the last 6 months:

REPRESENTATIVE JULIE JOHNSON has traded it 2 times. They made 0 purchases and 2 sales worth up to $30,000 on 12/18, 11/13.
REPRESENTATIVE KEVIN HERN sold up to $50,000 on 10/28.

To track congressional stock trading, check out Quiver Quantitative's congressional trading dashboard.

$STX Analyst Ratings

Wall Street analysts have issued reports on $STX in the last several months. We have seen 11 firms issue buy ratings on the stock, and 1 firms issue sell ratings.

Here are some recent analyst ratings:

Rosenblatt issued a "Buy" rating on 01/28/2026
Morgan Stanley issued a "Overweight" rating on 01/22/2026
B of A Securities issued a "Buy" rating on 01/20/2026
Citigroup issued a "Buy" rating on 01/20/2026
China Renaissance issued a "Buy" rating on 12/05/2025
Loop Capital issued a "Buy" rating on 11/10/2025
Susquehanna issued a "Negative" rating on 10/29/2025

To track analyst ratings and price targets for $STX, check out Quiver Quantitative's $STX forecast page.

$STX Price Targets

Multiple analysts have issued price targets for $STX recently. We have seen 18 analysts offer price targets for $STX in the last 6 months, with a median target of $392.5.

Here are some recent targets:

Vijay Rakesh from Mizuho set a target price of $475.0 on 02/17/2026
Asiya Merchant from Citigroup set a target price of $480.0 on 02/06/2026
C.J. Muse from Cantor Fitzgerald set a target price of $650.0 on 02/04/2026
Tristan Gerra from Baird set a target price of $505.0 on 01/29/2026
Timothy Arcuri from UBS set a target price of $385.0 on 01/28/2026
Aaron Rakers from Wells Fargo set a target price of $450.0 on 01/28/2026
Tom O'Malley from Barclays set a target price of $425.0 on 01/28/2026

This article is not financial advice. See Quiver Quantitative's disclaimers for more information. Note that there may be inaccuracies due to mistakes in ticker-mapping, and other anomalies.