STX SEAGATE TECHNOLOGY PLC

Ownership history in Twin Tree Management, LP  ·  73 quarters on record

AI Ownership Summary

Twin Tree Management, LP reported SEAGATE TECHNOLOGY PLC (STX) in 73 quarterly 13F filings from 2024 Q1 through 2025 Q4. Peak portfolio weight reached 0.17% in 2025 Q3. The latest visible filing shows STX at 0.05% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this STX ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was Twin Tree Management, LP's position in SEAGATE TECHNOLOGY PLC, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2025 Q4

STX was reported at 0.05% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.17% in 2025 Q3

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2024 Q1 to 2025 Q4

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

How Twin Tree Management, LP held STX — position size vs. price
% of Fund (quarterly)    STX price (quarter-end, indexed to 100)
📋 Quarterly Holdings History 11 quarters  
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 ADDED 19,400 +9,900 +104.2% 0.05% $5.3M 2026-02-14 (Est.) $425.99
2025 Q4 REDUCED 9,500 -136,700 -93.5% 0.02% $2.6M 2026-02-14 (Est.) $425.99
2025 Q3 REDUCED 146,200 -24,797 -14.5% 0.14% $34.5M 2025-11-13 $261.87
2025 Q3 REDUCED 170,997 -127,703 -42.8% 0.17% $40.4M 2025-11-13 $261.87
2025 Q2 ADDED 298,700 +6,800 +2.3% 0.08% $43.1M 2025-07-28 $149.59
2025 Q2 ADDED 291,900 +291,800 +291800.0% 0.08% $42.1M 2025-07-28 $149.59
2025 Q1 REDUCED 100 -79,600 -99.9% 0.00% $8K 2025-05-15 $106.25
2024 Q4 ADDED 79,700 +12,900 +19.3% 0.01% $6.9M 2025-02-10 $95.94
2024 Q3 REDUCED 66,800 -22,991 -25.6% 0.01% $7.3M 2024-11-13 $95.69
2024 Q3 REDUCED 89,791 -117,615 -56.7% 0.02% $9.8M 2024-11-13 $95.69
2024 Q1 ADDED 207,406 +68,696 +49.5% 0.04% $19.3M 2024-05-09 $88.08
62 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

FAQ About Twin Tree Management, LP and STX

These are the practical questions this page is built to answer before you even open the full history table.

How long has Twin Tree Management, LP reported owning STX?

Twin Tree Management, LP reported STX across 11 quarterly 13F filings, from 2024 Q1 through 2025 Q4.

What was the largest reported STX position in Twin Tree Management, LP's portfolio?

The largest reported portfolio weight for STX was 0.17% in 2025 Q3.

What is the latest reported STX position on this page?

The most recent filing on this page is 2025 Q4, when Twin Tree Management, LP reported 19,400 shares, equal to 0.05% of portfolio, with an estimated market value of $5.3M.

What does the chart on this STX ownership page compare?

The chart compares Twin Tree Management, LP's quarterly STX portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

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