M&G Plc TMO — THERMO FISHER SCIENTIFIC INC

Ownership history in M&G Plc  ·  8 quarters on record

AI Ownership Summary

M&G Plc reported THERMO FISHER SCIENTIFIC INC (TMO) in 8 quarterly 13F filings from 2024 Q1 through 2025 Q4. Peak portfolio weight reached 1.23% in 2025 Q4. The latest visible filing shows TMO at 1.23% 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.

What this TMO ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was M&G Plc's position in THERMO FISHER SCIENTIFIC INC, 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

TMO was reported at 1.23% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
1.23% in 2025 Q4

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.

TMO stock page M&G Plc fund profile M&G Plc full holdings
How M&G Plc held TMO — position size vs. price
% of Fund (quarterly)    TMO price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 8 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 REDUCED 6.5% -15.1% ✅ 412,911 -28,499 -6.5% 1.23% $239.1M 2026-02-14 (Est.) $504.32
2025 Q3 ADDED — — — 441,410 +47,644 +12.1% 1.14% $214.1M 2025-11-07 $571.41
2025 Q2 ADDED — — — 393,766 +275,547 +233.1% 0.88% $159.5M 2025-08-08 $459.51
2025 Q1 REDUCED 5.9% -18.4% ✅ 118,219 -7,366 -5.9% 0.28% $58.9M 2025-05-13 $427.38
2024 Q4 ADDED — — — 125,585 +658 +0.5% 0.40% $65.3M 2025-02-11 $542.77
2024 Q3 REDUCED 8.1% -16.1% ✅ 124,927 -10,947 -8.1% 0.28% $77.3M 2024-10-31 $543.45
2024 Q2 REDUCED 13.2% +11.9% ❌ 135,874 -20,669 -13.2% 0.30% $75.1M 2024-07-16 $552.15
2024 Q1 INITIATED — — — 156,543 — — 0.34% $91.0M 2024-05-10 $589.14

🏢 Other funds also holding TMO

As of 2026 Q1 — sorted by position size

Lindsell Train Ltd 3Y 7Y 9.67% WORMSER FRERES GESTION 7.75% R.H. Dinel Investment Counsel, Inc. 3Y 7Y 7.13% CALEDONIA INVESTMENTS PLC 3Y 7Y 6.42% Rempart Asset Management Inc. 3Y 4.9% James Hambro & Partners LLP 3Y 7Y 4.64% Nexus Investment Management ULC 3Y 7Y 4.6% FLOSSBACH VON STORCH SE 3Y 7Y 4.48% Cohen Capital Management, Inc. 3Y 7Y 4.39% M. Kraus & Co 3Y 7Y 4.28%

FAQ About M&G Plc and TMO

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

How long has M&G Plc reported owning TMO?

M&G Plc reported TMO across 8 quarterly 13F filings, from 2024 Q1 through 2025 Q4.

What was the largest reported TMO position in M&G Plc's portfolio?

The largest reported portfolio weight for TMO was 1.23% in 2025 Q4.

What is the latest reported TMO position on this page?

The most recent filing on this page is 2025 Q4, when M&G Plc reported 412,911 shares, equal to 1.23% of portfolio, with an estimated market value of $239.1M.

What does the chart on this TMO ownership page compare?

The chart compares M&G Plc's quarterly TMO 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.

How well did M&G Plc time their TMO position?

Based on 13F filing dates vs. subsequent TMO price moves, M&G Plc correctly timed 3 out of 7 reported position changes (43%). The annualised alpha on TMO relative to SPY over the holding period was -22.3%.

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