M&T BANK CORP ANET ARISTA NETWORKS INC

Ownership history in M&T BANK CORP  ·  40 quarters on record

AI Ownership Summary

M&T BANK CORP reported ARISTA NETWORKS INC (ANET) in 40 quarterly 13F filings from 2023 Q4 through 2026 Q1. Peak portfolio weight reached 3.49% in 2025 Q4. The latest visible filing shows ANET 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 ANET ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was M&T BANK CORP's position in ARISTA NETWORKS 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
2026 Q1

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

High-water mark
Peak Conviction
3.49% 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
2023 Q4 to 2026 Q1

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 M&T BANK CORP held ANET — position size vs. price
% of Fund (quarterly)    ANET price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 10 quarters  
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 REDUCED 117,528 -3,894,845 -97.1% 0.05% $14.4M 2026-05-12 $142.54
2025 Q4 ADDED 4,012,373 +3,890,146 +3182.7% 3.49% $1.09B 2026-01-28 $150.15
2025 Q3 ADDED 122,227 +12,725 +11.6% 0.06% $17.8M 2025-11-14 $131.37
2025 Q2 REDUCED 109,502 -524 -0.5% 0.04% $11.2M 2025-08-13 $138.01
2025 Q1 REDUCED 5.9% +32.0% 110,026 -6,908 -5.9% 0.03% $8.5M 2025-04-30 $82.27
2024 Q4 ADDED 116,934 +58,358 +99.6% 0.04% $12.9M 2025-02-06 $115.27
2024 Q3 ADDED 58,576 +32,553 +125.1% 0.04% $10.7M 2024-11-15 $93.60
2024 Q2 ADDED 26,023 +728 +2.9% 0.03% $9.1M 2024-07-31 $86.64
2024 Q1 REDUCED 47.6% +23.0% 25,295 -22,950 -47.6% 0.03% $7.3M 2024-05-07 $68.50
2023 Q4 ADDED 48,245 +31,386 +186.2% 0.04% $11.4M 2024-02-06 $66.22
30 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

FAQ About M&T BANK CORP and ANET

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

How long has M&T BANK CORP reported owning ANET?

M&T BANK CORP reported ANET across 10 quarterly 13F filings, from 2023 Q4 through 2026 Q1.

What was the largest reported ANET position in M&T BANK CORP's portfolio?

The largest reported portfolio weight for ANET was 3.49% in 2025 Q4.

What is the latest reported ANET position on this page?

The most recent filing on this page is 2026 Q1, when M&T BANK CORP reported 117,528 shares, equal to 0.05% of portfolio, with an estimated market value of $14.4M.

What does the chart on this ANET ownership page compare?

The chart compares M&T BANK CORP's quarterly ANET 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&T BANK CORP time their ANET position?

Based on 13F filing dates vs. subsequent ANET price moves, M&T BANK CORP correctly timed 17 out of 39 reported position changes (44%). The annualised alpha on ANET relative to SPY over the holding period was +20.0%.

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