Chesley Taft & Associates LLC FSLR — First Solar, Inc.

Ownership history in Chesley Taft & Associates LLC  ·  20 quarters on record

AI Ownership Summary

Chesley Taft & Associates LLC reported First Solar, Inc. (FSLR) in 20 quarterly 13F filings from 2024 Q1 through 2026 Q2. Peak portfolio weight reached 0.15% in 2025 Q4. The latest visible filing shows FSLR at 0.13% 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 FSLR ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was Chesley Taft & Associates LLC's position in First Solar, 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 Q2

FSLR was reported at 0.13% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.15% 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 2026 Q2

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.

FSLR stock page Chesley Taft & Associates LLC fund profile Chesley Taft & Associates LLC full holdings
How Chesley Taft & Associates LLC held FSLR — position size vs. price
% of Fund (quarterly)    FSLR 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 Q2 ADDED — — — 14,359 +223 +1.6% 0.13% $3.4M 2026-07-08 $224.30
2026 Q1 REDUCED — — — 14,136 -76 -0.5% 0.12% $2.8M 2026-04-13 $200.35
2025 Q4 ADDED — — — 14,212 +760 +5.6% 0.15% $3.7M 2026-01-14 $236.45
2025 Q3 ADDED — — — 13,452 +286 +2.2% 0.13% $3.0M 2025-10-08 $231.37
2025 Q2 ADDED — — — 13,166 +327 +2.5% 0.10% $2.2M 2025-07-09 $165.99
2025 Q1 ADDED — — — 12,839 +2,109 +19.7% 0.08% $1.6M 2025-04-10 $122.19
2024 Q4 ADDED — — — 10,730 +413 +4.0% 0.09% $1.9M 2025-01-17 $192.88
2024 Q3 ADDED — — — 10,317 +395 +4.0% 0.12% $2.6M 2024-10-07 $229.62
2024 Q2 ADDED — — — 9,922 +168 +1.7% 0.11% $2.2M 2024-07-19 $216.43
2024 Q1 ADDED — — — 9,754 +10 +0.1% 0.08% $1.6M 2024-04-16 $173.08
10 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding FSLR

As of 2026 Q2 — sorted by position size

Mader & Shannon Wealth Management, Inc. 3Y 7Y 2.6% CONTRAVISORY INVESTMENT MANAGEMENT, INC. 3Y 7Y 0.16% Pine Haven Investment Counsel, Inc 3Y 0.15% KERR FINANCIAL PLANNING Corp 0.13% TrueWealth Advisors, LLC 3Y 0.11% Kozak & Associates, Inc. 3Y 0.11% Mirador Capital Partners LP 3Y 7Y 0.1% NORTHBRIDGE FINANCIAL GROUP, LLC 0.09% Green Ridge Wealth Planning LLC 0.08% Bangor Savings Bank 3Y 7Y 0.08%

FAQ About Chesley Taft & Associates LLC and FSLR

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

How long has Chesley Taft & Associates LLC reported owning FSLR?

Chesley Taft & Associates LLC reported FSLR across 10 quarterly 13F filings, from 2024 Q1 through 2026 Q2.

What was the largest reported FSLR position in Chesley Taft & Associates LLC's portfolio?

The largest reported portfolio weight for FSLR was 0.15% in 2025 Q4.

What is the latest reported FSLR position on this page?

The most recent filing on this page is 2026 Q2, when Chesley Taft & Associates LLC reported 14,359 shares, equal to 0.13% of portfolio, with an estimated market value of $3.4M.

What does the chart on this FSLR ownership page compare?

The chart compares Chesley Taft & Associates LLC's quarterly FSLR 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 Chesley Taft & Associates LLC time their FSLR position?

Based on 13F filing dates vs. subsequent FSLR price moves, Chesley Taft & Associates LLC correctly timed 8 out of 18 reported position changes (44%). The annualised alpha on FSLR relative to SPY over the holding period was +94.3%.

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