Calamos Wealth Management LLC TMUS — T-MOBILE US INC

Ownership history in Calamos Wealth Management LLC  ·  31 quarters on record

AI Ownership Summary

Calamos Wealth Management LLC reported T-MOBILE US INC (TMUS) in 31 quarterly 13F filings from 2023 Q4 through 2026 Q1. Peak portfolio weight reached 0.79% in 2025 Q1. The latest visible filing shows TMUS at 0.03% 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 TMUS ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was Calamos Wealth Management LLC's position in T-MOBILE US 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

TMUS was reported at 0.03% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.79% in 2025 Q1

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.

TMUS stock page Calamos Wealth Management LLC fund profile Calamos Wealth Management LLC full holdings
How Calamos Wealth Management LLC held TMUS — position size vs. price
% of Fund (quarterly)    TMUS 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 — — — 4,016 -56,153 -93.3% 0.03% $844K 2026-05-04 $194.42
2025 Q4 ADDED — — — 60,169 +83 +0.1% 0.42% $12.2M 2026-01-29 $188.37
2025 Q3 ADDED — — — 60,086 +1,048 +1.8% 0.52% $14.4M 2025-10-20 $227.86
2025 Q2 REDUCED — — — 59,038 -354 -0.6% 0.60% $14.1M 2025-07-29 $236.10
2025 Q1 ADDED — — — 59,392 +8,283 +16.2% 0.79% $15.8M 2025-04-29 $237.53
2024 Q4 REDUCED 22.1% +21.2% ❌ 51,109 -14,488 -22.1% 0.56% $11.3M 2025-01-24 $214.18
2024 Q3 ADDED — — — 65,597 +189 +0.3% 0.69% $13.5M 2024-11-12 $233.36
2024 Q2 ADDED — — — 65,408 +928 +1.4% 0.61% $11.5M 2024-07-25 $170.45
2024 Q1 ADDED — — — 64,480 +454 +0.7% 0.59% $10.5M 2024-05-08 $157.87
2023 Q4 REDUCED — — — 64,026 -611 -0.9% 0.65% $10.3M 2024-01-31 $155.70
21 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding TMUS

As of 2026 Q1 — sorted by position size

Act Two Investors LLC 3Y 7Y 7.03% Overbrook Management Corp 3Y 7Y 3.07% Baker Chad R 3Y 7Y 2.89% Leibman Financial Services, Inc. 2.88% AVAII WEALTH MANAGEMENT, LLC 3Y 2.65% Advanced Asset Management Advisors Inc 3Y 7Y 2.48% HOERTKORN RICHARD CHARLES 3Y 7Y 2.29% Stillwater Capital Advisors, LLC 3Y 7Y 2.22% Reynders McVeigh Capital Management, LLC 3Y 7Y 2.18% Illumine Investment Management, LLC 2.14%

FAQ About Calamos Wealth Management LLC and TMUS

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

How long has Calamos Wealth Management LLC reported owning TMUS?

Calamos Wealth Management LLC reported TMUS across 10 quarterly 13F filings, from 2023 Q4 through 2026 Q1.

What was the largest reported TMUS position in Calamos Wealth Management LLC's portfolio?

The largest reported portfolio weight for TMUS was 0.79% in 2025 Q1.

What is the latest reported TMUS position on this page?

The most recent filing on this page is 2026 Q1, when Calamos Wealth Management LLC reported 4,016 shares, equal to 0.03% of portfolio, with an estimated market value of $844K.

What does the chart on this TMUS ownership page compare?

The chart compares Calamos Wealth Management LLC's quarterly TMUS 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 Calamos Wealth Management LLC time their TMUS position?

Based on 13F filing dates vs. subsequent TMUS price moves, Calamos Wealth Management LLC correctly timed 12 out of 30 reported position changes (40%).

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