ACLS — Axcelis Technologies Inc

Ownership history in MassMutual Private Wealth & Trust, FSB  ·  15 quarters on record

AI Ownership Summary

MassMutual Private Wealth & Trust, FSB reported Axcelis Technologies Inc (ACLS) in 15 quarterly 13F filings from 2023 Q4 through 2026 Q1. The latest visible filing shows ACLS at 0.00% 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 ACLS ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was MassMutual Private Wealth & Trust, FSB's position in Axcelis Technologies 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

ACLS was reported at 0.00% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.0% in 2023 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.

ACLS stock page MassMutual Private Wealth & Trust, FSB fund profile MassMutual Private Wealth & Trust, FSB full holdings
How MassMutual Private Wealth & Trust, FSB held ACLS — position size vs. price
% of Fund (quarterly)    ACLS price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 10 quarters  ▾
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 ADDED 512 +28 +5.8% 0.00% $48K 2026-04-13 $110.74
2025 Q4 REDUCED 484 -12 -2.4% 0.00% $39K 2026-01-07 $92.99
2025 Q3 ADDED 496 +15 +3.1% 0.00% $48K 2025-10-22 $81.40
2025 Q2 ADDED 481 +161 +50.3% 0.00% $34K 2025-07-09 $74.37
2025 Q1 ADDED 320 +152 +90.5% 0.00% $16K 2025-04-01 $50.32
2024 Q4 ADDED 168 +46 +37.7% 0.00% $12K 2025-01-16 $71.98
2024 Q3 REDUCED 122 -339 -73.5% 0.00% $13K 2024-10-02 $100.59
2024 Q2 REDUCED 461 -262 -36.2% 0.00% $66K 2024-07-02 $141.22
2024 Q1 REDUCED 723 -207 -22.3% 0.00% $81K 2024-04-09 $108.90
2023 Q4 REDUCED 930 -199 -17.6% 0.00% $121K 2024-01-03 $120.92
5 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding ACLS

As of 2026 Q1 — sorted by position size

REINHART PARTNERS, LLC. 3Y 7Y 4.44% QSM Asset Management Ltd 2.27% MOODY NATIONAL BANK TRUST DIVISION 3Y 7Y 0.09% Perkins Coie Trust Co 3Y 7Y 0.05% Linden Thomas Advisory Services, LLC 3Y 0.04% GAMMA Investing LLC 0.01% Versant Capital Management, Inc 3Y 7Y 0.01% NorthCrest Asset Manangement, LLC 3Y 0.01% Opal Wealth Advisors, LLC 3Y 0.01% Merit Financial Group, LLC 3Y 7Y 0.0%

FAQ About MassMutual Private Wealth & Trust, FSB and ACLS

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

How long has MassMutual Private Wealth & Trust, FSB reported owning ACLS?

MassMutual Private Wealth & Trust, FSB reported ACLS across 10 quarterly 13F filings, from 2023 Q4 through 2026 Q1.

What was the largest reported ACLS position in MassMutual Private Wealth & Trust, FSB's portfolio?

The largest reported portfolio weight for ACLS was 0.00% in 2023 Q4.

What is the latest reported ACLS position on this page?

The most recent filing on this page is 2026 Q1, when MassMutual Private Wealth & Trust, FSB reported 512 shares, equal to 0.00% of portfolio, with an estimated market value of $48K.

What does the chart on this ACLS ownership page compare?

The chart compares MassMutual Private Wealth & Trust, FSB's quarterly ACLS 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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