Carnegie Lake Advisors LLC AVTR — AVANTOR INC

Ownership history in Carnegie Lake Advisors LLC  ·  4 quarters on record

AI Ownership Summary

Carnegie Lake Advisors LLC reported AVANTOR INC (AVTR) in 4 quarterly 13F filings from 2025 Q3 through 2026 Q2. Peak portfolio weight reached 0.44% in 2026 Q2. The latest visible filing shows AVTR at 0.44% 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 AVTR ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was Carnegie Lake Advisors LLC's position in AVANTOR 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

AVTR was reported at 0.44% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.44% in 2026 Q2

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2025 Q3 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.

AVTR stock page Carnegie Lake Advisors LLC fund profile Carnegie Lake Advisors LLC full holdings
How Carnegie Lake Advisors LLC held AVTR — position size vs. price
% of Fund (quarterly)    AVTR price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 4 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q2 ADDED — — — 118,300 +14,700 +14.2% 0.44% $1.2M 2026-07-24 $nan
2026 Q1 ADDED — — — 103,600 +40,000 +62.9% 0.32% $812K 2026-04-29 $7.85
2025 Q4 ADDED — — — 63,600 +23,900 +60.2% 0.28% $729K 2026-02-10 $11.16
2025 Q3 INITIATED — — — 39,700 — — 0.19% $495K 2025-10-20 $15.18

🏢 Other funds also holding AVTR

As of 2026 Q2 — sorted by position size

Olstein Capital Management, L.P. 3Y 7Y 2.07% VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. 3Y 7Y 0.65% EASTERLY INVESTMENT PARTNERS LLC 3Y 7Y 0.35% Capricorn Fund Managers Ltd 3Y 0.23% DeDora Capital, Inc. 3Y 7Y 0.07% Sivia Capital Partners, LLC 0.06% CAISSE DES DEPOTS ET CONSIGNATIONS 0.05% TERRIL BROTHERS, INC. 3Y 7Y 0.04% First Bank & Trust 3Y 7Y 0.04% Central Pacific Bank - Trust Division 0.03%

FAQ About Carnegie Lake Advisors LLC and AVTR

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

How long has Carnegie Lake Advisors LLC reported owning AVTR?

Carnegie Lake Advisors LLC reported AVTR across 4 quarterly 13F filings, from 2025 Q3 through 2026 Q2.

What was the largest reported AVTR position in Carnegie Lake Advisors LLC's portfolio?

The largest reported portfolio weight for AVTR was 0.44% in 2026 Q2.

What is the latest reported AVTR position on this page?

The most recent filing on this page is 2026 Q2, when Carnegie Lake Advisors LLC reported 118,300 shares, equal to 0.44% of portfolio, with an estimated market value of $1.2M.

What does the chart on this AVTR ownership page compare?

The chart compares Carnegie Lake Advisors LLC's quarterly AVTR 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 Carnegie Lake Advisors LLC time their AVTR position?

Based on 13F filing dates vs. subsequent AVTR price moves, Carnegie Lake Advisors LLC correctly timed 0 out of 3 reported position changes (0%).

← Back to Carnegie Lake Advisors LLC Holdings