EASTERLY INVESTMENT PARTNERS LLC QTRX — QUANTERIX CORP

Ownership history in EASTERLY INVESTMENT PARTNERS LLC  ·  9 quarters on record

AI Ownership Summary

EASTERLY INVESTMENT PARTNERS LLC reported QUANTERIX CORP (QTRX) in 9 quarterly 13F filings from 2023 Q4 through 2025 Q4. Peak portfolio weight reached 0.91% in 2024 Q3. The latest visible filing shows QTRX at 0.24% 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 QTRX ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was EASTERLY INVESTMENT PARTNERS LLC's position in QUANTERIX CORP, 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
2025 Q4

QTRX was reported at 0.24% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.91% in 2024 Q3

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 2025 Q4

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.

QTRX stock page EASTERLY INVESTMENT PARTNERS LLC fund profile EASTERLY INVESTMENT PARTNERS LLC full holdings
How EASTERLY INVESTMENT PARTNERS LLC held QTRX — position size vs. price
% of Fund (quarterly)    QTRX price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 9 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 REDUCED 50.8% -44.6% ✅ 616,681 -635,503 -50.8% 0.24% $3.9M 2026-02-10 $6.12
2025 Q3 ADDED — — — 1,252,184 +168,549 +15.6% 0.46% $6.8M 2025-11-12 $5.22
2025 Q2 REDUCED 18.3% -21.1% ✅ 1,083,635 -241,985 -18.3% 0.52% $7.2M 2025-07-29 $6.08
2025 Q1 ADDED — — — 1,325,620 +370,625 +38.8% 0.72% $8.6M 2025-05-02 $6.01
2024 Q4 ADDED — — — 954,995 +78,862 +9.0% 0.80% $10.2M 2025-02-12 $7.81
2024 Q3 ADDED — — — 876,133 +183,387 +26.5% 0.91% $11.4M 2024-11-01 $13.43
2024 Q2 ADDED — — — 692,746 +614,012 +779.9% 0.80% $9.2M 2024-07-25 $15.27
2024 Q1 ADDED — — — 78,734 +66,642 +551.1% 0.14% $1.9M 2024-05-03 $17.02
2023 Q4 INITIATED — — — 12,092 — — 0.04% $331K 2024-02-14 $24.68

🏢 Other funds also holding QTRX

As of 2026 Q1 — sorted by position size

Blue Water Life Science Advisors, LP 3Y 6.05% Trium Capital LLP 3Y 2.46% Tikvah Management LLC 3Y 7Y 0.62% Empire Financial Management Company, LLC 3Y 0.59% Portolan Capital Management, LLC 3Y 7Y 0.55% LEVIN CAPITAL STRATEGIES, L.P. 3Y 7Y 0.39% Topline Capital Management, LLC 0.33% Invenomic Capital Management LP 3Y 0.31% Pier Capital, LLC 3Y 7Y 0.29% IRONWOOD INVESTMENT MANAGEMENT LLC 3Y 7Y 0.25%

FAQ About EASTERLY INVESTMENT PARTNERS LLC and QTRX

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

How long has EASTERLY INVESTMENT PARTNERS LLC reported owning QTRX?

EASTERLY INVESTMENT PARTNERS LLC reported QTRX across 9 quarterly 13F filings, from 2023 Q4 through 2025 Q4.

What was the largest reported QTRX position in EASTERLY INVESTMENT PARTNERS LLC's portfolio?

The largest reported portfolio weight for QTRX was 0.91% in 2024 Q3.

What is the latest reported QTRX position on this page?

The most recent filing on this page is 2025 Q4, when EASTERLY INVESTMENT PARTNERS LLC reported 616,681 shares, equal to 0.24% of portfolio, with an estimated market value of $3.9M.

What does the chart on this QTRX ownership page compare?

The chart compares EASTERLY INVESTMENT PARTNERS LLC's quarterly QTRX 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 EASTERLY INVESTMENT PARTNERS LLC time their QTRX position?

Based on 13F filing dates vs. subsequent QTRX price moves, EASTERLY INVESTMENT PARTNERS LLC correctly timed 3 out of 8 reported position changes (38%). The annualised alpha on QTRX relative to SPY over the holding period was -58.4%.

← Back to EASTERLY INVESTMENT PARTNERS LLC Holdings