Merck & Co., Inc. ALEC — ALECTOR INC

Ownership history in Merck & Co., Inc.  ·  6 quarters on record

AI Ownership Summary

Merck & Co., Inc. reported ALECTOR INC (ALEC) in 6 quarterly 13F filings from 2024 Q4 through 2026 Q1. Peak portfolio weight reached 4.6% in 2025 Q3. The latest visible filing shows ALEC at 2.18% 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 ALEC ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was Merck & Co., Inc.'s position in ALECTOR 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

ALEC was reported at 2.18% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
4.6% in 2025 Q3

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

Time in book
Holding Window
2024 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.

ALEC stock page Merck & Co., Inc. fund profile Merck & Co., Inc. full holdings
How Merck & Co., Inc. held ALEC — position size vs. price
% of Fund (quarterly)    ALEC price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 6 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 UNCHANGED — — — 3,545,719 — 0% 2.18% $7.6M 2026-05-13 $2.15
2025 Q4 UNCHANGED — — — 3,545,719 — 0% 2.00% $5.5M 2026-02-17 $1.97
2025 Q3 UNCHANGED — — — 3,545,719 — 0% 4.60% $10.5M 2025-11-12 $1.34
2025 Q2 UNCHANGED — — — 3,545,719 — 0% 2.30% $5.0M 2025-08-13 $2.18
2025 Q1 UNCHANGED — — — 3,545,719 — 0% 2.65% $4.4M 2025-05-14 $1.07
2024 Q4 INITIATED — — — 3,545,719 — — 2.60% $6.7M 2025-02-14 $1.70

🏢 Other funds also holding ALEC

As of 2026 Q1 — sorted by position size

MEDICI CAPITAL LLC 3Y 4.37% Foresite Capital Management IV, LLC 3Y 7Y 3.53% Spruce Street Capital LP 1.09% Euclidean Capital LLC 3Y 0.72% TCG Crossover Management, LLC 3Y 0.62% Elmind Capital, LP 0.55% DAFNA Capital Management LLC 3Y 7Y 0.44% NANO CAP NEW MILLENNIUM GROWTH FUND L P 0.4% Ikarian Capital, LLC 3Y 0.36% 683 Capital Management, LLC 3Y 7Y 0.36%

FAQ About Merck & Co., Inc. and ALEC

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

How long has Merck & Co., Inc. reported owning ALEC?

Merck & Co., Inc. reported ALEC across 6 quarterly 13F filings, from 2024 Q4 through 2026 Q1.

What was the largest reported ALEC position in Merck & Co., Inc.'s portfolio?

The largest reported portfolio weight for ALEC was 4.60% in 2025 Q3.

What is the latest reported ALEC position on this page?

The most recent filing on this page is 2026 Q1, when Merck & Co., Inc. reported 3,545,719 shares, equal to 2.18% of portfolio, with an estimated market value of $7.6M.

What does the chart on this ALEC ownership page compare?

The chart compares Merck & Co., Inc.'s quarterly ALEC 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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