AlphaQuest LLC KROS — KEROS THERAPEUTICS INC

Ownership history in AlphaQuest LLC  ·  10 quarters on record

AI Ownership Summary

AlphaQuest LLC reported KEROS THERAPEUTICS INC (KROS) in 10 quarterly 13F filings from 2023 Q4 through 2026 Q1. Peak portfolio weight reached 0.04% in 2025 Q4. The latest visible filing shows KROS at 0.04% 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 KROS ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was AlphaQuest LLC's position in KEROS THERAPEUTICS 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

KROS was reported at 0.04% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.04% in 2025 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.

KROS stock page AlphaQuest LLC fund profile AlphaQuest LLC full holdings
How AlphaQuest LLC held KROS — position size vs. price
% of Fund (quarterly)    KROS 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 UNCHANGED — — — 32,090 — 0% 0.04% $653K 2026-04-30 $11.12
2025 Q4 ADDED — — — 32,090 +16,841 +110.4% 0.04% $653K 2026-02-09 $17.53
2025 Q3 REDUCED 41.3% +30.4% ❌ 15,249 -10,709 -41.3% 0.02% $241K 2025-11-03 $15.22
2025 Q2 ADDED — — — 25,958 +12,724 +96.1% 0.03% $347K 2025-07-31 $14.32
2025 Q1 ADDED — — — 13,234 +9,638 +268.0% 0.01% $135K 2025-05-14 $13.59
2024 Q4 ADDED — — — 3,596 +2,964 +469.0% 0.01% $57K 2025-02-07 $10.86
2024 Q3 REDUCED 86.9% -73.1% ✅ 632 -4,177 -86.9% 0.00% $37K 2024-11-07 $67.17
2024 Q2 ADDED — — — 4,809 +4,789 +23945.0% 0.03% $220K 2024-08-06 $48.76
2024 Q1 REDUCED 94.8% -33.9% ✅ 20 -366 -94.8% 0.00% $1K 2024-05-09 $57.60
2023 Q4 INITIATED — — — 386 — — 0.00% $15K 2024-02-09 $53.59

🏢 Other funds also holding KROS

As of 2026 Q1 — sorted by position size

Y-Intercept (Hong Kong) Ltd 3Y 0.03% China Universal Asset Management Co., Ltd. 3Y 0.0% STRS OHIO 3Y 7Y 0.0% Sterling Capital Management LLC 3Y 7Y 0.0% Nuveen, LLC 0.0% Police & Firemen's Retirement System of New Jersey 0.0% IFP Advisors, Inc 3Y 7Y 0.0% HSBC HOLDINGS PLC 3Y 7Y 0.0% Red Tortoise LLC 3Y 0.0% SIGNATUREFD, LLC 3Y 7Y 0.0%

FAQ About AlphaQuest LLC and KROS

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

How long has AlphaQuest LLC reported owning KROS?

AlphaQuest LLC reported KROS across 10 quarterly 13F filings, from 2023 Q4 through 2026 Q1.

What was the largest reported KROS position in AlphaQuest LLC's portfolio?

The largest reported portfolio weight for KROS was 0.04% in 2025 Q4.

What is the latest reported KROS position on this page?

The most recent filing on this page is 2026 Q1, when AlphaQuest LLC reported 32,090 shares, equal to 0.04% of portfolio, with an estimated market value of $653K.

What does the chart on this KROS ownership page compare?

The chart compares AlphaQuest LLC's quarterly KROS 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 AlphaQuest LLC time their KROS position?

Based on 13F filing dates vs. subsequent KROS price moves, AlphaQuest LLC correctly timed 7 out of 9 reported position changes (78%). The annualised alpha on KROS relative to SPY over the holding period was -58.5%.

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