XTX Topco Ltd BCAB — BIOATLA INC

Ownership history in XTX Topco Ltd  ·  10 quarters on record

AI Ownership Summary

XTX Topco Ltd reported BIOATLA INC (BCAB) in 10 quarterly 13F filings from 2024 Q1 through 2026 Q1. Peak portfolio weight reached 0.08% in 2024 Q1. The latest visible filing shows BCAB 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 BCAB ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was XTX Topco Ltd's position in BIOATLA 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

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

High-water mark
Peak Conviction
0.08% in 2024 Q1

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

Time in book
Holding Window
2024 Q1 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.

BCAB stock page XTX Topco Ltd fund profile XTX Topco Ltd full holdings
How XTX Topco Ltd held BCAB — position size vs. price
% of Fund (quarterly)    BCAB 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 REDUCED — — — 56,614 -3,781 -6.3% 0.00% $9K 2026-05-15 $4.27
2025 Q4 ADDED — — — 60,395 +41,015 +211.6% 0.00% $34K 2026-02-17 $7.05
2025 Q3 REDUCED 87.5% +13.9% ❌ 19,380 -135,587 -87.5% 0.00% $13K 2025-11-14 $39.50
2024 Q3 ADDED — — — 154,967 +10,384 +7.2% 0.02% $273K 2024-11-14 $85.50
2024 Q2 REDUCED 12.0% +28.5% ❌ 144,583 -19,784 -12.0% 0.02% $198K 2024-08-12 $69.50
2024 Q1 ADDED — — — 164,367 +127,376 +344.3% 0.08% $565K 2024-05-13 $132.00
4 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding BCAB

As of 2026 Q1 — sorted by position size

ACORN CAPITAL ADVISORS, LLC 0.25% Stonepine Capital Management, LLC 3Y 7Y 0.0% Torrey Growth & Income Advisors 0.0% ACADIAN ASSET MANAGEMENT LLC 3Y 7Y 0.0% Magnus Financial Group LLC 3Y 7Y 0.0% StoneX Group Inc. 3Y 7Y 0.0% MILLENNIUM MANAGEMENT LLC 3Y 7Y 0.0% RENAISSANCE TECHNOLOGIES LLC 3Y 7Y 0.0% Tower Research Capital LLC (TRC) 3Y 7Y 0.0% MAI Capital Management 3Y 7Y 0.0%

FAQ About XTX Topco Ltd and BCAB

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

How long has XTX Topco Ltd reported owning BCAB?

XTX Topco Ltd reported BCAB across 6 quarterly 13F filings, from 2024 Q1 through 2026 Q1.

What was the largest reported BCAB position in XTX Topco Ltd's portfolio?

The largest reported portfolio weight for BCAB was 0.08% in 2024 Q1.

What is the latest reported BCAB position on this page?

The most recent filing on this page is 2026 Q1, when XTX Topco Ltd reported 56,614 shares, equal to 0.00% of portfolio, with an estimated market value of $9K.

What does the chart on this BCAB ownership page compare?

The chart compares XTX Topco Ltd's quarterly BCAB 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 XTX Topco Ltd time their BCAB position?

Based on 13F filing dates vs. subsequent BCAB price moves, XTX Topco Ltd correctly timed 2 out of 9 reported position changes (22%). The annualised alpha on BCAB relative to SPY over the holding period was -58.3%.

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