Form 13-F position report

BIOATLA INC

Reported by NORTHERN TRUST CORPORATION

Company profile Manager portfolio Source filing
BCAB CUSIP 09077B104 Manager CIK 0000073124
Latest reported change

Reported 103,494 shares, up 2,666 (2.6%) from the prior quarter.

Reported value -15.3%; share count 2.6% vs. the prior quarter.

Added
% of reported 13F value < 0.01% This manager · Q4 2025
Shares 103,494 Quarter-end amount reported
Reported value $58,754 Fair value at quarter end
Consecutive quarters held 20 Through Q4 2025

Reported position value by quarter

Reported position value by quarter

Each bar is a Form 13-F quarter-end snapshot. It does not show trades made within the quarter.

Manager history

Quarterly position history

How this manager's reported quarter-end position changed over time.

20 quarters
Quarter Activity Shares Change % of reported 13F Reported value Filed
Q2 2026 Reduced 0 -103,494 (-100.0%) 0 $0 2026-08-13
Q1 2026 Unchanged 103,494 0 (0.0%) < 0.01% $16,663 2026-05-14
Q4 2025 Added 103,494 +2,666 (2.6%) < 0.01% $58,754 2026-02-17
Q3 2025 Unchanged 100,828 0 (0.0%) < 0.01% $69,360 2025-11-14
Q2 2025 Unchanged 100,828 0 (0.0%) < 0.01% $39,928 2025-08-13
Q1 2025 Added 100,828 +6 (0.0%) < 0.01% $34,967 2025-05-13
Q4 2024 Added 100,822 +12,041 (13.6%) < 0.01% $59,606 2025-02-14
Q3 2024 Reduced 88,781 -238,763 (-72.9%) < 0.01% $156,254 2024-11-13
Q2 2024 Reduced 327,544 -26,396 (-7.5%) < 0.01% $448,736 2024-08-14
Q1 2024 Reduced 353,940 -1,954 (-0.5%) < 0.01% $1,217,553 2024-05-14
Q4 2023 Reduced 355,894 -1,466 (-0.4%) < 0.01% $875,499 2024-02-13
Q3 2023 Reduced 357,360 -7,418 (-2.0%) < 0.01% $607,512 2023-11-13
Q2 2023 Added 364,778 +274,377 (303.5%) < 0.01% $1,094,334 2023-08-11
Q1 2023 Added 90,401 +5,018 (5.9%) < 0.01% $242,275 2023-05-15
Q4 2022 Added 85,383 +13,528 (18.8%) < 0.01% $704,410 2023-02-13
Q3 2022 Added 71,855 +18,072 (33.6%) < 0.01% $553,000 2022-11-14
Q2 2022 Reduced 53,783 -120,288 (-69.1%) < 0.01% $153,000 2022-08-12
Q1 2022 Reduced 174,071 -5,977 (-3.3%) < 0.01% $871,000 2022-05-13
Q4 2021 Added 180,048 +3,848 (2.2%) < 0.01% $3,535,000 2022-02-08
Q3 2021 Added 176,200 +29,048 (19.7%) < 0.01% $5,187,000 2021-11-15
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Institutional context

Who else reported the position

48 managers reported BIOATLA INC for Q4 2025.

Manager Activity Shares Change % of reported 13F Reported value Tenure
ACORN CAPITAL ADVISORS LLC Unchanged 4,835,111 0 0.93% $2,756,013 5 qtrs
VANGUARD GROUP INC Unchanged 1,945,795 0 < 0.01% $1,105,212 21 qtrs
MARSHALL WACE LLP New 891,580 +891,580 < 0.01% $508,201 6 qtrs
MILLENNIUM MANAGEMENT LLC Added 762,394 +421,072 < 0.01% $432,811 21 qtrs
ACADIAN ASSET MANAGEMENT LLC Reduced 757,671 -172,791 < 0.01% $429,000 9 qtrs
RENAISSANCE TECHNOLOGIES LLC Reduced 707,214 -93,417 < 0.01% $401,485 17 qtrs
DEUTSCHE BANK AG Unchanged 525,353 0 < 0.01% $299,451 20 qtrs
GEODE CAPITAL MANAGEMENT LLC Added 500,328 +5,117 < 0.01% $284,096 21 qtrs
BlackRock Inc Unchanged 480,933 0 < 0.01% $273,026 6 qtrs
JANE STREET GROUP LLC Added 346,774 +152,397 < 0.01% $196,863 20 qtrs
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Filing details and methodology As reported
Report period
December 31, 2025
Filed
February 17, 2026
Filing type
13F-HR
Position type
COM

Voting authority reported

Sole
103,494
Shared
0
None
0

“None” means the manager reported no voting authority for those shares on non-routine matters. It does not disclose why and is not evidence of securities lending.

Form 13-F is a delayed quarter-end snapshot of disclosed long Section 13(f) securities. It can be filed up to 45 days after quarter end, excludes short positions and most non-U.S. securities, and does not reveal intra-quarter trading. For options, reported shares and value describe the underlying-share exposure; strike, expiry, premium, and written positions are not disclosed.