Niki BiosolutionsNIKI

13F holders, Q2 2026 (June 30)
5holders −3
2new positions
5sold out
1famous investor
$0.78avg. 13F price*

At the end of Q2 2026, 5 institutions reported holding Niki Biosolutions Inc. (NIKI) in their 13F filings, down 3 from Q1 2026. 2 opened new positions and 5 sold out. The largest holders were Jane Street Group, LLC ($46K), Citadel Advisors ($19K) and Citigroup Inc. ($5K). One famous investor held it Ken Griffin (0.0% of Citadel Advisors's portfolio).

Company
Niki Biosolutions Inc.
Filed as
APTORUM GROUP LIMITED (Q2 2026)
CUSIP
G6096M122
Latest filing quarter
Q2 2026

History

Number of 13F holders

02468 Q1 2024: 5Q1 2024Q2 2024: 4Q2 2024Q3 2024: 2Q3 2024Q4 2024: 4Q4 2024Q1 2025: 8Q1 2025Q2 2025: 4Q2 2025Q3 2025: 3Q3 2025Q4 2025: 7Q4 2025Q1 2026: 8Q1 2026Q2 2026: 5Q2 2026

Total Exit/New Position Q1 2026 → Q2 2026

InstitutionsTotal Value
New Positions2$51K
Exits5$47K

All 13F filers, Q1 2026 → Q2 2026: 64,859 shares bought and 126,495 shares sold, net −61,636 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 5 holders

Jane Street Group, LLC 0.00% New 58,461 $46K
Citadel Advisors 0.00% Reduce -73.5% 24,492 $19K
Citigroup Inc. 0.00% New 6,398 $5K
Osaic Holdings, Inc. 0.00% No change 5,500 $4K
SBI Securities Co., Ltd. 0.00% No change 7 $5

"% of holder's portfolio" is NIKI's weight in each manager's 13F, not the share of Niki Biosolutions Inc. the manager owns.