CITADEL ADVISORS LLC quarter change: USA Stocks, New
In share positions in stocks (listed in the US), from the quarter ended 2025-12-31 to 2026-03-31, CITADEL ADVISORS LLC opened 318 positions, added to 1,461, reduced 1,450, sold out of 375 and left 4 unchanged. The largest increase in value was MU (+$681,688,510); the largest decrease was AMZN (-$1,576,041,905).
- MHH: Country of operation United States; Class COM; Shares 2025-12-31 0; Shares 2026-03-31 10,959.
- MPTI-R: Country of operation United States; Class RIGHT 04/15/2026; Shares 2025-12-31 0; Shares 2026-03-31 28,072.
- FARM: Country of operation United States; Class COM; Shares 2025-12-31 0; Shares 2026-03-31 42,369.
- SIEB: Country of operation United States; Class COM; Shares 2025-12-31 0; Shares 2026-03-31 27,345.
Two Form 13F-HR filings compared (SEC CIK 1423053): 2025-12-31 (filed 2026-02-17) and 2026-03-31 (filed 2026-05-15). Rows for the same security, class and put/call are added together. Value change is the filed value at each quarter end, so it includes the price move; share change is the position change.
| Stock | Country of operation | Class | Shares 2025-12-31 | Shares 2026-03-31 | Share change | Value 2025-12-31 | Value 2026-03-31 | Value change |
|---|
MHH
MASTECH HLDGS INC | United States | COM | 0 | 10,959 | +10,959 | $0 | $62,357 | +$62,357 |
|---|
MPTI-R
M-TRON INDS INC | United States | RIGHT 04/15/2026 | 0 | 28,072 | +28,072 | $0 | $58,951 | +$58,951 |
|---|
FARM
FARMER BROS CO | United States | COM | 0 | 42,369 | +42,369 | $0 | $53,809 | +$53,809 |
|---|
SIEB
SIEBERT FINL CORP | United States | COM | 0 | 27,345 | +27,345 | $0 | $52,502 | +$52,502 |
|---|
LSF
LAIRD SUPERFOOD INC | United States | COM STK | 0 | 20,373 | +20,373 | $0 | $43,802 | +$43,802 |
|---|
AMS
AMERICAN SHARED HOSPITAL SVC | United States | COM | 0 | 28,558 | +28,558 | $0 | $41,409 | +$41,409 |
|---|
STKS
THE ONE GROUP HOSPITALITY IN | United States | COM | 0 | 22,842 | +22,842 | $0 | $40,659 | +$40,659 |
|---|
ATYR
ATYR PHARMA INC | United States | COM NEW | 0 | 47,372 | +47,372 | $0 | $36,950 | +$36,950 |
|---|
LPSN
LIVEPERSON INC | United States | COM | 0 | 12,834 | +12,834 | $0 | $32,727 | +$32,727 |
|---|
MGF
MFS GOVT MKTS INCOME TR | United States | SH BEN INT | 0 | 10,748 | +10,748 | $0 | $31,599 | +$31,599 |
|---|
MCHX
MARCHEX INC | United States | CL B | 0 | 16,629 | +16,629 | $0 | $25,775 | +$25,775 |
|---|
OPAD
OFFERPAD SOLUTIONS INC | United States | COM CL A | 0 | 34,759 | +34,759 | $0 | $22,774 | +$22,774 |
|---|
SMXT
SOLARMAX TECHNOLOGY INC | United States | COM SHS | 0 | 32,015 | +32,015 | $0 | $22,449 | +$22,449 |
|---|
BTCS
BTCS INC | United States | COM NEW | 0 | 14,677 | +14,677 | $0 | $20,401 | +$20,401 |
|---|
HOWL
WEREWOLF THERAPEUTICS INC | United States | COM | 0 | 10,382 | +10,382 | $0 | $8,644 | +$8,644 |
|---|
NXXT
NEXTNRG INC | United States | COM | 0 | 18,761 | +18,761 | $0 | $7,504 | +$7,504 |
|---|
CUBWW
LIONHEART HOLDINGS | United States | *W EXP 06/07/203 | 0 | 26,166 | +26,166 | $0 | $3,140 | +$3,140 |
|---|
XRXDW
XEROX HOLDINGS CORP | United States | *W EXP 02/11/202 | 0 | 33,307 | +33,307 | $0 | $3,014 | +$3,014 |
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