Position in AMPH
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$1,283,928
-$4,841,300 QoQ
Shares Held
65,540
-71.3% QoQ
Ownership
0.149%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
24 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in AMPH Over Time
Shares Held
Position Value (USD)
Derivatives in AMPH
reported options exposure · as of Mar 31, 2026CallValue
$389,841
CallShares
19,900
PutValue
$0
PutShares
0
Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.
Position in Drug Manufacturers - Specialty & Generic
Healthcare · as of Mar 31, 2026CITADEL ADVISORS LLC holds $927,090,430 across 59 Drug Manufacturers - Specialty & Generic names. AMPH ranks #34 (0.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | UTHR |
UNITED THERAPEUTICS Corp
|
360,643 | $213,854,086 | |
| 2 | INDV |
Indivior Pharmaceuticals, Inc.
|
3,574,044 | $108,936,860 | |
| 3 | ELAN |
Elanco Animal Health Inc
|
4,387,127 | $104,983,948 | |
| 4 | ALKS |
Alkermes plc.
|
2,241,584 | $79,262,409 | |
| 5 | SUPN |
Supernus Pharmaceuticals, Inc.
|
1,493,446 | $77,196,223 | |
| 6 | ZTS |
Zoetis Inc.
|
501,011 | $59,224,510 | |
| 7 | VTRS |
Viatris Inc
|
3,993,155 | $53,947,523 | |
| 8 | KNSA |
Kiniksa Pharmaceuticals International, plc
|
474,750 | $22,859,212 |
All Filings in AMPH
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,283,928 | 65,540 | Shares | Defined | 2026-05-15 | |
| 2026-03-31 | $389,841 | 19,900 | Call | Defined | 2026-05-15 | |
| 2025-12-31 | $329,394 | 12,300 | Call | Defined | 2026-02-17 | |
| 2025-12-31 | $6,125,228 | 228,724 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 | $402,415 | 15,100 | Call | Defined | 2025-11-14 | |
| 2025-09-30 | $6,043,552 | 226,775 | Shares | Defined | 2025-11-14 | |
| 2025-09-30 | $317,135 | 11,900 | Put | Defined | 2025-11-14 | |
| 2025-06-30 | $282,408 | 12,300 | Put | Defined | 2025-08-14 | |
| 2025-06-30 | $420,168 | 18,300 | Call | Defined | 2025-08-14 | |
| 2025-06-30 | $6,712,240 | 292,345 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $336,284 | 11,600 | Put | Defined | 2025-05-15 | |
| 2025-03-31 | $602,992 | 20,800 | Call | Defined | 2025-05-15 | |
| 2025-03-31 | $4,521,830 | 155,979 | Shares | Defined | 2025-05-15 | |
| 2024-12-31 | $293,327 | 7,900 | Put | Defined | 2025-02-14 | |
| 2024-12-31 | $5,213,534 | 140,413 | Shares | Defined | 2025-02-14 | |
| 2024-12-31 | $452,986 | 12,200 | Call | Defined | 2025-02-14 | |
| 2024-09-30 | $6,563,050 | 135,237 | Shares | Defined | 2024-11-14 | |
| 2024-09-30 | $1,193,838 | 24,600 | Call | Defined | 2024-11-14 | |
| 2024-09-30 | $169,855 | 3,500 | Put | Defined | 2024-11-14 | |
| 2024-06-30 | $176,000 | 4,400 | Put | Defined | 2024-08-14 | |
| 2024-06-30 | $10,526,040 | 263,151 | Shares | Defined | 2024-08-14 | |
| 2024-06-30 | $296,000 | 7,400 | Call | Defined | 2024-08-14 | |
| 2024-03-31 | $2,972,574 | 67,697 | Shares | Defined | 2024-05-15 | |
| 2024-03-31 | $654,259 | 14,900 | Call | Defined | 2024-05-15 | |
| 2024-03-31 | $535,702 | 12,200 | Put | Defined | 2024-05-15 | |
| 2023-12-31 | $7,186,907 | 116,199 | Shares | Defined | 2024-02-14 | |
| 2023-12-31 | $531,910 | 8,600 | Put | Defined | 2024-02-14 | |
| 2023-12-31 | $698,905 | 11,300 | Call | Defined | 2024-02-14 | |
| 2023-09-30 | $101,178 | 2,200 | Put | Defined | 2023-11-14 | |
| 2023-09-30 | $5,919,602 | 128,715 | Shares | Defined | 2023-11-14 | |
| 2023-09-30 | $423,108 | 9,200 | Call | Defined | 2023-11-14 | |
| 2023-06-30 | $229,880 | 4,000 | Put | Defined | 2023-08-14 | |
| 2023-06-30 | $10,226,786 | 177,950 | Shares | Defined | 2023-08-14 | |
| 2023-06-30 | $396,543 | 6,900 | Call | Defined | 2023-08-14 | |
| 2023-03-31 | $1,175,287 | 31,341 | Shares | Defined | 2023-05-15 | |
| 2023-03-31 | $120,000 | 3,200 | Put | Defined | 2023-05-15 | |
| 2023-03-31 | $213,750 | 5,700 | Call | Defined | 2023-05-15 | |
| 2022-12-31 | $1,191,045 | 42,507 | Shares | Defined | 2023-02-14 | |
| 2022-12-31 | $42,030 | 1,500 | Put | Defined | 2023-02-14 | |
| 2022-12-31 | $226,962 | 8,100 | Call | Defined | 2023-02-14 | |
| 2022-09-30 | $595,720 | 21,200 | Call | Defined | 2022-11-14 | |
| 2022-09-30 | $4,924,945 | 175,265 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $1,161,986 | 33,400 | Call | Defined | 2022-08-15 | |
| 2022-06-30 | $1,440,236 | 41,398 | Shares | Defined | 2022-08-15 | |
| 2022-06-30 | $427,917 | 12,300 | Put | Defined | 2022-08-15 | |
| 2022-03-31 | $502,600 | 14,000 | Call | Defined | 2022-05-16 | |
| 2022-03-31 | $319,510 | 8,900 | Put | Defined | 2022-05-16 | |
| 2022-03-31 | $8,539,999 | 237,883 | Shares | Defined | 2022-05-16 | |
| 2021-12-31 | $4,972,926 | 213,522 | Shares | Defined | 2022-02-14 | |
| 2021-06-30 | $491,359 | 24,373 | Shares | Defined | 2021-08-16 | |
| No filing history on record for this holder in this stock. | ||||||