Position in MRKR
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$47,799
-$39,882 QoQ
Shares Held
32,517
-44.7% QoQ
Ownership
0.195%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#14
of 35 holders
Holding Since
Mar 2020
13 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in MRKR Over Time
Shares Held
Position Value (USD)
Derivatives in MRKR
reported options exposure · as of Jun 30, 2022CallValue
$5,775
CallShares
1,750
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 Biotechnology
Healthcare · as of Jun 30, 2026CITADEL ADVISORS LLC holds $6,088,670,159 across 436 Biotechnology names. MRKR ranks #385 (0.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ONC |
BeOne Medicines Ltd.
|
1,425,517 | $406,229,578 | |
| 2 | BBIO |
BridgeBio Pharma, Inc.
|
3,760,028 | $280,046,885 | |
| 3 | INSM |
INSMED Inc
|
2,556,973 | $272,624,460 | |
| 4 | MDGL |
Madrigal Pharmaceuticals, Inc.
|
507,233 | $272,358,759 | |
| 5 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
510,430 | $253,545,893 | |
| 6 | JAZZ |
Jazz Pharmaceuticals plc
|
1,006,676 | $242,578,715 | |
| 7 | MANE |
Veradermics, Inc
|
1,877,775 | $230,853,658 | |
| 8 | ROIV |
Roivant Sciences Ltd.
|
5,576,261 | $197,343,876 |
All Filings in MRKR
Export CSV
28 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $47,799 | 32,517 | Shares | Defined | 2026-08-14 | |
| 2025-12-31 | $87,681 | 58,847 | Shares | Defined | 2026-02-17 | |
| 2024-09-30 | $36,750 | 13,032 | Shares | Defined | 2024-11-14 | |
| 2022-06-30 | $5,775 | 17,500 | Call | Defined | 2022-08-15 | |
| 2022-06-30 | $47,624 | 144,318 | Shares | Defined | 2022-08-15 | |
| 2022-03-31 | $4,928 | 11,200 | Put | Defined | 2022-05-16 | |
| 2022-03-31 | $9,372 | 21,300 | Call | Defined | 2022-05-16 | |
| 2021-12-31 | $15,679 | 16,505 | Shares | Defined | 2022-02-14 | |
| 2021-12-31 | $22,040 | 23,200 | Put | Defined | 2022-02-14 | |
| 2021-12-31 | $88,920 | 93,600 | Call | Defined | 2022-02-14 | |
| 2021-09-30 | $41,743 | 24,700 | Put | Defined | 2021-11-15 | |
| 2021-09-30 | $38,318 | 22,674 | Shares | Defined | 2021-11-15 | |
| 2021-09-30 | $82,472 | 48,800 | Call | Defined | 2021-11-15 | |
| 2021-06-30 | $817,563 | 293,034 | Shares | Defined | 2021-08-16 | |
| 2021-06-30 | $132,525 | 47,500 | Put | Defined | 2021-08-16 | |
| 2021-06-30 | $267,282 | 95,800 | Call | Defined | 2021-08-16 | |
| 2021-03-31 | $486,752 | 217,300 | Put | Defined | 2021-05-21 | |
| 2021-03-31 | $407,023 | 181,707 | Shares | Defined | 2021-05-21 | |
| 2021-03-31 | $247,968 | 110,700 | Call | Defined | 2021-05-21 | |
| 2020-12-31 | $67,485 | 46,542 | Shares | Defined | 2021-02-16 | |
| 2020-12-31 | $48,720 | 33,600 | Call | Defined | 2021-02-16 | |
| 2020-09-30 | $41,400 | 27,600 | Call | Defined | 2020-11-16 | |
| 2020-09-30 | $73,113 | 48,742 | Shares | Defined | 2020-11-16 | |
| 2020-06-30 | $98,699 | 47,681 | Shares | Defined | 2020-08-14 | |
| 2020-06-30 | $47,196 | 22,800 | Call | Defined | 2020-08-14 | |
| 2020-06-30 | $21,528 | 10,400 | Put | Defined | 2020-08-14 | |
| 2020-03-31 | $121,220 | 63,800 | Shares | Defined | 2020-05-15 | |
| 2020-03-31 | $22,040 | 11,600 | Call | Defined | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||