Position in GRAL
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$1,751,641
-$4,019,435 QoQ
Shares Held
33,894
-49.7% QoQ
Ownership
0.079%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2024
8 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in GRAL Over Time
Shares Held
Position Value (USD)
Derivatives in GRAL
reported options exposure · as of Mar 31, 2026CallValue
$10,423,856
CallShares
201,700
PutValue
$3,173,152
PutShares
61,400
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 Diagnostics & Research
Healthcare · as of Mar 31, 2026CITADEL ADVISORS LLC holds $1,657,068,556 across 34 Diagnostics & Research names. GRAL ranks #25 (0.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
|
864,489 | $424,922,277 | |
| 2 | CRL |
Charles River Laboratories International, Inc.
|
1,212,152 | $209,096,220 | |
| 3 | A |
Agilent Technologies, Inc.
|
1,801,714 | $205,359,361 | |
| 4 | DHR |
Danaher Corp /De/
|
1,026,347 | $194,595,390 | |
| 5 | MTD |
Mettler Toledo International Inc/
|
58,054 | $73,217,704 | |
| 6 | GH |
Guardant Health, Inc.
|
775,941 | $71,673,669 | |
| 7 | DGX |
Quest Diagnostics Inc
|
347,218 | $68,047,783 | |
| 8 | IQV |
Iqvia Holdings Inc.
|
390,042 | $66,517,762 |
All Filings in GRAL
Export CSV
22 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,751,641 | 33,894 | Shares | Defined | 2026-05-15 | |
| 2026-03-31 | $3,173,152 | 61,400 | Put | Defined | 2026-05-15 | |
| 2026-03-31 | $10,423,856 | 201,700 | Call | Defined | 2026-05-15 | |
| 2025-12-31 | $12,920,666 | 150,960 | Call | Defined | 2026-02-17 | |
| 2025-12-31 | $6,401,447 | 74,792 | Put | Defined | 2026-02-17 | |
| 2025-12-31 | $5,771,076 | 67,427 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 | $3,346,521 | 56,596 | Put | Defined | 2025-11-14 | |
| 2025-09-30 | $8,402,373 | 142,100 | Call | Defined | 2025-11-14 | |
| 2025-06-30 | $6,858,605 | 133,384 | Put | Defined | 2025-08-14 | |
| 2025-06-30 | $10,235,253 | 199,052 | Call | Defined | 2025-08-14 | |
| 2025-03-31 | $1,380,896 | 54,068 | Put | Defined | 2025-05-15 | |
| 2025-03-31 | $4,447,433 | 174,136 | Call | Defined | 2025-05-15 | |
| 2025-03-31 | $3,905,857 | 152,931 | Shares | Defined | 2025-05-15 | |
| 2024-12-31 | $5,048,711 | 282,841 | Shares | Defined | 2025-02-14 | |
| 2024-12-31 | $1,564,873 | 87,668 | Put | Defined | 2025-02-14 | |
| 2024-12-31 | $1,850,259 | 103,656 | Call | Defined | 2025-02-14 | |
| 2024-09-30 | $949,935 | 69,036 | Put | Defined | 2024-11-14 | |
| 2024-09-30 | $983,330 | 71,463 | Shares | Defined | 2024-11-14 | |
| 2024-09-30 | $947,788 | 68,880 | Call | Defined | 2024-11-14 | |
| 2024-06-30 | $440,873 | 28,684 | Put | Defined | 2024-08-14 | |
| 2024-06-30 | $401,034 | 26,092 | Call | Defined | 2024-08-14 | |
| 2024-06-30 | $4,670,143 | 303,848 | Shares | Defined | 2024-08-14 | |
| No filing history on record for this holder in this stock. | ||||||