SUSQUEHANNA INTERNATIONAL GROUP, LLP
Position in IDXX — Idexx Laboratories Inc /De
CIK 1446194
BALA CYNWYD, PA
Position in IDXX
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$28,658,866
+$20,758,131 QoQ
Shares Held
54,439
+287.2% QoQ
Ownership
0.069%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
#156
of 1,286 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in IDXX Over Time
Shares Held
Position Value (USD)
Derivatives in IDXX
reported options exposure · as of Jun 30, 2026CallValue
$21,847,260
CallShares
41,500
PutValue
$10,949,952
PutShares
20,800
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 Jun 30, 2026SUSQUEHANNA INTERNATIONAL GROUP, LLP holds $353,525,504 across 33 Diagnostics & Research names. IDXX ranks #5 (8.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | GH |
Guardant Health, Inc.
|
644,138 | $96,640,024 | |
| 2 | DHR |
Danaher Corp /De/
|
225,380 | $42,930,380 | |
| 3 | NTRA |
Natera, Inc.
|
133,758 | $36,308,609 | |
| 4 | TMO |
Thermo Fisher Scientific Inc.
|
69,202 | $34,695,114 | |
| 5 | IDXX |
Idexx Laboratories Inc /De
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|
54,439 | $28,658,866 | |
| 6 | IQV |
Iqvia Holdings Inc.
|
82,213 | $15,885,195 | |
| 7 | ILMN |
Illumina, Inc.
|
67,131 | $11,803,643 | |
| 8 | GRAL |
GRAIL, Inc.
|
155,295 | $10,601,989 |
All Filings in IDXX
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $10,949,952 | 20,800 | Put | Other | 2026-08-14 | |
| 2026-06-30 | $28,658,866 | 54,439 | Shares | Other | 2026-08-14 | |
| 2026-06-30 | $21,847,260 | 41,500 | Call | Other | 2026-08-14 | |
| 2026-03-31 | $7,900,735 | 14,061 | Shares | Other | 2026-05-15 | |
| 2026-03-31 | $25,565,995 | 45,500 | Call | Other | 2026-05-15 | |
| 2026-03-31 | $14,328,195 | 25,500 | Put | Other | 2026-05-15 | |
| 2025-12-31 | $14,274,783 | 21,100 | Put | Other | 2026-02-17 | |
| 2025-12-31 | $13,573,897 | 20,064 | Shares | Other | 2026-02-17 | |
| 2025-12-31 | $30,376,197 | 44,900 | Call | Other | 2026-02-17 | |
| 2025-09-30 | $14,388,441 | 22,521 | Shares | Other | 2025-11-14 | |
| 2025-09-30 | $58,522,324 | 91,600 | Call | Other | 2025-11-14 | |
| 2025-09-30 | $42,741,741 | 66,900 | Put | Other | 2025-11-14 | |
| 2025-06-30 | $27,567,876 | 51,400 | Call | Other | 2025-08-14 | |
| 2025-06-30 | $10,505,291 | 19,587 | Shares | Other | 2025-08-14 | |
| 2025-06-30 | $29,123,262 | 54,300 | Put | Other | 2025-08-14 | |
| 2025-03-31 | $7,349,125 | 17,500 | Put | Other | 2025-05-14 | |
| 2025-03-31 | $3,695,979 | 8,801 | Shares | Other | 2025-05-14 | |
| 2025-03-31 | $12,724,485 | 30,300 | Call | Other | 2025-05-14 | |
| 2024-12-31 | $71,855,872 | 173,800 | Put | Other | 2025-02-14 | |
| 2024-12-31 | $16,785,664 | 40,600 | Call | Other | 2025-02-14 | |
| 2024-12-31 | $18,295,133 | 44,251 | Shares | Other | 2025-02-14 | |
| 2024-09-30 | $30,464,766 | 60,300 | Call | Defined | 2024-11-14 | |
| 2024-09-30 | $32,637,212 | 64,600 | Put | Defined | 2024-11-14 | |
| 2024-09-30 | $5,816,092 | 11,512 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $52,325,280 | 107,400 | Put | Defined | 2024-08-15 | |
| 2024-06-30 | $21,293,563 | 43,706 | Shares | Defined | 2024-08-15 | |
| 2024-06-30 | $21,436,800 | 44,000 | Call | Defined | 2024-08-15 | |
| 2024-03-31 | $37,417,149 | 69,300 | Call | Defined | 2024-05-07 | |
| 2024-03-31 | $19,352,170 | 35,842 | Shares | Defined | 2024-05-07 | |
| 2024-03-31 | $94,703,722 | 175,400 | Put | Defined | 2024-05-07 | |
| 2023-12-31 | $30,435,611 | 54,834 | Shares | Defined | 2024-02-14 | |
| 2023-12-31 | $33,191,990 | 59,800 | Call | Defined | 2024-02-14 | |
| 2023-12-31 | $41,462,235 | 74,700 | Put | Defined | 2024-02-14 | |
| 2023-09-30 | $41,278,288 | 94,400 | Put | Defined | 2023-11-14 | |
| 2023-09-30 | $27,854,099 | 63,700 | Call | Defined | 2023-11-14 | |
| 2023-09-30 | $15,386,656 | 35,188 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 | $53,487,495 | 106,500 | Call | Defined | 2023-08-11 | |
| 2023-06-30 | $13,608,422 | 27,096 | Shares | Defined | 2023-08-11 | |
| 2023-06-30 | $39,324,609 | 78,300 | Put | Defined | 2023-08-11 | |
| 2023-03-31 | $25,100,014 | 50,192 | Shares | Defined | 2023-05-16 | |
| 2023-03-31 | $82,263,160 | 164,500 | Put | Defined | 2023-05-16 | |
| 2023-03-31 | $66,710,672 | 133,400 | Call | Defined | 2023-05-16 | |
| 2022-12-31 | $79,878,568 | 195,800 | Call | Defined | 2023-02-14 | |
| 2022-12-31 | $19,827,671 | 48,602 | Shares | Defined | 2023-02-14 | |
| 2022-12-31 | $61,234,796 | 150,100 | Put | Defined | 2023-02-14 | |
| 2022-09-30 | $5,223,877 | 16,034 | Shares | Defined | 2022-11-14 | |
| 2022-09-30 | $31,504,860 | 96,700 | Call | Defined | 2022-11-14 | |
| 2022-09-30 | $29,810,700 | 91,500 | Put | Defined | 2022-11-14 | |
| 2022-06-30 | $38,124,351 | 108,700 | Call | Defined | 2022-08-15 | |
| 2022-06-30 | $14,874,107 | 42,409 | Shares | Defined | 2022-08-15 | |
| No filing history on record for this holder in this stock. | ||||||