SUSQUEHANNA INTERNATIONAL GROUP, LLP
Position in CTKB — Cytek Biosciences, Inc.
CIK 1446194
BALA CYNWYD, PA
Position in CTKB
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$3,019,953
+$2,775,190 QoQ
Shares Held
681,705
+1117.1% QoQ
Ownership
0.524%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#27
of 154 holders
Holding Since
Mar 2022
17 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in CTKB Over Time
Shares Held
Position Value (USD)
Derivatives in CTKB
reported options exposure · as of Mar 31, 2024CallValue
$88,572
CallShares
13,200
PutValue
$209,352
PutShares
31,200
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 Medical Devices
Healthcare · as of Jun 30, 2026SUSQUEHANNA INTERNATIONAL GROUP, LLP holds $393,151,381 across 79 Medical Devices names. CTKB ranks #15 (0.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ABT |
Abbott Laboratories
|
826,420 | $74,989,349 | |
| 2 | BSX |
Boston Scientific Corp
|
1,661,950 | $70,932,025 | |
| 3 | DXCM |
Dexcom Inc
|
1,043,864 | $70,304,239 | |
| 4 | MDT |
Medtronic plc
|
410,840 | $32,140,013 | |
| 5 | SYK |
Stryker Corp
|
76,719 | $24,154,209 | |
| 6 | GEHC |
GE HealthCare Technologies Inc.
|
314,867 | $20,154,636 | |
| 7 | TMDX |
TransMedics Group, Inc.
|
255,398 | $16,963,535 | |
| 8 | PEN |
Penumbra Inc
|
29,149 | $9,203,796 |
All Filings in CTKB
Export CSV
21 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $3,019,953 | 681,705 | Shares | Other | 2026-08-14 | |
| 2026-03-31 | $244,763 | 56,010 | Shares | Other | 2026-05-15 | |
| 2025-12-31 | $242,920 | 48,103 | Shares | Other | 2026-02-17 | |
| 2025-09-30 | $669,199 | 192,853 | Shares | Other | 2025-11-14 | |
| 2025-06-30 | $719,440 | 211,600 | Shares | Other | 2025-08-14 | |
| 2025-03-31 | $863,304 | 215,288 | Shares | Other | 2025-05-14 | |
| 2024-12-31 | $369,248 | 56,895 | Shares | Other | 2025-02-14 | |
| 2024-09-30 | $94,202 | 17,004 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $517,734 | 92,784 | Shares | Defined | 2024-08-15 | |
| 2024-03-31 | $88,572 | 13,200 | Call | Defined | 2024-05-07 | |
| 2024-03-31 | $209,352 | 31,200 | Put | Defined | 2024-05-07 | |
| 2024-03-31 | $157,685 | 23,500 | Shares | Defined | 2024-05-07 | |
| 2023-12-31 | $694,104 | 76,108 | Shares | Defined | 2024-02-14 | |
| 2023-12-31 | $152,304 | 16,700 | Put | Defined | 2024-02-14 | |
| 2023-09-30 | $143,520 | 26,000 | Call | Defined | 2023-11-14 | |
| 2023-06-30 | $350,994 | 41,100 | Call | Defined | 2023-08-11 | |
| 2023-06-30 | $574,912 | 67,320 | Shares | Defined | 2023-08-11 | |
| 2023-03-31 | $2,821,513 | 307,020 | Shares | Defined | 2023-05-16 | |
| 2022-12-31 | $575,844 | 56,400 | Call | Defined | 2023-02-14 | |
| 2022-09-30 | $597,028 | 40,559 | Shares | Defined | 2022-11-14 | |
| 2022-03-31 | $254,300 | 23,590 | Shares | Defined | 2022-05-16 | |
| No filing history on record for this holder in this stock. | ||||||