Position in RGEN
as of Jun 30, 2026
· filed Aug 3, 2026
Position Value
$5,903,485
+$5,900,536 QoQ
Shares Held
43,268
+240277.8% QoQ
Ownership
0.077%
of shares outstanding
% of Portfolio
0.09%
of 13F equity value
Holder Rank
#122
of 480 holders
Holding Since
Jun 2020
22 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in RGEN Over Time
Shares Held
Position Value (USD)
Derivatives in RGEN
reported options exposure · as of Jun 30, 2026CallValue
$136,440
CallShares
1,000
PutValue
$40,932
PutShares
300
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 Instruments & Supplies
Healthcare · as of Jun 30, 2026Walleye Trading LLC holds $11,658,016 across 7 Medical Instruments & Supplies names. RGEN ranks #1 (50.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | RGEN |
Repligen Corp
This page
|
43,268 | $5,903,485 | |
| 2 | BAX |
Baxter International Inc
|
140,796 | $3,001,770 | |
| 3 | WRBY |
Warby Parker Inc.
|
65,415 | $1,984,691 | |
| 4 | ALC |
Alcon Inc
|
7,235 | $485,468 | |
| 5 | STAA |
Staar Surgical Co
|
8,688 | $249,258 | |
| 6 | AVTR |
Avantor, Inc.
|
3,187 | $31,551 | |
| 7 | XRAY |
DENTSPLY SIRONA Inc.
|
169 | $1,793 |
All Filings in RGEN
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $5,903,485 | 43,268 | Shares | Sole | 2026-08-03 | |
| 2026-06-30 | $40,932 | 300 | Put | Sole | 2026-08-03 | |
| 2026-06-30 | $136,440 | 1,000 | Call | Sole | 2026-08-03 | |
| 2025-12-31 | $557,124 | 3,400 | Put | Sole | 2026-02-13 | |
| 2025-12-31 | $491,580 | 3,000 | Call | Sole | 2026-02-13 | |
| 2025-12-31 | $2,949 | 18 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $66,835 | 500 | Call | Sole | 2025-11-14 | |
| 2025-09-30 | $128,456 | 961 | Shares | Sole | 2025-11-14 | |
| 2025-09-30 | $227,239 | 1,700 | Put | Sole | 2025-11-14 | |
| 2025-06-30 | $211,446 | 1,700 | Put | Sole | 2025-08-13 | |
| 2025-06-30 | $85,449 | 687 | Shares | Sole | 2025-08-13 | |
| 2025-03-31 | $135,892 | 1,068 | Shares | Sole | 2025-05-14 | |
| 2025-03-31 | $216,308 | 1,700 | Put | Sole | 2025-05-14 | |
| 2024-12-31 | $1,928,796 | 13,400 | Put | Sole | 2025-02-13 | |
| 2024-12-31 | $489,396 | 3,400 | Call | Sole | 2025-02-13 | |
| 2024-12-31 | $1,249,543 | 8,681 | Shares | Sole | 2025-02-13 | |
| 2024-09-30 | $476,224 | 3,200 | Call | Sole | 2024-11-14 | |
| 2024-09-30 | $575,784 | 3,869 | Shares | Sole | 2024-11-14 | |
| 2024-09-30 | $1,577,492 | 10,600 | Put | Sole | 2024-11-14 | |
| 2024-06-30 | $1,512,720 | 12,000 | Put | Sole | 2024-08-14 | |
| 2024-06-30 | $1,001,672 | 7,946 | Shares | Sole | 2024-08-14 | |
| 2024-06-30 | $3,227,136 | 25,600 | Call | Sole | 2024-08-14 | |
| 2024-03-31 | $7,264,840 | 39,500 | Put | Sole | 2024-05-15 | |
| 2024-03-31 | $12,561,736 | 68,300 | Call | Sole | 2024-05-15 | |
| 2023-12-31 | $10,428,400 | 58,000 | Put | Sole | 2024-02-14 | |
| 2023-12-31 | $1,858,053 | 10,334 | Shares | Sole | 2024-02-14 | |
| 2023-12-31 | $5,124,300 | 28,500 | Call | Sole | 2024-02-14 | |
| 2023-09-30 | $3,704,933 | 23,300 | Call | Sole | 2023-11-21 | |
| 2023-09-30 | $825,102 | 5,189 | Shares | Sole | 2023-11-21 | |
| 2023-09-30 | $5,247,330 | 33,000 | Put | Sole | 2023-11-21 | |
| 2023-06-30 | $1,248,101 | 8,823 | Shares | Sole | 2023-08-14 | |
| 2023-06-30 | $1,075,096 | 7,600 | Call | Sole | 2023-08-14 | |
| 2023-06-30 | $2,475,550 | 17,500 | Put | Sole | 2023-08-14 | |
| 2023-03-31 | $404,064 | 2,400 | Call | Sole | 2023-05-15 | |
| 2023-03-31 | $168,360 | 1,000 | Put | Sole | 2023-05-15 | |
| 2022-12-31 | $270,896 | 1,600 | Call | Sole | 2023-02-14 | |
| 2022-03-31 | $1,053,304 | 5,600 | Call | Sole | 2022-05-16 | |
| 2021-12-31 | $105,936 | 400 | Put | Sole | 2022-02-14 | |
| 2021-12-31 | $2,118,720 | 8,000 | Call | Sole | 2022-02-14 | |
| 2021-09-30 | $3,959,163 | 13,700 | Call | Sole | 2021-11-15 | |
| 2021-09-30 | $1,762,839 | 6,100 | Put | Sole | 2021-11-15 | |
| 2021-06-30 | $538,974 | 2,700 | Call | Sole | 2021-08-16 | |
| 2021-06-30 | $1,157,796 | 5,800 | Put | Sole | 2021-08-16 | |
| 2021-06-30 | $633,194 | 3,172 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $408,261 | 2,100 | Put | Sole | 2021-05-17 | |
| 2021-03-31 | $1,730,249 | 8,900 | Call | Sole | 2021-05-17 | |
| 2020-12-31 | $153,304 | 800 | Put | Sole | 2021-02-16 | |
| 2020-12-31 | $210,409 | 1,098 | Shares | Sole | 2021-02-16 | |
| 2020-12-31 | $134,141 | 700 | Call | Sole | 2021-02-16 | |
| 2020-09-30 | $51,196 | 347 | Shares | Sole | 2020-11-16 | |
| No filing history on record for this holder in this stock. | ||||||