Position in MGTX
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$21,217,000
+$872,299 QoQ
Shares Held
2,450,000
-4.3% QoQ
Ownership
2.65%
of shares outstanding
% of Portfolio
2.10%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in MGTX Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026683 Capital Management, LLC holds $316,393,134 across 63 Biotechnology names. MGTX ranks #4 (6.7% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | PTGX |
Protagonist Therapeutics, Inc
|
355,000 | $37,417,000 | |
| 2 | WVE |
Wave Life Sciences Ltd.
|
4,900,000 | $35,525,000 | |
| 3 | ANAB |
Anaptysbio, Inc
|
625,000 | $34,662,500 | |
| 4 | MGTX |
MeiraGTx Holdings plc
This page
|
2,450,000 | $21,217,000 | |
| 5 | PHAT |
Phathom Pharmaceuticals, Inc.
|
1,850,000 | $20,553,500 | |
| 6 | TGTX |
Tg Therapeutics, Inc.
|
590,000 | $19,599,800 | |
| 7 | SRPT |
Sarepta Therapeutics, Inc.
|
750,000 | $16,320,000 | |
| 8 | FOLD |
AMICUS THERAPEUTICS, INC.
|
775,000 | $11,206,500 |
All Filings in MGTX
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $21,217,000 | 2,450,000 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $20,344,701 | 2,559,082 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 | $21,603,750 | 2,625,000 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $17,538,800 | 2,690,000 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $17,458,500 | 2,575,000 | Shares | Defined | 2025-05-15 | |
| 2024-12-31 | $14,707,350 | 2,415,000 | Shares | Defined | 2025-02-14 | |
| 2024-09-30 | $10,633,500 | 2,550,000 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $10,525,000 | 2,500,000 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $15,175,000 | 2,500,000 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $17,550,000 | 2,500,000 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $12,066,860 | 2,457,609 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 | $16,515,132 | 2,457,609 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $8,659,750 | 1,675,000 | Shares | Defined | 2023-05-15 | |
| 2022-12-31 | $11,084,000 | 1,700,000 | Shares | Defined | 2023-02-14 | |
| 2022-09-30 | $13,960,600 | 1,660,000 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $10,900,800 | 1,440,000 | Shares | Defined | 2022-08-15 | |
| 2022-03-31 | $18,766,750 | 1,355,000 | Shares | Defined | 2022-05-16 | |
| 2021-12-31 | $32,167,700 | 1,355,000 | Shares | Defined | 2022-02-14 | |
| 2021-09-30 | $17,333,018 | 1,315,100 | Shares | Defined | 2021-11-15 | |
| 2021-06-30 | $19,990,489 | 1,289,709 | Shares | Defined | 2021-08-16 | |
| 2021-03-31 | $17,368,279 | 1,203,623 | Shares | Defined | 2021-05-17 | |
| 2020-12-31 | $15,689,915 | 1,036,322 | Shares | Defined | 2021-02-16 | |
| 2020-09-30 | $9,062,078 | 684,447 | Shares | Defined | 2020-11-16 | |
| 2020-06-30 | $5,206,742 | 415,874 | Shares | Defined | 2020-08-14 | |
| 2020-03-31 | $5,589,346 | 415,874 | Shares | Defined | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||