SummitTX Capital, L.P.
Position in REGN — Regeneron Pharmaceuticals, Inc.
CIK 2052310
FORT WORTH, TX
Position in REGN
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$1,323,532
+$777,006 QoQ
Shares Held
1,713
+76.2% QoQ
Ownership
0.002%
of shares outstanding
% of Portfolio
0.05%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2025
2 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in REGN Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026SummitTX Capital, L.P. holds $220,272,212 across 62 Biotechnology names.
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | RYTM |
Rhythm Pharmaceuticals, Inc.
|
126,401 | $14,034,303 | |
| 2 | RARE |
Ultragenyx Pharmaceutical Inc.
|
374,270 | $12,496,875 | |
| 3 | CYTK |
Cytokinetics Inc
|
112,893 | $9,617,354 | |
| 4 | CLDX |
Celldex Therapeutics, Inc.
|
254,959 | $9,487,024 | |
| 5 | QTTB |
Q32 Bio Inc.
|
733,774 | $9,348,280 | |
| 6 | GMAB |
Genmab A/S
|
318,408 | $8,746,667 | |
| 7 | JAZZ |
Jazz Pharmaceuticals plc
|
36,276 | $8,741,427 | |
| 8 | ABVX |
Abivax S.A.
|
65,216 | $8,690,684 |
All Filings in REGN
Export CSV
2 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,323,532 | 1,713 | Shares | Sole | 2026-05-15 | |
| 2025-09-30 | $546,526 | 972 | Shares | Defined | 2025-11-14 | |
| No filing history on record for this holder in this stock. | ||||||