Russell Investments Group, Ltd.
Position in TECX — Tectonic Therapeutic, Inc.
CIK 1692234
Seattle, WA
Position in TECX
as of Jun 30, 2026
· filed Aug 6, 2026
Position Value
$191,393
+$165,089 QoQ
Shares Held
5,567
+554.2% QoQ
Ownership
0.028%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#79
of 122 holders
Holding Since
Sep 2025
4 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in TECX Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026Russell Investments Group, Ltd. holds $1,494,413,888 across 308 Biotechnology names. TECX ranks #186 (0.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
336,990 | $167,393,033 | |
| 2 | REGN |
Regeneron Pharmaceuticals, Inc.
|
230,151 | $143,508,345 | |
| 3 | RPRX |
Royalty Pharma plc
|
1,694,250 | $94,996,587 | |
| 4 | INCY |
Incyte Corp
|
425,616 | $48,247,822 | |
| 5 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
158,228 | $47,631,369 | |
| 6 | BMRN |
Biomarin Pharmaceutical Inc
|
783,148 | $44,811,725 | |
| 7 | LGND |
Ligand Pharmaceuticals Inc
|
120,304 | $38,026,888 | |
| 8 | PTCT |
Ptc Therapeutics, Inc.
|
418,025 | $34,098,295 |
All Filings in TECX
Export CSV
4 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $191,393 | 5,567 | Shares | Defined | 2026-08-06 | |
| 2026-03-31 | $26,304 | 851 | Shares | Defined | 2026-05-08 | |
| 2025-12-31 | $19,378 | 929 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 | $14,277 | 910 | Shares | Defined | 2025-11-13 | |
| No filing history on record for this holder in this stock. | ||||||