CHARLES SCHWAB INVESTMENT MANAGEMENT INC
Position in PTGX — Protagonist Therapeutics, Inc
CIK 884546
SAN FRANCISCO, CA
Position in PTGX
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$71,559,016
+$13,277,454 QoQ
Shares Held
583,774
+5.6% QoQ
Ownership
0.902%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#28
of 341 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in PTGX Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026CHARLES SCHWAB INVESTMENT MANAGEMENT INC holds $7,346,663,053 across 299 Biotechnology names. PTGX ranks #26 (1.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
2,041,282 | $1,013,966,007 | |
| 2 | REGN |
Regeneron Pharmaceuticals, Inc.
|
846,306 | $527,705,642 | |
| 3 | RVMD |
Revolution Medicines, Inc.
|
1,917,025 | $359,020,441 | |
| 4 | MRNA |
Moderna, Inc.
|
4,838,884 | $338,867,045 | |
| 5 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
755,377 | $227,391,137 | |
| 6 | INCY |
Incyte Corp
|
1,692,439 | $191,854,884 | |
| 7 | RPRX |
Royalty Pharma plc
|
3,083,528 | $172,893,414 | |
| 8 | CYTK |
Cytokinetics Inc
|
1,565,781 | $133,388,883 |
All Filings in PTGX
Export CSV
26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $71,559,016 | 583,774 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $58,281,562 | 552,956 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $48,627,593 | 556,762 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $36,727,619 | 552,877 | Shares | Sole | 2025-11-10 | |
| 2025-06-30 | $31,800,368 | 575,364 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $26,971,242 | 557,718 | Shares | Sole | 2025-09-15 | |
| 2024-12-31 | $22,326,587 | 578,409 | Shares | Sole | 2025-02-06 | |
| 2024-09-30 | $25,447,635 | 565,503 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $18,213,876 | 525,653 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $14,365,538 | 496,562 | Shares | Sole | 2024-05-09 | |
| 2023-12-31 | $10,440,510 | 455,321 | Shares | Sole | 2024-02-06 | |
| 2023-09-30 | $7,324,221 | 439,102 | Shares | Sole | 2023-11-08 | |
| 2023-06-30 | $11,589,628 | 419,610 | Shares | Sole | 2023-08-10 | |
| 2023-03-31 | $8,306,634 | 361,158 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $3,709,629 | 340,021 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $2,812,610 | 333,643 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $2,568,835 | 324,758 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $7,702,133 | 325,259 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $10,847,521 | 317,179 | Shares | Sole | 2022-02-11 | |
| 2021-09-30 | $5,490,223 | 309,832 | Shares | Sole | 2021-11-16 | |
| 2021-06-30 | $12,628,244 | 281,378 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $6,775,103 | 261,587 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $4,540,435 | 225,220 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $4,232,301 | 216,486 | Shares | Sole | 2020-11-13 | |
| 2020-06-30 | $1,007,891 | 57,072 | Shares | Sole | 2020-08-20 | |
| 2020-03-31 | $309,962 | 43,904 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||