Position in TECH
as of Jun 30, 2026
· filed Aug 12, 2026
Position Value
$286,839
-$128,402,731 QoQ
Shares Held
4,060
-99.8% QoQ
Ownership
0.003%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#400
of 593 holders
Holding Since
Dec 2020
19 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in TECH Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC holds $1,785,226,604 across 15 Biotechnology names. TECH ranks #14 (0.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ARGX |
Argenx SE
|
264,617 | $245,503,714 | |
| 2 | TWST |
Twist Bioscience Corp
|
2,174,594 | $223,722,230 | |
| 3 | KRYS |
Krystal Biotech, Inc.
|
570,153 | $211,908,765 | |
| 4 | HALO |
Halozyme Therapeutics, Inc.
|
2,511,050 | $196,539,883 | |
| 5 | MDGL |
Madrigal Pharmaceuticals, Inc.
|
324,123 | $174,037,844 | |
| 6 | MIRM |
Mirum Pharmaceuticals, Inc.
|
1,404,741 | $164,453,028 | |
| 7 | PTCT |
Ptc Therapeutics, Inc.
|
1,722,688 | $140,519,660 | |
| 8 | CYTK |
Cytokinetics Inc
|
1,603,442 | $136,597,223 |
All Filings in TECH
Export CSV
19 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $286,839 | 4,060 | Shares | Sole | 2026-08-12 | |
| 2026-03-31 | $128,689,570 | 2,462,487 | Shares | Sole | 2026-05-08 | |
| 2025-12-31 | $141,041,964 | 2,398,265 | Shares | Sole | 2026-02-09 | |
| 2025-09-30 | $95,108,497 | 1,709,662 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $50,013,773 | 972,085 | Shares | Sole | 2025-07-29 | |
| 2025-03-31 | $58,049,504 | 990,099 | Shares | Sole | 2025-05-09 | |
| 2024-12-31 | $77,423,822 | 1,074,883 | Shares | Sole | 2025-02-10 | |
| 2024-09-30 | $88,741,083 | 1,110,235 | Shares | Sole | 2024-11-08 | |
| 2024-06-30 | $81,179,020 | 1,132,994 | Shares | Sole | 2024-08-08 | |
| 2024-03-31 | $152,902,917 | 2,172,225 | Shares | Sole | 2024-05-08 | |
| 2023-12-31 | $172,452,445 | 2,234,998 | Shares | Sole | 2024-02-09 | |
| 2023-09-30 | $157,532,290 | 2,314,269 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $188,929,206 | 2,314,458 | Shares | Sole | 2023-08-11 | |
| 2022-03-31 | $206,124,441 | 475,994 | Shares | Sole | 2022-05-11 | |
| 2021-12-31 | $301,882,892 | 583,529 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $316,833,187 | 653,844 | Shares | Sole | 2021-11-10 | |
| 2021-06-30 | $306,617,604 | 680,979 | Shares | Sole | 2021-08-12 | |
| 2021-03-31 | $315,641,083 | 826,437 | Shares | Sole | 2021-05-13 | |
| 2020-12-31 | $232,062,999 | 730,792 | Shares | Sole | 2021-02-09 | |
| No filing history on record for this holder in this stock. | ||||||