GW&K Investment Management, LLC
Position in TMO — Thermo Fisher Scientific Inc.
CIK 1082917
BOSTON, MA
Position in TMO
as of Jun 30, 2026
· filed Aug 12, 2026
Position Value
$15,774,289
+$40,414 QoQ
Shares Held
31,463
-1.7% QoQ
Ownership
0.009%
of shares outstanding
% of Portfolio
0.12%
of 13F equity value
Holder Rank
#538
of 2,617 holders
Holding Since
Mar 2022
15 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in TMO Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Jun 30, 2026GW&K Investment Management, LLC holds $306,980,755 across 16 Diagnostics & Research names. TMO ranks #6 (5.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | MEDP |
Medpace Holdings, Inc.
|
172,696 | $91,458,074 | |
| 2 | VCYT |
Veracyte, Inc.
|
1,416,543 | $83,193,570 | |
| 3 | NTRA |
Natera, Inc.
|
231,308 | $62,788,555 | |
| 4 | NEO |
Neogenomics Inc
|
2,129,421 | $31,068,251 | |
| 5 | CRL |
Charles River Laboratories International, Inc.
|
90,608 | $20,548,988 | |
| 6 | TMO |
Thermo Fisher Scientific Inc.
This page
|
31,463 | $15,774,289 | |
| 7 | IDXX |
Idexx Laboratories Inc /De
|
3,509 | $1,847,277 | |
| 8 | DHR |
Danaher Corp /De/
|
685 | $130,478 |
All Filings in TMO
Export CSV
15 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $15,774,289 | 31,463 | Shares | Sole | 2026-08-12 | |
| 2026-03-31 | $15,733,875 | 32,010 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 | $18,924,837 | 32,660 | Shares | Sole | 2026-02-11 | |
| 2025-09-30 | $17,192,988 | 35,448 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $14,803,750 | 36,511 | Shares | Sole | 2025-08-11 | |
| 2025-03-31 | $19,063,056 | 38,310 | Shares | Sole | 2025-05-05 | |
| 2024-12-31 | $19,626,717 | 37,727 | Shares | Sole | 2025-02-05 | |
| 2024-09-30 | $24,212,685 | 39,143 | Shares | Sole | 2024-11-07 | |
| 2024-06-30 | $17,124,198 | 30,966 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $18,194,779 | 31,305 | Shares | Sole | 2024-05-08 | |
| 2023-12-31 | $15,628,049 | 29,443 | Shares | Sole | 2024-02-09 | |
| 2023-09-30 | $82,505 | 163 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $70,958 | 136 | Shares | Sole | 2023-08-09 | |
| 2022-06-30 | $198,297 | 365 | Shares | Sole | 2022-08-09 | |
| 2022-03-31 | $200,821 | 340 | Shares | Sole | 2022-05-09 | |
| No filing history on record for this holder in this stock. | ||||||