Position in WAT
as of Jun 30, 2026
· filed Aug 12, 2026
Position Value
$484,176
+$92,867 QoQ
Shares Held
1,291
-1.8% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#627
of 1,177 holders
Holding Since
Mar 2026
2 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in WAT Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Jun 30, 2026GAMCO INVESTORS, INC. ET AL holds $9,507,809 across 7 Diagnostics & Research names. WAT ranks #4 (5.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | GRAL |
GRAIL, Inc.
|
66,713 | $4,554,496 | |
| 2 | TMO |
Thermo Fisher Scientific Inc.
|
4,060 | $2,035,521 | |
| 3 | NEO |
Neogenomics Inc
|
100,000 | $1,459,000 | |
| 4 | WAT |
Waters Corp /De/
This page
|
1,291 | $484,176 | |
| 5 | A |
Agilent Technologies, Inc.
|
3,636 | $482,969 | |
| 6 | OPK |
Opko Health, Inc.
|
175,000 | $262,500 | |
| 7 | DHR |
Danaher Corp /De/
|
1,203 | $229,147 |
All Filings in WAT
Export CSV
2 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $484,176 | 1,291 | Shares | Sole | 2026-08-12 | |
| 2026-03-31 | $391,309 | 1,314 | Shares | Sole | 2026-05-14 | |
| No filing history on record for this holder in this stock. | ||||||