Position in ATR
as of Jun 30, 2026
· filed Aug 11, 2026
Position Value
$1,106,768
-$319,904 QoQ
Shares Held
8,840
-21.9% QoQ
Ownership
0.014%
of shares outstanding
% of Portfolio
0.05%
of 13F equity value
Holder Rank
#240
of 553 holders
Holding Since
Sep 2022
3 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in ATR Over Time
Shares Held
Position Value (USD)
Position in Medical Instruments & Supplies
Healthcare · as of Jun 30, 2026CenterBook Partners LP holds $7,148,014 across 8 Medical Instruments & Supplies names. ATR ranks #3 (15.5% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | STVN |
Stevanato Group S.p.A.
|
87,299 | $1,577,492 | |
| 2 | BLFS |
Biolife Solutions Inc
|
53,768 | $1,518,408 | |
| 3 | ATR |
Aptargroup, Inc.
This page
|
8,840 | $1,106,768 | |
| 4 | ISRG |
Intuitive Surgical Inc
|
2,668 | $1,061,010 | |
| 5 | NVST |
Envista Holdings Corp
|
25,860 | $681,411 | |
| 6 | WST |
West Pharmaceutical Services Inc
|
1,684 | $604,556 | |
| 7 | XRAY |
DENTSPLY SIRONA Inc.
|
33,902 | $359,700 | |
| 8 | ATRC |
AtriCure, Inc.
|
8,530 | $238,669 |
All Filings in ATR
Export CSV
3 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $1,106,768 | 8,840 | Shares | Sole | 2026-08-11 | |
| 2026-03-31 | $1,426,672 | 11,321 | Shares | Sole | 2026-05-05 | |
| 2022-09-30 | $220,754 | 2,323 | Shares | Sole | 2022-11-14 | |
| No filing history on record for this holder in this stock. | ||||||