AptarGroup, Inc.
US ˙ NYSE ˙ US0383361039

SecurityATR / AptarGroup, Inc.
InstitutionColdstream Capital Management Inc
Latest Disclosed Ownership3,287 shares
Latest Disclosed Value $ 414,244
Coldstream Capital Management Inc reports 1.11% increase in ownership of ATR / AptarGroup, Inc.

On May 8, 2026 - Coldstream Capital Management Inc filed a 13F-HR form disclosing ownership of 3,287 shares of AptarGroup, Inc. (US:ATR) valued at $414,228 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 3,251 shares of AptarGroup, Inc.. This represents a change in shares of 1.11% during the quarter. The current value of the position is $369,886 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-08 2026-03-31 13F APTARGROUP COM 038336103 3,287 36 1.11 414 4.55 0.0044
2026-02-09 2025-12-31 13F APTARGROUP COM 038336103 3,251 -672 -17.13 397 -24.43 0.0051
2025-11-19 2025-09-30 13F APTARGROUP COM 038336103 3,923 105 2.75 524 -12.23 0.0071
2025-08-12 2025-06-30 13F APTARGROUP COM 038336103 3,818 25 0.66 597 6.23 0.0098
2025-05-13 2025-03-31 13F APTARGROUP COM 038336103 3,793 80 2.15 563 -3.60 0.0120
2025-02-14 2024-12-31 13F APTARGROUP COM 038336103 3,713 -64 -1.69 583 -3.64 0.0124
2024-11-18 2024-09-30 13F/A-1 APTARGROUP COM 038336103 3,777 32 0.85 606 14.80 0.0131
2024-11-18 2024-09-30 13F APTARGROUP COM 038336103 3,777 606
2024-08-07 2024-06-30 13F APTARGROUP COM 038336103 3,745 -122 -3.15 527 -5.22 0.0128
2024-05-14 2024-03-31 13F APTARGROUP COM 038336103 3,867 -12 -0.31 556 16.08 0.0141
2024-02-09 2023-12-31 13F APTARGROUP COM 038336103 3,879 282 7.84 480 6.68 0.0134
2023-11-02 2023-09-30 13F APTARGROUP COM 038336103 3,597 23 0.64 450 8.45 0.0147
2023-08-03 2023-06-30 13F APTARGROUP COM 038336103 3,574 76 2.17 414 0.24 0.0131
2023-05-15 2023-03-31 13F APTARGROUP COM 038336103 3,498 -468 -11.80 413 -5.28 0.0139
2023-01-10 2022-12-31 13F APTARGROUP COM 038336103 3,966 -377 -8.68 436 -2.68 0.0160
2022-08-08 2022-06-30 13F/A-1 APTARGROUP COM 038336103 4,343 25 0.58 448 -11.64 0.0175
2022-08-08 2022-06-30 13F APTARGROUP COM 038336103 3,324 -994 343 0.0146
2022-05-11 2022-03-31 13F APTARGROUP COM 038336103 4,318 -506 -10.49 507 -14.21 0.0175
2022-02-11 2021-12-31 13F APTARGROUP COM 038336103 4,824 4,824 591 0.0186
2021-11-12 2021-09-30 13F APTARGROUP COM 038336103 0 -1,824 -100.00 0 -100.00
2021-08-16 2021-06-30 13F APTARGROUP COM 038336103 1,824 -13 -0.71 257 -1.15 0.0103
2021-06-16 2021-03-31 13F APTARGROUP COM 038336103 1,837 12 0.66 260 4.00 0.0152
2021-02-16 2020-12-31 13F APTARGROUP COM 038336103 1,825 1,825 250 0.0151
2020-05-27 2020-03-31 13F APTARGROUP COM 038336103 0 -2,997 -100.00 0 -100.00
2020-02-13 2019-12-31 13F APTARGROUP COM 038336103 2,997 -28 -0.93 346 -3.35 0.0284
2019-11-15 2019-09-30 13F APTARGROUP COM 038336103 3,025 -57 -1.85 358 -6.53 0.0301
2019-08-15 2019-06-30 13F APTARGROUP COM 038336103 3,082 57 1.88 383 19.31 0.0319
2019-05-10 2019-03-31 13F APTARGROUP COM 038336103 3,025 -15 -0.49 321 12.24 0.0281
2019-02-26 2018-12-31 13F APTARGROUP COM 038336103 3,040 -468 -13.34 286 -24.34 0.0278
2018-11-14 2018-09-30 13F APTARGROUP COM 038336103 3,508 278 8.61 378 25.17 0.0342
2018-08-14 2018-06-30 13F APTARGROUP COM 038336103 3,230 300 10.24 302 14.83 0.0305
2018-05-15 2018-03-31 13F APTARGROUP COM 038336103 2,930 0 0.00 263 3.95 0.0284
2018-02-14 2017-12-31 13F APTARGROUP COM 038336103 2,930 125 4.46 253 4.55 0.0274
2017-11-15 2017-09-30 13F APTARGROUP COM 038336103 2,805 0 0.00 242 -0.82 0.0282
2017-08-14 2017-06-30 13F APTARGROUP COM 038336103 2,805 30 1.08 244 14.02 0.0315
2017-05-09 2017-03-31 13F APTARGROUP COM 038336103 2,775 2,775 214 0.0296
2016-11-14 2016-09-30 13F/A-1 APTARGROUP COM 038336103 0 -2,550 -100.00 0 -100.00
2016-08-09 2016-06-30 13F APTARGROUP COM 038336103 2,550 -615 -19.43 202 -18.55 0.0358
2016-05-16 2016-03-31 13F APTARGROUP COM 038336103 3,165 3,165 0.00 248 0.0452
2016-02-04 2015-12-31 13F APTARGROUP COM 038336103 0 0 0 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.