AptarGroup, Inc.
US ˙ NYSE ˙ US0383361039

SecurityATR / AptarGroup, Inc.
InstitutionCwm, Llc
Latest Disclosed Ownership16,285 shares
Latest Disclosed Value $ 2,052,236
Cwm, Llc reports 51.05% increase in ownership of ATR / AptarGroup, Inc.

On May 14, 2026 - Cwm, Llc filed a 13F-HR form disclosing ownership of 16,285 shares of AptarGroup, Inc. (US:ATR) valued at $2,052,236 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 10,781 shares of AptarGroup, Inc.. This represents a change in shares of 51.05% during the quarter. The current value of the position is $1,846,068 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)
2026-05-14 2026-03-31 13F APTARGROUP COM 038336103 16,285 5,504 51.05 2,052 205,100.00 0.0053
2026-01-26 2025-12-31 13F APTARGROUP COM 038336103 10,781 5,457 102.50 1 0.0036
2025-10-15 2025-09-30 13F APTARGROUP COM 038336103 5,324 3,850 261.19 1 0.0021
2025-07-25 2025-06-30 13F APTARGROUP COM 038336103 1,474 -257 -14.85 0 0.0008
2025-05-01 2025-03-31 13F APTARGROUP COM 038336103 1,731 -401 -18.81 0 0.0010
2025-02-04 2024-12-31 13F APTARGROUP COM 038336103 2,132 66 3.19 0 0.0014
2024-10-08 2024-09-30 13F APTARGROUP COM 038336103 2,066 993 92.54 0 0.0014
2024-07-10 2024-06-30 13F APTARGROUP COM 038336103 1,073 474 79.13 0 0.0007
2024-04-05 2024-03-31 13F APTARGROUP COM 038336103 599 59 10.93 0 0.0004
2024-02-01 2023-12-31 13F APTARGROUP COM 038336103 540 73 15.63 0 0.0004
2023-10-11 2023-09-30 13F APTARGROUP COM 038336103 467 131 38.99 0 0.0004
2023-08-03 2023-06-30 13F APTARGROUP COM 038336103 336 -4 -1.18 0 0.0002
2023-05-01 2023-03-31 13F APTARGROUP COM 038336103 340 14 4.29 0 0.0003
2023-02-01 2022-12-31 13F APTARGROUP COM 038336103 326 -225 -40.83 0 -100.00 0.0003
2022-10-27 2022-09-30 13F APTARGROUP COM 038336103 551 203 58.33 52 44.44 0.0004
2022-07-28 2022-06-30 13F APTARGROUP COM 038336103 348 128 58.18 36 38.46 0.0003
2022-04-21 2022-03-31 13F APTARGROUP COM 038336103 220 37 20.22 26 18.18 0.0002
2022-01-31 2021-12-31 13F APTARGROUP COM 038336103 183 -127 -40.97 22 -50.00 0.0002
2021-09-15 2021-06-30 13F/A-1 APTARGROUP COM 038336103 310 0 0.00 44 0.00 0.0004
2021-07-29 2021-06-30 13F APTARGROUP COM 038336103 310 0 44 0.0004
2021-09-15 2021-03-31 13F/A-1 APTARGROUP COM 038336103 310 0 0.00 44 0.00 0.0004
2021-04-27 2021-03-31 13F APTARGROUP COM 038336103 239 -71 34 0.0003
2021-09-15 2020-12-31 13F/A-1 APTARGROUP COM 038336103 310 0 0.00 44 0.00 0.0004
2021-01-27 2020-12-31 13F APTARGROUP COM 038336103 118 -192 16 0.0001
2021-09-15 2020-09-30 13F/A-1 APTARGROUP COM 038336103 310 0 0.00 44 0.00 0.0004
2020-10-19 2020-09-30 13F APTARGROUP COM 038336103 101 -209 11 0.0001
2021-09-15 2020-06-30 13F/A-1 APTARGROUP COM 038336103 310 0 0.00 44 0.00 0.0004
2020-07-22 2020-06-30 13F APTARGROUP COM 038336103 51 -259 6 0.0001
2021-09-15 2020-03-31 13F/A-1 APTARGROUP COM 038336103 310 0 0.00 44 0.00 0.0004
2020-04-28 2020-03-31 13F APTARGROUP COM 038336103 126 -184 13 0.0002
2021-09-14 2019-12-31 13F/A-1 APTARGROUP COM 038336103 310 0 0.00 44 0.00 0.0004
2020-01-27 2019-12-31 13F APTARGROUP COM 038336103 16 -294 2 0.0000
2021-09-14 2019-09-30 13F/A-1 APTARGROUP COM 038336103 310 0 0.00 44 0.00 0.0004
2021-09-14 2019-06-30 13F/A-1 APTARGROUP COM 038336103 310 0 0.00 44 0.00 0.0004
2021-09-02 2019-03-31 13F/A-1 APTARGROUP COM 038336103 310 310 44 0.0004
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.