Graphic Packaging Holding Company
US ˙ NYSE ˙ US3886891015

SecurityGPK / Graphic Packaging Holding Company
InstitutionConnable Office Inc
Latest Disclosed Ownership26,285 shares
Latest Disclosed Value $ 261,273
Connable Office Inc reports 11.53% increase in ownership of GPK / Graphic Packaging Holding Company

On April 29, 2026 - Connable Office Inc filed a 13F-HR form disclosing ownership of 26,285 shares of Graphic Packaging Holding Company (US:GPK) valued at $261,273 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 23,568 shares of Graphic Packaging Holding Company. This represents a change in shares of 11.53% during the quarter. The current value of the position is $279,672 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)
2026-04-29 2026-03-31 13F Graphic Packaging Holding Com 388689101 26,285 2,717 11.53 261 -26.27 0.0257
2026-02-03 2025-12-31 13F Graphic Packaging Holding Com 388689101 23,568 1,443 6.52 355 -18.06 0.0325
2025-11-06 2025-09-30 13F Graphic Packaging Holding Com 388689101 22,125 1,413 6.82 433 -0.92 0.0402
2025-08-05 2025-06-30 13F Graphic Packaging Holding Com 388689101 20,712 6,035 41.12 436 14.44 0.0432
2025-05-09 2025-03-31 13F Graphic Packaging Holding Com 388689101 14,677 -589 -3.86 381 -7.97 0.0406
2025-02-05 2024-12-31 13F Graphic Packaging Holding Com 388689101 15,266 541 3.67 415 -4.83 0.0429
2024-11-06 2024-09-30 13F Graphic Packaging Holding Com 388689101 14,725 229 1.58 436 14.78 0.0439
2024-08-07 2024-06-30 13F Graphic Packaging Holding Com 388689101 14,496 288 2.03 380 -8.45 0.0409
2024-04-30 2024-03-31 13F Graphic Packaging Holding Com 388689101 14,208 -715 -4.79 415 12.81 0.0470
2024-02-12 2023-12-31 13F Graphic Packaging Holding Com 388689101 14,923 1,372 10.12 368 21.93 0.0445
2023-11-08 2023-09-30 13F Graphic Packaging Holding Com 388689101 13,551 2,037 17.69 302 9.06 0.0415
2023-08-07 2023-06-30 13F Graphic Packaging Holding Com 388689101 11,514 -6,545 -36.24 277 -40.00 0.0380
2023-04-17 2023-03-31 13F Graphic Packaging Holding Com 388689101 18,059 -4,072 -18.40 460 0.0669
2023-01-23 2022-12-31 13F Graphic Packaging Holding Com 388689101 22,131 -5,375 -19.54 0 -100.00 0.0705
2022-10-26 2022-09-30 13F Graphic Packaging Holding Com 388689101 27,506 -1,865 -6.35 543 -9.80 0.0882
2022-08-01 2022-06-30 13F Graphic Packaging Holding Com 388689101 29,371 0 0.00 602 2.21 0.0921
2022-05-12 2022-03-31 13F Graphic Packaging Holding Com 388689101 29,371 63 0.21 589 2.97 0.0786
2022-02-14 2021-12-31 13F Graphic Packaging Holding Com 388689101 29,308 543 1.89 572 4.38 0.0728
2021-11-09 2021-09-30 13F Graphic Packaging Holding Com 388689101 28,765 665 2.37 548 7.45 0.0795
2021-08-06 2021-06-30 13F Graphic Packaging Holding Com 388689101 28,100 -2,410 -7.90 510 -7.94 0.0707
2021-05-07 2021-03-31 13F Graphic Packaging Holding Com 388689101 30,510 -1,304 -4.10 554 2.78 0.0805
2021-02-09 2020-12-31 13F Graphic Packaging Holding Com 388689101 31,814 -709 -2.18 539 17.69 0.0828
2020-11-10 2020-09-30 13F Graphic Packaging Holding Com 388689101 32,523 -261 -0.80 458 -0.22 0.0856
2020-08-10 2020-06-30 13F Graphic Packaging Holding Com 388689101 32,784 7,382 29.06 459 48.06 0.0902
2020-05-08 2020-03-31 13F Graphic Packaging Holding Com 388689101 25,402 2,577 11.29 310 -18.42 0.0741
2020-02-07 2019-12-31 13F Graphic Packaging Holding Com 388689101 22,825 1,462 6.84 380 20.63 0.0651
2019-11-12 2019-09-30 13F Graphic Packaging Holding Com 388689101 21,363 1,573 7.95 315 13.72 0.0568
2019-08-06 2019-06-30 13F Graphic Packaging Holding Com 388689101 19,790 0 0.00 277 10.80 0.0509
2019-05-07 2019-03-31 13F Graphic Packaging Holding Com 388689101 19,790 6,034 43.86 250 71.23 0.0485
2019-02-12 2018-12-31 13F Graphic Packaging Holding Com 388689101 13,756 13,756 146 0.0323
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.