Mercer International Inc.
DE ˙ DB ˙ US5880561015
0,74 € ↑0,01 (0,82%)
2026-06-05
DEL PRIS
SecurityDE:AEZ / Mercer International Inc.
InstitutionIat Reinsurance Co Ltd.
Latest Disclosed Ownership17,220,000 shares
Latest Disclosed Value $ 24,452,400
Iat Reinsurance Co Ltd. ownership in AEZ / Mercer International Inc.

On May 13, 2026 - Iat Reinsurance Co Ltd. filed a 13F-HR form disclosing ownership of 17,220,000 shares of Mercer International Inc. (DE:AEZ) valued at $21,180,600 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 17,220,000 shares of Mercer International Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $12,673,920 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-13 2026-03-31 13F MERCER INTERNATIONAL INC SBI Com 588056101 17,220,000 0 0.00 24,452 -28.28 7.8978
2026-02-10 2025-12-31 13F MERCER INTERNATIONAL INC SBI Com 588056101 17,220,000 520,000 3.11 34,096 -29.11 9.9847
2025-11-10 2025-09-30 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,700,000 220,000 1.33 48,096 -16.62 10.1284
2025-08-04 2025-06-30 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 0 0.00 57,680 -43.09 12.9606
2025-05-07 2025-03-31 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 0 0.00 101,352 -5.38 21.1597
2025-02-12 2024-12-31 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 0 0.00 107,120 -3.99 22.6126
2024-11-08 2024-09-30 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 0 0.00 111,570 -20.73 25.2595
2024-08-02 2024-06-30 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 0 0.00 140,739 2,145.36 29.6935
2024-05-09 2024-03-31 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 0 0.00 6,268 -95.99 2.7860
2024-02-08 2023-12-31 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 0 0.00 156,230 10.49 28.8849
2023-11-13 2023-09-30 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 0 0.00 141,398 6.32 28.0089
2023-08-04 2023-06-30 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 0 0.00 132,994 -17.44 25.6939
2023-05-10 2023-03-31 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 0 0.00 161,092 -16.02 32.9626
2023-02-09 2022-12-31 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 0 0.00 191,827 -5.37 37.9263
2022-11-07 2022-09-30 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 0 0.00 202,704 -6.46 38.9505
2022-08-12 2022-06-30 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 0 0.00 216,712 -5.73 39.4947
2022-05-09 2022-03-31 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 0 0.00 229,896 16.35 16.6942
2022-02-11 2021-12-31 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 0 0.00 197,595 3.45 32.4373
2021-11-15 2021-09-30 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 0 0.00 191,003 -9.10 28.6372
2021-08-13 2021-06-30 13F/A-1 MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 0 0.00 210,120 -11.40 28.3350
2021-08-06 2021-06-30 13F MERCER INTERNATIONAL INC SBI Com 588056101 630,000 -15,850,000 210,120 28.3350
2021-05-11 2021-03-31 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 0 0.00 237,147 40.39 36.1146
2021-02-01 2020-12-31 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 0 0.00 168,920 55.30 34.5366
2020-11-13 2020-09-30 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 0 0.00 108,768 -19.12 26.8470
2020-08-12 2020-06-30 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 0 0.00 134,477 12.71 36.8688
2020-05-11 2020-03-31 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 0 0.00 119,315 -41.14 33.7928
2020-02-12 2019-12-31 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 0 0.00 202,704 -1.91 37.0033
2019-11-15 2019-09-30 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 140,000 0.86 206,659 -18.25 35.5035
2019-08-07 2019-06-30 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,340,000 0 0.00 252,780 14.51 39.9504
2019-05-14 2019-03-31 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,340,000 -140,000 -0.85 220,753 28.31 37.4992
2019-02-08 2018-12-31 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 0 0.00 172,051 -37.86 32.6963
2018-11-09 2018-09-30 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 0 0.00 276,864 -4.00 40.3562
2018-08-07 2018-06-30 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 0 0.00 288,400 40.56 42.5562
2018-05-11 2018-03-31 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 0 0.00 205,176 -12.94 31.7205
2018-02-08 2017-12-31 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,480,000 12,500 0.08 235,664 20.77 32.8973
2017-11-06 2017-09-30 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,467,500 11,177 0.07 195,140 3.11 30.1091
2017-08-08 2017-06-30 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,456,323 100 0.00 189,248 -1.71 32.1891
2017-05-11 2017-03-31 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,456,223 0 0.00 192,538 9.86 34.6430
2017-02-13 2016-12-31 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,456,223 0 0.00 175,259 25.74 30.1994
2016-11-14 2016-09-30 13F MERCER INTERNATIONAL INC SBI Com 588056101 16,456,223 15,828,193 2,520.29 139,384 2,681.01 27.1103
2016-08-15 2016-06-30 13F MERCER INTERNATIONAL INC SBI Com 588056101 628,030 0 0.00 5,012 -15.55 3.4856
2016-05-13 2016-03-31 13F MERCER INTERNATIONAL INC SBI Com 588056101 628,030 0 0.00 5,935 4.42 3.9365
2016-02-03 2015-12-31 13F MERCER INTERNATIONAL INC SBI Com 588056101 628,030 -15,128,193 -96.01 5,684 -96.40 3.7883
2015-11-05 2015-09-30 13F MERCER INTERNATIONAL INC SBI Com 588056101 15,756,223 0 0.00 158,035 -26.68 30.3245
2015-08-11 2015-06-30 13F MERCER INTERNATIONAL INC SBI Com 588056101 15,756,223 150,000 0.96 215,545 -10.08 34.0095
2015-05-14 2015-03-31 13F MERCER INTERNATIONAL INC SBI Com 588056101 15,606,223 0 0.00 239,712 24.98 36.5741
2015-03-04 2014-12-31 13F/A-1 MERCER INTERNATIONAL INC SBI Com 588056101 15,606,223 15,606,223 191,800 26.6115
2015-02-13 2014-12-31 13F MERCER INTERNATIONAL INC SBI Com 588056101 15,606,223 7,718 4.2168
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.