Mercer International Inc.
US ˙ NasdaqGS ˙ US5880561015

SecurityMERC / Mercer International Inc.
InstitutionSusquehanna International Group, Llp
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Susquehanna International Group, Llp ownership in MERC / Mercer International Inc.

On August 14, 2025 - Susquehanna International Group, Llp filed a 13F-HR form disclosing ownership of 0 shares of Mercer International Inc. (US:MERC) valued at $0 USD as of June 30, 2025. The entity filed a previous 13F-HR on May 14, 2025 disclosing 72,993 shares of Mercer International Inc.. This represents a change in shares of -100.00% during the quarter. The current value of the position is $0 USD.

Susquehanna International Group, Llp has a history of taking positions in derivatives of the underlying security (MERC) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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 .

Institutional Put/Call Ratios
(Premium Subscription Required)

In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MERC / Mercer International Inc. Historical Put/Call Ratio
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)
2025-08-14 2025-06-30 13F MERCER INTL COM 588056101 0 -72,993 -100.00 0 -100.00
2025-05-14 2025-03-31 13F MERCER INTL COM 588056101 72,993 -80,026 -52.30 449 -54.93 0.0001
2025-02-14 2024-12-31 13F MERCER INTL COM 588056101 153,019 -30,299 -16.53 995 -19.90 0.0002
2024-11-14 2024-09-30 13F MERCER INTL COM 588056101 183,318 183,318 1,241 0.0002
2024-08-15 2024-06-30 13F MERCER INTL COM 588056101 0 -124,114 -100.00 0 -100.00
2024-05-07 2024-03-31 13F MERCER INTL COM 588056101 124,114 124,114 1,235 0.0002
2024-02-14 2023-12-31 13F MERCER INTL COM 588056101 0 -284,112 -100.00 0 -100.00
2023-11-14 2023-09-30 13F MERCER INTL COM 588056101 284,112 98,508 53.07 2,438 62.79 0.0005
2023-08-11 2023-06-30 13F MERCER INTL COM 588056101 185,604 154,982 506.11 1,498 400.67 0.0003
2023-05-16 2023-03-31 13F MERCER INTL COM 588056101 30,622 11,892 63.49 299 37.16 0.0001
2023-02-14 2022-12-31 13F MERCER INTL COM 588056101 18,730 -53,340 -74.01 218 -75.40 0.0001
2022-11-14 2022-09-30 13F MERCER INTL COM 588056101 72,070 58,503 431.22 886 397.75 0.0002
2022-08-15 2022-06-30 13F MERCER INTL COM 588056101 13,567 13,567 178 0.0000
2022-05-16 2022-03-31 13F MERCER INTL COM 588056101 0 -12,079 -100.00 0 -100.00
2022-04-05 2021-12-31 13F/A-1 MERCER INTL COM 588056101 12,079 -41,603 -77.50 145 -76.69 0.0000
2022-02-14 2021-12-31 13F MERCER INTL COM 588056101 12,079 -41,603 145 0.0000
2021-11-15 2021-09-30 13F MERCER INTL COM 588056101 53,682 -13,208 -19.75 622 -27.08 0.0001
2021-08-11 2021-06-30 13F MERCER INTL COM 588056101 66,890 18,395 37.93 853 22.21 0.0001
2021-05-17 2021-03-31 13F MERCER INTL COM 588056101 48,495 31,348 182.82 698 296.59 0.0001
2021-03-26 2020-12-31 13F/A-1 MERCER INTL COM 588056101 17,147 17,147 176 0.0000
2021-02-16 2020-12-31 13F MERCER INTL COM 588056101 17,147 17,147 176 0.0000
2020-11-16 2020-09-30 13F MERCER INTL COM 588056101 0 -20,298 -100.00 0 -100.00
2020-08-14 2020-06-30 13F MERCER INTL COM 588056101 20,298 -13,386 -39.74 166 -31.97 0.0000
2020-05-15 2020-03-31 13F MERCER INTL COM 588056101 33,684 21,966 187.46 244 69.44 0.0001
2020-02-14 2019-12-31 13F MERCER INTL COM 588056101 11,718 -31,209 -72.70 144 -78.31 0.0000
2019-11-14 2019-06-30 13F/A-2 MERCER INTL COM 588056101 42,927 42,927 0.00 664 0.00 0.0002
2019-08-16 2019-06-30 13F/A-1 MERCER INTL COM 588056101 42,927 0 664 0.0002
2019-05-15 2019-03-31 13F MERCER INTL COM 588056101 0 -36,685 -100.00 0 -100.00
2019-02-14 2018-12-31 13F MERCER INTL COM 588056101 36,685 7,231 24.55 383 -22.63 0.0002
2018-11-14 2018-09-30 13F MERCER INTL COM 588056101 29,454 5,386 22.38 495 17.58 0.0002
2018-08-14 2018-06-30 13F MERCER INTL COM 588056101 24,068 -91,753 -79.22 421 -70.80 0.0001
2018-05-15 2018-03-31 13F MERCER INTL COM 588056101 115,821 98,721 577.32 1,442 488.57 0.0005
2018-02-14 2017-12-31 13F MERCER INTL COM 588056101 17,100 0 0.00 245 20.69 0.0001
2017-11-14 2017-09-30 13F MERCER INTL COM 588056101 17,100 -9,889 -36.64 203 -34.73 0.0001
2017-08-15 2017-06-30 13F MERCER INTL COM 588056101 26,989 10,889 67.63 311 65.43 0.0001
2017-05-15 2017-03-31 13F MERCER INTL COM 588056101 16,100 -31,861 -66.43 188 -63.21 0.0001
2017-02-14 2016-12-31 13F MERCER INTL COM 588056101 47,961 -116,169 -70.78 511 -63.24 0.0003
2016-11-14 2016-09-30 13F MERCER INTL COM 588056101 164,130 -28,248 -14.68 1,390 -9.45 0.0007
2016-08-15 2016-06-30 13F MERCER INTL COM 588056101 192,378 -2,731 -1.40 1,535 -16.76 0.0008
2016-05-13 2016-03-31 13F MERCER INTL COM 588056101 195,109 78,942 67.96 1,844 75.45 0.0010
2016-02-26 2015-12-31 13F/A-1 MERCER INTL COM 588056101 116,167 17,558 17.81 1,051 6.27 0.0005
2016-02-16 2015-12-31 13F MERCER INTL COM 588056101 116,167 1,051
2015-11-16 2015-09-30 13F MERCER INTL COM 588056101 98,609 -76,905 -43.82 989 -58.81 0.0004
2015-08-14 2015-06-30 13F MERCER INTL COM 588056101 175,514 97,492 124.95 2,401 100.42 0.0010
2015-05-15 2015-03-31 13F MERCER INTL COM 588056101 78,022 61,563 374.04 1,198 493.07 0.0005
2015-02-17 2014-12-31 13F MERCER INTL COM 588056101 16,459 1,794 12.23 202 41.26 0.0001
2014-11-17 2014-09-30 13F MERCER INTL COM 588056101 14,665 -67,782 -82.21 143 -76.86 0.0001
2014-05-14 2014-03-31 13F MERCER INTL COM 588056101 82,447 82,447 618 0.0003
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-02-17 2025-12-31 13F MERCER INTL COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-11-14 2025-09-30 13F MERCER INTL COM Call 39,500 114 n/a n/a n/a
2025-08-14 2025-06-30 13F MERCER INTL COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-05-14 2025-03-31 13F MERCER INTL COM Call 41,400 -8.20 255 -13.31 n/a n/a n/a
2025-02-14 2024-12-31 13F MERCER INTL COM Call 45,100 -63.95 293 -65.37 n/a n/a n/a
2024-11-14 2024-09-30 13F MERCER INTL COM Call 125,100 -14.32 847 -32.10 n/a n/a n/a
2024-08-15 2024-06-30 13F MERCER INTL COM Call 146,000 664.40 1,247 555.79 n/a n/a n/a
2024-05-07 2024-03-31 13F MERCER INTL COM Call 19,100 -91.36 190 -90.94 n/a n/a n/a
2024-02-14 2023-12-31 13F MERCER INTL COM Call 221,100 -11.88 2,096 -2.60 n/a n/a n/a
2023-11-14 2023-09-30 13F MERCER INTL COM Call 250,900 236.33 2,153 257.48 n/a n/a n/a
2023-08-11 2023-06-30 13F MERCER INTL COM Call 74,600 233.04 602 174.89 n/a n/a n/a
2023-05-16 2023-03-31 13F MERCER INTL COM Call 22,400 -79.24 219 -82.55 n/a n/a n/a
2023-02-14 2022-12-31 13F MERCER INTL COM Call 107,900 194.01 1,256 178.27 n/a n/a n/a
2022-11-14 2022-09-30 13F MERCER INTL COM Call 36,700 70.70 451 59.36 n/a n/a n/a
2022-08-15 2022-06-30 13F MERCER INTL COM Call 21,500 80.67 283 70.48 n/a n/a n/a
2022-05-16 2022-03-31 13F MERCER INTL COM Call 11,900 166 n/a n/a n/a
2021-11-15 2021-09-30 13F MERCER INTL COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-08-11 2021-06-30 13F MERCER INTL COM Call 28,300 -65.49 361 -69.41 n/a n/a n/a
2021-05-17 2021-03-31 13F MERCER INTL COM Call 82,000 234.69 1,180 370.12 n/a n/a n/a
2021-03-26 2020-12-31 13F/A MERCER INTL COM Call 24,500 251 n/a n/a n/a
2021-02-16 2020-12-31 13F MERCER INTL COM Call 24,500 251 n/a n/a n/a
2020-08-14 2020-06-30 13F MERCER INTL COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-05-15 2020-03-31 13F MERCER INTL COM Call 14,100 -31.88 102 -60.00 n/a n/a n/a
2020-02-14 2019-12-31 13F MERCER INTL COM Call 20,700 255 n/a n/a n/a
2019-08-14 2019-06-30 13F MERCER INTL COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-05-15 2019-03-31 13F MERCER INTL COM Call 28,700 388 n/a n/a n/a
2019-02-14 2018-12-31 13F MERCER INTL COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-11-14 2018-09-30 13F MERCER INTL COM Call 36,400 -44.00 612 -46.22 n/a n/a n/a
2018-08-14 2018-06-30 13F MERCER INTL COM Call 65,000 247.59 1,138 388.41 n/a n/a n/a
2018-05-15 2018-03-31 13F MERCER INTL COM Call 18,700 79.81 233 56.38 n/a n/a n/a
2018-02-14 2017-12-31 13F MERCER INTL COM Call 10,400 -37.72 149 -24.75 n/a n/a n/a
2017-11-14 2017-09-30 13F MERCER INTL COM Call 16,700 -67.38 198 -66.38 n/a n/a n/a
2017-08-15 2017-06-30 13F MERCER INTL COM Call 51,200 88.93 589 85.80 n/a n/a n/a
2017-05-15 2017-03-31 13F MERCER INTL COM Call 27,100 110.08 317 131.39 n/a n/a n/a
2017-02-14 2016-12-31 13F MERCER INTL COM Call 12,900 137 n/a n/a n/a
2016-11-14 2016-09-30 13F MERCER INTL COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2016-08-15 2016-06-30 13F MERCER INTL COM Call 18,800 49.21 150 26.05 n/a n/a n/a
2016-05-13 2016-03-31 13F MERCER INTL COM Call 12,600 -41.12 119 -38.66 n/a n/a n/a
2016-02-26 2015-12-31 13F/A MERCER INTL COM Call 21,400 194 n/a n/a n/a
2016-02-16 2015-12-31 13F MERCER INTL COM Call 13,600 123 n/a n/a n/a
2014-11-17 2014-09-30 13F MERCER INTL COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2014-08-14 2014-06-30 13F MERCER INTL COM Call 12,300 129 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-02-17 2025-12-31 13F MERCER INTL COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-11-14 2025-09-30 13F MERCER INTL COM Put 16,200 -39.10 47 -50.54 n/a n/a n/a
2025-08-14 2025-06-30 13F MERCER INTL COM Put 26,600 -14.74 93 -51.31 n/a n/a n/a
2025-05-14 2025-03-31 13F MERCER INTL COM Put 31,200 16.85 192 10.40 n/a n/a n/a
2025-02-14 2024-12-31 13F MERCER INTL COM Put 26,700 -17.08 174 -20.28 n/a n/a n/a
2024-11-14 2024-09-30 13F MERCER INTL COM Put 32,200 218 n/a n/a n/a
2024-08-15 2024-06-30 13F MERCER INTL COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-05-07 2024-03-31 13F MERCER INTL COM Put 17,400 -25.96 173 -22.07 n/a n/a n/a
2024-02-14 2023-12-31 13F MERCER INTL COM Put 23,500 78.03 223 96.46 n/a n/a n/a
2023-11-14 2023-09-30 13F MERCER INTL COM Put 13,200 113 n/a n/a n/a
2023-08-11 2023-06-30 13F MERCER INTL COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-05-16 2023-03-31 13F MERCER INTL COM Put 20,700 -33.65 202 -44.35 n/a n/a n/a
2023-02-14 2022-12-31 13F MERCER INTL COM Put 31,200 -62.63 363 -64.65 n/a n/a n/a
2022-11-14 2022-09-30 13F MERCER INTL COM Put 83,500 1,027 n/a n/a n/a
2022-04-05 2021-12-31 13F/A MERCER INTL COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-02-14 2021-12-31 13F MERCER INTL COM Put 0 0 n/a n/a n/a
2021-11-15 2021-09-30 13F MERCER INTL COM Put 62,700 9.42 727 -0.55 n/a n/a n/a
2021-08-11 2021-06-30 13F MERCER INTL COM Put 57,300 93.58 731 71.60 n/a n/a n/a
2021-05-17 2021-03-31 13F MERCER INTL COM Put 29,600 426 n/a n/a n/a
2020-11-16 2020-09-30 13F MERCER INTL COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-08-14 2020-06-30 13F MERCER INTL COM Put 52,100 85.41 425 109.36 n/a n/a n/a
2020-05-15 2020-03-31 13F MERCER INTL COM Put 28,100 57.87 203 -7.31 n/a n/a n/a
2020-02-14 2019-12-31 13F MERCER INTL COM Put 17,800 -68.99 219 -75.34 n/a n/a n/a
2019-08-16 2019-06-30 13F/A MERCER INTL COM Put 57,400 888 n/a n/a n/a
2019-11-14 2019-06-30 13F/A MERCER INTL COM Put 57,400 0.00 888 0.00 n/a n/a n/a
2019-08-14 2019-06-30 13F MERCER INTL COM Put 57,400 888 n/a n/a n/a
2018-08-14 2018-06-30 13F MERCER INTL COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-05-15 2018-03-31 13F MERCER INTL COM Put 46,300 313.39 576 260.00 n/a n/a n/a
2018-02-14 2017-12-31 13F MERCER INTL COM Put 11,200 160 n/a n/a n/a
2017-11-14 2017-09-30 13F MERCER INTL COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2017-08-15 2017-06-30 13F MERCER INTL COM Put 47,900 280.16 551 274.83 n/a n/a n/a
2017-05-15 2017-03-31 13F MERCER INTL COM Put 12,600 -51.91 147 -33.78 n/a n/a n/a
2016-11-14 2016-09-30 13F MERCER INTL COM Put 26,200 16.96 222 24.02 n/a n/a n/a
2016-08-15 2016-06-30 13F MERCER INTL COM Put 22,400 100.00 179 68.87 n/a n/a n/a
2016-05-13 2016-03-31 13F MERCER INTL COM Put 11,200 106 n/a n/a n/a
2015-05-15 2015-03-31 13F MERCER INTL COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2015-02-17 2014-12-31 13F MERCER INTL COM Put 18,500 -38.74 227 -22.79 n/a n/a n/a
2014-11-17 2014-09-30 13F MERCER INTL COM Put 30,200 167.26 294 147.06 n/a n/a n/a
2014-08-14 2014-06-30 13F MERCER INTL COM Put 11,300 -81.57 119 -74.13 n/a n/a n/a
2014-05-14 2014-03-31 13F MERCER INTL COM Put 61,300 460 n/a n/a n/a
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.