IR
Superintel
OverviewMarketsWatchlist
© 2026 IR SuperintelMethodologyContact

Mercer International Inc (MERC)

CUSIP: 588056101 | NYSE | Basic Materials · Paper & Paper Products | Micro Cap | 546 institutional holders

Quarters

Q3 2026Q2 2026Q1 2026Q4 2025Q3 2025
CompareDetailedHistoricalFundsOptions13D/13GPeersTargetingTrading SummaryProfile

Beneficial Ownership — 13D / 13G

Full history →

5%+ stakes reported outside the quarterly cycle. A 13D is due within five business days of the event below, so these figures lead the holders table until the filer's next 13F catches up to them.

HolderShares% of ClassChangeEvent Datevs 13F
13GWhitebox General Partner LLC3,590,3505.4%New 5%+ stakeAug 7, 2026No 13F filer matched
13D/APeter R. Kellogg24,469,54037.9%UnchangedMay 19, 2026No 13F filer matched
13D/ACharles K. Kellogg
with Goose Creek Capital, Inc., IAT Reinsurance Company Ltd., Harco National Insurance Company, +1 more
20,220,00030.2%New 5%+ stakeJan 19, 2021No 13F filer matched
13GWhitebox General Partner LLC3,590,350
5.4% of class · Aug 7, 2026New 5%+ stake
No 13F filer matched
13D/APeter R. Kellogg24,469,540
37.9% of class · May 19, 2026Unchanged
No 13F filer matched
13D/ACharles K. Kellogg20,220,000
30.2% of class · Jan 19, 2021New 5%+ stake
with Goose Creek Capital, Inc., IAT Reinsurance Company Ltd., Harco National Insurance Company, +1 more
No 13F filer matched

Institutional Holders — Q3 2026

Dimensional Fund Advisors LP1,368,419
0.0% of portfolio›$424.8K
Net Worth Advisory Group287,699
0.0% of portfolio›$92.7K
Merrion Investment Management Co, LLC150,000
0.0% of portfolio›$46.6K
Fortitude Family Office, LLC35,997
0.0% of portfolio›$11.2K
Imc-Chicago, LLC19,832
0.0% of portfolio›$6.2K
Assenagon Asset Management S.A.12,332
0.0% of portfolio›$3.8K
TD Waterhouse Canada Inc.1,700
0.0% of portfolio›$542
Olistico Wealth, LLC755
0.0% of portfolio›$234
SBI Securities Co., Ltd.481
0.0% of portfolio›$149
CoreCap Advisors, LLC70
0.0% of portfolio›$22
Farther Finance Advisors, LLC44
0.0% of portfolio›$14
Citigroup Inc1
0.0% of portfolio›$0
Caitong International Asset Management Co., Ltd1
0.0% of portfolio›$0
StyleTurnoverLocationFiled
Dimensional Fund Advisors LP
1,368,419$424.8K0.0%IndexLowAustin, TX2026-11-04
Net Worth Advisory Group
287,699$92.7K0.0%GARPMediumSandy, UT2026-10-20
Merrion Investment Management Co, LLC
150,000$46.6K0.0%MomentumLowCranford, NJ2026-10-16
Fortitude Family Office, LLC
35,997$11.2K0.0%ETFMediumScottsdale, AZ2026-10-14
Imc-Chicago, LLC
19,832$6.2K0.0%GARPVery HighChicago, IL2026-11-05
Assenagon Asset Management S.A.
12,332$3.8K0.0%GrowthHighSenningerberg, Netherlands2026-10-15
TD Waterhouse Canada Inc.
1,700$5420.0%CoreLowToronto, Australia2026-10-16
Olistico Wealth, LLC
755$2340.0%GrowthVery LowTulsa, OK2026-10-05
SBI Securities Co., Ltd.
481$1490.0%Agg GrowthLowTokyo, Mexico2026-10-22
CoreCap Advisors, LLC
70$220.0%ETFMediumSouthfield, MI2026-10-08
Farther Finance Advisors, LLC
44$140.0%IndexLowSan Francisco, CA2026-10-08
Citigroup Inc
1$00.0%CoreMediumNew York, NY2026-11-04
Caitong International Asset Management Co., Ltd
1$00.0%GrowthVery HighHong Kong, South Korea2026-10-29