MERC · Mercer International Inc. · Holdings

$0.39 +0.01 (+2.09%)

Market Cap

$25.29M

67.02M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP →

Quarter:

Holders: 68

Total Value: $16,699,512

Total Shares: 42,892,338

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 68 13F filers · Δ vs Mar 31, 2026

Top Holder

18.4%

−17.3 pts

Top 5

60.6%

−5.0 pts

Top 10

76.4%

−3.9 pts

HHI

928

Broadly held−646

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: -9

Institutional value: -75.6%

Shares held: -11.1%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Small IAT REINSURANCE CO LTD.	+1,000,000	18,220,000
Mega BARCLAYS PLC	+630,889	3,950,970
Mid WHITEBOX ADVISORS LLC	+411,080	1,468,738
Large MARSHALL WACE, LLP	+147,065	287,868
Large Squarepoint Ops LLC	+143,301	161,818

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Mid Atlas FRM LLC	−2,553,209	596,791
Large READYSTATE ASSET MANAGEMENT LP	−1,353,838	30,000
Mega WELLS FARGO & COMPANY/MN	−1,054,178	2,612
Mega DIMENSIONAL FUND ADVISORS LP	−590,732	1,963,354
Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC	−184,213	204,636

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Large HRT FINANCIAL LP	106,785	$70,478
Mega SG Americas Securities, LLC	39,492	$26,064
Small LRI Investments, LLC	37,000	$24,420
Mid IMC-Chicago, LLC	18,432	$12,165
Mid GROUP ONE TRADING LLC	14,879	$9,820

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Mega AMERICAN CENTURY COMPANIES INC	1,012,593	$1,437,882
Small Solas Capital Management, LLC	790,338	$1,122,279
Mid Graham Capital Management, L.P.	135,587	$192,533
Mega GOLDMAN SACHS GROUP INC	61,181	$86,877
Large Assenagon Asset Management S.A.	58,894	$83,629

Filter: New 7 Increased 20 Reduced 19 Sold out 16 Unchanged 22

Showing 70 of 70

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

REDWOOD CAPITAL MANAGEMENT, LLC

$3,067,767

18.37%

4,648,133

BARCLAYS PLC

$2,607,639

15.62%

3,950,970

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS BANK PLC	748	$493	0.0%	Defined
BARCLAYS CAPITAL INC.	3,950,222	$2,607,146	100.0%	Defined

TORONTO DOMINION BANK

$2,178,000

13.04%

3,300,000

DIMENSIONAL FUND ADVISORS LP

$1,295,811

7.76%

1,963,354

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Dimensional Fund Advisors Ltd.	4,706	$3,105	0.2%	Defined
DFA Australia Ltd.	5,210	$3,438	0.3%	Defined
Dimensional Ireland Ltd	119,271	$78,718	6.1%	Defined
Held directly	1,834,167	$1,210,550	93.4%	Sole

WHITEBOX ADVISORS LLC

$969,367

5.80%

1,468,738

BlackRock, Inc.

$798,178

4.78%

1,209,362

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BLACKROCK FINANCIAL MANAGEMENT INC/DE	58,260	$38,451	4.8%	Sole
BlackRock Fund Advisors	545,844	$360,257	45.1%	Sole
BlackRock Institutional Trust Company, N.A.	605,258	$399,470	50.0%	Sole

FRANKLIN RESOURCES INC

$519,664

3.11%

787,371

Benefit Street Partners LLC

$519,664

3.11%

787,371

IAT REINSURANCE CO LTD.

$415,800

2.49%

18,220,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Acceptance Casualty Insurance Company joint	18,220,000	$415,800	100.0%	Defined

Atlas FRM LLC

$393,881

2.36%

596,791

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Atlas Capital Resources GP III LLC joint	209,346	$138,168	35.1%	Defined
Atlas Capital Resources GP IV LLC joint	387,445	$255,713	64.9%	Defined

D. E. Shaw & Co., Inc.

$384,357

2.30%

582,361

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
D. E. SHAW & CO, L.P.	222,380	$146,770	38.2%	Defined
D. E. Shaw Investment Management, L.L.C. joint	359,981	$237,587	61.8%	Defined

GSA CAPITAL PARTNERS LLP

$379,171

2.27%

574,502

GEODE CAPITAL MANAGEMENT, LLC

$330,273

1.98%

500,415

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	93,557	$61,747	18.7%	Defined
Held directly	406,858	$268,526	81.3%	Defined

VANGUARD CAPITAL MANAGEMENT LLC

$314,067

1.88%

475,860

Verition Fund Management LLC

$269,489

1.61%

408,317

AEGIS FINANCIAL CORP

$203,891

1.22%

308,927

MARSHALL WACE, LLP

$189,992

1.14%

287,868

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Marshall Wace North America L.P. joint	287,868	$189,992	100.0%	Other

VANGUARD FIDUCIARY TRUST CO

$144,825

0.87%

219,432

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

$144,512

0.87%

218,958

STATE STREET CORP

$142,316

0.85%

215,631

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STATE STREET GLOBAL ADVISORS TRUST COMPANY	215,631	$142,316	100.0%	Defined

BRIDGEWAY CAPITAL MANAGEMENT, LLC

$135,059

0.81%

204,636

Squarepoint Ops LLC

$106,799

0.64%

161,818

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Squarepoint Capital LLP	161,818	$106,799	100.0%	Defined

Cerity Partners LLC

$99,052

0.59%

150,080

UBS Group AG

$99,017

0.59%

150,027

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS AG	130,828	$86,346	87.2%	Defined
UBS Switzerland AG	19,199	$12,671	12.8%	Defined

Merrion Investment Management Co, LLC

$99,000

0.59%

150,000

VANGUARD PORTFOLIO MANAGEMENT LLC

$77,909

0.47%

118,044

NORTHERN TRUST CORP

$73,405

0.44%

111,221

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NORTHERN TRUST CO joint	111,221	$73,405	100.0%	Defined

HRT FINANCIAL LP

$70,478

0.42%

106,785

Empowered Funds, LLC

$67,145

0.40%

101,736

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Bridgeway Capital Management, LLC	101,736	$67,145	100.0%	Other

Jain Global LLC

$48,871

0.29%

74,048

CITADEL ADVISORS LLC

$41,382

0.25%

62,700

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	62,700	$41,382	100.0%	Defined

RENAISSANCE TECHNOLOGIES LLC

$41,257

0.25%

62,511

TUDOR INVESTMENT CORP ET AL

$37,280

0.22%

56,485

SHUFRO ROSE & CO LLC

$35,970

0.22%

54,500

Engineers Gate Manager LP

$28,434

0.17%

43,082

XTX Topco Ltd

$27,978

0.17%

42,391

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	42,391	$27,978	100.0%	Defined

R Squared Ltd

$27,176

0.16%

41,177

SG Americas Securities, LLC

$26,064

0.16%

39,492

WOLVERINE ASSET MANAGEMENT LLC

$26,004

0.16%

39,400

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Wolverine Holdings, LLC	39,400	$26,004	100.0%	Defined

LRI Investments, LLC

$24,420

0.15%

37,000

Net Worth Advisory Group

$20,051

0.12%

30,381

READYSTATE ASSET MANAGEMENT LP

$19,800

0.12%

30,000

KESTRA PRIVATE WEALTH SERVICES, LLC

$19,140

0.11%

29,000

WOLVERINE ASSET MANAGEMENT LLC

$17,622

0.11%

26,700

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Wolverine Holdings, LLC	26,700	$17,622	100.0%	Defined

Virtu Financial LLC

$17,024

0.10%

25,794

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Virtu Americas LLC	25,794	$17,024	100.0%	Defined

CITADEL ADVISORS LLC

$15,645

0.09%

23,705

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	23,705	$15,645	100.0%	Defined

PRICE T ROWE ASSOCIATES INC /MD/

$15,183

0.09%

23,005

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
T. Rowe Price International Ltd	23,005	$15,183	100.0%	Defined

Daytona Street Capital LLC

$13,200

0.08%

20,000

OPPENHEIMER & CO INC

$12,710

0.08%

19,259

IMC-Chicago, LLC

$12,165

0.07%

18,432

LPL Financial LLC

$10,928

0.07%

16,558

GROUP ONE TRADING LLC

$9,820

0.06%

14,879

Vanguard Global Advisers, LLC

$9,799

0.06%

14,847

Point72 Asset Management, L.P.

$8,492

0.05%

12,867

JMN Financial LLC

$7,155

0.04%

10,841

Joel Isaacson & Co., LLC

$6,600

0.04%

10,000

Arax Advisory Partners

$6,204

0.04%

9,400

MORGAN STANLEY

$5,444

0.03%

8,255

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO INTERNATIONAL PLC	6,827	$4,505	82.8%	Defined
MORGAN STANLEY & CO. LLC	6	$3	0.1%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	4	$2	0.0%	Defined
MORGAN STANLEY SMITH BARNEY LLC	358	$235	4.3%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	1,060	$699	12.8%	Defined

NATIONAL BANK OF CANADA /FI/

$3,762

0.02%

5,700

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
National Bank Financial Inc.	5,700	$3,762	100.0%	Defined

WELLS FARGO & COMPANY/MN

$1,723

0.01%

2,612

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO CLEARING SERVICES, LLC	2,612	$1,723	100.0%	Defined

Zurcher Kantonalbank (Zurich Cantonalbank)

$1,682

0.01%

2,549

NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO

$1,254

0.01%

1,900

TD Waterhouse Canada Inc.

$1,122

0.01%

1,700

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TORONTO DOMINION BANK	1,700	$1,122	100.0%	Defined

OSAIC HOLDINGS, INC.

$504

0.00%

764

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	764	$504	100.0%	Defined

Olistico Wealth, LLC

$498

0.00%

755

BNP PARIBAS ARBITRAGE, SA

$295

0.00%

447

SBI Securities Co., Ltd.

$287

0.00%

435

Farther Finance Advisors, LLC

$29

0.00%

Intesa Sanpaolo S.p.A.

0.00%

Caitong International Asset Management Co., Ltd

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
AMERICAN CENTURY INVESTMENT MANAGEMENT INC	1,012,593	$1,437,882	100.0%	Defined

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	61,181	$86,877	100.0%	Defined

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Invesco Capital Management LLC	39,288	$55,788	100.0%	Defined

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
J.P. Morgan Securities LLC	18,470	$26,227	100.0%	Defined

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Fidelity Management & Research Co LLC	2,127	$3,020	20.2%	Defined
STRATEGIC ADVISERS LLC	8,400	$11,928	79.8%	Defined

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RBC Capital Markets, LLC	4,600	$6,532	100.0%	Defined

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Fidelity Institutional Asset Management Trust Co	98	$139	100.0%	Sole

Key facts CIK 1333274 CUSIP 588056101 13F (30d) 47 filings 47 filers Visit website Investor relations