Mercer International Inc. (MERC) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

66,963,124Shares Outstanding

11,454,668Shares held by institutions

$23,940,256Value of institutional holdings

71.00%Institutional ownership %

0.89%Shares Changed QoQ

71No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Mercer International Inc. (NASDAQ:MERC) currently has 71 active institutional owners and shareholders as of today (December 2025), that have filed 13F forms with the Securities Exchange Commission (SEC).

Mercer International saw its institutional ownership percentage fell to 71.0% in December 2025 from 71.6% in September 2025.
Quarterly data indicates a 0.89% shift in institutional share volume, and the annual owner count reflects a decrease of 43.20%.
Of these 71 institutional investors, 31 increased their holdings in Mercer International, while 27 of them reduced positions, and 13 investors maintained their exposure.
This class of investors increased its holdings in Mercer International to 47.54Mn shares for the 13F-cycle ending December 2025, up by 419.08K shares quarter on quarter, and down 5.78Mn shares year over year.
As of December 31, 2025, IAT REINSURANCE CO LTD. held Mercer International's largest shareholding position with over 17.22Mn shares, representing 25.72% of total outstanding shares.
Among the most significant buyers of Mercer International during December 2025 were Diameter Capital Partners LP (1.10Mn), BARCLAYS PLC (726.12K), IAT REINSURANCE CO LTD. (520.00K), Verition Fund Management LLC (279.89K), READYSTATE ASSET MANAGEMENT LP (182.31K).
Leading sellers of Mercer International stock in December 2025 included MILLENNIUM MANAGEMENT LLC (972.82K), OPPENHEIMER & CO INC (333.20K), WELLS FARGO & COMPANY/MN (295.40K), DIMENSIONAL FUND ADVISORS LP (214.05K), CITIGROUP INC (198.91K).
The top 10 institutional holders of Mercer International for the quarter ending December 2025 included IAT REINSURANCE CO LTD. (17.22Mn), REDWOOD CAPITAL MANAGEMENT, LLC (4.65Mn), TORONTO DOMINION BANK (3.30Mn), Atlas FRM LLC (3.15Mn), DIMENSIONAL FUND ADVISORS LP (2.82Mn), READYSTATE ASSET MANAGEMENT LP (2.55Mn), Solas Capital Management, LLC (1.61Mn), AMERICAN CENTURY COMPANIES INC (1.16Mn), Diameter Capital Partners LP (1.10Mn), BlackRock, Inc. (1.04Mn).

71 Institutional Holders

11,454,668 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
IAT REINSURANCE CO LTD.	31 Dec, 2025	17,220,000	520,000	3.11%	$34,095,600.00
REDWOOD CAPITAL MANAGEMENT, LLC	31 Dec, 2025	4,648,133	0	0.00%	$9,203,303.00
TORONTO DOMINION BANK	31 Dec, 2025	3,300,000	0	0.00%	$6,534,000.00
Atlas FRM LLC	31 Dec, 2025	3,150,000	0	0.00%	$6,237,000.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	2,819,274	-214,047	-7.06%	$5,582,329.00
READYSTATE ASSET MANAGEMENT LP	31 Dec, 2025	2,551,997	182,312	7.69%	$5,052,954.00
Solas Capital Management, LLC	31 Dec, 2025	1,607,315	-42,717	-2.59%	$3,182,484.00
AMERICAN CENTURY COMPANIES INC	31 Dec, 2025	1,158,077	21,322	1.88%	$2,292,992.00
Diameter Capital Partners LP	31 Dec, 2025	1,100,397	1,100,397	0.00%	$2,178,786.00
BlackRock, Inc.	31 Dec, 2025	1,040,717	18,296	1.79%	$2,060,620.00
WELLS FARGO & COMPANY/MN	31 Dec, 2025	894,700	-295,397	-24.82%	$1,771,506.00
D. E. Shaw & Co., Inc.	31 Dec, 2025	885,918	-154,104	-14.82%	$1,754,118.00
VANGUARD GROUP INC	31 Dec, 2025	828,440	-1,636	-0.20%	$1,640,311.00
BARCLAYS PLC	31 Dec, 2025	739,335	726,120	5,494.67%	$1,463,883.00
WHITEBOX ADVISORS LLC	31 Dec, 2025	686,019	150,000	27.98%	$1,358,318.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	561,001	14,603	2.67%	$1,111,136.00
OPPENHEIMER & CO INC	31 Dec, 2025	420,979	-333,196	-44.18%	$833,538.00
BRIDGEWAY CAPITAL MANAGEMENT, LLC	31 Dec, 2025	379,732	28,607	8.15%	$751,869.00
AEGIS FINANCIAL CORP	31 Dec, 2025	308,927	-80	-0.03%	$611,675.00
Verition Fund Management LLC	31 Dec, 2025	308,622	279,889	974.10%	$611,072.00

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