Mercer International Inc.
Mercer International Inc. (MERC) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · MERC · as of Mar 31, 2025
Ownership Breakdown
119
Institutional Holders
▼ 11 vs Q4
$323.10M
Total Inst. Value
▼ $19.84M vs Q4
66.98M
Shares Outstanding
freeFloat 57.56%
52.53M
13F Shares Held
▼ 227,893 vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
MERC largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
IAT REINSURANCE CO LTD. pulp mills | 16.48M | 24.66% | 24.66% | $101.35B | May 7, 2025 | — held |
BOUNDARY CREEK ADVISORS LP pulp mills | 3.98M | 5.96% | 5.96% | $24.49B | May 16, 2025 | ▼ 254.3K |
TORONTO DOMINION BANK pulp mills | 3.30M | 4.94% | 4.94% | $20.30B | May 15, 2025 | — held |
DIMENSIONAL FUND ADVISORS LP pulp mills | 3.21M | 4.81% | 4.81% | $19.77B | May 13, 2025 | ▼ 239.1K |
ATLAS FRM LLC pulp mills | 3.15M | 4.71% | 4.71% | $19.37B | May 15, 2025 | — held |
GATES CAPITAL MANAGEMENT, INC. pulp mills | 2.29M | 3.43% | 3.43% | $14.09B | May 15, 2025 | ▲ 1.25M |
REDWOOD CAPITAL MANAGEMENT, LLC pulp mills | 1.71M | 2.56% | 2.56% | $10.53B | May 15, 2025 | — held |
MILLENNIUM MANAGEMENT LLC pulp mills | 1.63M | 2.44% | 2.44% | $10.02B | May 15, 2025 | ▼ 101.6K |
WELLS FARGO & COMPANY/MN pulp mills | 1.45M | 2.17% | 2.17% | $8.92B | May 13, 2025 | ▲ 112.6K |
READYSTATE ASSET MANAGEMENT LP pulp mills | 1.26M | 1.88% | 1.88% | $7.73B | May 6, 2025 | ▲ 124.0K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
21
Increased
+3.01M shares1
New Positions
first time holders20
Decreased
−1.83M shares0
Sold Out
fully exitedNet shares change (top 50)
+1.17M
+3.01M / −1.83M
Net new holders
+2
1 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
MERC insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
24
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Ridder Wolfram Senior VP, Innovation & Gov. | Jun 4, 2026 | Award | 18,665 | — | — | 18.7K | Form 4 ↗ |
BECK WOLFGANG Senior VP Global Wood Sourcing | Jun 4, 2026 | Award | 12,967 | — | — | 13.0K | Form 4 ↗ |
Short Richard George CFO & Secretary | Jun 4, 2026 | Award | 31,504 | — | — | 31.5K | Form 4 ↗ |
ARGUIN GUY Chief Human Resources Officer | Jun 4, 2026 | Award | 13,612 | — | — | 13.6K | Form 4 ↗ |
STANNUS GENEVIEVE VP, Treasurer | Jun 4, 2026 | Award | 8,583 | — | — | 8.6K | Form 4 ↗ |
Heine Eric Xavier VP Sales, Marketing& Logistics | Jun 4, 2026 | Award | 10,750 | — | — | 10.8K | Form 4 ↗ |
ALEKSON CYNTHIA MARGARET VP, Controller | Jun 4, 2026 | Award | 7,188 | — | — | 7.2K | Form 4 ↗ |
Merforth Carsten COO, Wood Products | Jun 4, 2026 | Award | 26,764 | — | — | 26.8K | Form 4 ↗ |
Koppensteiner Adolf COO, Pulp Products | Jun 4, 2026 | Award | 30,505 | — | — | 30.5K | Form 4 ↗ |
BUENO ESTRADA JUAN CARLOS CEO & President | Jun 4, 2026 | Award | 126,808 | — | — | 126.8K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Mercer International Inc. (MERC) is primarily owned by institutional investors, who hold approximately 78.4% of total shares outstanding. Company insiders own approximately 42.44%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Mercer International Inc. is IAT REINSURANCE CO LTD., holding approximately 16.48 million shares — equal to 24.66% of outstanding shares — as of March 31, 2025.
A total of 119 institutional investors currently hold MERC stock, with a combined institutional value of approximately $323,102,111 as of the most recent 13F filing period.
Frequently asked questions
MERC ownershipMercer International Inc. (MERC) is primarily owned by institutional investors, who hold approximately 78.4% of shares. The largest shareholder is IAT REINSURANCE CO LTD. with a 24.66% stake. Company insiders hold 42.44%. Data sourced from SEC Form 13F as of March 31, 2025.