Every Form 4 that Mercer International Inc (MERC) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow MERC and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full MERC filings page.
MERCER INTERNATIONAL INC. major shareholder Peter R. Kellogg filed a Form 4 updating his indirect holdings in the company. As of 2026-06-01, an entity referenced as Occidental holds 510,000 shares of Mercer common stock indirectly attributable to him, with no explicit buy or sell transaction reported.
Mercer International Inc. ten percent owner Peter R. Kellogg reported a series of open-market purchases of Common Stock in early June 2026. He bought a total of 419,743 shares at prices between about $0.79 and $0.93 per share.
Following these purchases, Kellogg directly owns 1,385,672 Common shares. He also reports substantial indirect holdings through various entities, including 13,475,000 shares held via IAT Insurance Co. Ltd. and other positions via partnerships, insurance companies, trusts, foundations, and his spouse.
Ridder Wolfram reported acquisition or exercise transactions in this Form 4 filing.
Mercer International Inc. reported that Senior VP, Innovation & Gov. Wolfram Ridder received a grant of 18,665 restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Mercer common stock, or at the company’s election, the cash value.
The RSUs vest on January 1, 2029, subject to Ridder’s continued service with Mercer. Following this award, Ridder holds 18,665 RSUs, reflecting a compensation-related equity grant rather than an open-market purchase or sale.
BECK WOLFGANG reported acquisition or exercise transactions in this Form 4 filing.
Mercer International Inc. reported that Senior VP Global Wood Sourcing Wolfgang Beck received a grant of 12,967 restricted stock units (RSUs) on June 4, 2026. Each RSU represents a contingent right to one share of Mercer common stock, or the cash value, at the company’s election.
The RSUs vest on January 1, 2029, subject to Beck’s continued service with Mercer. Following this grant, he holds 12,967 RSUs directly, with each RSU linked to an equivalent number of underlying common shares.
Short Richard George reported acquisition or exercise transactions in this Form 4 filing.
Mercer International Inc. reported that its CFO and Secretary, Richard George Short, received a grant of 31,504 restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Mercer common stock, or the cash value, at the company’s election.
The RSUs vest on January 1, 2029, conditioned on Short’s continued service with Mercer through that date. Following this award, he holds 31,504 RSUs directly, reflecting a compensation-related equity grant rather than an open-market transaction.
ARGUIN GUY reported acquisition or exercise transactions in this Form 4 filing.
Mercer International Inc.'s Chief Human Resources Officer, Guy Arguin, received a grant of 13,612 restricted stock units. Each unit represents a contingent right to one share of Mercer common stock, or the cash value, at the company’s election.
The 13,612 restricted stock units vest on January 1, 2029, subject to Arguin’s continued service with Mercer. Following this grant, his reported derivative holdings consist of 13,612 restricted stock units tied to Mercer common stock.
STANNUS GENEVIEVE reported acquisition or exercise transactions in this Form 4 filing.
Mercer International Inc. reported that its VP and Treasurer, Genevieve Stannus, received a grant of 8,583 restricted stock units. Each unit represents a contingent right to receive one share of Mercer common stock or, at the company’s election, the cash value of a share.
The 8,583 restricted stock units vest on January 1, 2029, provided she continues serving the company through that date. Following this grant, she holds 8,583 restricted stock units directly, giving her potential future equity exposure tied to Mercer’s share performance once the units vest.
Heine Eric Xavier reported acquisition or exercise transactions in this Form 4 filing.
Mercer International Inc. reported that VP of Sales, Marketing & Logistics Eric Xavier Heine received a grant of restricted stock units. He was awarded 10,750 restricted stock units, each representing a right to receive one share of Mercer common stock or, at the company’s election, the cash value of a share.
The restricted stock units vest on January 1, 2029, provided Heine continues his service with Mercer through that date. Following this award, he holds 10,750 RSUs linked to Mercer common stock. This is a compensation-related grant, not an open-market share purchase or sale.
ALEKSON CYNTHIA MARGARET reported acquisition or exercise transactions in this Form 4 filing.
Mercer International Inc. vice president and controller Cynthia Margaret Alekson received a grant of 7,188 restricted stock units tied to Mercer common stock. This award is a form of equity-based compensation rather than an open‑market share purchase or sale.
Each restricted stock unit represents a contingent right to receive one share of Mercer common stock, or the cash value at the company’s election. The units will vest on January 1, 2029, provided she continues her service with Mercer through that date.
Merforth Carsten reported acquisition or exercise transactions in this Form 4 filing.
Mercer International Inc. reported that COO, Wood Products, Carsten Merforth received a grant of restricted stock units. He was awarded 26,764 restricted stock units, each representing a contingent right to receive one share of Mercer common stock or, at the company’s election, the cash value.
The restricted stock units vest on January 1, 2029, subject to his continued service with Mercer. Following this compensation-related award, Merforth holds 26,764 restricted stock units directly, and the filing shows no open-market purchases or sales associated with this Form 4.
Koppensteiner Adolf reported acquisition or exercise transactions in this Form 4 filing.
Mercer International Inc. reported that COO, Pulp Products, Adolf Koppensteiner received a grant of 30,505 restricted stock units. Each unit represents a right to receive one share of Mercer common stock, or cash of equal value, vesting on January 1, 2029 if he remains in service.
BUENO ESTRADA JUAN CARLOS reported acquisition or exercise transactions in this Form 4 filing.
Mercer International Inc. reported that CEO and President Juan Carlos Bueno Estrada received a grant of 126,808 restricted stock units. These units were awarded as equity-based compensation, not bought on the open market.
Each restricted stock unit represents the right to receive one share of Mercer common stock, or the cash value of a share at the company’s election. The units vest on January 1, 2029, assuming he continues his service with the company, and his reported direct holdings in this award total 126,808 units after the grant.
CORRICK THOMAS KEVIN reported acquisition or exercise transactions in this Form 4 filing.
Mercer International Inc. reported that director Thomas Kevin Corrick received a grant of 25,000 Deferred Stock Units (DSUs) under the company’s non-employee director compensation program and Amended and Restated 2022 Stock Incentive Plan. Following this award, Corrick holds 75,008 DSUs in total.
Each DSU represents one share of Mercer common stock plus dividend equivalents, vesting on the earlier of the one-year anniversary of the grant date or the 2027 annual general meeting. The DSUs are generally settled after Corrick ceases to be a director, unless he elects to defer further under the plan’s terms.
Rettig Rainer reported acquisition or exercise transactions in this Form 4 filing.
Mercer International director Rainer Rettig received a grant of 25,000 cash-settled deferred stock units (DSUs) as non-employee director compensation. Each DSU is tied to the fair market value of one Mercer common share and pays out in cash after he ceases to be a director, unless further deferred. The DSUs vest on the earlier of the one-year anniversary of the June 2026 grant or the 2027 annual general meeting, covering his board term starting June 1, 2026.
von Pentz Markwart reported acquisition or exercise transactions in this Form 4 filing.
Mercer International Inc. granted director Markwart von Pentz 25,000 Deferred Stock Units (DSUs) as part of its non-employee director compensation program under the Amended and Restated 2022 Stock Incentive Plan. Each DSU represents the right to receive one share of common stock and dividend equivalents after he ceases to be a director, unless further deferred.
The DSUs vest on the earlier of the one-year anniversary of the June 2, 2026 grant date or the 2027 annual general meeting. Following this grant, von Pentz holds 25,000 DSUs directly.
North Janine reported acquisition or exercise transactions in this Form 4 filing.
Mercer International Inc. director Janine North received a grant of 25,000 cash settled deferred stock units (DSUs) as part of the non-employee director compensation program for the board term starting on June 1, 2026 and ending at the 2027 annual general meeting (AGM).
Each DSU entitles her to a cash payment equal to the fair market value of one Mercer common share, plus dividend equivalents, payable after she ceases to be a director unless further deferred. These DSUs vest on the earlier of the one-year anniversary of the grant date or the 2027 AGM.
Following this award, North holds a total of 80,289.3 DSUs directly. This is a compensation-related equity award, not an open-market share purchase or sale.
Shepherd James reported acquisition or exercise transactions in this Form 4 filing.
Mercer International director James Shepherd received a grant of 25,000 shares of Common Stock as a restricted stock award. The award was granted under Mercer’s non-employee director compensation program and its Amended and Restated 2022 Stock Incentive Plan for the board term starting June 1, 2026 and running until the next annual general meeting in 2027. These shares vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 annual general meeting. After this grant, Shepherd directly holds 133,471 Mercer common shares. The transaction reflects stock-based compensation rather than an open-market purchase.
MCCARTNEY WILLIAM reported acquisition or exercise transactions in this Form 4 filing.
Mercer International Inc. reported that director William McCartney received a grant of 41,250 Deferred Stock Units (DSUs) as part of the non‑employee director compensation program under the Amended and Restated 2022 Stock Incentive Plan. Following this award, he holds 106,156 DSUs directly.
Each DSU represents the right to receive one share of Mercer common stock and related dividend equivalents after he ceases to be a director, unless further deferred. The DSUs vest on the earlier of the one‑year anniversary of the grant date or the company’s 2027 annual general meeting.
Laberge Alice reported acquisition or exercise transactions in this Form 4 filing.
MERCER INTERNATIONAL INC. reported that director Alice Laberge received a grant of 25,000 cash settled deferred stock units (DSUs) as part of the non-employee director compensation program for the board term starting June 1, 2026 and ending at the 2027 annual general meeting. Each DSU tracks the value of one share of common stock and pays cash, plus dividend equivalents, after she ceases to be a director unless further deferred. Following this grant, she holds 96,085 DSUs directly, which vest on the earlier of the one-year anniversary of the grant date or the 2027 annual general meeting.
WELTY LINDA J reported acquisition or exercise transactions in this Form 4 filing.
Mercer International Inc. director Linda J. Welty received a grant of 25,000 Deferred Stock Units (DSUs). These DSUs were issued under Mercer’s non-employee director compensation program and Amended and Restated 2022 Stock Incentive Plan for the board term starting June 1, 2026 and ending at the 2027 annual general meeting (AGM).
Each DSU represents the right to receive one share of Mercer common stock and related dividend equivalents after she ceases to be a director, unless further deferred. The DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM. Following this award, Welty directly holds 85,181 DSUs.
Mercer International’s ten percent owner Peter R. Kellogg, through entities including Harco, reported open-market purchases of 700,000 shares of common stock on May 15, 18 and 19, 2026 at prices around $0.95–$0.97 per share. Harco’s indirect holdings rose to 1,957,000 shares, and the filing also lists substantial additional direct and indirect holdings across various companies, trusts and a foundation associated with Kellogg.
Mercer International Inc. insider activity: Ten percent owner Peter R. Kellogg reported open-market purchases of Mercer International common stock through affiliated entities. Harco acquired 200,000 shares at $0.8811 per share on May 14, 2026 and 57,000 shares at $0.8773 per share on May 12, 2026, while E.G. Anderson Inc. acquired 43,000 shares at $0.8412 per share on May 12, 2026. Following these transactions, Harco held 1,257,000 shares indirectly, and Kellogg also reported substantial additional indirect and direct holdings across multiple entities.
Mercer International Inc. large shareholder Peter R. Kellogg reported an open-market purchase of 70,000 shares of common stock at $3.38 per share through the Peter and Cynthia Kellogg Foundation. That foundation now holds 1,000,000 shares, while Kellogg also reports additional direct and indirect holdings through various trusts, entities, and related parties.
Mercer International director Alice Laberge reported an open-market purchase of 1,000 shares of Mercer International common stock on February 25, 2026 at $1.90 per share. The shares are held indirectly through a Registered Retirement Savings Plan, which now holds 2,000 shares. Separately, Laberge reports direct ownership of 11,065 common shares.
Mercer International Inc. disclosed insider activity by a director in a Form 4. The report lists a series of open-market purchases of common stock (transaction code P) between 10/03/2025 and 11/13/2025, with each trade showing the number of shares bought and the price per share.
Many of the shares are held indirectly through a non-marital PRK trust, an entity identified as Harco, and through the director’s spouse, with post-transaction holdings including 1,318,540 shares via the non-marital PRK trust, 1,520,000 shares via Harco, and 2,300,000 shares held indirectly via the spouse. The report also shows 646,000 shares of common stock held directly following one of the reported purchases.