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Activist group in Seer (SEER) reports 7.6% stake and opposes NOL pill

Filing Impact
(Moderate)
Filing Sentiment
(Neutral)
Form Type
SCHEDULE 13D/A

Rhea-AI Filing Summary

Seer, Inc. investors led by Bradley Radoff and Michael Torok have updated their Schedule 13D to detail a significant activist stake and challenge a new tax benefits preservation plan. The group now reports beneficial ownership of 4,277,528 Class A shares, representing approximately 7.6% of Seer’s 56,219,599 shares outstanding as of December 31, 2025.

The filing breaks out ownership across several entities. Bradley Radoff is deemed to beneficially own 2,610,232 shares, or about 4.6% of the company, including 500,000 shares held by the Radoff Family Foundation. Michael Torok is deemed to beneficially own 1,667,296 shares, or about 3.0%, including shares held through JEC II Associates, LLC and The MOS Trust.

The investors express strong concern with the board’s adoption of a tax benefits preservation plan on February 26, 2026, which limits additional ownership to 4.9%. They argue this measure may discourage shareholders from building larger positions in advance of any potential proxy contest and call on the board to justify the plan’s necessity and impact on stockholder rights.

Positive

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Insights

Activist group discloses 7.6% stake and openly challenges Seer’s NOL pill.

This amendment shows an organized investor group, led by Bradley Radoff and Michael Torok, controlling about 7.6% of Seer, Inc.. The filing details positions across foundations, LLCs and trusts, clarifying who effectively controls 4,277,528 Class A shares.

The group objects to a tax benefits preservation plan adopted on February 26, 2026, which restricts holders from crossing a 4.9% ownership threshold. They frame this as a potential impediment to shareholders accumulating influence ahead of any proxy contest, and formally request the board to substantiate its tax rationale.

From an investor’s perspective, this sets the stage for possible governance disputes between the board and a sizable activist bloc. Subsequent company communications and future Schedule 13D updates will determine whether this tension evolves into a full proxy campaign or negotiated changes to Seer’s governance or capital structure.






BRADLEY L. RADOFF
2727 Kirby Drive, Unit 29L,
Houston, TX, 77098
713-482-2196


MICHAEL TOROK
68 Mazzeo Drive,
Randolph, MA, 02368
617-680-6709


RYAN NEBEL
OLSHAN FROME WOLOSKY LLP, 1325 Avenue of the Americas
New York, NY, 10019
212-451-2300

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)
02/26/2026

(Date of Event Which Requires Filing of This Statement)


If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D


Radoff Family Foundation
Signature:/s/ Bradley L. Radoff
Name/Title:Bradley L. Radoff, Director
Date:03/02/2026
Radoff Bradley Louis
Signature:/s/ Bradley L. Radoff
Name/Title:Bradley L. Radoff
Date:03/02/2026
JEC II Associates, LLC
Signature:/s/ Michael Torok
Name/Title:Michael Torok, Manager
Date:03/02/2026
The MOS Trust
Signature:/s/ Michael Torok
Name/Title:Michael Torok, Manager of MOS PTC, LLC, its Trustee
Date:03/02/2026
MOS PTC, LLC
Signature:/s/ Michael Torok
Name/Title:Michael Torok, Manager
Date:03/02/2026
Torok Michael
Signature:/s/ Michael Torok
Name/Title:Michael Torok
Date:03/02/2026

FAQ

How much of Seer (SEER) stock does the Radoff–Torok group report owning?

The investor group reports beneficial ownership of 4,277,528 Seer Class A shares, about 7.6% of 56,219,599 shares outstanding. This total includes stakes held by Bradley Radoff, Michael Torok, the Radoff Family Foundation, JEC II Associates, The MOS Trust and MOS PTC.

What is Bradley Radoff’s individual beneficial ownership in Seer (SEER)?

Bradley Radoff is deemed to beneficially own 2,610,232 Seer Class A shares, representing approximately 4.6% of shares outstanding. This figure combines 2,110,232 shares he holds directly with 500,000 shares held by the Radoff Family Foundation, where he serves as a director.

What Seer (SEER) share stake is attributed to Michael Torok in this Schedule 13D/A?

Michael Torok is deemed to beneficially own 1,667,296 Seer Class A shares, or roughly 3.0% of the outstanding stock. This includes 285,000 shares he holds directly plus shares held through JEC II Associates, LLC and The MOS Trust, where he has managerial roles.

Why are Seer (SEER) activists criticizing the tax benefits preservation plan?

The investors criticize Seer’s tax benefits preservation plan adopted February 26, 2026 because it restricts shareholders from acquiring 4.9% or more. They argue this limitation may discourage larger ownership stakes ahead of any potential proxy contest and request detailed justification from the board.

What purchase amounts did the Seer (SEER) investor group disclose for their shares?

The group disclosed approximate aggregate purchase prices: $970,645 for 500,000 shares held by the Radoff Foundation, $4,091,665 for 2,110,232 shares held by Bradley Radoff, $2,226,405 for 1,167,296 JEC II shares, $420,140 for 215,000 MOS Trust shares, and $654,853 for 285,000 shares held by Michael Torok.

What share count did the Seer (SEER) filing use to calculate ownership percentages?

The filing calculates ownership percentages using 56,219,599 Seer Class A shares outstanding as of December 31, 2025. This share count comes from Exhibit 99.1 to Seer’s Current Report on Form 8-K filed with the Securities and Exchange Commission on February 26, 2026.
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