Marcus TollerbyChief Strategy Officer
Portrait of Marcus Tollerby
Chief Strategy Officer

An introduction

Where a mutual can keep its promises


I help a member-owned insurer decide where it can keep writing through the hail season, and what each retreat costs the people it was formed to serve.

United States

Open to Board appointments

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My approach

A mutual insurer has no shareholders to absorb a poor decision. Its members pay for it twice: as owners whose surplus falls and as customers whose cover changes. I want every strategic choice to name both costs before the board makes it, and to say plainly which members will be disappointed.

Direct written premium
US$560M
2025, across six states
Policyholders' surplus
US$430M
December 2025, including a US$60M surplus note
Independent agencies
1,050
The company's only distribution channel

Work worth discussing.

01Withdrawing homeowners cover from seven Colorado counties while keeping the farm book

Ostervale entered Colorado in 2012, mainly through farm agencies on the eastern plains. By 2022 homeowners business in seven Front Range counties made up most of the state's 21,400 homeowners policies and US$46 million of premium. Hail had produced a five-year loss ratio of 91 per cent in that book before expenses, and our actuaries indicated a 41 per cent increase. A smaller increase approved the previous year had already cost us some of the better-maintained homes.

The stakes were concentrated. That book produced less than nine per cent of our premium but contributed US$64 million to our modelled one-in-100-year convective-storm loss.

In early 2023 I took three paths to the board: a three-year repricing with roof-age payment schedules, full withdrawal from Colorado, or a county-level withdrawal that kept farmowners and eastern homeowners. Our chief underwriting officer favoured repricing, believing the market would follow us upward. Two directors questioned whether a mutual should leave members at all. I supported the county option, because repricing would have taken at least three years to earn through while the exposure stayed on our balance sheet.

Non-renewals ran from March 2024 to August 2025, with notice longer than the state minimum. Each affected agency received its list eight months ahead. We briefed the state regulator before the first notice went out.

We removed 13,800 policies and US$29 million of premium. The modelled one-in-100 loss fell from US$212 million to US$176 million, and the 2024 reinsurance renewal cost US$3.1 million less than a like-for-like quote. Our expense ratio rose 0.6 points as fixed costs spread across less premium, and one agency moved a US$2.4 million farm book to a competitor. The board now reviews every state against written criteria each autumn. I would test the roof-age schedule in one county for a full season before deciding; that result might have moved the boundary we drew.

02Accepting a higher catastrophe retention and dropping the aggregate cover in 2023

Our January 2023 catastrophe renewal arrived in the hardest property reinsurance market I had seen. The expiring programme retained US$30 million per storm, covered losses up to US$260 million and included an aggregate cover that responded after US$90 million of annual catastrophe losses. Reinsurers proposed a US$40 million retention, a risk-adjusted per-occurrence price 37 per cent higher, and an aggregate cover at a higher attachment costing US$14 million, more than double the expiring premium.

Surplus stood at US$402 million. A second weak year behind a thinner programme could pressure our financial-strength rating, on which several agencies rely.

The chief financial officer wanted to buy the aggregate at the quoted price, since frequent mid-sized storms had hurt us most. My modelling put its expected recovery near US$6 million, less than half its cost. I recommended accepting the US$40 million retention, keeping the full per-occurrence limit and dropping the aggregate, while committing the saving to roof-age and deductible changes. The risk committee chair asked us to record which surplus level would reopen the decision. We set it at US$340 million.

We bought the programme without the aggregate, filed deductible changes in all six states and reported retained catastrophe losses to the finance and risk committee every month through the storm season.

The season was severe. Retained catastrophe losses reached US$148 million, and the dropped aggregate would have recovered US$22 million, US$8 million more than it cost. Surplus fell to US$356 million, above the trigger, but only just. In 2024 and 2025, as milder seasons arrived and rate and deductible actions earned through, the combined ratio improved to 103.1 and then 98.6 per cent. The board now approves a three-year reinsurance strategy with explicit surplus triggers rather than a single-year purchase.

I presented the expected value more confidently than its uncertainty deserved. Next time I would show directors the particular seasons in which the cover pays, not only its long-run average.

03Issuing a surplus note instead of reorganising or affiliating with a larger mutual

After 2023 the board asked management to restore surplus above US$400 million within two years without relying on a mild season. Two proposals arrived in early 2024. A larger mutual insurer from another region offered an affiliation with shared reinsurance and services, and some directors wanted to study a mutual holding company reorganisation that could eventually allow outside equity.

Each route would change who controlled Ostervale's future. Agents and members had been told for decades that decisions were made in Salina by a board the members elected.

Our chief executive initially preferred the affiliation, which promised about US$5 million a year of reinsurance and service savings. I argued that those savings depended on pooling terms not yet agreed, and that a reorganisation addressed a long-term equity need we did not have. I recommended a US$60 million surplus note, placed privately at 7.6 per cent, with every payment of interest or principal subject to the prior approval of our domiciliary regulator. The note ranks behind policyholder claims and counts towards statutory surplus. The board accepted the recommendation and closed the affiliation discussion, which disappointed two directors and the other mutual's leadership.

We worked with outside counsel and the state insurance department in Kansas on the note terms, prepared a ten-year repayment plan and explained the decision to our agency advisory council before any announcement.

The note closed in June 2024. Surplus reached US$398 million at the end of 2024 and US$430 million at the end of 2025, helped by the note, two better seasons and the earlier underwriting actions. Interest costs about US$4.6 million a year, and whatever the affiliation might have saved was given up. The board adopted a written capital policy with a surplus range and named actions at each boundary.

I would commission an independent review of the affiliation terms before management formed any preference. Our analysis was careful, but it was ours, and the directors who favoured affiliation deserved advice that neither side had shaped.

I help a policyholder-owned insurer decide where it can still keep its promises through a hail season, and I make the cost of every retreat visible to the members who bear it.

I am chief strategy officer of Ostervale Mutual Insurance Company, a policyholder-owned property and casualty insurer based in Salina, Kansas. We write farm, rural homeowners, auto, crop-hail and agribusiness cover in six states, entirely through about 1,050 independent agencies. Direct written premium was US$560 million in 2025, and policyholders' surplus stood at US$430 million at the year end. I report to the chief executive and lead sixteen colleagues across strategic planning, catastrophe analytics, state economics and distribution strategy. Our chief financial officer places and signs the reinsurance; I co-design the programme and present its options.

My first job, in July 1997, was inspecting hail-damaged roofs for an independent adjusting firm in Wichita. Two houses on one street could produce very different claims, depending on how old each roof was and how each policy was worded.I later priced personal lines for a stock insurer, then spent more than eleven years at a reinsurance intermediary modelling storm exposure for regional carriers. Ostervale was one of those clients. I joined it in September 2016 because I wanted to carry the consequences of a recommendation rather than hand it over.

Severe convective storms, the hail, straight-line wind and tornadoes that cross the Plains each spring and summer, now shape almost every strategic question we face. They decide which counties we can serve at an adequate rate, how much volatility our surplus can absorb and what reinsurance costs. A mutual cannot raise money by selling shares after a bad year, and its members are its owners and its customers at once. I therefore try to show the board who gains and who gives something up in each choice, before that choice is made.

Front Range homeowners, withdrawn county by county

We stopped renewing 13,800 homeowners policies in seven Colorado counties during 2024 and 2025, removing US$29 million of premium. Farmowners and eastern Colorado homes stayed. Our modelled one-in-100-year convective-storm loss fell by US$36 million.

A higher retention, chosen with its cost on the record

At the January 2023 renewal we accepted a US$40 million catastrophe retention and dropped an aggregate cover priced at more than twice its modelled recovery. That season the cover would have paid US$22 million against a US$14 million price.

New capital without a change of ownership

In 2024 the board set aside a mutual holding company reorganisation and a proposed affiliation, issuing a US$60 million surplus note instead. Its interest costs about US$4.6 million a year, and each payment needs our domiciliary regulator's prior approval.

Current focus

I am rebuilding our state portfolio review around roof age, deductible structure and agency concentration, so that the next repricing or withdrawal decision rests on evidence gathered before a storm season rather than reconstructed after one.

Conversations I welcome

I am seeking a first independent board seat, most likely on a risk or audit committee, at a mutual, cooperative or smaller listed company whose results depend on weather, agriculture or concentrated physical risk. I can offer twenty-two days a year, subject to Ostervale's consent and a review of conflicts.

The leadership record

Trusted with consequential decisions.

Formation

  • Bachelor of arts in economicsHarlanby College · 1997
  • MS, applied statistics, completed part-timeColdrennan University · 2004
Marcus brings the board three options and tells us which members each one will disappoint. When we argued about Colorado he did not soften the cost to the people we were leaving, and that is why the directors who voted against him still trusted the paper.
Ruth EllingsrudChair of the board, Ostervale Mutual Insurance Company
The full record ↗

Contact

I am seeking a first independent board seat, most likely on a risk or audit committee, at a mutual, cooperative or smaller listed company whose results depend on weather, agriculture or concentrated physical risk. I can offer twenty-two days a year, subject to Ostervale's consent and a review of conflicts.

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