Hilbert took the fast bridge. The next investor would have to explain it.

Most founders treat a bridge as a runway problem: set a discount, take the cash, hit milestones. The evidence in public documents and practitioner guidance points to a different failure mode. In 2025-2026, bridges derail because they create underwriteability problems for the next lead investor. It is not just about the price. It is about whether the bridge’s mechanics and signalling create messy ownership maths, hidden dilution or enforcement-style protections that the next lead must either clean up or walk away from. ‘Clean’ bridges win because they make the next lead’s story simple.

On 5 November 2025, Hilbert Group AB (publ) went to the market with a lifeline.

Hilbert is a Stockholm-listed company. It had agreed a strategic financing facility with Helena Partners, acting through Helena Global Investment Opportunities 1 Ltd, the counterparty named in the Nasdaq announcement.

The facility was up to USD 10m committed.

But the first draw was not a single, simple instrument.

It was a bundle: 46,820 convertible notes at SEK 1,000 each, plus 624,266 warrants, plus a share issue.

If you have ever raised money with the clock ticking, you can feel why this happens.

Committed capital is oxygen.

Yet that same bundle sets a trap for the person who comes after.

Not for Hilbert’s management. For the next lead investor.

They will inherit the structure. Then they will have to explain it.

Hilbert’s 2025 facility stacked convertibles, warrants and shares, illustrating how a ‘fast’ bridge can add underwriting complexity. Photo: Bart Ros / Pexels, Pexels licence (free commercial use).

The question founders forget to ask

Founders usually ask: what discount can we tolerate?

Or: how many months does this buy us?

A new lead investor asks something colder.

What will my investment committee hate seeing in the cap table?

That is not cynicism. It is workflow.

A lead investor is not only buying shares. They are selling a story inside their fund.

How much will we own?

What happens at different next-round prices?

Are there rights or dilution hiding in footnotes?

If the answers take ten slides, the deal slows.

Not because the business is broken.

Because the memo is.

The comforting belief that breaks bridges

Most people think bridge rounds live or die on price and runway.

Get enough cash. Avoid an ugly discount. Keep building.

Then the next priced Series A or B is mainly a function of progress and market mood.

It is a tidy story.

It is also missing the part that later investors actually have to underwrite.

Here is the twist: a bridge is architecture, not just cash

JPMorgan’s founder guidance makes an unglamorous point that matters more than founders want it to.

Convertible notes are cap table architecture. In plain English: they reshape who owns what, later.

And complexity compounds when multiple notes or SAFEs stack with different caps, discounts and MFN clauses.

MFN means “most-favoured nation”. In normal language: if you later give someone better terms, earlier investors get them too.

Warrants are options to buy shares later, usually at a set price.

None of this is automatically evil.

The twist is simpler.

A bridge does not fail only when the company fails.

It can fail when the next lead cannot tell a clean ownership story without sponsoring a clean-up.

That is what the brief means by an “IC memo liability”.

Not a scandal.

A document that has to survive sceptical questions.

Hilbert’s choice: speed, with an instrument stack attached

Hilbert’s announcement shows a decision founders make under pressure.

Take a structured facility that stacks instruments.

Convertible notes plus warrants plus shares.

The disclosure does not prove what happened next. We do not have that outcome in the brief.

But the structure itself tells you what the next lead must do.

They must model multiple paths to dilution.

They must explain how warrants change ownership at different prices.

They must explain why the bundle does not amount to hidden repricing in practice.

Even if the company is performing, the structure becomes part of the pitch.

That is the cost of fast money.

Helena Partners’ facility with Hilbert shows how structured bridge capital can bundle multiple instruments in one package. Photo: Christina & Peter / Pexels, Pexels licence (free commercial use).

Ortelius and the word that changes the tone: “collateral”

Ortelius International AB, a Swedish company, disclosed a SEK 20.8m convertible bond facility with Loft Structured Opportunities Fund I.

It included warrants.

Then came the clause that makes later equity investors sit up.

To secure obligations, Ortelius issued 30,000,000 “Collateral Shares” to the investor at quota value, according to MFN.se.

It also described warrant economics per tranche corresponding to 25% of the nominal tranche amount.

This kind of package can be attractive when you need certainty.

But “collateral shares” are not just paperwork.

They are enforcement logic entering a cap table.

A future equity lead now has to answer questions that have nothing to do with customers.

What happens if there is enforcement?

How do collateral shares interact with a new priced round?

Who really controls what in a downside scenario?

That is diligence friction. And it was installed by the bridge.

Ortelius’ collateral shares and warrant economics show how enforcement-style protections can create a future equity overhang. Photo: Abhishek Navlakha / Pexels, Pexels licence (free commercial use).

The UK disclosure that shows how bridges become price anchors

A UK public market RNS titled “Issue of CLNs / Further investment in Sentiance” described raising £2m via a convertible loan note.

It disclosed a stated conversion price, and timing for an additional tranche and other rights.

That is the quiet power of public terms.

They create an explicit reference point.

A future lead does not have to guess what earlier money implied.

It is written down.

Sometimes that clarity helps.

Sometimes it narrows the room for manoeuvre.

If you price above the stated conversion price, you risk looking like you ignored a public anchor.

If you price below it, you risk conflict over who gets diluted and how.

Either way, the bridge is no longer just runway.

It is negotiation gravity.

Sonder: when a bridge reads like downside-protection capital

On 5 August 2025, Sonder Holdings Inc., a US company, entered a Note and Warrant Purchase Agreement.

It issued $24.54m of units. Each unit included a senior secured promissory note plus a warrant.

Some purchasers were existing Series A holders, according to a filing with the US Securities and Exchange Commission.

This is the same mechanical drift you saw in Sweden.

A note.

A warrant.

And “senior secured”, meaning the lender sits above others and has security.

Those features may be rational for the capital provider.

But they also change the underwriting posture for a later equity lead.

A lead now has to explain seniority, security, and the extra dilution from warrants.

Not just growth.

That is how structure steals airtime from the product.

Time is not neutral: the 18-month overhang

Nucleus Advisors, writing about bridge rounds in India, flags a pattern founders recognise too late.

When the bridge window stretches to 18+ months, the bridge becomes a cap-table overhang rather than a short milestone bridge.

Notice what that does.

It changes the meaning of the instrument.

A bridge is meant to connect to a specific next round.

When it runs long, it starts to look like a semi-permanent layer sitting above the future.

Even if the business is improving, the bridge begins to feel like part of the problem to solve.

A Swedish echo from 2017

If warrant-heavy bridges feel like a new disease, they are not.

In 2017, CybAero disclosed an agreement with Bracknor for up to USD 5.25 million.

The bridge loan involved convertibles issued together with a warrant package equal to 30% of the nominal value of each convertible loan, according to Cision.

Different decade.

Same instinct.

When capital tightens, protection gets bolted on.

And the dilution stack grows a second shadow.

The world tour in one breath

In Sweden’s public microcap and PIPE-style market, the brief’s examples show how quickly convertibles, warrants and collateral mechanisms can appear in one package.

In the UK and US, disclosure regimes make it easy to see a similar move towards “units”: a note plus a warrant, sometimes with senior secured positioning.

In India, advisory commentary focuses on duration: bridges that run too long become an overhang.

Different places.

Same underlying conflict.

Bridge providers want protection.

Founders want speed.

The next lead wants a simple underwriting story.

Only one of those parties is not in the room when the bridge is signed.

The next lead.

The dinner-table rule

A bridge works when a stranger can underwrite it.

Not when the insiders understand it.

When a new lead can look at the cap table and say:

We can hit our ownership target.

We can explain dilution in a clean way.

We are not inheriting hidden repricing.

We are not being pushed into an unwanted recap.

That is why “clean” bridges win.

Not because they are nicer.

Because they keep the memo short.

When the opposite is true

Sometimes structured money is the only money available.

The brief does not give outcomes proving that any one of these companies failed or succeeded because of warrants or collateral shares.

So the fair claim is narrower.

Public documents and practitioner guidance show that layered rights and stacked instruments increase complexity.

And complexity is a direct deterrent to new institutional capital in that guidance.

If the alternative is shutting down, many teams will accept a structured bridge.

They should just treat it as a trade, not a free lunch.

What operators should do next week

Size the bridge to one fundable milestone

Write the milestone in one sentence.

Make it something a new lead can underwrite.

Then size the bridge to that window, not to hope.

Fight for one conversion path

Aim for one main instrument.

Avoid stacking convertibles plus warrants plus side share issues unless you have to.

The goal is not elegance.

It is predictable ownership maths.

Treat MFN as future leverage

MFN can feel like fairness.

It can also make every future term feel like it triggers something else.

Narrow it, or avoid it where possible.

Be cautious with warrants and seniority

Warrants can read like hidden dilution to a future lead.

Senior secured positioning can change the whole tone of the company’s story.

If you want a feel for how terms, not headline valuation, can dictate what happens next, the logic rhymes with The term sheet that lets you keep shares, then stops you buying machines.

What investors are really doing in 2025-2026

Investors are not allergic to bridges.

They are wary of inheriting someone else’s protection package.

A lead investor walks into an investment committee with three quiet questions:

Can we hit our ownership target without ugly surprises?

Will we inherit conflict over conversion maths and who got what?

Are we about to sponsor a clean-up that distracts management?

That is why practitioners talk about architecture.

It is also why stacked notes and layered rights can become a deal issue even when fundamentals improve.

If you want to understand the moment investors shift from interest to commitment, the psychology is laid out in The Signals That Move Investors From Interest to Commitment.

Where GI Network fits in a real bridge

GI Network would treat a bridge as an underwriting rehearsal for the next priced round.

We would map every existing instrument, stress-test conversion outcomes across plausible next-round prices, and flag the clauses most likely to trigger investment committee objections. Then we would help structure a single coherent bridge mechanic tied to a specific milestone, and prepare the narrative and data room so a new lead can underwrite ownership and governance without needing to propose a recap.

GI Network’s view: A bridge is successful when the next lead can model it quickly and defend it simply.

The Fundability-First Bridge Checklist

Use one question: will a stranger be able to underwrite this?

Then run five tests.

1) The Milestone Test

Can you state the one fundable milestone the bridge buys, in one sentence?

2) The Single-Path Test

Is there one clear conversion mechanic, rather than stacked instruments?

3) The Hidden Dilution Test

Do warrants or similar add-ons create dilution a new lead will struggle to price?

4) The Priority Test

Have you introduced senior secured or collateral-style features that change the story?

5) The Time Test

Does the plan stay inside a short window, rather than drifting towards an 18+ month overhang?

Fail two or more, and you do not just have a bridge.

You have a future fundraising fight, pre-installed.