BlockFills
Backed by Susquehanna, it froze withdrawals and filed for Chapter 11 in 2026
A Chicago-based crypto trading and lending firm for institutions, offering OTC and electronic trading, derivatives, collateralised loans and bitcoin mining services.
- Recorded announced backing
- Estimated
Recorded announced backing; this is separate from cash received, customer deposits and money recovered.
Funding
| Round | Date | Announced | Investors |
|---|---|---|---|
| Pre-Series A | 2021 | Not disclosed | |
| Series A | 2022 |
|
Announced is what was said at the time. Cash actually received is rarely disclosed and is not assumed to match.
People
| Name | Role | Period | Now | Last checked |
|---|---|---|---|---|
| Nicholas Hammer | Unknown – Jul 2025 | Strategic Advisor, TPAC Capital (since June 2026) | Oct 2026 | |
| Joseph Perry | Jul 2025 – end | Unknown | — |
Timeline
19 January 2022
The company said it would expand services for asset managers and hedge funds; the later bankruptcy filings say the proceeds were meant for bitcoin mining hardware.
July 2025
An interim chief executive took over.
11 February 2026
15 March 2026
How it ended
BlockFills suspended client deposits and withdrawals in February 2026, citing market and financial conditions, while clients could still open and close positions. On 15 March 2026 its parent, Reliz Technology Group Holdings, and three affiliates filed for Chapter 11 in Delaware, estimating $50–100 million in assets against $100–500 million in liabilities. The company said the filing was the most responsible path to preserve value and maximise recoveries.
What happened next
- Asset sale13 July 2026
Debtors' counsel said a court-supervised sale bought substantially all of BlockFills' assets and that the bankruptcy judge confirmed the Chapter 11 plan on 13 July 2026. The buyer was not named in the sources retrieved.
Still alive
Open spot
BlockFills is gone. Is your crypto lender still running?
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Sources
9 sources behind this page.
- 1BlockFills' Statement on Important Company Updates and Chapter 11 Bankruptcy Filing: 03/15/2026 · BlockFills (company website, retrieved after the filing) · Mar 2026
- 2Crypto financial firm BlockFills files for Chapter 11 bankruptcy · Blockspace (syndicated on Yahoo Finance) · Mar 2026
- 3BlockFills Parent Files Chapter 11 in Delaware, Proposes Customer-Led Reorganization into NewCo · Chapter11Cases (Stretto), summary of the first-day filings · Mar 2026
- 4Blockfills co-founder and CEO Nicholas Hammer has stepped down · CoinDesk · Feb 2026
- 5Susquehanna-backed Blockfills up for sale after $75 million lending loss · CoinDesk · Feb 2026
- 6Trading Technology Provider BlockFills Raises $37M for Expansion · CoinDesk · Jan 2022
- 7From $61B Volume to Chapter 11: BlockFills Falls Amid Ongoing Crypto Downturn · Disruption Banking · Mar 2026
- 8LinkedIn profile of Nicholas Hammer · LinkedIn (self-published profile, viewed by a person) · user-editable
- 9McDermott secures record-fast Chapter 11 confirmation for BlockFills · McDermott Will & Schulte (debtors' counsel, press release) · Jul 2026
Every figure above is clickable and opens the sources behind it. Copies were stored when each source was read, so a citation still resolves after the page it came from is gone.