JATT Acquisition Corp
ZURA · Nasdaq
NO ACTION REQUIRED
Nothing left to do
The purchase completed and the shares became shares in the company it bought. There is no deadline left to miss.
Cash at settlement
No cash-per-share figure was filed for this vehicle before it finished.
Last close
Daily close
No price history on file yet — daily closes accumulate from the market data feed.
Trust settled · There is no line to draw here. This vehicle has finished: the cash was paid back or spent closing the deal, so the last filed figure describes an account that no longer exists and would be a floor under nothing.
SpacBrain’s read
Trust settled
The deal closed — SPAC shares became the target's shares, so there is no trust left to redeem (nobody missed a window; holders who wanted cash elected it at the vote).
In plain terms
- What it is
- A SPAC from Owl Creek Asset Management, L.P., listed on Nasdaq in July 2021.
- What it's doing now
- It agreed to buy Zura Bio Ltd, a clinical-stage biopharmaceutical development company. That purchase completed, and it stopped being a SPAC — the shares became shares in the business it bought.
- What you should know
- This SPAC has finished. The purchase completed, and the shares became shares in the company it bought — anyone who wanted the cash instead asked for it at the vote, so there is no cash left here to claim and no deadline left to miss.
At a glance
- Where it stands
- Closed (deSPAC)
- The business it bought
- Zura Bio Ltd — Bio Limited Zura is a clinical-stage biotechnology company advancing two primary assets, including ZB-168 in Alopecia Areata and other inflammatory diseases and torudokimab in both chronic obstructive pulmonary disease (COPD) and asthma.
- Industry
- Health Care — clinical-stage biopharmaceutical development
- Deal value
- not stated in the filings we hold
- Price vs cash at settlement
- no live price on file
- Cash in trust when it settled
- not yet extracted into a snapshot — the filings below may state it
- the last trust total filed while this was still a SPAC — the account has since been paid out or used to close the deal
- IPO
- 14 July 2021
- size not on file
- Headquarters
- 4225 EXECUTIVE SQUARE, LA JOLLA, CA, 92037
- registered in the Cayman Islands
- Lead underwriter
- not extracted from the prospectus yet
- Key officers
- Munshi Amit (Director) · Mathew Marlyn Teresa (VP, Principal Acctg. Officer) · Jarrett Jennifer (Director)
- Listed securities
- ZURA common
This vehicle has finished, so there is no window to file a cash-per-share figure for and none will follow. No estimate is shown in its place.
Nothing dated is on file. That is an absence in the record, not a statement that nothing is coming.
Yield to redemption
Nothing left to redeem — no yield to compute.
This SPAC has finished — its trust was paid back or used to close the deal, so there is nothing left to redeem and no yield to compute. A yield to redemption is a claim that you can hand these shares back for the trust cash. That account is closed, so this page will not print a number here.
What happened to the cash
The reasoning behind the verdict above, in the order the filings establish it.
- The deal closed — SPAC shares became the target's shares, so there is no trust left to redeem (nobody missed a window; holders who wanted cash elected it at the vote).
What has happened, and what is coming
1 dated milestoneEvery dated step from the day it listed to the next date you may have to act on. Where you have to do something, the day your broker needs the instruction is marked too.
- 14 July 2021IPOpassed
IPO size not on file
The deal
terms as filedWhat it is buying, on what terms, and how much of the combined company new shares take from you.
- closedHealth Care
What Zura Bio Ltd does — read from zurabio.com on 26 August 2026
Zura Bio is a biotechnology company developing novel medicines for serious immune system disorders, specifically focusing on dual-pathway biology to treat severe autoimmune and inflammatory conditions. Their pipeline includes tibulizumab (ZB-106), crebankitug (ZB-168), and torudokimab (ZB-880). The company is publicly traded on Nasdaq under the ticker ZURA.
BiotechnologyPharmaceuticalsAutoimmune DisordersInflammatory ConditionsDeal structureSEC-primary — BCA 8-K / S-4 / DEFM14A- PIPE
- ≈ $20M · unsourced
- Min-cash condition
- $65M
PIPE terms — instrument, coupon, conversion price and any reset floor — are not sourced for this deal. The size above is itself unsourced — a stored figure no filing we hold states — so neither the size nor the terms should be read as cited.
stated in:0001104659-22-093035
The score
deterministic, from filed fieldsZURA is not in the scored universe, so no score is shown. A withheld score is a fact about the record, not a verdict about the company.
The score is only published for names that carry both a price and a filed cash-per-share figure — 292 of the tracked fleet today. The rest keep an empty dial rather than a modelled one, and fill in by themselves as the fields land.
The company
from SEC filingsRead the full profile
JATT Acquisition Corp was a blank-check company whose common stock traded on the Nasdaq Stock Market under the ticker ZURA. The company priced its initial public offering on July 14, 2021, under SEC file number 333-257120, with shares registered for cash on S-1 filing 0001104659-21-081549 and priced pursuant to 424B prospectus 0001104659-21-092092. The registrant was assigned SEC CIK 0001855644 and SIC industry code 2836 (Biological Products, No Diagnostic Substances), and described itself as a blank-check company in that prospectus. On March 21, 2023, the ticker ZURA appeared on the cover page of 8-K filing 0001104659-23-034751. The vehicle completed a business combination and ceased filing as a blank-check entity, as established by 8-K 0001104659-23-036697 filed March 24, 2023, which reported a change in shell company status under Item 5.06. EDGAR now lists this CIK under the name Zura Bio Ltd.
Material findings
from the full read of every filingEvery document this company files gets read whole — body and exhibits. These are the ones the read flagged as material, newest first, each citing its filing.
The two dated readouts and the stated runway are the company's own expectations in an investor deck, not filed financial statements. The presentation is the source for the pipeline timing; the numbers behind the runway are not given in it.
The company has sufficient cash to fund operations through at least end of 2028, with key clinical catalysts upcoming: TibuSHIELD topline data expected Q4 2026 and TibuSURE data expected H1 2027. Share count increased to 95.4M Class A shares outstanding from 73.7M at YE 2025, reflecting significant equity issuance.
A company with 95.8 million shares outstanding states on its own cover pages that it has completed no clinical trials and has nothing approved — the entire value proposition is future financing and future data. The condensed consolidated financial statements are not in the portion read here.
The amended equity plan is the item with economic consequence: expanding an incentive plan authorises additional share issuance, which dilutes public shareholders who came in through the SPAC. The material terms are not restated in the 8-K itself and are incorporated from the April 30, 2026 proxy statement, so the size of the increase has to be read there. The rest of the meeting, an eight-director slate and auditor ratification, is routine.
Filing a director resignation as proxy material, rather than only as a current report, puts it in front of holders while a solicitation is live — that is what the DEFA14A wrapper is doing here. The filing itself carries no meeting date, no record date, no proposal and no vote threshold, and it names no successor or replacement nominee, so the composition of the board a holder is voting on must be read from the proxy statement as adjusted by this departure. Nothing in it bears on trust, redemption or a business-combination deadline.
The consent is the sting. A holder cannot tender without consenting to the Warrant Amendment, and that amendment would let the company require every warrant still outstanding after the offer closes to be exchanged at 0.27 shares — a ratio the filing itself describes as 10% less than the offer. Parties holding roughly 40.7% of the public warrants and 65.3% of the private placement warrants have already agreed to tender and consent, so only about a further 9.3% of the public warrants is needed to adopt it. The offer expires at 11:59 p.m. Eastern on August 8, 2024.
Show 10 more material filings
Tendering and consenting are bundled: a holder may not consent without tendering and may not tender without consenting. The Warrant Amendment would let Zura Bio require every warrant still outstanding after the offer to be exchanged at 0.27 shares, which the filing describes as a ratio 10% less than the offer. Holders of about 40.7% of the public warrants and 65.3% of the private placement warrants are already committed under a tender and support agreement, leaving roughly a further 9.3% of the public warrants to carry the amendment. The offer expires at 11:59 p.m. Eastern on August 8, 2024.
The structure runs through a holding company that does not yet exist: Holdco is to be established as a new holding company of Zura and to become a party to the agreement before the closing, and it is Holdco's shares — not Zura's — that are cancelled for New JATT Class A Ordinary Shares at the Exchange Ratio. Eight amendments to the registration statement and three amendments to the agreement in, the extraordinary general meeting is still set for a blank day in March 2023 at 10:00 a.m. Eastern Time, so no redemption deadline can be computed.
The registered amount of 16,053,700 ordinary shares is the ceiling on issuance and is settled at this version. The timing is not: the extraordinary general meeting is set for a blank day in March 2023 at 10:00 a.m. Eastern Time, and the physical location is given as the offices of Loeb & Loeb LLP in New York solely for the purposes of the existing memorandum and articles of association even though the meeting runs by live webcast. Options over Zura capital are exchanged for options over New JATT Class A Ordinary Shares at the Exchange Ratio.
Nothing a shareholder votes on changed, and the proxy statement/prospectus is not in this document — a reader looking here for the terms of the Zura Bio transaction will not find them. What the exhibit index does record is the pace of renegotiation: the Business Combination Agreement dated June 16, 2022 carries a First Amendment dated September 20, 2022, a Second Amendment dated November 14, 2022 and a Third Amendment dated January 13, 2023, the last first filed as an exhibit to a Form 8-K filed on January 19, 2023.
The registered amount of 16,053,700 ordinary shares is settled at this version, so a JATT shareholder can size the dilution five amendments in. The extraordinary general meeting is set for a blank day in March 2023 at 10:00 a.m. Eastern Time and conducted by live webcast, with the offices of Loeb & Loeb LLP in New York named as the physical location only to satisfy the existing memorandum and articles of association. Nothing in the document fixes a redemption deadline.
The registered amount moves in later amendments to this same registration statement, so 16,057,000 is this version's figure rather than a settled one. The business combination agreement had been amended twice by this point and was amended again afterwards. The extraordinary general meeting is set for a blank day in March 2023 at 10:00 a.m. Eastern Time, run by live webcast, with the offices of Loeb & Loeb LLP named as the physical location only to satisfy the existing memorandum and articles of association.
The registered amount of 16,057,000 ordinary shares is the ceiling on issuance at this version. Holdco's shares, not Zura's, are what get cancelled for New JATT Class A Ordinary Shares at the Exchange Ratio — and Holdco does not exist yet, being established and joined to the agreement only before the closing. The meeting line still prints the year 2022 while its date, time and location are all blank, so nothing in this version fixes a redemption deadline.
The sponsor's promote is indexed to redemptions: under the Sponsor Forfeiture Agreement it gives up between 1% and 70% of its private placement warrants — up to 4,137,000 of the 5,910,000 it bought for $5,910,000 at $1.00 each — depending on how many public shareholders redeem. Committed outside money is $50 million: a $20,000,000 PIPE for 2,000,000 shares at $10.00 and a $30,000,000 forward purchase by the Athanor funds for 3,000,000 shares. Assuming no redemptions, public holders take about 36.0%, Zura shareholders 41.9%, founders 9.0%, the FPA investors 7.9% and the PIPE investor 5.2%.
The sponsor's promote is indexed to redemptions in this version already: under the Sponsor Forfeiture Agreement it gives up between 1% and 70% of its private placement warrants, up to 4,137,000 of the 5,910,000 it bought for $5,910,000 at $1.00 each, depending on how many public shareholders redeem. Committed outside money is $50 million — a $20,000,000 PIPE for 2,000,000 shares at $10.00 and a $30,000,000 forward purchase by the Athanor funds for 3,000,000 shares. Assuming no redemptions, public holders take about 36.0%, Zura shareholders 41.9%, founders 9.0%, the FPA investors 7.9%.
Total consideration to Holdco securityholders is New JATT Class A Ordinary Shares, or options over them, with an aggregate value of $165 million: 16,057,000 JATT Class A Ordinary Shares plus 443,000 options issued in exchange for outstanding Holdco options. Each Holdco share is cancelled for a number of New JATT Class A Ordinary Shares equal to the Exchange Ratio, which this cover does not state as a number. Each JATT unit separates into one Class A ordinary share and one-half of a warrant, and the then-outstanding Class B ordinary shares convert automatically.
Filings
live EDGAR feedEverything this company has filed with the SEC recently, newest first, each with a plain summary of what changed and why it matters.
What changed: Exhibit 99.1 to an 8-K filed under JATT Acquisition Corp's CIK by Zura Bio: an August 2026 corporate overview presentation. It describes tibulizumab as a bispecific antibody inhibiting IL-17 and BAFF, with three programs — hidradenitis suppurativa, systemic sclerosis and polymyalgia rheumatica. The deck states topline data expected from the HS and SSc Phase 2 studies in Q4 2026 and H1 2027 respectively, and a cash runway through at least year end 2028. The disclaimer states Zura Bio has not completed any clinical trials and has no products approved for commercial sale. Why it matters: The two dated readouts and the stated runway are the company's own expectations in an investor deck, not filed financial statements. The presentation is the source for the pipeline timing; the numbers behind the runway are not given in it.
Show the other 10 filings
What changed: Zura Bio reported Q2 2026 results: cash of $205.1M as of June 30, 2026 (up from $109.4M at YE 2025), with enrollment complete in both Phase 2 tibulizumab studies (TibuSHIELD: 247 participants; TibuSURE: 91 participants) and a third indication (PMR) planned by year-end 2026. R&D expenses rose to $20.7M from $8.7M YoY, with a net loss of $26.3M ($0.21/share). Why it matters: The company has sufficient cash to fund operations through at least end of 2028, with key clinical catalysts upcoming: TibuSHIELD topline data expected Q4 2026 and TibuSURE data expected H1 2027. Share count increased to 95.4M Class A shares outstanding from 73.7M at YE 2025, reflecting significant equity issuance.
What changed: The 10-Q filed under Commission file number 001-40598 is that of Zura Bio Limited (Nasdaq: ZURA) for the quarter ended June 30, 2026, with 95,829,137 Class A ordinary shares outstanding as of August 11, 2026. Why it matters: A company with 95.8 million shares outstanding states on its own cover pages that it has completed no clinical trials and has nothing approved — the entire value proposition is future financing and future data. The condensed consolidated financial statements are not in the portion read here.
What changed: Zura Bio Ltd. (Nasdaq: ZURA), the JATT Acquisition Corp successor, furnished a corporate overview presentation dated July 2026. The captured text is the forward-looking statements disclaimer, identifying the topics the deck addresses: clinical development plans, the design, conduct, enrolment and timing of trials, expected milestones and data readouts, the safety, efficacy and commercial potential of product candidates, market opportunities, and cash resources and projected runway. Why it matters: The disclaimer inventory is itself informative for a clinical-stage de-SPAC: the deck addresses projected cash runway alongside trial timing, which are the two variables that determine whether former ZURA holders face a financing before the next readout. The substantive figures are in the slides rather than the captured text, so this summary cannot state the runway or the milestone dates — confidence is reduced accordingly and the exhibit itself should be consulted.
The sponsor
The people who set this company up, what they have done before, and the advisers around the deal.
Owl Creek Asset Management, L.P.named as sponsor in this SPAC’s filings — but with no researched track record behind it yet.
A missing score, not a score of zero — why
A Sponsor Score is only published once the sponsor’s prior vehicles have been verified on EDGAR and their post-close outcomes priced. That record does not exist for this sponsor yet, so no number and no tier is shown. That is a missing score, not a score of zero — and not a neutral 50 either.
Coverage so far: 301 of 1283 tracked SPACs (23%) are attached to a scored sponsor. This card fills in by itself as the research lands.
The record
The reference detail — how the shares were structured at listing, how thinly they trade, and where the company is registered.
Show the reference detail
Unit structure
from 424B3 0001104659-24-088949
Trading & liquidity
Company profile
Directors & officers
- Munshi AmitDirector
- Mathew Marlyn TeresaVP, Principal Acctg. Officer
- Jarrett JenniferDirector
- Thiara ParvinderDirector
- Schoch Steven JDirector
- Nirula AjayDirector
- Eisner MarkDirector
- Becker Daniel J.Director
Institutional holders
from SC 13G/13DFunds that have declared a stake above 5%. Heavy ownership by arbitrage funds usually means heavy cash-outs at the next vote.
Show the declared stakes
16 filers with a stake on file · 0 re-affirmed in the last 12 months. A stake with no amendment since is the filer’s last word on it, not proof it is still held — and percentages filed in different years are percentages of different floats, because this vehicle’s share count collapses at every redemption.
- Athanor Capital, LPwith 15 other reporting persons on the same schedule25.1% · SC 13G/ASep 23, 2024 stale
- Hana Immunotherapeutics LLCwith 1 other reporting person on the same schedule19.6% · SC 13GApr 5, 2023 stale
- JATT Ventures, L.P.with 1 other reporting person on the same schedule17.3% · SC 13D/AMar 28, 2023 stale
- Ewon Comfortech Co., Ltd.12.5% · SC 13GApr 13, 2023 stale
- PFIZER INC10.8% · SC 13GMar 30, 2023 stale
- Venrock Healthcare Capital Partners III, L.P.with 6 other reporting persons on the same schedule10.0% · SC 13G/ANov 14, 2024 stale
- ACCESS INDUSTRIES MANAGEMENT, LLCwith 3 other reporting persons on the same schedule9.9% · SC 13G/AFeb 14, 2024 stale
- Deep Track Capital, LPwith 2 other reporting persons on the same schedule9.3% · SC 13G/AApr 22, 2024 stale
- Magnetar Financial LLCwith 3 other reporting persons on the same schedule8.6% · SC 13G/AJan 25, 2024 stale
- SUVRETTA CAPITAL MANAGEMENT, LLCwith 2 other reporting persons on the same schedule7.6% · SC 13G/ANov 14, 2024 stale
- GREAT POINT PARTNERS LLCwith 3 other reporting persons on the same schedule7.6% · SC 13G/ANov 14, 2024 stale
- ADAR1 Capital Management, LLCwith 2 other reporting persons on the same schedule5.1% · SC 13GNov 14, 2024 stale
- RA CAPITAL MANAGEMENT, L.P.with 3 other reporting persons on the same schedule5.1% · SC 13GMay 2, 2024 stale
- Hudson Bay Capital Management LPwith 1 other reporting person on the same schedule0.8% · SC 13G/AFeb 6, 2024 stale
- GLAZER CAPITAL, LLCwith 1 other reporting person on the same schedule0.0% · SC 13G/AFeb 13, 2024 stale
- Alberta Investment Management Corp0.0% · SC 13G/AFeb 12, 2024 stale
One line per filer, not per reporting person: a joint schedule names the management company, its funds and often the individual who controls them, and all of them report the same shares. Click a name for that filer’s whole footprint across every SPAC it has declared a stake in.
News
company wires and the financial pressReporting we have matched to this ticker. Headlines belong to the outlets that wrote them.
Show the headlines
- Zura Bio Limited Announces Closing of Business Combination with JATT Acquisition Corp
Business Wireundated by the source
Sources on file
harvested pages, kept in fullEvery public page we have read about this company, stored in full so a source can never go missing.
Show the sources
36 full SEC filing texts archived — searchable, never lost.
- Vault note — ZURA (JATT Acquisition Corp)
vault-note · /vault/tickers/ZURA
- Vault deal note — Zura Bio Ltd (ZURA)
vault-note · /vault/deals/zura-bio-ltd
- Ihre Datenschutzeinstellungen
news · consent.yahoo.com
- Zura Bio | Developing novel medicines for serious immune system disorders
company-site · zurabio.com
In plain English
tap a term to open itEvery piece of jargon this page could have used, and what it actually means.
Open the plain-English guide
No floor / floorlessthe cash guarantee is gone — the price is unprotected
A SPAC's downside protection is not the cash in trust; it is your right to demand that cash. Once the redemption window closes, the cash stays with the company and the share can trade anywhere.
Redemption deadlinethe last day to hand shares back for cash
Set by the filing that calls the meeting. Tender after it and the company is under no obligation to pay you the trust value.
Broker action datethe day your broker needs the instruction — earlier than the official date
Brokers batch redemption instructions to the transfer agent, so the practical cutoff is roughly two business days before the published deadline. This is the date that actually costs people the floor.
Cash in trust / trust per sharethe cash the company is holding for each public share
Filed quarterly in the 10-Q's XBRL. It earns interest between filings, so the figure on a given day is slightly higher than the last filed one — where we show that we label it an estimate.
Trust discountbuying below the cash held for you
Only meaningful while a redemption right exists. On a floorless name the same arithmetic is not a discount, it is the market pricing distress, and this product will not call it a yield.
Dilutionhow much of the company new shares take from you
Sponsor promote, PIPE shares, warrants and rights all issue stock that did not pay $10 for it. The headline deal value is before that; the effective value is after.
Pro-forma equitywhat the company is valued at once the deal closes
The combined company's equity value assuming the announced terms and the redemptions that have actually happened.
ARShow much upside you get per unit of downside
SpacBrain's asymmetric-return score. It is deterministic — the same inputs always produce the same number — and it is capped, not zeroed, when the floor is gone.
De-SPACthe day the SPAC becomes the real company
The shares stop being a claim on a pot of cash and start being equity in an operating business. Roughly 80% of recent de-SPACs traded below $10 within a year.
Outside datethe contractual long-stop for closing the deal
A deadline between the SPAC and its target, not between the SPAC and you. It confers no right to cash, which is exactly why it must never be counted as a redemption window.
Accession numberthe SEC's unique id for one filing
Every figure on this page carries the accession of the filing that states it, so you can open the primary document rather than trust us.
Accreted NAV (estimate)the last filed cash figure, plus the interest it should have earned since
A model, not a filing: last filed value compounded at the 3-month T-bill for the days elapsed. Always shown in italic with the word estimate, and never printed beside a filed number without it.
Ask the brain
from its filingsData provenance & audit trail5 internal entries
Written by SpacBrain’s data agents whenever a figure is captured, corrected or flagged, and kept verbatim so every number on this page can be traced back to the filing that states it. This is a running log, not the current record: an early entry may be superseded by a later correction — the panels above always hold the current values.
admitted from EDGAR's QUARTERLY FORM INDEX, walked without any SIC filter. The SIC 6770 census could not reach this registrant: EDGAR reassigns a shell's SIC the day it stops being one, and this CIK now files under 2836 (Biological Products, (No Diagnostic Substances)). The screen found it by filing SHAPE instead — S-1 2021-06-15 → 8-A12B 2021-07-13 → 424B4 2021-07-14 — which nothing rewrites. Admission rule: src/lib/universe-admit.ts. SIC 2836 + self-described blank check in 424B4 0001104659-21-092092; 424B 0001104659-21-092092 priced 2021-07-14 under S-1 0001104659-21-081549 (file 333-257120, an offering for cash); common ticker ZURA off 8-K 0001104659-23-034751 (2023-03-21); lifecycle EXITED. The pricing prospectus was filed under SEC file number 333-257120, which belongs to S-1 0001104659-21-081549 (2021-06-15) — a registration of shares sold for CASH, which is what makes it an IPO rather than merger consideration. Blank-check status from the registrant's own first-person sentence in that prospectus (EDGAR full-text search, 424B4 2021-07-14). Ending PROVEN, not inferred: CLOSED per 8-K 0001104659-23-036697 (2023-03-24) — 8-K item 5.06 "Change in Shell Company Status" (EDGAR item index, items: 1.01,2.01,3.02,3.03,5.01,5.02,5.03,5.05,5.06,9.01). EDGAR now files this CIK as "Zura Bio Ltd" — the SPAC's own name is kept here and the successor is the target. ipoSizeM and deadline left NULL: gross-proceeds prose conflates the over-allotment with the offering, and a charter deadline belonging to a vehicle that has ended is a date nobody can act on. ipoDate is the 424B pricing date.
sponsor "Owl Creek Asset Management, L.P." (SEC CIK 0001313756) sourced from Form 3 reportingOwner (10% owner) acc 0000902664-23-000687.
[CLOSED-RENAME] EDGAR CIK 0001855644 records "JATT Acquisition Corp" ending 2023-03-21; the registrant continues as "Zura Bio Ltd". The rename is the SEC's own record of what the vehicle became, keyed by CIK. Closed 2023-03-21. No deal value is set — a rename says what was acquired, never for how much. No date column is set: Deal has announcedAt, voteDate and expectedCloseAt and nowhere to record an actual close, so the SEC's date is kept here until that column exists. [DEAL-STRUCTURE-MINED] pipeSizeM=20, minCashM=65 from primary filings (0001104659-22-093035).
pipeBasis set to UNSOURCED: the size came from the research seed / an earlier record and no filing we hold states it — surfaces now label it "unsourced"; an LLM re-read to FILED replaces this when credits allow
OTHER -> BIOTECH, on S-4/A 0001104659-23-024425: "We are a clinical-stage company with limited operating history."