Tourmaline Bio, Inc.
Tourmaline Bio, Inc. is a Private limited company (Ltd.) registered in United States under 6587568, and its current status with New York Department of State — Division of Corporations is active. The company was incorporated on 12 September 2022 and lists its registered address as ALBANY, United States. 5 shareholders are on record for Tourmaline Bio, Inc., and since every one of them is a company rather than an individual, this particular filing does not on its own establish an ultimate beneficial owner (UBO) — identifying one would mean tracing the ownership of each shareholding company in turn. This profile is sourced directly from New York Department of State — Division of Corporations and was last updated on 21 October 2026.
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Shareholders
5
Five shareholders are currently on record for Tourmaline Bio, Inc., reflecting the stock ledger kept by the company under state corporate law (e.g. §219 of the Delaware General Corporation Law) rather than a public filing.
The largest of these is VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund, holding 4.2% — the largest recorded stake — followed by iShares Trust-iShares Russell 2000 ETF at 2.4%; the remaining 3 shareholders shown hold smaller stakes.
The register reports 10 shareholders in total, though only the top 5 by holding are shown in this view.
Because every shareholder shown is a company rather than an individual, the ownership chain continues above this level, and no beneficial owner can be established from this filing alone.
| Shareholder | Type | Holding | Source Document |
|---|---|---|---|
| VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund | 4.2% | New York Department of State — Division of Corporations | |
| iShares Trust-iShares Russell 2000 ETF | 2.4% | New York Department of State — Division of Corporations | |
| VANGUARD INDEX FUNDS-Vanguard Extended Market Index Fund | 1.7% | New York Department of State — Division of Corporations | |
| Fidelity Salem Street Trust-Fidelity Small Cap Index Fund | 1.1% | New York Department of State — Division of Corporations | |
| iShares Trust-iShares Russell 2000 Value ETF | 0.9% | New York Department of State — Division of Corporations |
Officers
5
The Cfo & Treasurer of Tourmaline Bio, Inc. currently on record is Ryan Robinson Cpa; five officers are currently on record for Tourmaline Bio, Inc., filed with New York Department of State — Division of Corporations.
The register reports 14 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Management authority at Tourmaline Bio, Inc. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
The source filing doesn't specify representation authority — whether officers can act individually or must sign jointly to bind the company — so that detail isn't available here.
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Frequently Asked Questions
Who owns Tourmaline Bio, Inc.?
Five shareholders are currently on record for Tourmaline Bio, Inc., reflecting the stock ledger kept by the company under state corporate law (e.g. §219 of the Delaware General Corporation Law) rather than a public filing. The largest of these is VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund, holding 4.2% — the largest recorded stake — followed by iShares Trust-iShares Russell 2000 ETF at 2.4%; the remaining 3 shareholders shown hold smaller stakes. Because every shareholder shown is a company rather than an individual, the ownership chain continues above this level, and no beneficial owner can be established from this filing alone.
Who is Tourmaline Bio, Inc.'s UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for Tourmaline Bio, Inc. is itself a company rather than a natural person, so no Ultimate Beneficial Owner (UBO) is identified at this level; establishing one would require tracing the ownership of each shareholding company in turn.
How many shareholders does Tourmaline Bio, Inc. have on record?
5 shareholders are shown on record for Tourmaline Bio, Inc.. The register reports 10 in total; only the top 5 by holding are shown here.
What is Tourmaline Bio, Inc.'s company registration number?
Tourmaline Bio, Inc.'s registration number is 6587568, filed with New York Department of State — Division of Corporations in United States. Its current status on the register is active.
Is Tourmaline Bio, Inc. still an active company?
Tourmaline Bio, Inc.'s status on New York Department of State — Division of Corporations is listed as active.
When was Tourmaline Bio, Inc. incorporated?
Tourmaline Bio, Inc. was incorporated on 12 September 2022, according to New York Department of State — Division of Corporations.
What is Tourmaline Bio, Inc.'s registered address?
The registered address on file for Tourmaline Bio, Inc. is ALBANY, United States.
What legal structure is Tourmaline Bio, Inc. registered as?
Tourmaline Bio, Inc. is registered as a Private limited company (Ltd.) in United States.
Who are the officers/directors of Tourmaline Bio, Inc.?
The Cfo & Treasurer of Tourmaline Bio, Inc. currently on record is Ryan Robinson Cpa; five officers are currently on record for Tourmaline Bio, Inc., filed with New York Department of State — Division of Corporations. Management authority at Tourmaline Bio, Inc. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Can Zavia monitor changes to Tourmaline Bio, Inc.'s ownership over time?
This profile reflects a point-in-time snapshot from New York Department of State — Division of Corporations. Zavia's monitoring API can track changes to Tourmaline Bio, Inc.'s registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access Tourmaline Bio, Inc.'s data through an API?
Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including United States, so records like Tourmaline Bio, Inc.'s registration, shareholder, UBO, and group-structure data can be queried programmatically instead of viewed one page at a time.
Where does this company information come from, and how current is it?
This record is sourced directly from New York Department of State — Division of Corporations and was last synced on 21 October 2026.