Companies: 10,795·Total market cap: $144.5T
Tourmaline Bio, Inc.

Tourmaline Bio, Inc.

TRMLNASDAQHealthcare
$47.98
+$0.00(+0.00%)
Market Cap$1.2B
P/E Ratio
52W High$48.27
52W Low$11.56

Tourmaline Bio, Inc. (TRML) Shares Outstanding — Overview

Basic and diluted weighted average shares, YoY change, float context, and historical trend from SEC filings and FMP.

TRML · shares outstanding · updated Jun 9, 2026

Key metrics

Basic Shares Outstanding · Weighted average · fiscal year
25.3M +433.98% YoY Change
FY · as of Dec 31, 2024 · Reported in USD
vs 4.7M in FY 2023
Diluted Shares Outstanding
25.3M
incl. options, RSUs, convertibles
Dilution Spread
+0.00%
Diluted vs Basic
YoY Change
+433.98%
year-over-year
Float (Free Float)
16.8M
publicly tradable shares
65.4% of total
Source: FMP /income-statement · /shares-float · SEC 10-K / 10-QUpdated: 2026-06-09

Shares Outstanding Growth Rate

3-Year CAGRincreasing
+32.6%
2021 → 2024
5-Year CAGRincreasing
+43.7%
2019 → 2024
10-Year CAGR

Negative CAGR typically indicates share buyback or retirement activity. Interpret alongside Splits and Financials tabs. Splits / Financials

Shares outstanding history

↓ Decrease — typically buyback / retirement
↑ Increase — issuance / equity compensation
Latest
* most recent reported · FMP /income-statement · weightedAverageShsOut

Annual shares outstanding by year

FY 2024Latest
Diluted Shares: 25.3M
25.3M
+433.98%
FY 2023
Diluted Shares: 4.7M
4.7M
-76.66%
FY 2022
Diluted Shares: 20.3M
20.3M
+87.00%
FY 2021
Diluted Shares: 10.9M
10.9M
+1526.76%
FY 2020
Diluted Shares: 668,506
668,506
-83.83%
FMP /income-statement · weightedAverageShsOut · weightedAverageShsOutDilUnit: Billions (B)

Healthcare sector shares outstanding comparison

Shares Outstanding for similar companies or competitors in the Healthcare sector.

#SymbolCompanyShares (Basic)vs TRML
#1
Merck & Co., Inc.MRK
Merck & Co., Inc.
2.502B+>999%
#2
Johnson & JohnsonJNJ
Johnson & Johnson
2.429B+>999%
#3
AbbVie Inc.ABBV
AbbVie Inc.
1.780B+>999%
#4
AstraZeneca PLCAZN
AstraZeneca PLC
1.550B+>999%
#5
UnitedHealth Group IncorporatedUNH
UnitedHealth Group Incorporated
910.0M+>999%
#6
Eli Lilly and CompanyLLY
Eli Lilly and Company
898.0M+>999%
#7
Tourmaline Bio, Inc.TRML
Tourmaline Bio, Inc.YOU
25.3M

/company-screener · per-peer /income-statement · cache 86400s

Understanding Shares Outstanding

What Are Shares Outstanding? (Basic)

Tourmaline Bio, Inc. (TRML) shares outstanding is the total number of issued shares held by shareholders — the basis for Basic EPS and market capitalization. As of December 31, 2024, Tourmaline Bio, Inc. reports 25.3M basic shares outstanding (weighted average).

Basic vs. Diluted Shares Outstanding

Tourmaline Bio, Inc.'s basic shares outstanding (25.3M) represents currently issued shares. Diluted shares outstanding (25.3M) also includes potential shares from stock options, RSUs, and convertibles. Dilution spread: +0.00%.

Shares Outstanding vs. Float (Free Float)

Tourmaline Bio, Inc.'s float is 16.8M (65.4% of total shares outstanding) — shares freely available for public trading, excluding insider-held and restricted shares.

Float16.8M(65.4%)
Outstanding25.7M

Float data from /shares-float reflects the most recent SEC filing period-end. The weighted average shares (from /income-statement) may differ — this is a normal reporting window difference, not a data error.

FMP /income-statement · /shares-float · SEC EDGAR · USD

About shares outstanding & methodology

Tourmaline Bio, Inc. (TRML) shares outstanding history from 2019 to 2024. Shares outstanding can be defined as the total number of shares held by all shareholders — including institutional investors, retail investors, and company insiders — assuming conversion of all convertible debt, securities, warrants, and options. This metric excludes the company's treasury shares.

Tourmaline Bio, Inc. shares outstanding for the fiscal year ending December 31, 2024 were 25.3M, a 433.98% increase year-over-year. Tourmaline Bio, Inc. FY 2024 shares outstanding were 25.3M, a +433.98% increase from FY 2023.

Tourmaline Bio, Inc. is a leading company operating in the Healthcare sector. The company's share count trajectory — with a 10-year CAGR of — — is a key signal for investors evaluating capital return policy, EPS accretion, and long-term shareholder value creation.

Figures tie to SEC 10-K/10-Q income statement disclosures and FMP /income-statement · /shares-float where noted.

Frequently asked questions

TRML shares outstanding · 4 questions

As of December 31, 2024, Tourmaline Bio, Inc. (TRML) has approximately 25.3M basic shares outstanding and 25.3M diluted shares outstanding. This represents a +433.98% year-over-year increase from FY 2023 (4.7M). The increase may reflect equity compensation issuances or secondary offerings.

TRML shares outstandinghow many shares does TRML haveTRML basic shares 2024TRML diluted shares

Data: FMP /income-statement · /shares-float · SEC EDGAR · weighted average basis · Tourmaline Bio, Inc. SEC 10-K & 10-Q filings · US GAAP · Last updated: 2026-06-09