SPRO

Spero Therapeutics, Inc.

Healthcare · Biotechnology

$272.42 sample

-4.44 (-1.60%) 1D

Market cap

$799.0B

Price as of

2026-10-03

Latest filing

8-K · 2026-08-20

Alerts

8

Price$272.42 -4.09% 3M daily closessample

295.15269.93

2026-07-072026-07-292026-08-202026-09-102026-10-02

purchase / approvalsale / rejectionfiling / neutral

Latest events

Filings, trades, FDA; newest first

Sep 28INSInsider sell: EVP, Operations
Sep 22INSInsider sell: EVP, Operations
Sep 17INSInsider sell: General Counsel
Sep 08INSInsider sell: 10% owner
Aug 31INSInsider sell: General Counsel
Aug 26INSInsider buy: Chief Financial Officer
Aug 20SECForm 144 filed
Aug 14INSInsider sell: EVP, Operations

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Company facts

SEC EDGAR registration

Name: Spero Therapeutics, Inc.
Sector: Healthcare
Industry: Biotechnology
Smart-money score: +6sample, -100 to +100
Reporting currency: USD

Who is positioning in SPRO

sample

Insiders: 6 insider transactions over 90 days, net selling, $324.5M
Congress: 2 members traded over 90 days
Institutions · 13F: 40 funds hold $13.7B
Activists · 13D/G: No 13D/13G activist filings on record

How are the fundamentals trending?

sample, by period end

Revenue$21.0B +13.4% y/y

Q4 2024Q3 2026

Inventory$13.1B +15.7% y/y

Q4 2024Q3 2026

Accounts receivable$9.2B +6.0% y/y

Q4 2024Q3 2026

Total debt$26.4B +15.5% y/y

Q4 2024Q3 2026

Peers

sample

Sample peer A: $771.3B +0.8% 3M
Sample peer B: $278.0B -7.6% 3M
Sample peer C: $314.9B +11.4% 3M
Sample peer D: $593.8B +2.9% 3M
Sample peer E: $564.2B -12.2% 3M