Atlas Venture Fund X, L.P. → Spero Therapeutics, Inc. SPRO

Stake: — Shares: —

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)

0 transactions

0 buys · 0 sales · 0 awards/exercises

Issuer Cluster

6 13D/G filings on this issuer

5 other filings besides this one

Filer Track Record

3 filings by this filer

2 other filings in the data moat

Short Interest · settle 2026-03-31

DTC 1.86

605,311 shares short · +12.6% vs prior

Institutional Consensus · 2025-12-31

Held by elite portfolio managers

1 holder · $102K

Point72 Asset Mgmt

Other 13D/G Filings on Spero Therapeutics, Inc.

Filed	Form	Filer	Stake	Shares
2022-11-14	SC	GSK PLC	—	—	view →
2021-09-16	SC	GLAXOSMITHKLINE PLC	—	—	view →
2020-12-07	SC	GLAXOSMITHKLINE PLC	—	—	view →
2020-06-04	SC	GLAXOSMITHKLINE PLC	—	—	view →
2018-07-17	SC	GLAXOSMITHKLINE PLC	—	—	view →

Other Filings by Atlas Venture Fund X, L.P.

Filed	Form	Issuer	Stake	Shares
2022-12-06	SC	Replimune Group, Inc. REPL	—	—	view →
2020-07-07	SC	Replimune Group, Inc. REPL	—	—	view →

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