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Walden Catalyst

投资主体（类型未细分）

Verified investment lower bound—

Investment cases2

Manager operating history—

Representative investments

Snorkel AI$3.5B AI21 Labs—

2026-09-22

Company round total

Snorkel AI · Series E

$350M

Verified round participation

Sources · 1

Snorkel AI Raises $350M to Scale the Data Factory for Frontier AI | Snorkel AI ↗2026-10-22

2023-11-21

Company round total

AI21 Labs · Series C最终扩募

$208M

Verified round participation

最终208已含2023-08公告155，绝不能重复累加

Sources · 1

AI21 Completes $208 Million Oversubscribed Series C Round | AI21 ↗2026-10-22