Gossamer Bio Shares Outstanding History (GOSS)

Gossamer Bio reported 233.7M shares outstanding at the end of fiscal 2025.

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Gossamer Bio annual shares outstanding history

Gossamer Bio annual shares outstanding

Fiscal yearPeriod endedShares outstandingChangeGrowth
20252025-12-31233.7M7.1M+3.12%
20242024-12-31226.6M1.2M+0.53%
20232023-12-31225.4M131.0M+138.72%
20222022-12-3194.4M18.7M+24.65%
20212021-12-3175.8M1.9M+2.54%
20202020-12-3173.9M12.2M+19.86%
20192019-12-3161.6M53.6M+665.52%
20182018-12-318.1M

Gossamer Bio shares outstanding trends

Over the last five reported fiscal years, Gossamer Bio's shares outstanding moved from 73.9M to 233.7M, a change of 159.8M. The latest reported quarter, Q2 2026, shows 488.8M.

About the metric

What shares outstanding means

Shares outstanding is the number of common shares held by investors at a reporting-period end. The count can change because of stock issuance, repurchases, conversions, acquisitions, or stock splits.

Calculation and source

SEC-reported period-end shares

TickerStat displays period-end common shares from SEC filings and adjusts older values to the current share basis when SEC-reported stock-split conversion ratios are available. Values remain as reported when no split ratio is available. Fiscal periods can differ from calendar years, so exact period-end dates are included.

Review Gossamer Bio filings at SEC.gov ↗