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Caribou Biosciences shares owned by Siren

Quarter-by-quarter ownership of Caribou Biosciences (CRBU) shares owned by Siren from 13F filings

Historical chart of Siren investment in Caribou Biosciences

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All positions including Caribou Biosciences held by Siren consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in Caribou Biosciences by Siren

Quarter filed Position value Share count Share price at filing
2025-09-30 $246k 105k 2.33
2025-06-30 $133k 105k 1.26
2025-03-31 $96k 105k 0.91
2024-12-31 $168k 105k 1.59
2024-09-30 $207k 105k 1.96