Whalewisdom Preps API 13F Access, Subscription Fees

Tennessee-based Whalewisdom, an aggregator of quarterly 13F holdings filings, which traders can use to see which investment managers are buying or selling large positions in specific stocks or options, has rolled out API access to its database to support automated queries, and is considering charging a professional subscription fee to support the service.

Whalewisdom founder Daniel Collins says the API—which he rolled out at the end of June—will appeal to smaller investment firms without the res

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