Insiders who reported open-market trades in the last 12 months at the companies Timothy A. Springer files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
Marcella K. Ruddy - $363K in TECX purchases and sales in the last 12 months
Peter McNamara - $288K in TECX purchases and sales in the last 12 months
Daniel Lochner - $130K in TECX purchases and sales in the last 12 months
Alise Reicin - $106K in TECX purchases and sales in the last 12 months
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Timothy A. Springer is a corporate insider of Tectonic Therapeutic, Inc. (TECX). InsiderAlpha holds 9 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Timothy A. Springer last file a Form 4?
The most recent primary Form 4 on record is dated 10 June 2026, one of 9 filings going back to 2024.
Has Timothy A. Springer been buying or selling stock?
Recorded transactions: 41 open-market purchases ($35.08M) and 0 open-market sales across all tracked filings.
Timothy A. Springer files SEC Form 4 reports at Tectonic Therapeutic, Inc. (TECX). 9 SEC Form 4 filings on record going back to 2024, most recently on 10 June 2026. Most recent open-market trade: bought $876K of TECX on 11 April 2025. Lifetime open-market purchases: $35.08M.
Recent transactions
20
The latest 20 SEC Form 4 transactions reported by Timothy A. Springer.
InsiderAlpha's records for Timothy A. Springer go back to 2024: 9 primary Form 4 filings, an average of 3.0 per year. The typical open-market purchase is $856K (41 buys totaling $35.08M). The largest single buy on record is $10.08M of TECX in 2024. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
