Overview
Insider activity was heavily concentrated in financials and technology, with significant selling in software and notable buying in regional banks and pharmaceuticals.
High Signal
PBLS — L.p. Ra Capital Management purchased $6.73M (largest purchase of PBLS). Dip Buy: the stock was down 10% in the previous 6 months. 9 other insiders also purchased in the last 30 days.
CLBK — EVP, CFO (Splaine Thomas Jr) bought $500K (largest purchase of CLBK). SEVP&Head of Consumer Banking (Schlesinger Allyson Katz) purchased $500K (largest purchase of CLBK). President & CEO (Kemly Thomas J.) bought $530.6K (largest and 2nd largest purchases of CLBK). SEVP & Chief Risk Officer (Klimowich John) purchased $350K (largest and 2nd largest purchases of CLBK). Randall Elizabeth E. bought $509.8K (largest to 4th largest purchases of CLBK). Van Dyk Robert purchased $250K (largest purchase of CLBK). Massood Michael Jr. bought $250K (largest and 2nd largest purchases of CLBK). Lewis Oliver Edward Jr (SEVP & Head Commercial Banking) purchased $150K (largest and 2nd largest purchases of CLBK). 1st Sr. EVP, CBO (Gibney Dennis E.) bought $445K (largest to 3rd largest purchases of CLBK). EVP, Corp Governance & Culture (Rinaldi Mayra Liseth) purchased $127K (largest to 5th largest purchases of CLBK). Sorrentini Lucy bought $200K (first recorded purchase). Holland Noel R. purchased $75K (largest purchase of CLBK). 9 other insiders also purchased in the last 30 days. Several filers increased their holdings by over 50%, with some exceeding 100% increases.
Notable Buys
HDSN — LP Hartree Partners purchased $393K (first and 2nd largest purchases of HDSN). The insider increased their position by 1%. The stock was relatively flat over the last month.
NMM — See Remarks (Frangou Angeliki) bought $253K (three purchases, largest to 3rd largest for NMM). The insider has been a consistent buyer, with three purchases in as many days.
TSM — VP (Lin Shyue-Shyh) purchased $147.3K (largest and 2nd largest purchases of TSM). The insider increased their holdings by 3% and 4% in two consecutive days.
Notable Sells
SNOW — Slootman Frank sold $77.6M across 16 filings between 2026-07-20 and 2026-07-21. This represents the largest and most sustained selling activity in the sample. The insider reduced their holdings by up to 61% in some transactions.
ONC — Chief Executive Officer (John Oyler) sold $29.7M across 13 filings between 2026-07-20 and 2026-07-21. The CEO reduced his position by up to 100% in several tranches, with multiple large block sales.
CRWV — Chief Development Officer (McBee Brannin) sold $19.2M across 36 filings on 2026-07-20. The insider executed a series of sales, reducing holdings by up to 95% in some transactions.
DDOG — Chief Technology Officer (Le-Quoc Alexis) sold $10.2M across 8 filings on 2026-07-20. The CTO reduced their position by up to 1.9% in each transaction.
PBF — Control Empresarial de Capitales S.A. de C.V. sold $14.1M across 2 filings on 2026-07-20. The insider reduced their position by less than 1%.
Patterns
- Financial sector insiders, especially at Columbia Financial (CLBK), were aggressive buyers, with several increasing their holdings by over 50%.
- Technology sector saw heavy selling, particularly in software (SNOW, CRWV, DDOG), with multiple large block sales by top executives.
- Manufacturing and pharmaceutical insiders (PBLS) made significant purchases into a 10% 6-month decline, with broad insider participation.
Close
Top buy tickers by $ value: PBLS $6.73M, CLBK $3.97M, HDSN $393K.
Top sell tickers by $ value: SNOW $77.6M, ONC $29.7M, CRWV $19.2M.
EARNINGS AHEAD
PBF — estimated report ~Aug 3 (quarterly)
DDOG — estimated report ~Aug 9 (quarterly)
ONC — estimated report ~Aug 11 (quarterly)
CLBK — estimated report ~Aug 12 (quarterly)