WaveMan · Form 4
Insider buying on Jul 22, 2026
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Insider buying on Jul 22, 2026

On Jul 22, 2026, 34 insiders at 18 companies filed 58 purchases reported on Form 4, worth $12.8M in all, with a median purchase of $97.4K. The largest was Ra Capital Management, L.p., Director, 10% owner of Parabilis Medicines, Inc. (PBLS), who reported buying 98,433 shares worth $2.7M. Officers accounted for 28 purchases, directors who are not officers for 20, and 10% owners with no board or officer role for 7. Chief executives and chief financial officers filed 5 purchases: Kemly Thomas J., President & CEO, Director of Columbia Financial, Inc./MD/ (CLBK); Lipman Matthew E., Chief Executive Officer, Director, 10% owner of Capstone Holding Corp. (CAPS); Liu Chang, Chief Executive Officer, Director, 10% owner of 17 Education & Technology Group Inc. (YQ) among others. 4 companies showed cluster buying, two or more insiders buying within 7 days: CLBK (16 insiders), TSM (2 insiders), RDGL (2 insiders), CIK 1777677 (2 insiders). For 18 insiders of 34, this was the first purchase of that company's stock on our record. That is more than the 32 purchases filed on Jul 21, 2026. A Form 4 is due within two business days of the trade, so most of these purchases were made earlier in the week. Code P also covers shares bought privately from the company, so one large figure can be a negotiated placement rather than buying on the exchange.

Insider purchases filed Jul 22, 2026

Form 4, transaction code P, non-derivative, largest first
CompanyValueInsiderRoleSharesFiled
PBLS Parabilis Medicines, Inc.$2.7MRa Capital Management, L.p.Director, 10% owner98,4332026-07-22
PBLS Parabilis Medicines, Inc.$1.4MRa Capital Management, L.p.Director, 10% owner47,2502026-07-22
PBLS Parabilis Medicines, Inc.$1.1MRa Capital Management, L.p.Director, 10% owner37,7232026-07-22
PBLS Parabilis Medicines, Inc.$914.4KRa Capital Management, L.p.Director, 10% owner32,9872026-07-22
PBLS Parabilis Medicines, Inc.$606.6KRa Capital Management, L.p.Director, 10% owner21,6962026-07-22
CLBK Columbia Financial, Inc./MD/$500.0KSplaine Thomas JrEVP, CFO50,0002026-07-22
CLBK Columbia Financial, Inc./MD/$500.0KKlein Steven MSr. EVP, COO, Director50,0002026-07-22
CLBK Columbia Financial, Inc./MD/$444.0KSchlesinger Allyson KatzSEVP&Head of Consumer Banking44,4002026-07-22
CLBK Columbia Financial, Inc./MD/$400.0KKemly Thomas J.President & CEO, Director40,0002026-07-22
CLBK Columbia Financial, Inc./MD/$300.0KKlimowich JohnSEVP & Chief Risk Officer30,0002026-07-22
HDSN Hudson Technologies Inc /ny$285.7KHartree Partners, LP10% owner47,7082026-07-22
CLBK Columbia Financial, Inc./MD/$272.0KRandall Elizabeth E.Director27,2002026-07-22
CLBK Columbia Financial, Inc./MD/$250.0KVan Dyk RobertDirector25,0002026-07-22
CLBK Columbia Financial, Inc./MD/$205.0KGibney Dennis E.1st Sr. EVP, CBO, Director20,5002026-07-22
CLBK Columbia Financial, Inc./MD/$200.0KSorrentini LucyDirector20,0002026-07-22
PBLS Parabilis Medicines, Inc.$189.7KRa Capital Management, L.p.Director, 10% owner6,5042026-07-22
CAPS Capstone Holding Corp.$167.0KLipman Matthew E.Chief Executive Officer, Director, 10% owner41,7502026-07-22
CLBK Columbia Financial, Inc./MD/$150.0KMassood Michael Jr.Director15,0002026-07-22
CLBK Columbia Financial, Inc./MD/$150.0KPrabhu Manesh BalachandranEVP & CIO15,0002026-07-22
CLBK Columbia Financial, Inc./MD/$145.0KLewis Oliver Edward JrSEVP & Head Commercial Banking14,5002026-07-22
CLBK Columbia Financial, Inc./MD/$130.6KKemly Thomas J.President & CEO, Director13,0572026-07-22
CLBK Columbia Financial, Inc./MD/$125.0KGibney Dennis E.1st Sr. EVP, CBO, Director12,5002026-07-22
CLBK Columbia Financial, Inc./MD/$122.0KRandall Elizabeth E.Director12,2002026-07-22
CLBK Columbia Financial, Inc./MD/$115.0KGibney Dennis E.1st Sr. EVP, CBO, Director11,5002026-07-22
HDSN Hudson Technologies Inc /ny$106.9KHartree Partners, LP10% owner17,8422026-07-22
CLBK Columbia Financial, Inc./MD/$105.8KRandall Elizabeth E.Director10,5802026-07-22
CLBK Columbia Financial, Inc./MD/$100.0KMassood Michael Jr.Director10,0002026-07-22
CLBK Columbia Financial, Inc./MD/$100.0KKuiken James MichaelDirector10,0002026-07-22
CLBK Columbia Financial, Inc./MD/$100.0KWainwright Jim HobartDirector10,0002026-07-22
TOI Starling Oncology, Inc.$94.9KChernett Jorey10% owner18,0002026-07-22
CLBK Columbia Financial, Inc./MD/$90.0KRinaldi Mayra LisethEVP, Corp Governance & Culture9,0002026-07-22
NMM Navios Maritime Partners L.P.$85.1KFrangou AngelikiSee Remarks, Director, 10% owner1,1672026-07-22
NMM Navios Maritime Partners L.P.$85.1KFrangou AngelikiSee Remarks, Director, 10% owner1,1492026-07-22
NMM Navios Maritime Partners L.P.$83.0KFrangou AngelikiSee Remarks, Director, 10% owner1,1212026-07-22
CLBK Columbia Financial, Inc./MD/$75.0KHolland Noel R.Director7,5002026-07-22
TSM Taiwan Semiconductor Manufacturing Co Ltd$74.1KLin Shyue-ShyhVP1,0002026-07-22
TSM Taiwan Semiconductor Manufacturing Co Ltd$72.7KLin Shyue-ShyhVP1,0002026-07-22
CLBK Columbia Financial, Inc./MD/$56.0KSchlesinger Allyson KatzSEVP&Head of Consumer Banking5,6002026-07-22
SNES SenesTech, Inc.$51.6KGlenbrook Capital Management10% owner35,0002026-07-22
CLBK Columbia Financial, Inc./MD/$50.0KKlimowich JohnSEVP & Chief Risk Officer5,0002026-07-22
YQ 17 Education & Technology Group Inc.$20.1KLiu ChangChief Executive Officer, Director, 10% owner9,2872026-07-22
CLBK Columbia Financial, Inc./MD/$11.6KRinaldi Mayra LisethEVP, Corp Governance & Culture1,1572026-07-22
BTO John Hancock Financial Opportunities Fund$7.5KBacic William KInsider1842026-07-22
SWZ Total Return Securities Fund$5.9KSell Moritz ADirector1,0002026-07-22
CLBK Columbia Financial, Inc./MD/$5.0KLewis Oliver Edward JrSEVP & Head Commercial Banking5002026-07-22
HEQ John Hancock Diversified Income Fund$3.5KBacic William KInsider3082026-07-22
JCTC Jewett Cameron Trading Co Ltd$3.3KAJB Investment Fund II, LP10% owner1,3502026-07-22
RDGL Vivos Inc$3.0KWeeks Brad AllanPresident60,0002026-07-22
SWZ Total Return Securities Fund$2.8KSell Moritz ADirector4832026-07-22
RCG RENN Fund, Inc.$2.3KHorizon Kinetics Asset Management Llc10% owner7562026-07-22
RDGL Vivos Inc$1.6KWeeks Brad AllanPresident32,0002026-07-22
CLBK Columbia Financial, Inc./MD/$1.0KRinaldi Mayra LisethEVP, Corp Governance & Culture1002026-07-22
CIK 1885551$638Monte Mark DavidDirector632026-07-22
CLBK Columbia Financial, Inc./MD/$500Rinaldi Mayra LisethEVP, Corp Governance & Culture502026-07-22
CIK 1777677$500Booth Richard WhitakerInsider412026-07-22
TPL Texas Pacific Land Corp$413Horizon Kinetics Asset Management Llc10% owner12026-07-22
CIK 1777677$362Monte Mark DavidDirector302026-07-22
CLBK Columbia Financial, Inc./MD/$300Rinaldi Mayra LisethEVP, Corp Governance & Culture302026-07-22
SEC EDGAR · FORM 4 · FILED 2026-07-22 · INFORMATIONAL ONLY

Cluster buys

Two or more insiders at one company within 7 days
CLBK Columbia Financial, Inc./MD/
16 insiders within 7 days · $4.7M filed this day
16
TSM Taiwan Semiconductor Manufacturing Co Ltd
2 insiders within 7 days · $146.8K filed this day
2
RDGL Vivos Inc
2 insiders within 7 days · $4.6K filed this day
2
CIK 1777677
2 insiders within 7 days · $862 filed this day
2

Source: U.S. Securities and Exchange Commission (EDGAR) and other official government data · Updated 2026-10-12 · For informational purposes only, not investment advice.
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