Latest market intelligence, industry updates, and institutional investing news from SEC filings data.
Horizon Kinetics co-founder Murray Stahl kept adding RENN Fund shares in late March 2026. The dollars were small, but the setup matters because he sits at the center of the funds strategy, board, and ownership story.
Two Protagonist Therapeutics insiders sold more than $8M of PTGX stock in late March as the biotech moved deeper into a milestone-rich phase with regulatory and trial catalysts ahead.
Tempus AI CEO Eric Lefkofsky sold roughly $7.7M of TEM stock in late March, but the transaction landed while Tempus was still carrying strong 2026 growth expectations and heavy analyst attention.
PBF Energy chairman Thomas Nimbley sold about $2.6M of stock after exercising options, a filing that arrived as PBF talked about better gross refining margins and a Martinez restart.
Klaviyo co-founder Andrew Bialecki sold $3.6M of Class A shares in March, but the filing still showed a dominant control position through other share classes and structures.
IAC bought roughly $37.2M of MGM stock across two March filings, extending Barry Dillers long-running accumulation into a period of improving BetMGM and 2026 optimism.
HPE CEO Antonio Neri sold about $6.7M of stock in late March while HPE was balancing Juniper integration, AI-networking ambitions, and a cost-reset story.
Gap CEO Horacio Barbeito sold roughly $2.7M of stock in March just after Gap outlined its 2026 priorities around Old Navy, new store formats, and the next stage of its brand reset.
James Winston King's March 2026 GWRE sale followed Guidewire's stronger outlook and cloud momentum, adding a fresh insider signal during a fast rerating phase.
F5 CEO François Locoh-Donou disclosed a fresh March sale after the company raised FY2026 expectations and expanded its AI-era application security platform.
Todd McKinnon's latest Okta sales came days after the company's FY2026 results, but Form 4 Table II still reports 6,383,887 derivative/indirect shares.
Wayfair co-founders Niraj Shah and Steven Conine executed near-identical stock sales on March 23-24, totaling about $8.4M each, after similar December waves.
T-Mobile CEO G. Michael Sievert has continued a repeatable two-day selling cadence in TMUS, with block size stepping down from 22,500 shares in 2025 windows to 15,000 shares in February 2026.
Palo Alto Networks CEO Nikesh Arora bought nearly $10.0M of PANW in the open market on March 27, a rare insider buy after heavy September selling at much higher prices.
AvePoint executives Brian Brown, Tianyi Jiang, and Xunkai Gong reported about $278K of March 2026 code F dispositions after grants and vesting activity, a pattern that looks mechanical rather than bearish.
ConnectOne Bancorp insiders Frank Sorrentino III and Laura Criscione reported roughly $623K of code F dispositions on March 20 and March 23, 2026, a pattern that reads as tax settlement rather than open-market selling.
Outset Medical CEO Leslie Trigg continued a small-lot selling pattern into early 2026 even as the company pointed to better margins and a stronger cash runway.
Jim Baker added 25,000 more KYN shares in March 2026, extending a steady run of open-market purchases in Kayne Anderson Energy Infrastructure Fund.
AMETEK insiders David Zapico, John Hardin, and Tony Ciampitti all reported March 2026 code F tax withholdings after new equity awards, a compensation event that reads differently from open-market selling.
James Eric Bjornholt disclosed three Microchip stock sales worth about $646K across late November and late February as the chipmaker reset guidance and priced fresh convertible notes.