Insider Radar — Week of June 22, 2026
Insider selling always dwarfs buying, and this week it ran at $13.40 sold per dollar bought, right at the recent norm. The catch: the biggest 'buys' were a biotech financing round, an IPO-priced allocation taken by five insiders at one fixed price, and a controlling holder accumulating preferred, not fresh conviction.
Insiders sold about $13.40 for every $1 they bought, right at the recent norm of ~14×. And the top of the buy list wasn't conviction: a $90M biotech financing round at Kardigan, a $75.8M IPO-priced allocation at DPC Holdings taken by five insiders at a flat $33.00, and ~$20M of preferred-share accumulation by Liberty Latin America's controlling holder.
The buying wasn't really conviction
$276M of insider buying looks meaningful until you unpack the top of it. The single largest block, $90M into Kardigan (KARD), was venture backers (ARCH Venture Partners, HRTG and board member Paul Berns) crossing the 10% ownership line in a financing round at a flat $16.00. It shows up on Form 4, but it isn't open-market conviction. The second name is the same pattern at a different stage: five DPC Holdings (DPC) insiders, including the CEO and CFO, reported $75.8M of stock at a uniform $33.00 on June 26. One price across five filers on one day is an offering allocation being reported, not five people deciding the stock is cheap.
The #3 name, $32.6M in Liberty Latin America (LILA), was John Malone. But about $20M of that was accumulation of Series A preferred shares (a fixed-income-like instrument) by the controlling shareholder during a special-dividend consolidation, not a directional equity bet. Strip out the financings and the preferred, and the week's genuinely directional open-market conviction was modest: a $24.8M director buy at CG Oncology (CGON) and $17.7M from 51Talk's founder-CEO (COE), plus small, habitual CEO buys at Prospect Capital and Nexstar.
| Ticker | Buyer | Role | Bought |
|---|---|---|---|
| KARD | ARCH Venture, HRTG, Paul Berns | 10% owners (financing) | $90.0M |
| DPC | Five insiders incl. CEO and CFO | Officers and directors (offering) | $75.8M |
| LILA | John Malone | Controlling holder | $32.6M |
| CGON | Brian Liu | Director | $24.8M |
| COE | Jack Huang | CEO / founder | $17.7M |
| PAM | Marcos Mindlin | Director | $4.7M |
| PSEC | John Barry | Chairman & CEO | $4.7M |
| BNR | Yusheng Han | Director | $3.0M |
The selling was mostly funds and scheduled plans
Insiders sold $3.69B on the week (with dispositions above $1B per event excluded as reorganization-scale). At 13.4× the buying that sounds extreme, but insider selling is structurally lopsided (options, diversification, liquidity), and recent weeks have run a median of about 14×, so this week sat right at the norm.
About 38% of it, $1.40B, was pre-scheduled 10b5-1 plan selling that carries no current-quarter signal, including $250M at Broadcom (AVGO) and $64M at Oracle (ORCL). The largest discretionary sales were funds trimming positions, not executives leaving their own companies: Spyre Therapeutics (Fairmount, $400M), Dollar Tree (activist Mantle Ridge, $248M) and Kymera (BVF Partners, $168M). One block deserves a footnote: a $177M sale of WaterBridge Infrastructure (WBI) stock on June 22 appears three times in the filings, reported by three related holding entities over the same shares, with Devon Energy separately selling $52.7M. Post-IPO distributions by a control group look like a wave of selling in the raw feed; economically it is one exit.
| Ticker | Seller | Role | Event value | Type | Date |
|---|---|---|---|---|---|
| SYRE | Fairmount Funds Management | 10% holder | $399.7M | Open market | Jun 23 |
| AVGO | Henry Samueli | Director | $250.0M | 10b5-1 | Jun 24 |
| DLTR | Mantle Ridge LP | Activist fund | $248.3M | Open market | Jun 24 |
| WBI | WaterBridge control group | 10% holders (co-filed) | $177.1M | Open market | Jun 22 |
| KYMR | BVF Partners | 10% holder | $168.1M | Open market | Jun 26 |
| PRM | WindAcre Partnership | 10% holder | $117.6M | Open market | Jun 26 |
| ORCL | Jeffrey Henley | Vice Chairman | $63.7M | 10b5-1 | Jun 24 |
| WBI | Devon Energy | 10% holder | $52.7M | Open market | Jun 22 |
Methodology
Covers every SEC Form 4 filed on EDGAR during June 22–28, 2026, grouped into economic events by transaction code and ownership form and scored on the summed value of the group. Events above $1 billion are excluded: at insider scale these are almost always M&A, tender, or reorganization dispositions (or filer errors), not tradeable insider activity. 'Buying' and 'selling' sum non-derivative purchase (P) and sale (S/D) transactions. The sell/buy ratio is compared to the median of recent steady-state weeks with over $10M of buying (14.3×, from 6 weeks; filing coverage matured in mid-2026, so the baseline is short). LILA's common-vs-preferred split is inferred from per-share price pending a structured security-class field. Restated on August 6, 2026: a coverage gap in our Form 4 collector, found and fixed that day, had dropped a share of filings for this window. The figures above reflect the complete set backfilled from SEC's daily indexes; the originally published issue reported 784 filings, $192.3M of buying and $3.57B of selling. This is a filtered readout of public filings, not investment advice.
Sources: SEC EDGAR (Form 4 filings)
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