Insider Radar — Week of July 27, 2026
Insider selling snapped back to $3.84 billion in the week of July 27, from $815.8 million the week before, making it the heaviest selling week in our coverage. What stands out is who did the selling. Of the twelve filings above $50 million, ten came from institutions and holding companies rather than from executives, led by Blackstone entities exiting Jersey Mike's. Buying stayed thin at $107.9 million, and about 60% of it was money that came in at a price agreed in advance.
Twelve Form 4 filings cleared $50 million in the week of July 27, 2026, against exactly one the week before, and ten of the twelve came from institutions rather than people: Blackstone-affiliated holders exiting Jersey Mike's, a sovereign wealth fund, a Japanese bank, private equity funds and holding companies. The two individuals on that list were Airbnb co-founder Joe Gebbia, whose $315.9 million sale was filed under a pre-scheduled 10b5-1 plan, and Amphenol CEO Adam Norwitt, whose $80.8 million open-market sale was the week's largest discretionary sale by a sitting executive. Total insider selling was $3.84 billion against $815.8 million the week before, the heaviest week in our coverage, though about a fifth of the raw total is one Jersey Mike's block co-filed by two related Blackstone entities.
The selling came back hard, and it was holders rather than executives
Insiders disposed of $3.84B across 614 events, up from $815.8M the week before and the heaviest weekly total in our coverage. One caveat belongs at the top: the single largest block, $648.8M of Jersey Mike's Subs (JMKE) sold at $21.85 on July 31, appears twice in the filings, reported by both Submarine Buyer LLC and Blackstone Holdings II over the same shares. Count it once and the week is about $3.19B, still nearly half again the early-July range.
The composition is the part worth reading. Twelve filings cleared $50M, against exactly one the week before, and ten of the twelve came from entities rather than individuals. The Blackstone exit from Jersey Mike's was joined by the Abu Dhabi Investment Authority selling its own $96.4M JMKE stake the same day. Advent International took $147.6M out of Intuitive Machines (LUNR). SRB Corp sold $127.8M of Safety Insurance (SAFT). Mitsubishi UFJ moved $88.4M of Morgan Stanley (MS). BBRC International sold $71.2M of Victoria's Secret (VSXY). Two private equity holders, FTV VII and BSIV Hold 101, took $116.3M out of Neptune Insurance (NP) between them on the same day. Position management by large holders looks identical to insider selling in a Form 4 feed, and it means something different.
The two individuals on the list are a study in contrast. Airbnb co-founder Joe Gebbia's $315.9M sale was filed under a pre-scheduled 10b5-1 plan, so it says nothing about this quarter. Amphenol (APH) CEO Adam Norwitt's $80.8M sale on July 31 was not scheduled: it is the week's largest discretionary sale by a sitting executive. Across the whole week $775.5M was scheduled selling, about 22% of the open-market total, and a further $362.5M never reached the market at all, disposed to the issuer, most of it the $212.3M block that REH Advisors returned to HF Sinclair (DINO) at $89.41 on August 2.
| Ticker | Seller | Role | Event value | Type | Date |
|---|---|---|---|---|---|
| JMKE | Submarine Buyer LLC / Blackstone Holdings II | 10% holders (co-filed, one block) | $648.8M | Open market | Jul 31 |
| ABNB | Joseph Gebbia | Director and 10% holder | $315.9M | 10b5-1 | Jul 27–28 |
| DINO | REH Advisors Inc. | Director-affiliated entity | $212.3M | To issuer | Aug 2 |
| LUNR | Advent International | 10% holder | $147.6M | Open market | Jul 28 |
| SAFT | SRB Corp | 10% holder | $127.8M | Open market | Jul 27 |
| JMKE | Abu Dhabi Investment Authority | 10% holder | $96.4M | Open market | Jul 31 |
| MS | Mitsubishi UFJ Financial Group | 10% holder | $88.4M | To issuer, 10b5-1 | Jul 30 |
| APH | Richard Adam Norwitt | President & CEO | $80.8M | Open market | Jul 31 |
| VSXY | BBRC International Pte Ltd | 10% holder | $71.2M | Open market | Jul 28 |
| NP | FTV VII, L.P. | 10% holder | $62.0M | Open market | Jul 29 |
Buying stayed thin, and most of the top of it was fixed price money
Insiders bought $107.9M across 149 events, against $114.6M the week before. About 60% of that arrived at a price agreed in advance rather than paid into the market. Scribe Therapeutics (SCTX) accounts for $35.1M, all of it at a flat $15.00 a share on July 27, split between OrbiMed Advisors at $15.0M, board member Carl Gordon at $15.0M and AH Bio Fund II at $5.0M. A uniform price across separate filers on a single day is a financing round being reported on Form 4, not three investors independently deciding the stock is cheap, and the same round was already filing the week before at the same $15.00. Three more lines in the chart are blank check sponsors funding their own vehicles at exactly $10.00: East West Ave (EWAVU) at $10.9M, Market Technology (MTAK) at $4.5M and Catalyst Acquisition (CATL) at $2.7M. MapLight Therapeutics (MPLT) is a mix of the two: of the $15.5M that Catalyst4 and one director put in, $13.0M was a round million shares at a flat $13.00 on July 30, and the remaining $2.5M came in at prices between $9.52 and $12.63.
What is left is small and mostly familiar. 51Talk (COE) chief executive Jack Jiajia Huang kept his daily buying streak going with $15.7M across the week, including $7.7M at $16.97 on July 27. Durable Capital Partners added $4.8M of Goosehead Insurance (GSHD) across the week between $59.51 and $62.00, a fund building a position rather than an operator backing their own company.
The cluster worth noting is Albertsons (ACI), where three officers bought within five days. Thomas Moriarty, EVP for M&A and corporate affairs, took $2.0M at $11.51 on July 27. Chief executive Susan Morris added $0.5M at about $11.42 the next day. President and CFO Sharon McCollam bought $0.1M at $11.48 on July 31. The combined figure is modest at $2.5M, but three executives of one company buying on the open market in the same week is a rarer configuration than a larger number from a single fund.
| Ticker | Buyer | Role | Event value | Price | Date |
|---|---|---|---|---|---|
| COE | Jack Jiajia Huang | Chief Executive Officer | $7.7M | $16.97 | Jul 27 |
| GSHD | Durable Capital Partners LP | 10% holder | $4.8M | $59.51–$62.00 | Jul 27–31 |
| ACI | Thomas Moriarty | EVP, M&A and Corporate Affairs | $2.0M | $11.51 | Jul 27 |
| NXTC | ADAR1 Capital Management, LLC | 10% holder | $1.7M | $4.80–$5.00 | Jul 27–31 |
| CVNA | Michael Maroone | Director | $1.5M | $61.69–$62.40 | Jul 31 |
| IONS | Michael Hayden | Director | $1.1M | $51.60–$53.38 | Jul 30–31 |
| BWMX | Luis Campos | Director and 10% holder | $0.8M | $16.41 | Jul 27 |
| ACI | Susan Morris | Chief Executive Officer | $0.5M | $11.38–$11.46 | Jul 28 |
Methodology
Source data is public SEC Form 4 filings collected by AlphaAI, covering transactions dated July 27 through August 2, 2026. Transactions are grouped into events by filing, issuer and ownership form, so a sale executed in many tranches under one filing counts once rather than inflating the count. Event groups summing above $1 billion are excluded, because at that size the row is almost always a merger, tender or reorganisation rather than a discretionary trade. Purchases are P-code transactions, disposals are S and D codes, and the two are reported separately because a D code is stock returned to the issuer rather than sold into the market. Where related entities co-file the same disposition (the Jersey Mike's block reported by two Blackstone-affiliated holders), the duplicate is flagged in prose and the table rather than silently summed. Activity filed under 10b5-1 plans is also split out, because those trades are scheduled months ahead and say nothing about what a seller thinks now. Roles come from the officer, director and 10 percent holder flags on the filing itself. Values are shares multiplied by the reported price, with no currency normalisation, so filings by foreign issuers priced in a local currency are screened out of the tables by hand. The recent median ratio covers the eleven preceding weeks with more than $10 million of buying, and filing coverage matured during 2026, so that baseline is still short. 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 638 filings, $95.8M of buying and $2.17B of selling, and did not contain the Jersey Mike's exit, the Intuitive Machines sale or the Amphenol CEO sale. This is a readout of public filings and not investment advice.
Sources: SEC EDGAR Form 4 filings
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