Week of Jun 8 – Jun 12, 2026
By Trabud Research Team · SEC Form 4 & insider trading data analysts
Last updated:
RA Capital entities led the week’s insider buying with a $423.8 million purchase of 21.2 million PBLS shares, while CEO Robert Duggan and co-CEO Mahkam Zanganeh each added $50 million worth of SMMT stock. On the sell side, Coliseum Capital Management offloaded $124 million of UTI shares, followed by Dutch Bros Chairman Travis Boersma’s $92.6 million disposal and Circle Director Patrick Neville’s $85.7 million sale.
- Total bought
- $570.2M
- 10 filings
- Total sold
- $709.2M
- 10 filings
- Companies
- 17
- tracked this week
- Net flow
- −$138.9M
- net selling
Top insider buys
| # | Company | Insider | Shares | Value |
|---|---|---|---|---|
| 1 | PBLSParabilis Medicines, Inc. | Peter KolchinskyDirector | 21.2M | $423.8M |
| 2 | SMMT◇2Summit Therapeutics Inc. | Robert W DugganCEO | 3.8M | $50.0M |
| 3 | SMMT◇2Summit Therapeutics Inc. | Zanganeh MahkamCEO | 3.8M | $50.0M |
| 4 | FBINFortune Brands Innovations, Inc. | Edward P GardenDirector | 320.1K | $13.0M |
| 5 | ARTVArtiva Biotherapeutics, Inc. | Peter KolchinskyDirector | 1.0M | $7.7M |
| 6 | FUNSix Flags Entertainment Corporation/NEW | JAFFER REHANDirector | 250.0K | $5.9M |
| 7 | PARPAR TECHNOLOGY CORP | Travis W. CockeOther | 350.0K | $5.1M |
| 8 | STEPStepStone Group Inc. | Michael I MccabeOther | 120.0K | $5.0M |
| 9 | BORRBorr Drilling Ltd | Troim Tor OlavDirector | 1.1M | $5.0M |
| 10 | NDAQNASDAQ, INC. | INVESTOR ABOther | 56.8K | $4.9M |
Top insider sells
| # | Company | Insider | Shares | Value |
|---|---|---|---|---|
| 1 | UTIUNIVERSAL TECHNICAL INSTITUTE INC | Christopher S ShackeltonDirector | 3.0M | $124.2M |
| 2 | BROS◇2Dutch Bros Inc. | Travis BoersmaChairman | 1.5M | $92.6M |
| 3 | CRCLCircle Internet Group, Inc. | Patrick Sean NevilleDirector | 1.0M | $85.7M |
| 4 | APGAPi Group Corp | FRANKLIN MARTIN EDirector | 2.0M | $84.2M |
| 5 | BROS◇2Dutch Bros Inc. | DM Trust Aggregator, LLCOther | 977.9K | $60.3M |
| 6 | AMDADVANCED MICRO DEVICES INC | Lisa T SuCEO | 125.0K | $57.6M |
| 7 | CCOClear Channel Outdoor Holdings, Inc. | Raymond T. WhiteDirector | 23.4M | $56.3M |
| 8 | DELL◇2Dell Technologies Inc. | Egon DurbanDirector | 138.9K | $55.3M |
| 9 | DELL◇2Dell Technologies Inc. | Egon DurbanDirector | 131.0K | $52.2M |
| 10 | NAVNNavan, Inc. | Lightspeed Venture Partners X, L.P.Other | 2.0M | $40.9M |
Quick Answer
What were the biggest insider trades the week of Jun 8 – Jun 12, 2026?
For the week of Jun 8 – Jun 12, 2026, the biggest buy was $423.8M of PBLS by Peter Kolchinsky; the biggest sale was $124.2M of UTI by Christopher S Shackelton.
Source: SEC EDGAR Form 4
Frequently Asked Questions
Which insider bought the most the week of Jun 8 – Jun 12, 2026?
Peter Kolchinsky (Director) bought $423.8M of Parabilis Medicines, Inc. (PBLS) — the largest insider purchase of the week by dollar value.
Which insider sold the most the week of Jun 8 – Jun 12, 2026?
Christopher S Shackelton (Director) sold $124.2M of UNIVERSAL TECHNICAL INSTITUTE INC (UTI) — the largest insider sale of the week by dollar value.
How are these insider trades ranked?
Trabud ranks each week's SEC Form 4 filings by total transaction dollar value, surfacing the largest open-market insider buys and sells. All data comes directly from official SEC EDGAR filings.
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