Summary
Updated Aug 31, 2026
Nostrand Robert L. van is Director of SELLAS Life Sciences Group, Inc. (SLS). 2 SEC Form 4 filings on record, most recently on 13 June 2025. Most recent open-market trade: bought $15K of SLS on 13 June 2025. Lifetime open-market purchases: $15K.
Recent Transactions
2Every recent SEC Form 4 transaction Nostrand Robert L. van has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Nostrand Robert L. van files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Katherine Bach Kalin - $101K of SLS open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Nostrand Robert L. van?
Nostrand Robert L. van is a corporate insider, tracked as Director of SELLAS Life Sciences Group, Inc. (SLS). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Nostrand Robert L. van last file a Form 4?
The most recent primary Form 4 on record is dated 13 June 2025, one of 2 filings going back to 2025.
Has Nostrand Robert L. van been buying or selling stock?
Recorded transactions: 1 open-market purchase ($15K) and 0 open-market sales across all tracked filings.
Where can I see all of Nostrand Robert L. van's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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