Insiders

SEC Form 4 activity, with receipts.

Named insiders, transaction values, Veridion Score context, and SEC filing links in one ledger. Missing price or quantity rows are dropped, never zero-filled.

SEC Form 4 ledger

NSC insider activity

NSC

Score
57 · NEUTRAL
Pressure
Net selling
Filings
87
Buys / sells
59 / 28
Net value
-$1.3M
Insiders
17
Named filers
FS
Fahmy Sameh
Insider
Leadership
HK
Heitkamp Mary Kathryn
Insider
Leadership
CJ
Clyburn William Jr.
Insider
Leadership
Cluster

11 insiders bought in the last 90 days

Net pressure

Net selling: -$1.3M across loaded Form 4 rows.

Convergence not established

Loaded official disclosures do not show all three sources aligned on this ticker.

Filing dateTrade dateInsiderTitleTypePriceQtyOwnedValueReceipt
2025-08-222025-08-20Fahmy SamehInsiderbuy$286.8761,183$2KSEC Form 4
2025-08-222025-08-20Heitkamp Mary KathrynInsiderbuy$286.8761,183$2KSEC Form 4
2025-08-222025-08-20Clyburn William Jr.Insiderbuy$286.8761,183$2KSEC Form 4
2025-08-222025-08-20Davidson Phillip SInsiderbuy$286.8791,868$3KSEC Form 4
2025-08-222025-08-20Huffard John C JrInsiderbuy$286.87214,585$6KSEC Form 4
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Source: SEC EDGAR Form 4. Rows with missing price or quantity are excluded rather than zero-filled.Methodology
Density audit
PageDepth vs barTop gap
Sovereign TerminalstrongKeep provenance dense as new panes are added.
Edge SuitestrongReserve-only reads need continued mobile audit.
Stock / ScorestrongInsider ledger now carries named filers and receipts.
Disclosure HubparHub links the disclosure surfaces, but needs more cross-surface summaries.
InsidersparConvergence becomes stronger as 13F coverage broadens.
NewsparNeeds more issuer-level receipts and source grouping.
Capital WebstrongAdd wider anchor coverage after current filer roster stabilizes.
Sector RankingsparRanking logic is useful, but drill-down context is still light.
WatchlistparNeeds more daily change explanations per ticker.
PortfolioparPer-holding Score table exists, but price/P&L attribution can be deeper.
ScreenerthinDefault result density depends on cold score dataset latency.
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