SEC Form 4 · Insider disclosures

Recent Insider Selling

Recent sales grouped by company, with disclosed plans and holdings context. A sale alone does not establish a bearish view.

Updates are delayed; the last verified disclosures remain available.

Purchase rows312
Sale rows1,613
Purchase value (USD)US$469.72M
Sale value (USD)US$1.44B

Last 10 days of filings·Updated Oct 23, 3:53 AM ET

Recent company disclosures

1 companies · 14 rows
BLLN

BillionToOne, Inc.

Sale total ≈ US$2.91M

14 transaction rows · 2 filings

Atay Oguzhan

Sale
CEO / Director disclosed sale of 3,083 shares

Filing includes a 10b5-1 plan; attribution to this row is unconfirmed

Approximately 100 shares in direct holdings afterward; change percentage not reliably calculable

Calculated transaction value approximately US$303.12K

Atay Oguzhan

Sale
CEO / Director disclosed sale of 100 shares

Filing includes a 10b5-1 plan; attribution to this row is unconfirmed

Approximately 0 shares in direct holdings afterward; change percentage not reliably calculable

Calculated transaction value approximately US$9.9K
Show 12 more transaction rows

Atay Oguzhan

Sale
CEO / Director disclosed sale of 900 shares

Filing includes a 10b5-1 plan; attribution to this row is unconfirmed

Approximately 4.25K shares in direct holdings afterward; change percentage not reliably calculable

Calculated transaction value approximately US$88.59K

Atay Oguzhan

Sale
CEO / Director disclosed sale of 1,861 shares

Filing includes a 10b5-1 plan; attribution to this row is unconfirmed

Approximately 2.39K shares in direct holdings afterward; change percentage not reliably calculable

Calculated transaction value approximately US$185.81K

Atay Oguzhan

Sale
CEO / Director disclosed sale of 1,276 shares

Filing includes a 10b5-1 plan; attribution to this row is unconfirmed

Approximately 1.11K shares in direct holdings afterward; change percentage not reliably calculable

Calculated transaction value approximately US$128.37K

Atay Oguzhan

Sale
CEO / Director disclosed sale of 980 shares

Filing includes a 10b5-1 plan; attribution to this row is unconfirmed

Approximately 133 shares in direct holdings afterward; change percentage not reliably calculable

Calculated transaction value approximately US$99.75K

Atay Oguzhan

Sale
CEO / Director disclosed sale of 133 shares

Filing includes a 10b5-1 plan; attribution to this row is unconfirmed

Approximately 0 shares in direct holdings afterward; change percentage not reliably calculable

Calculated transaction value approximately US$13.67K

Atay Oguzhan

Sale
CEO / Director disclosed sale of 2,667 shares

Filing includes a 10b5-1 plan; attribution to this row is unconfirmed

Approximately 149K shares in indirect holdings afterward; change percentage not reliably calculable

Calculated transaction value approximately US$261.37K

Atay Oguzhan

Sale
CEO / Director disclosed sale of 1,961 shares

Filing includes a 10b5-1 plan; attribution to this row is unconfirmed

Approximately 14.7K shares in direct holdings afterward; change percentage not reliably calculable

Calculated transaction value approximately US$179.57K

Atay Oguzhan

Sale
CEO / Director disclosed sale of 2,553 shares

Filing includes a 10b5-1 plan; attribution to this row is unconfirmed

Approximately 12.2K shares in direct holdings afterward; change percentage not reliably calculable

Calculated transaction value approximately US$237.55K

Atay Oguzhan

Sale
CEO / Director disclosed sale of 6,763 shares

Filing includes a 10b5-1 plan; attribution to this row is unconfirmed

Approximately 5.39K shares in direct holdings afterward; change percentage not reliably calculable

Calculated transaction value approximately US$633.33K

Atay Oguzhan

Sale
CEO / Director disclosed sale of 3,869 shares

Filing includes a 10b5-1 plan; attribution to this row is unconfirmed

Approximately 1.52K shares in direct holdings afterward; change percentage not reliably calculable

Calculated transaction value approximately US$366.06K

Atay Oguzhan

Sale
CEO / Director disclosed sale of 1,521 shares

Filing includes a 10b5-1 plan; attribution to this row is unconfirmed

Approximately 0 shares in direct holdings afterward; change percentage not reliably calculable

Calculated transaction value approximately US$146.61K

Atay Oguzhan

Sale
CEO / Director disclosed sale of 2,667 shares

Filing includes a 10b5-1 plan; attribution to this row is unconfirmed

Approximately 152K shares in indirect holdings afterward; change percentage not reliably calculable

Calculated transaction value approximately US$260.33K
Sources, coverage & updates
SEC filing dates: 2026-10-14 — 2026-10-23 (America/New_York)

Current-day data is provisional; historical dates are reconciled to official daily indexes.

Last successful sync: Oct 23, 3:53 AM ET

Historical dates reconciled; current day provisional

Discovered filings 2,284 · Parsed 2,284 · Pending 0

Table I non-derivative P/S only. Values use reported price × shares; 9 unavailable, unverified or non-USD amounts are excluded. 743 filings · 691 distinct reporting owners, not necessarily independent decision-makers.

Company grouping is a reading aid, not a merger of transactions or uncertain ownership ratios. Value sorting uses each company’s usable total; expand to see every matching row.

Reading these disclosures

Form 4 disclosures are not real-time trade alerts. An unchecked 10b5-1 indicator does not establish discretionary timing. Direct and indirect holdings remain separate; unresolved amendments stay under review.

Filed prices are not all independently market-verified. Source: SEC EDGAR; the update target is every 15 minutes. Actual freshness is shown by the last successful synchronization.

SEC transaction codes ↗