Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

Nebius Group N.V.

NBIS · Nasdaq · CIK 0001513845 · Communication Services · Internet Content & Information

INSIDER SIGNAL

No active buy signal

2 qualifying P purchase groups
in the current 180-day scoring window

113 Form 4 transaction lines observed in the same window
97 sales · 14 option, withholding, award, gift or other lines

Last qualifying purchase2026-10-16 · Grimme Arne · $25.2K

WHY NO ACTIVE SIGNAL?

Purchase activityPresent
Recent buying2 qualifying line group(s)
Recent salesHigh
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
Boroditsky MarcChief Revenue Officer
▼▼▼▼○▼○▼
Boynton John Wilson IVDirector
▼▼▼▼○▼▼
Korolenko AndreyChief Infrastructure Officer
○○▼▼▼▼
Bunina ElenaDirector
▼▼▼○
Shtan DanilaChief Technology Officer
▼▼▼
Grimme ArneDirector
○●●
● Purchase▼ Sale○ Other

Showing the six most active owners; 8 additional owner(s) remain in Form 4 evidence.

Purchase breadth & concentration

QUALIFYING BUYERS1
PURCHASE CONCENTRATION100%Largest buyer: Grimme Arne · $50.3K
CLUSTER BUYING · 15D1 insiderPeak activity: 2026-10-15–2026-10-16

Roles in the peak window: Director. Concentration uses priced qualifying P lines only and does not change the saved score.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2026-10-16 · Grimme Arne.

Recent Form 4 activity

2Purchases
103Sales
14Other Form 4 lines
42SEC filings · 365 days
BUYING2 qualifying P line(s) · 180 days
SELLING97 sale line(s) · context only
OTHER14 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context provides additional background on recent price performance and risk. It does not affect the Insider Signal.

Price performance

1M
-24.1%
3M
-9.4%
6M
+5.3%
12M
+31.5%

Volatility & liquidity

Volatility
113.3%
Beta
—
Avg daily value
USD 3.5B

Valuation

Market cap
—
P/E
—

Fundamentals

Profit margin
15.6%
ROE
1.8%
Industry
Internet Content & Information

Market data

Price data up to: 2026-10-18 · Price source: OpenBB/yfinance; volume from price cache (yfinance) · From SEC filings: Profit margin, ROE · Fiscal year ended: 2025-12-31 · Status: PASS

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
44,695,449
Previous report
46,779,540
Avg daily volume
16,508,886
Days to cover
2.7

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-16Grimme ArnePurchase (P)Class A Shares148USD 169.99USD 25,159SEC filing ↗
2026-10-15Grimme ArnePurchase (P)Class A Shares148USD 169.99USD 25,159SEC filing ↗

Form 4 evidence

119 transaction lines in the latest 365-day window; 119 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-16Grimme ArnePurchase (P)Class A Shares148USD 169.99USD 25,159SEC filing ↗
2026-10-15Grimme ArnePurchase (P)Class A Shares148USD 169.99USD 25,159SEC filing ↗
2026-10-12Boroditsky MarcSale (S)Class A Shares7,000USD 211.23USD 1,478,610SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-16Grimme ArnePurchase (P)Class A Shares148USD 169.99USD 25,159SEC filing ↗
2026-10-15Grimme ArnePurchase (P)Class A Shares148USD 169.99USD 25,159SEC filing ↗
2026-10-12Boroditsky MarcSale (S)Class A Shares7,000USD 211.23USD 1,478,610SEC filing ↗
2026-10-12Boroditsky MarcOption exercise / conversion (M)Class A Shares7,000USD 0.00USD 0SEC filing ↗
2026-10-05Nave OphirSale (S)Class A Shares500,000USD 235.53USD 117,765,468SEC filing ↗
2026-10-01Volozh ArkadiySale (S)Class A Shares37,778USD 234.16USD 8,846,096SEC filing ↗
2026-10-01Shtan DanilaSale (S)Class A Shares14,546USD 234.16USD 3,406,091SEC filing ↗
2026-10-01Korolenko AndreySale (S)Class A Shares29,090USD 234.16USD 6,811,714SEC filing ↗
2026-09-29Boynton John Wilson IVSale (S)Class A Shares50USD 235.01USD 11,750SEC filing ↗
2026-09-15Boynton John Wilson IVSale (S)Class A Shares6,364USD 210.36USD 1,338,712SEC filing ↗
2026-09-14Boroditsky MarcSale (S)Class A Shares7,000USD 209.08USD 1,463,560SEC filing ↗
2026-09-14Boroditsky MarcOption exercise / conversion (M)Class A Shares7,000USD 0.00USD 0SEC filing ↗
2026-09-01Weigand Matthew RobertAward / grant (A)Class A Shares1,352USD 0.00USD 0SEC filing ↗
2026-09-01Volozh ArkadiyAward / grant (A)Class A Shares1,352USD 0.00USD 0SEC filing ↗
2026-09-01Ryan Charles EAward / grant (A)Class A Shares1,352USD 0.00USD 0SEC filing ↗
2026-09-01Radinsky KiraAward / grant (A)Class A Shares1,352USD 0.00USD 0SEC filing ↗
2026-09-01Nave OphirAward / grant (A)Class A Shares1,352USD 0.00USD 0SEC filing ↗
2026-09-01Grimme ArneAward / grant (A)Class A Shares1,352USD 0.00USD 0SEC filing ↗
2026-09-01Bunina ElenaAward / grant (A)Class A Shares1,352USD 0.00USD 0SEC filing ↗
2026-09-01Boynton John Wilson IVAward / grant (A)Class A Shares1,352USD 0.00USD 0SEC filing ↗
2026-09-01Alonso Sanchez Maria del DadoSale (S)Class A Shares470USD 196.00USD 92,120SEC filing ↗
2026-08-14Ryan Charles ESale (S)Class A Shares50,000USD 265.53USD 13,276,633SEC filing ↗
2026-08-14Boynton John Wilson IVSale (S)Class A Shares5,296USD 270.99USD 1,435,147SEC filing ↗
2026-07-22Almog YaelAward / grant (A)Class A Shares7,793USD 218.16USD 1,700,121SEC filing ↗
2026-07-15Boroditsky MarcSale (S)Class A Shares22,386USD 197.00USD 4,410,042SEC filing ↗
2026-07-15Boynton John Wilson IVSale (S)Class A Shares6,958USD 197.00USD 1,370,744SEC filing ↗
2026-07-01Volozh ArkadiySale (S)Class A Shares46,627USD 235.45USD 10,978,327SEC filing ↗
2026-07-01Shtan DanilaSale (S)Class A Shares16,937USD 235.45USD 3,987,817SEC filing ↗
2026-07-01Korolenko AndreySale (S)Class A Shares33,871USD 235.45USD 7,974,927SEC filing ↗
2026-06-15Boroditsky MarcSale (S)Class A Shares4,500USD 250.00USD 1,125,000SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerNBIS
CIK0001513845
SectorCommunication Services
IndustryInternet Content & Information Yahoo Finance
SEC SIC7370 Services-Computer Programming, Data Processing, Etc.
ExchangeNasdaq

Data coverage

Local Form 4 history119 transaction lines from 2026-04-01 to 2026-10-16
2 P purchase lines · 103 S sale lines · 14 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.