← United States · Coverage record
US · SEC FORM 4
NASDAQ, INC.
NDAQ · Nasdaq · CIK 0001120193 · Financial Services · Financial Data & Stock Exchanges
INSIDER SIGNAL
1 qualifying P purchase group
in the current 180-day scoring window
33 Form 4 transaction lines observed in the same window
18 sales · 14 option, withholding, award, gift or other lines
WHY NO ACTIVE SIGNAL?
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.
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.
Purchase breadth & concentration
Roles in the peak window: TenPercentOwner. Concentration uses priced qualifying P lines only and does not change the saved score.
Insider activity timeline
Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.
Showing the six most active owners; 12 additional owner(s) remain in Form 4 evidence.
SIGNAL HISTORY
Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2026-06-11 · INVESTOR AB; Innax AB.
Recent Form 4 activity
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 has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.
Short interest
Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.
- Shares short
- 7,671,012
- Previous report
- 7,482,822
- Avg daily volume
- 3,566,710
- Days to cover
- 2.1
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 date | Reporting owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-06-11 | INVESTOR AB; Innax AB | Purchase (P) | Common Stock | 56,782 | USD 85.98 | USD 4,882,116 | SEC filing ↗ |
| 2026-02-17 | Torgeby Johan | Purchase (P) | Common Stock, par value $0.01 per share | 12,000 | USD 79.86 | USD 958,320 | SEC filing ↗ |
| 2026-02-13 | INVESTOR AB | Purchase (P) | Common Stock | 200,000 | USD 79.18 | USD 15,836,000 | SEC filing ↗ |
| 2024-11-13 | ZOLLAR ALFRED W | Purchase (P) | Common Stock, par value $0.01 per share | 2,542 | USD 80.24 | USD 203,970 | SEC filing ↗ |
| 2023-10-23 | Torgeby Johan | Purchase (P) | Common Stock, par value $0.01 per share | 14,000 | USD 50.42 | USD 705,880 | SEC filing ↗ |
| 2023-08-03 | YABUKI JEFFERY W | Purchase (P) | Common Stock, par value $0.01 per share | 500 | USD 49.40 | USD 24,700 | SEC filing ↗ |
| 2023-07-31 | FRIEDMAN ADENA T | Purchase (P) | Common Stock, par value $0.01 per share | 10,000 | USD 51.00 | USD 510,000 | SEC filing ↗ |
| 2023-06-13 | BLACK STEVEN D | Purchase (P) | Common Stock, par value $0.01 per share | 4,000 | USD 51.46 | USD 205,840 | SEC filing ↗ |
Form 4 evidence
102 transaction lines in the latest 365-day window; 587 in local history.
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-10-12 | SKULE JEREMY | Sale (S) | Common Stock, par value $0.01 per share | 1,125 | USD 94.13 | USD 105,896 | SEC filing ↗ |
| 2026-10-01 | SKULE JEREMY | Tax withholding (F) | Common Stock, par value $0.01 per share | 1,262 | USD 92.01 | USD 116,117 | SEC filing ↗ |
| 2026-09-22 | SKULE JEREMY | Sale (S) | Common Stock, par value $0.01 per share | 1,125 | USD 95.00 | USD 106,875 | SEC filing ↗ |
Show recent Form 4 evidence (30 grouped rows)
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-10-12 | SKULE JEREMY | Sale (S) | Common Stock, par value $0.01 per share | 1,125 | USD 94.13 | USD 105,896 | SEC filing ↗ |
| 2026-10-01 | SKULE JEREMY | Tax withholding (F) | Common Stock, par value $0.01 per share | 1,262 | USD 92.01 | USD 116,117 | SEC filing ↗ |
| 2026-09-22 | SKULE JEREMY | Sale (S) | Common Stock, par value $0.01 per share | 1,125 | USD 95.00 | USD 106,875 | SEC filing ↗ |
| 2026-09-10 | SKULE JEREMY | Sale (S) | Common Stock, par value $0.01 per share | 1,125 | USD 94.22 | USD 105,998 | SEC filing ↗ |
| 2026-08-10 | SKULE JEREMY | Sale (S) | Common Stock, par value $0.01 per share | 2,250 | USD 94.75 | USD 213,188 | SEC filing ↗ |
| 2026-08-10 | Griggs PC Nelson | Sale (S) | Common Stock, par value $0.01 per share | 3,226 | USD 96.16 | USD 310,212 | SEC filing ↗ |
| 2026-08-07 | Peterson Bradley J | Sale (S) | Common Stock, par value $0.01 pershare | 6,000 | USD 95.55 | USD 573,300 | SEC filing ↗ |
| 2026-08-03 | Smith Bryan Everard | Sale (S) | Common Stock, par value $0.01 per share | 1,556 | USD 95.07 | USD 147,929 | SEC filing ↗ |
| 2026-07-29 | Griggs PC Nelson | Sale (S) | Common Stock, par value $0.01 per share | 11,010 | USD 96.35 | USD 1,060,814 | SEC filing ↗ |
| 2026-07-27 | Griggs PC Nelson | Sale (S) | Common Stock, par value $0.01 per share | 11,010 | USD 93.96 | USD 1,034,500 | SEC filing ↗ |
| 2026-07-24 | Peterson Bradley J | Sale (S) | Common Stock, par value $0.01 pershare | 13,000 | USD 92.61 | USD 1,203,930 | SEC filing ↗ |
| 2026-07-24 | Griggs PC Nelson | Sale (S) | Common Stock, par value $0.01 per share | 6,777 | USD 92.53 | USD 627,076 | SEC filing ↗ |
| 2026-07-01 | Smith Bryan Everard | Sale (S) | Common Stock, par value $0.01 per share | 3,000 | USD 80.00 | USD 240,000 | SEC filing ↗ |
| 2026-06-11 | Smith Bryan Everard | Sale (S) | Common Stock, par value $0.01 per share | 3,000 | USD 86.91 | USD 260,730 | SEC filing ↗ |
| 2026-06-11 | INVESTOR AB; Innax AB | Purchase (P) | Common Stock | 56,782 | USD 85.98 | USD 4,882,116 | SEC filing ↗ |
| 2026-06-11 | Torgeby Johan | Tax withholding (F) | Common Stock, par value $0.01 per share | 300 | USD 86.72 | USD 26,016 | SEC filing ↗ |
| 2026-06-11 | Kazim Essa | Tax withholding (F) | Common Stock, par value $0.01 per share | 622 | USD 86.72 | USD 53,940 | SEC filing ↗ |
| 2026-06-10 | ZOLLAR ALFRED W | Award / grant (A) | Common Stock, par value $0.01 per share | 4,497 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-10 | YABUKI JEFFERY W | Award / grant (A) | Common Stock, par value $0.01 per share | 4,612 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-10 | Townes-Whitley Toni | Award / grant (A) | Common Stock, par value $0.01 per share | 2,998 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-10 | Torgeby Johan | Award / grant (A) | Common Stock, par value $0.01 per share | 2,998 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-10 | SPLINTER MICHAEL R | Award / grant (A) | Common Stock, par value $0.01 per share | 5,246 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-10 | SPAHT PAUL HOLDEN JR. | Award / grant (A) | Common Stock, par value $0.01 per share | 2,998 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-10 | Koch Kathryn A. | Award / grant (A) | Common Stock, par value $0.01 per share | 3,171 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-10 | Kazim Essa | Award / grant (A) | Common Stock, par value $0.01 per share | 4,151 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-10 | KLOET THOMAS A | Award / grant (A) | Common Stock, par value $0.01 per share | 4,554 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-10 | BEGLEY CHARLENE T | Award / grant (A) | Common Stock, par value $0.01 per share | 2,998 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-10 | ARNOLDI MELISSA | Award / grant (A) | Common Stock, par value $0.01 per share | 4,324 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-18 | Griggs PC Nelson | Sale (S) | Common Stock, par value $0.01 per share | 5,093 | USD 92.62 | USD 471,714 | SEC filing ↗ |
| 2026-04-28 | Peterson Bradley J | Sale (S) | Common Stock, par value $0.01 pershare | 7,710 | USD 90.82 | USD 700,222 | SEC 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 date | 2026-10-19 |
|---|---|
| Ranking version | US-v1.2 |
| Data quality | PASS ELIGIBLE · — |
| Ticker | NDAQ |
| CIK | 0001120193 |
| Sector | Financial Services |
| Industry | Financial Data & Stock Exchanges Yahoo Finance |
| SEC SIC | 6200 Security & Commodity Brokers, Dealers, Exchanges & Services |
| Exchange | Nasdaq |
Data coverage
| Local Form 4 history | 587 transaction lines from 2020-02-03 to 2026-10-12 8 P purchase lines · 160 S sale lines · 419 other lines |
|---|---|
| SEC company submissions | Open SEC filings ↗ |
Local ledger as of 2026-10-19. Mapping status is an audit field and does not erase SEC filing evidence.