Insider profile
VIKING GLOBAL INVESTORS LP Insider Trading
This page tracks every SEC Form 4 filing since April 2023 by VIKING GLOBAL INVESTORS LP: 68 transactions in total, including 7 open-market purchases and 25 sales. Each record is parsed directly from the original filing, with amendments reconciled so a corrected filing never double-counts.
- CIK
- 0001103804
- Companies traded
- 5
- Total filings
- 68
- First filing
- 2023-05-09
- Last filing
- 2025-10-07
Files as VIKING GLOBAL INVESTORS LP · SEC EDGAR ↗
Activity summary
The most recent open-market decision, on October 7, 2025, was 3 sales totaling 350,000 shares ($11.3M).
Three year balance
Buy and sell value by quarter, Q2 23 to Q4 25. VIKING GLOBAL INVESTORS LP has been a net seller across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $625.6M.
Insider insight
VIKING GLOBAL INVESTORS LP trades most actively in APG, accounting for 14 of the 68 filings on record. The largest single open-market purchase on record is $16.8M in RYZB, filed Sep 2023.
Track record
Most active in
Transaction History
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 7, 2025 | VIKING GLOBAL INVESTORS LP | INBX | Sale | 25,042 | $32.25 | $808K |
| Oct 7, 2025 | VIKING GLOBAL INVESTORS LP | INBX | Sale | 16,315 | $32.25 | $526K |
| Oct 7, 2025 | VIKING GLOBAL INVESTORS LP | INBX | Sale | 308,643 | $32.25 | $9.95M |
| Jun 27, 2025 | VIKING GLOBAL INVESTORS LP | BBIO | Sale | 3,500,000 | $44.00 | $154.00M |
| Jan 31, 2025 | VIKING GLOBAL INVESTORS LP | BBIO | Sale | 3,065,616 | $34.90 | $106.99M |
45 more transactions hidden
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By number of filings.
Based on the last 50 filings on file — this insider has a longer history.
Filing cadence
Filings per quarter, this window.
Busiest: Q1 24 (27 filings)
Quietest: Q4 23 (0 filings)
Based on the last 50 filings on file — this insider has a longer history.
Reading an insider's Form 4 history
Corporate insiders — directors, officers, and holders of more than 10% of a company's stock — must report their trades to the SEC on Form 4 within two business days. Looking at one insider's filings over time shows whether they tend to buy on the open market (a discretionary use of their own money, generally the strongest signal), sell, or simply receive and exercise equity awards as compensation.
The track record above measures how this insider's past open-market purchases performed in the months after each filing. Trades made under a pre-scheduled Rule 10b5-1 plan are flagged because they carry no timing signal. To pull any insider's full history programmatically, see the insider trading API or our guide to reading Form 4 filings.