VIKING GLOBAL INVESTORS LP

CIK 1103804 · last filed 2024-02-28

VIKING GLOBAL INVESTORS LP is a corporate insider who has filed 13 SEC Form 4 insider transactions across 7 companies since 2019. The most recent filing, for BBIO, was dated Jan 31, 2025. Across all open-market trades the lifetime net is −$529.3M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $3.11B across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$3.11B

Companies

7

Total Filings

13

Lifetime Open-Market Net

-$529.26M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
RayzeBio, Inc. (RYZB) Delisted 10%+ Owner 1,285,223 $62.49 $80.31M $200.00M 1 2023-09-21
Frazier Lifesciences Acquisition Corp (FLACW) Delisted 10%+ Owner 1,211,582 $0.80 $969.3K $68.31M 1 2022-11-04
FIGS 10%+ Owner 14,785,102 $10.33 $152.73M -$65.49M 1 2021-09-03
RLYB 10%+ Owner 524,347 $16.16 $8.47M $73.35M 1 2021-08-02
ADPT 10%+ Owner 29,993,708 $22.52 $675.46M -$1.37B 2 2020-12-16
BBIO 10%+ Owner 26,620,991 $85.55 $2.28B $560.00M 1 2019-06-28
Urovant Sciences Ltd. (UROV) Delisted 10%+ Owner 22,791,378 $16.24 $370.13M $1.93M 2 2019-06-06

Recent Filings

13 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2025-01-31 BBIO Notice (144) −3,065,616 -$106.99M EDGAR
2024-02-28 Other (J) −53,141,600 $0
2024-01-02 APG Notice (144) −6,500,000 -$213.72M EDGAR
2023-09-21 RayzeBio, Inc. (RYZB) Delisted Mixed +53,141,600 $200.00M EDGAR
2022-11-04 Frazier Lifesciences Acquisition Corp (FLACW) Delisted Buy (P) +6,776,496 $68.31M EDGAR
2021-09-03 FIGS Sell (S) −1,400,000 -$65.49M EDGAR
2021-08-02 RLYB Mixed +29,363,439 $73.35M EDGAR
2020-12-16 ADPT Sell (S) −9,000,000 -$500.85M EDGAR
2020-11-13 ADPT Sell (S) −17,500,000 -$866.51M EDGAR
2019-06-28 BBIO Mixed +186,346,937 $560.00M EDGAR
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Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.