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Viking Long Fund Master Ltd.

CIK 1621596 · last filed 2019-07-02

Viking Long Fund Master Ltd. is a corporate insider who has filed 8 SEC Form 4 insider transactions across 5 companies since 2014. The most recent filing, for ADPT, was dated Jul 2, 2019. Across all open-market trades the lifetime net is +$176.0M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $1.37B across reported positions. The firm reports its address in Grand Cayman, E9. 42 SEC filings were submitted jointly with Viking Long Fund GP LLC.

"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

$1.37B

Companies

5

Total Filings

8

Lifetime Open-Market Net

$176.02M

Filer Profile

Reported Address
C/O MORGAN STANLEY FUND SRVCS (CAYMAN)
CICKET SQ, HUTCHINS DR, PO BOX 2681
GRAND CAYMAN, E9 KY1-1111
Phone
(441) 295-9166
State of Incorporation
Cayman Islands
Related Filers
Viking Long Fund GP LLC — 42 joint filings, latest 2023-06-26
VIKING GLOBAL PERFORMANCE LLC — 39 joint filings, latest 2023-06-26
Viking Global Equities II LP — 35 joint filings, latest 2023-06-26
OLE ANDREAS HALVORSEN — 30 joint filings, latest 2023-06-26
David C. Ott — 30 joint filings, latest 2023-06-26
Viking Global Equities LP — 30 joint filings, latest 2019-07-12
Rose Sharon Shabet — 23 joint filings, latest 2023-06-26
Viking Global Equities Master Ltd. — 22 joint filings, latest 2023-06-26
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

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
ADPT 10%+ Owner 38,406,607 $29.40 $1.13B $35.00M 1 2019-07-02
Myovant Sciences Ltd. (MYOV) Delisted 10%+ Owner 38,341,357 $26.98 $1.03B $135.00M 1 2018-04-04
ABUS 10%+ Owner — $4.87 — $0 2 2018-01-16
EDIT 10%+ Owner 4,439,209 $2.60 $11.52M $0 1 2016-02-08
W 10%+ Owner 2,330,247 $98.28 $229.02M $6.02M 2 2014-11-24

Recent Filings

8 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
2019-07-02 ADPT Mixed +258,871,249 $35.00M EDGAR
2018-12-20 — Buy (P) +90,000,000 $90.00M
2018-04-04 Myovant Sciences Ltd. (MYOV) Delisted Buy (P) +6,660,090 $135.00M EDGAR
2018-01-16 ABUS Buy (P) — $0 EDGAR
2017-10-17 ABUS Buy (P) — $0 EDGAR
2016-02-08 EDIT Mixed +32,757,696 $0 EDGAR
2014-11-24 W Buy (P) +246,400 $5.60M EDGAR
2014-11-05 W Buy (P) +16,800 $422.9K EDGAR
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.