Alfred Sandrock

CIK 1577061 · President and CEO · last filed 2026-04-03

"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

$3.69M

Companies

3

Total Filings

66

Lifetime Open-Market Net

-$17.93M

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
VYGR President and CEO 472,549 $3.50 $1.65M -$620.4K 15 2026-04-03
BIIB Head of Research & Development 10,169 $200.05 $2.03M -$17.31M 46 2021-06-09
NBIX Director $159.76 $0 5 2019-05-23

Recent Filings · Page 2 of 7

66 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2024-02-16 VYGR Grant (A) +130,000 $0 EDGAR
2023-04-05 VYGR Sell (S) −7,437 -$58.2K EDGAR
2023-02-22 VYGR Grant (A) +120,000 $0 EDGAR
2022-03-23 VYGR Grant (A) +100,000 $0 EDGAR
2022-02-09 VYGR Grant (A) $0 EDGAR
2021-06-09 BIIB Sell (S) −7,672 -$3.38M EDGAR
2021-02-22 BIIB Grant (A) $0 EDGAR
2021-02-17 BIIB Mixed +944 -$975.9K EDGAR
2021-01-29 BIIB Grant (A) +3,728 $0 EDGAR
2020-11-06 BIIB Sell (S) −1,500 -$525.0K EDGAR
Showing 1120 of 66
Page 2 of 7
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.