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RICHARD F POPS

CIK 1126490 · Director and CEO, Alkermes plc · last filed 2026-05-29

RICHARD F POPS is a Director and CEO, Alkermes plc who has filed 219 SEC Form 4 insider transactions across 5 companies since 2007. The most recent filing, for NBIX, was dated May 29, 2026. Across all open-market trades the lifetime net is −$140.3M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $72.7M 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

$72.68M

Companies

5

Total Filings

219

Lifetime Open-Market Net

-$140.30M

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
NBIX Director 37,798 $159.82 $6.04M -$13.18M 39 2026-05-29
ALKS Director and CEO, Alkermes plc 1,377,740 $48.37 $66.64M -$125.56M 158 2026-03-04
Epizyme, Inc. (EPZM) Delisted Director — $1.47 — $0 8 2020-06-02
ACCELERON PHARMA INC (XLRN) Delisted Director 32,500 $178.75 $5.81M -$1.55M 8 2019-01-29
EPIRUS Biopharmaceuticals, Inc. (CRXX) Delisted Director — — — $0 2 2008-06-02

Recent Filings

219 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
2026-05-29 NBIX Grant (A) — $0 EDGAR
2026-05-21 NBIX Exer (M) +3,318 $0 EDGAR
2026-05-18 NBIX Mixed — -$1.65M EDGAR
2026-05-15 NBIX Notice (144) −15,000 -$2.39M EDGAR
2026-03-04 ALKS Grant (A) — $0 EDGAR
2026-02-06 ALKS Mixed +87,350 -$2.09M EDGAR
2025-05-22 NBIX Mixed +2,869 $0 EDGAR
2025-02-20 ALKS Grant (A) — $0 EDGAR
2025-02-07 ALKS Mixed +110,715 -$2.51M EDGAR
2024-05-23 NBIX Grant (A) — $0 EDGAR
Showing 1–10 of 219
Page 1 of 22
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.