Steven Keith Burke

CIK 1619834 · SVP, Chief Medical Officer · last filed 2026-02-04

Steven Keith Burke is a SVP, Chief Medical Officer who has filed 43 SEC Form 4 insider transactions across 2 companies since 2015. The most recent filing shows the insider sold $94.0K of AKBA on Feb 4, 2026. Across all open-market trades the lifetime net is −$341.6K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $936.6K 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

$936.6K

Companies

2

Total Filings

43

Lifetime Open-Market Net

-$341.6K

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
AKBA SVP, Chief Medical Officer 969,133 $0.87 $845.5K -$364.1K 22 2026-02-04
PRTO SVP and Chief Medical Officer 3,206 $28.42 $91.1K $22.6K 14 2019-03-18

Recent Filings

43 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
2026-02-04 AKBA Sell (S) −67,658 -$94.0K EDGAR
2026-02-03 AKBA Grant (A) +204,000 $0 EDGAR
2026-02-02 AKBA Notice (144) −67,658 -$94.3K EDGAR
2025-03-04 AKBA Sell (S) −7,144 -$13.1K EDGAR
2025-03-03 AKBA Notice (144) −7,144 -$13.1K EDGAR
2025-02-04 AKBA Mixed +144,394 -$106.1K EDGAR
2025-02-03 AKBA Notice (144) −50,506 -$106.3K EDGAR
2024-05-09 AKBA Sell (S) −27,000 -$31.0K EDGAR
2024-03-01 AKBA Sell (S) −7,169 -$11.3K EDGAR
2024-02-29 AKBA Sell (S) −8,367 -$12.7K 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.