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MARLA PERSKY

CIK 1270354 · last filed 2026-06-05

MARLA PERSKY is a corporate insider who has filed 19 SEC Form 4 insider transactions across 2 companies since 2007. The most recent filing, for XERS, was dated Jun 5, 2026. Across all open-market trades the lifetime net is −$4.4M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $1.3M 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

$1.32M

Companies

2

Total Filings

19

Lifetime Open-Market Net

-$4.38M

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
XERS Director 157,063 $8.43 $1.32M -$201.0K 11 2026-06-05
CYTYC CORP (CYTC) Delisted Director 343,680 — — -$4.18M 4 2007-08-10

Recent Filings

19 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
2026-06-05 XERS Mixed +8,693 -$91.4K EDGAR
2026-06-03 XERS Notice (144) −15,500 -$93.0K EDGAR
2025-09-12 XERS Sell (S) −15,500 -$119.6K EDGAR
2025-09-11 XERS Notice (144) −15,500 -$121.1K EDGAR
2025-06-04 XERS Grant (A) +50,000 $0 EDGAR
2024-06-05 XERS Grant (A) +50,000 $0 EDGAR
2023-11-15 XERS Buy (P) +6,370 $10.1K EDGAR
2023-06-07 XERS Grant (A) +42,500 $0 EDGAR
2022-06-09 XERS Grant (A) +15,000 $0 EDGAR
2021-10-05 — Grant (A) — $0
Showing 1–10 of 19
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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.