Home

STEPHEN T ZARRILLI

CIK 1203410 · President & CEO · last filed 2026-08-19

STEPHEN T ZARRILLI is a President & CEO who has filed 110 SEC Form 4 insider transactions across 5 companies since 2007. The most recent filing, for GMED, was dated Aug 19, 2026. Across all open-market trades the lifetime net is −$5.3M, making them a net seller over the disclosed history. 77 SEC filings were submitted jointly with SAFEGUARD SCIENTIFICS INC.

"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.

Loading insider history…
Disclosed Exposure

$0

Companies

5

Total Filings

110

Lifetime Open-Market Net

-$5.35M

Filer Profile

Reported Address
FIBERLINK COMMUNICATIONS CORP.
794 PENLLYN PIKE
BLUE BELL, PA 19422
Related Filers
SAFEGUARD SCIENTIFICS INC — 77 joint filings, latest 2018-06-18
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
GMED Director 0 $74.57 $0 -$4.28M 10 2026-08-19
VIRTUS INVESTMENT PARTNERS, INC. (VRTSV) Delisted Director 3,549 — — -$1.04M 12 2024-03-07
SAFEGUARD SCIENTIFICS INC (SFE) Delisted President & CEO 191,504 $0.46 $87.1K $257.5K 74 2018-06-18
NUTRI SYSTEM INC /DE/ (PRMW) Delisted Director 13,995 $24.21 $338.8K -$141.7K 5 2015-05-14
NUTRI SYSTEM INC /DE/ (NTRI) Delisted Director 7,628 — — -$140.5K 6 2010-05-21

Recent Filings

110 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
2026-08-19 GMED Mixed — -$844.2K EDGAR
2026-08-18 GMED Notice (144) −25,000 -$2.18M EDGAR
2026-01-23 GMED Grant (A) — $0 EDGAR
2025-11-13 GMED Mixed — -$1.00M EDGAR
2025-11-12 GMED Notice (144) −25,000 -$2.11M EDGAR
2025-03-28 GMED Grant (A) — $0 EDGAR
2024-03-07 VIRTUS INVESTMENT PARTNERS, INC. (VRTSV) Delisted Sell (S) −2,150 -$534.1K EDGAR
2024-03-06 VRTS Notice (144) −2,150 -$533.0K EDGAR
2024-01-30 GMED Grant (A) — $0 EDGAR
2023-05-19 VIRTUS INVESTMENT PARTNERS, INC. (VRTSV) Delisted Grant (A) +602 $107.5K EDGAR
Showing 1–10 of 110
Page 1 of 11
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.