NATHANIEL SISITSKY

CIK 1225738 · Chief Legal Officer · last filed 2026-04-22

NATHANIEL SISITSKY is a Chief Legal Officer who has filed 18 SEC Form 4 insider transactions across 3 companies since 2018. The most recent filing, for QDEL, was dated Apr 22, 2026. Current disclosed insider exposure totals $647.2K 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

$647.2K

Companies

3

Total Filings

18

Lifetime Open-Market Net

$0

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
QDEL Chief Legal Officer $14.13 $0 1 2026-04-22
STAA Chief Legal Officer 22,812 $28.37 $647.2K $0 5 2025-12-12
NUVASIVE INC (NUVA) Delisted SVP & General Counsel 0 $39.75 $0 $0 12 2023-09-05

Recent Filings

18 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2026-04-22 QDEL Grant (A) $0 EDGAR
2025-12-12 STAA Tax (F) −2,616 -$64.6K EDGAR
2025-03-18 STAA Grant (A) $0 EDGAR
2025-03-14 STAA Mixed +3,493 -$42.0K EDGAR
2024-03-14 STAA Grant (A) $0 EDGAR
2023-12-12 STAA Grant (A) +21,935 $0 EDGAR
2023-09-05 NUVASIVE INC (NUVA) Delisted Disp (D) −22,423 $0 EDGAR
2023-03-03 NUVASIVE INC (NUVA) Delisted Mixed +3,357 -$84.3K EDGAR
2022-03-03 NUVASIVE INC (NUVA) Delisted Mixed +5,161 -$156.3K EDGAR
2022-02-14 NUVASIVE INC (NUVA) Delisted Grant (A) $0 EDGAR
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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.