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JONATHAN D ROOT

CIK 1225480 · last filed 2026-07-17

JONATHAN D ROOT is a corporate insider who has filed 74 SEC Form 4 insider transactions across 9 companies since 2007. The most recent filing, for EWTX, was dated Jul 17, 2026. Across all open-market trades the lifetime net is +$9.5M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $1.83B across reported positions. 67 SEC filings were submitted jointly with PHILIP M YOUNG.

"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

$1.83B

Companies

9

Total Filings

74

Lifetime Open-Market Net

$9.53M

Filer Profile

Reported Address
1460 EL CAMINO REAL STE 100
MENLO PARK, CA 94025
Related Filers
PHILIP M YOUNG — 67 joint filings, latest 2018-11-13
IRWIN FEDERMAN — 48 joint filings, latest 2018-11-13
STEVEN M KRAUSZ — 40 joint filings, latest 2018-11-13
PRESIDIO MANAGEMENT GROUP VIII L L C — 39 joint filings, latest 2012-09-25
DAVID E LIDDLE — 38 joint filings, latest 2018-11-13
Christopher J Rust — 38 joint filings, latest 2012-09-25
Casey M Tansey — 36 joint filings, latest 2022-08-03
Winston Su-Kee Fu — 27 joint filings, latest 2012-09-25
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
EWTX Director 15,625 $41.05 $641.4K $250.0K 7 2026-07-17
OMDA Director 191,877 $20.69 $3.97M $0 8 2026-07-07
CARL Director 716,221 $14.76 $10.57M $7.00M 2 2026-06-22
Inari Medical, Inc. (NARI) Delisted Director 0 $79.97 $0 $4.81M 14 2025-02-19
eFFECTOR Therapeutics, Inc. (EFTRW) Delisted 10%+ Owner 129,365 $0.00 $78 -$4.37M 14 2022-08-03
ARS Pharmaceuticals, Inc. (SBTX) Delisted Director 95,588 $5.87 $561.1K $2.04M 6 2022-06-13
GWRE 10%+ Owner 11,878,173 $152.89 $1.82B $0 1 2012-01-30
MXL 10%+ Owner 3,378 $84.32 $284.8K -$201.4K 2 2011-05-26
Altus Pharmaceuticals Inc. (ALTU) Delisted Director — $10.12 — $0 3 2008-06-13

Recent Filings

74 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
2026-07-17 EWTX Grant (A) — $0 EDGAR
2026-07-07 OMDA Grant (A) +820 $0 EDGAR
2026-06-22 CARL Grant (A) +13,698 $0 EDGAR
2026-06-18 OMDA Grant (A) +10,882 $0 EDGAR
2026-04-07 OMDA Grant (A) +882 $0 EDGAR
2026-01-07 OMDA Grant (A) +915 $0 EDGAR
2025-12-04 OMDA Other (J) −4,550,278 $0 EDGAR
2025-10-07 OMDA Grant (A) +657 $0 EDGAR
2025-07-24 CARL Mixed +6,126,072 $7.00M EDGAR
2025-07-08 OMDA Grant (A) +237 $0 EDGAR
Showing 1–10 of 74
Page 1 of 8
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.