David R Epstein

CIK 1445826 · CEO · last filed 2026-08-05

David R Epstein is a CEO who has filed 104 SEC Form 4 insider transactions across 9 companies since 2008. The most recent filing shows the insider sold $16.1K of TEM on Aug 5, 2026. Across all open-market trades the lifetime net is −$3.4M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $2.0M across reported positions. 24 SEC filings were submitted jointly with Tempus AI, 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.

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Disclosed Exposure

$2.01M

Companies

9

Total Filings

104

Lifetime Open-Market Net

-$3.41M

Filer Profile

Reported Address
1125 ISLAND DRIVE
DELRAY BEACH, FL 33483
Related Filers
Tempus AI, Inc. — 24 joint filings, latest 2026-08-05
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
TEM Director 31,094 $64.66 $2.01M -$294.1K 17 2026-08-05
Seagen Inc. (SGEN) Delisted CEO 0 $228.74 $0 -$2.26M 4 2023-12-15
SNTI Director $0.34 $0 1 2022-07-15
Evelo Biosciences, Inc. (EVLO) Delisted Director 4,697 $0.00 $0 $120.7K 19 2022-06-30
Axcella Health Inc. (AXLA) Delisted Director 8,390 $0.40 $3.4K $786.7K 29 2022-06-03
Rubius Therapeutics, Inc. (RUBY) Delisted Director 4,720,012 $0.08 $391.8K -$1.77M 10 2022-05-13
INTERNATIONAL FLAVORS & FRAGRANCES INC (IFFT) Delisted Director $47.56 $0 5 2020-11-04
IFF Director $86.46 $0 9 2018-05-03
Molecular Insight Pharmaceuticals, Inc. (MIPI) Delisted Director $0 1 2008-09-24

Recent Filings

104 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
2026-08-05 TEM Sell (S) −370 -$16.1K EDGAR
2026-08-03 TEM Notice (144) −990 -$43.4K EDGAR
2026-06-03 TEM Sell (S) −250 -$12.3K EDGAR
2026-05-26 TEM Grant (A) +5,913 $0 EDGAR
2026-03-04 TEM Sell (S) −250 -$12.7K EDGAR
2026-03-02 TEM Notice (144) −870 -$46.3K EDGAR
2026-02-04 TEM Sell (S) −370 -$22.0K EDGAR
2025-12-03 TEM Sell (S) −250 -$18.9K EDGAR
2025-11-05 TEM Sell (S) −370 -$33.3K EDGAR
2025-11-03 TEM Notice (144) −990 -$89.0K 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.