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David Zaslav

CIK 1318285 · Chief Executive Officer & Pres · last filed 2026-08-28

David Zaslav is a Chief Executive Officer & Pres who has filed 130 SEC Form 4 insider transactions across 7 companies since 2007. The most recent filing, for SIRI, was dated Aug 28, 2026. Across all open-market trades the lifetime net is −$243.9M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $211.2M across reported positions. 66 SEC filings were submitted jointly with Discovery, 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

$211.15M

Companies

7

Total Filings

130

Lifetime Open-Market Net

-$243.92M

Filer Profile

Reported Address
C/O WARNER BROS. DISCOVERY, INC.
230 PARK AVENUE SOUTH
NEW YORK, NY 10003
Related Filers
Discovery, Inc. — 66 joint filings, latest 2026-08-14
SIRIUS XM HOLDINGS INC. — 58 joint filings, latest 2026-08-28
TIVO INC — 8 joint filings, latest 2009-09-04
TELEVISA S A GRUPO — 6 joint filings, latest 2026-07-06
STARZ ENTERTAINMENT CORP /CN/ — 1 joint filings, latest 2015-11-16
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
SIRI Director 35,465 $28.56 $1.01M -$758.0K 56 2026-08-28
WBD Chief Executive Officer & Pres 7,486,201 $28.07 $210.14M -$228.82M 18 2026-08-14
TV Director — $2.19 — $0 3 2026-07-06
Warner Bros. Discovery, Inc. (DISCB) Delisted Chief Executive Officer & Pres 2,777,487 $24.45 $67.91M -$14.33M 41 2022-03-02
Strata Critical Medical, Inc. (BLDEW) Delisted Director 3,127,284 $0.18 $561.0K $0 1 2021-08-20
TIVO INC (TIVO) Delisted Director 20,900 — — $0 4 2009-09-04
Warner Bros. Discovery, Inc. (DISBD) Delisted Chief Executive Officer; Pres. — — — $0 1 2008-10-03

Recent Filings

130 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
2026-08-28 SIRI Grant (A) +60 $0 EDGAR
2026-08-14 WBD Notice (144) −194,999 -$5.46M EDGAR
2026-08-14 WBD Mixed −94,906 -$18.25M EDGAR
2026-08-13 WBD Notice (144) −773,173 -$21.66M EDGAR
2026-08-12 WBD Sell (S) −153 -$1.2K EDGAR
2026-07-15 WBD Mixed −94,906 -$38.24M EDGAR
2026-07-13 WBD Notice (144) −2,184,782 -$59.47M EDGAR
2026-07-06 TV Sell (S) — $0 EDGAR
2026-07-01 — Notice (144) −110,826 -$300.3K EDGAR
2026-06-16 WBD Tax (F) −202,881 -$5.47M EDGAR
Showing 1–10 of 130
Page 1 of 13
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.