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Maryann T. Mannen

CIK 1408964 · Chairman, President & CEO · last filed 2026-09-14

Maryann T. Mannen is a Chairman, President & CEO who has filed 294 SEC Form 4 insider transactions across 5 companies since 2007. The most recent filing, for PRU, was dated Sep 14, 2026. Across all open-market trades the lifetime net is −$2.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $91.5M across reported positions. 180 SEC filings were submitted jointly with FMC TECHNOLOGIES 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

$91.52M

Companies

5

Total Filings

294

Lifetime Open-Market Net

-$2.24M

Filer Profile

Reported Address
C/O MARATHON PETROLEUM CORPORATION
539 SOUTH MAIN ST
FINDLAY, OH 45840
Formerly Known As
Seaman Maryann T. (2007–2015)
Related Filers
FMC TECHNOLOGIES INC — 180 joint filings, latest 2017-01-17
Marathon Petroleum Corp — 14 joint filings, latest 2026-08-04
PRUDENTIAL FINANCIAL INC — 3 joint filings, latest 2026-06-15
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
PRU Director — $119.57 — $0 3 2026-09-14
MPC Chairman, President & CEO 110,939 $393.29 $43.63M $0 13 2026-08-04
OC Director 27,410 $123.80 $3.39M $0 91 2026-04-13
MPLX Chairman, President & CEO 171,868 $57.10 $9.81M $0 6 2026-03-03
FTI EVP & Chief Financial Officer 487,881 $71.09 $34.68M -$2.24M 181 2020-03-11

Recent Filings

294 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
2026-09-14 PRU Grant (A) — $0 EDGAR
2026-08-04 MPC Tax (F) −908 -$283.1K EDGAR
2026-06-15 PRU Grant (A) — $0 EDGAR
2026-05-14 PRU Grant (A) — $0 EDGAR
2026-04-13 OC Grant (A) +163 $18.7K EDGAR
2026-03-03 MPC Mixed +11,300 -$818.2K EDGAR
2026-03-03 OC Grant (A) +412 $50.3K EDGAR
2026-03-03 MPLX Mixed +39,597 -$782.9K EDGAR
2026-01-23 OC Grant (A) +146 $18.3K EDGAR
2025-11-10 OC Grant (A) +597 $62.4K EDGAR
Showing 1–10 of 294
Page 1 of 30
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.