Home

Mangrove Partners Master Fund, Ltd.

CIK 1569227 · last filed 2021-01-07

Mangrove Partners Master Fund, Ltd. is a corporate insider who has filed 24 SEC Form 4 insider transactions across 7 companies since 2015. The most recent filing shows the insider sold $440.5K of NMCI on Jan 7, 2021. Across all open-market trades the lifetime net is +$67.9M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $62.9M 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.

Loading insider history…
Disclosed Exposure

$62.93M

Companies

7

Total Filings

24

Lifetime Open-Market Net

$67.86M

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
Navios Maritime Containers L.P. (NMCI) Delisted 10%+ Owner 3,227,268 $9.23 $29.79M -$440.5K 1 2021-01-07
Ranger Oil Corp (PVAC) Delisted 10%+ Owner 1,728,736 $30.66 $53.00M -$20.66M 2 2020-06-10
Stonemor Inc. (STON) Delisted 10%+ Owner 9,415,289 $3.53 $33.24M -$2.42M 5 2020-04-06
SXC 10%+ Owner 6,620,797 $8.39 $55.55M -$33.49M 5 2017-07-07
ASTA FUNDING INC (ASFI) Delisted 10%+ Owner 471,086 — — $129.74M 8 2017-02-24
Calamos Asset Management, Inc. /DE/ (CLMS) Delisted 10%+ Owner 2,075,100 — — $1.69M 1 2017-01-25
SBH 10%+ Owner 510,408 $14.46 $7.38M -$6.55M 1 2016-08-29

Recent Filings

24 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
2021-01-07 Navios Maritime Containers L.P. (NMCI) Delisted Sell (S) −112,719 -$440.5K EDGAR
2020-06-10 Ranger Oil Corp (PVAC) Delisted Sell (S) −1,791,393 -$31.99M EDGAR
2020-04-06 Stonemor Inc. (STON) Delisted Sell (S) −514,374 -$385.6K EDGAR
2020-04-01 Stonemor Inc. (STON) Delisted Sell (S) −282,966 -$296.6K EDGAR
2020-03-30 Stonemor Inc. (STON) Delisted Sell (S) −123,297 -$131.6K EDGAR
2020-03-25 Stonemor Inc. (STON) Delisted Sell (S) −672,819 -$737.3K EDGAR
2020-03-24 Stonemor Inc. (STON) Delisted Sell (S) −672,372 -$872.4K EDGAR
2018-11-28 Ranger Oil Corp (PVAC) Delisted Buy (P) +202,500 $11.33M EDGAR
2017-07-07 SXC Sell (S) −1,594,452 -$17.64M EDGAR
2017-03-17 SXC Sell (S) −1,706,904 -$17.27M EDGAR
Showing 1–10 of 24
Page 1 of 3
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.