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325 Capital Master Fund LP

CIK 1972759 · last filed 2026-03-23

325 Capital Master Fund LP is a corporate insider who has filed 10 SEC Form 4 insider transactions across 3 companies since 2023. The most recent filing shows the insider sold $43.6M of APEI on Mar 23, 2026. Across all open-market trades the lifetime net is −$93.5M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $50.7M across reported positions. The firm reports its address in Grand Cayman, E9. 47 SEC filings were submitted jointly with 325 Capital GP, LLC.

"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

$50.73M

Companies

3

Total Filings

10

Lifetime Open-Market Net

-$93.46M

Filer Profile

Reported Address
190 ELGIN AVENUE
GEORGE TOWN
GRAND CAYMAN, E9 KY1-9008
Phone
(212) 376-5325
Formerly Known As
325 Master Fund LP (2023–2024)
Related Filers
325 Capital GP, LLC — 47 joint filings, latest 2026-07-02
325 CAPITAL LLC — 46 joint filings, latest 2026-07-02
DANIEL M. FRIEDBERG — 46 joint filings, latest 2026-07-02
Anil K Shrivastava — 44 joint filings, latest 2026-07-02
Michael David Braner — 35 joint filings, latest 2026-07-02
Apollo S3 Advisors, L.P. — same reported address
Boyu Capital Opportunities Master Fund — same reported address
CEMAC Sponsor LP — same reported address
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
APEI 1,009,514 $44.94 $45.37M -$93.46M 5 2026-03-23
MSAIW 10%+ Owner 4,944,430 $0.03 $145.4K $0 2 2025-12-23
TACT Director 1,011,789 $5.16 $5.22M $0 3 2025-05-05

Recent Filings

10 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
2026-03-23 APEI Sell (S) −802,560 -$43.63M EDGAR
2026-03-18 APEI Sell (S) −921,295 -$51.19M EDGAR
2025-12-23 MSAIW Grant (A) +68,147,330 $0 EDGAR
2025-10-28 MSAIW Grant (A) +13,941,784 $0 EDGAR
2025-05-27 APEI Grant (A) +22,512 $0 EDGAR
2025-05-05 TACT Exer (M) +10,200 $0 EDGAR
2025-03-03 TACT Mixed +19,650 $0 EDGAR
2024-08-29 APEI Buy (P) +86,358 $1.35M EDGAR
2023-05-25 APEI Grant (A) +87,666 $548.9K EDGAR
2023-05-08 TACT Exer (M) +10,200 $0 EDGAR
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.