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DST Investments XXI, L.P.

CIK 1770474 · last filed 2026-08-13

DST Investments XXI, L.P. is a corporate insider who has filed 1 SEC Form 4 insider transactions across 1 company since 2026. The most recent filing shows the insider sold $334.3M of CHYM on Aug 13, 2026. Across all open-market trades the lifetime net is −$334.3M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $185.0M across reported positions. The firm reports its address in Grand Cayman, E9. 9 SEC filings were submitted jointly with DST Global Advisors Ltd.

"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

$185.01M

Companies

1

Total Filings

1

Lifetime Open-Market Net

-$334.33M

Filer Profile

Reported Address
C/O TRIDENT TRUST COMPANY (CAYMAN) LTD.
ONE CAPITAL PLACE 847
GRAND CAYMAN, E9 KY1 1103
Phone
44-207-3181180
State of Incorporation
Cayman Islands
Related Filers
DST Global Advisors Ltd — 9 joint filings, latest 2026-08-28
DST Global VI, L.P. — 9 joint filings, latest 2026-08-28
DST Global VII, L.P. — 9 joint filings, latest 2026-08-28
DST Managers VI Ltd — 9 joint filings, latest 2026-08-28
DSTG VI Investments, L.P. — 9 joint filings, latest 2026-08-28
DSTG VII Investments-1, L.P. — 9 joint filings, latest 2026-08-28
DSTG VII Investments-4, L.P. — 9 joint filings, latest 2026-08-28
DST Global IV Co-Invest, L.P. — 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
CHYM 10%+ Owner 6,848,587 $27.02 $185.01M -$334.33M 1 2026-08-13

Recent Filings

1 filing
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
2026-08-13 CHYM Sell (S) −10,413,250 -$334.33M 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.