Quan Zhou

CIK 1491503 · last filed 2025-06-10

Quan Zhou is a corporate insider who has filed 11 SEC Form 4 insider transactions across 3 companies since 2011. The most recent filing, for CRCL, was dated Jun 10, 2025. Across all open-market trades the lifetime net is −$409.1M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $1.52B 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.

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Disclosed Exposure

$1.52B

Companies

3

Total Filings

11

Lifetime Open-Market Net

-$409.11M

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
CRCL 10%+ Owner 19,578,183 $77.84 $1.52B -$409.11M 1 2025-06-10
CASI Pharmaceuticals, Inc. (CASI) Delisted Director $0.28 $0 7 2022-05-26
MEMSIC Inc (BCDS) Delisted Director 4,765,223 $0 2 2012-03-05

Recent Filings

11 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2025-06-10 CRCL Mixed +117,099,234 -$409.11M EDGAR
2022-05-26 CASI Pharmaceuticals, Inc. (CASI) Delisted Grant (A) $0 EDGAR
2021-06-16 CASI Pharmaceuticals, Inc. (CASI) Delisted Grant (A) $0 EDGAR
2020-06-18 CASI Pharmaceuticals, Inc. (CASI) Delisted Grant (A) $0 EDGAR
2019-06-21 CASI Pharmaceuticals, Inc. (CASI) Delisted Grant (A) $0 EDGAR
2018-07-03 CASI Pharmaceuticals, Inc. (CASI) Delisted Grant (A) $0 EDGAR
2017-06-09 CASI Pharmaceuticals, Inc. (CASI) Delisted Grant (A) $0 EDGAR
2016-06-03 CASI Pharmaceuticals, Inc. (CASI) Delisted Grant (A) $0 EDGAR
2013-09-20 Mixed −4,765,223 -$169.0K
2012-03-05 MEMSIC Inc (BCDS) Delisted Grant (A) +15,000 $0 EDGAR
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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.