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CSS LLC/IL

CIK 1103646 · last filed 2025-12-31

CSS LLC/IL is a corporate insider who has filed 45 SEC Form 4 insider transactions across 4 companies since 2021. The most recent filing shows the insider sold $124.8K of SWZ on Dec 31, 2025. Across all open-market trades the lifetime net is +$2.3M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $10.1M across reported positions. The firm reports its address in Chicago, IL. 3 SEC filings were submitted jointly with Clayton A Struve.

"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

$10.15M

Companies

4

Total Filings

45

Lifetime Open-Market Net

$2.32M

Filer Profile

Reported Address
1 NORTH WACKER DRIVE
SUITE 3075
CHICAGO, IL 60606
Phone
(312) 542-8515
State of Incorporation
IL
Related Filers
Clayton A Struve — 3 joint filings, latest 2013-01-02
BKF CAPITAL GROUP INC — 2 joint filings, latest 2001-02-13
Liberty Broadband Corp — 1 joint filings, latest 2025-08-21
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
SWZ 10%+ Owner 1,694,267 $5.99 $10.15M -$347.2K 3 2025-12-31
AMAZE HOLDINGS, INC. (VINE) Delisted 10%+ Owner 556,384 $0.57 $319.9K -$290.6K 8 2023-09-18
Cohen & Steers MLP Income & Energy Opportunity Fund (MIE) Delisted 10%+ Owner 2,958,566 $3.85 $11.39M $1.31M 13 2021-08-02
Duff & Phelps Select MLP & Midstream Energy Fund Inc. (DSE) Delisted 10%+ Owner 492,472 $9.49 $4.67M $1.65M 18 2021-06-22

Recent Filings

45 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
2025-12-31 SWZ Sell (S) −19,968 -$124.8K EDGAR
2025-12-29 SWZ Sell (S) −28,567 -$178.7K EDGAR
2025-12-17 SWZ Sell (S) −7,000 -$43.6K EDGAR
2023-09-18 AMAZE HOLDINGS, INC. (VINE) Delisted Sell (S) −229,159 -$91.4K EDGAR
2023-09-08 AMAZE HOLDINGS, INC. (VINE) Delisted Sell (S) −30,000 -$15.1K EDGAR
2023-09-01 AMAZE HOLDINGS, INC. (VINE) Delisted Sell (S) −149,167 -$72.2K EDGAR
2023-07-14 AMAZE HOLDINGS, INC. (VINE) Delisted Sell (S) −10,000 -$6.6K EDGAR
2023-07-05 AMAZE HOLDINGS, INC. (VINE) Delisted Sell (S) −140,000 -$102.8K EDGAR
2023-05-10 AMAZE HOLDINGS, INC. (VINE) Delisted Sell (S) −2,000 -$1.0K EDGAR
2023-05-08 AMAZE HOLDINGS, INC. (VINE) Delisted Sell (S) −100 -$53 EDGAR
Showing 1–10 of 45
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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.