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Livermore
Livermore
ZHEN

AmBase Corp

ABCP
Exchange
OTC
Industry
Opeators of Nonresidential Buildings
SEC CIK
0000020639

No open-market purchases or sales by AmBase Corp insiders were filed in the last 90 days; no institution reported holding it in 13F filings for Q2 2026; no superinvestor holds it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by AmBase Corp insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
0 filings
Insiders trading
0
Net value
$0
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for AmBase Corp, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for AmBase Corp
NameTitleLast reported holdingLast filingFilings, past year
Barc Investments LLC10% Owner59,860,151May 1, 20240
Carnegie Jerry YDirector–May 1, 20240
Camac Fund, LP10% Owner4,227,465Feb 20, 20240
Bianco Richard ACEO1,420,000IndirectAug 3, 20230
Schmidt Kenneth MDirector–Jun 2, 20230

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Apr 12, 2022 (view filing)11:19 AM ETApr 111 dayCamac Fund, LP10% OwnerSSale−100.0K$0.36−$36.0K−1.1%9.19M after
Dec 27, 2022 (view filing)9:57 AM ETDec 234 daysCamac Fund, LP10% OwnerSSale−80.0K$0.11−$8.80K−0.9%9.11M after
Dec 29, 2022 (view filing)9:33 AM ETDec 272 daysCamac Fund, LP10% OwnerSSale−5.00K$0.10−$500−0.1%9.11M after
Jan 30, 2023 (view filing)2:45 PM ETJan 273 daysCamac Fund, LP10% OwnerSSale−50.0K$0.10−$5.00K−0.5%9.06M after
May 10, 2023 (view filing)1:33 PM ETMay 8-92 daysCamac Fund, LP10% OwnerSSale−30.0K$0.10−$3.00K−0.3%9.02M after2 lots
May 26, 2023 (view filing)7:29 PM ETMay 24-262 daysCamac Fund, LP10% OwnerSSale−1.01M$0.10−$101.2K−11.2%8.01M after2 lots
May 30, 2023 (view filing)May 264 daysBianco Richard ACEOPPurchase+745.0K$74,500.00+$55.5B+84.9%1.62M afterPrice outlier
Jun 9, 2023 (view filing)4:08 PM ETJun 72 daysCamac Fund, LP10% OwnerSSale−15.0K$0.15−$2.25K−65.2%7.99K after
Jun 14, 2023 (view filing)5:47 PM ETJun 12-142 daysCamac Fund, LP10% OwnerSSale−112.0K$0.15−$16.8K−1.4%7.88M after2 lots
Jun 29, 2023 (view filing)6:48 PM ETJun 272 daysCamac Fund, LP10% OwnerSSale−202.5K$0.15−$30.4K−2.6%7.68M after
Aug 29, 2023 (view filing)3:14 PM ETAug 254 daysCamac Fund, LP10% OwnerSSale−100.0K$0.15−$15.0K−1.3%7.58M after
Sep 12, 2023 (view filing)6:10 PM ETSep 84 daysCamac Fund, LP10% OwnerSSale−50.0K$0.15−$7.50K−0.7%7.53M after
Sep 26, 2023 (view filing)5:50 PM ETSep 224 daysCamac Fund, LP10% OwnerSSale−70.0K$0.1553−$10.9K−0.9%7.46M after
Oct 11, 2023 (view filing)6:49 PM ETOct 92 daysCamac Fund, LP10% OwnerSSale−50.0K$0.15−$7.50K−0.7%7.41M after
Feb 20, 2024 (view filing)7:36 PM ETFeb 15-205 daysCamac Fund, LP10% OwnerSSale−3.18M$0.2374−$754.5K−42.9%4.23M after3 lots
Mar 7, 2024 (view filing)4:03 PM ETFeb 288 daysLateBarc Investments LLC10% OwnerPPurchaseCommon Stock, par value $0.01+44.2M$0.20+$8.84M+276.3%60.2M after
May 1, 2024 (view filing)7:51 PM ETApr 301 dayBarc Investments LLC10% OwnerPPurchaseCommon Stock, par value $0.01+909.7K$0.21+$191.0K+1.5%59.9M after