Integrated Surgical Systems Inc

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Integrated Surgical Systems Inc
TickerAREN
CIK #0000894871
CUSIP02366A101
SectorLife Sciences - Surgical & Medical Instruments & Apparatus
Address401 Wilshire Blvd, Suite 1020, Santa Monica,, CA 90401
Source [EDGAR]
Reg D Offering (Form D) Filed Raised Terms
Themaven Inc 2021-06-03 19.7 M Exemption: 506(b) · Remaining: $5,295,000 · Duration: One year or less · Revenue: Decline to Disclose
CIK Filing 2011 - 2026
[0000894871] 10-K
[0000894871] 10-Q
[0000894871] 3
[0000894871] 4
[0000894871] 5
[0000894871] 8-K
[0000894871] D
[0000894871] SC 13D
[0000894871] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Heckman James Charles Jr Arena Group Holdings Inc [2024-01-25] 1.2
Simplify Inventions LLC Arena Group Holdings Inc [2023-12-07] 0.0
Warlock Partners LLC Arena Group Holdings Inc [2023-05-03] 9.63
B Riley Asset Management LLC Arena Group Holdings Inc [2023-02-15] 0.07
180 Degree Capital Corp /NY/ Themaven Inc [2022-01-05] 8.7
Athletes First LLC Themaven Inc [2021-09-08] 5.7
TCS Capital Management LLC Themaven Inc [2021-07-09] 0.0
B Riley Financial Inc Themaven Inc [2020-11-27] 4.99
180 Degree Capital Corp /NY/ Themaven Inc [2020-08-31] 0.3
Strome Mark E Themaven Inc [2018-06-26] 19.4
Heckman James Charles Jr Integrated Surgical Systems Inc [2016-11-28] 18.57
Form 3/4/5 Filer 2011 - 2026
Integrated Surgical Systems Inc
Edmondson Paul Taylor
Allred Herbert Hunt
Randall Cavitt
Petersmarck Lynn Marie
Lee Laura Anne
Petzel Christopher
Strome Mark E
Weintraub Michael Lawrence
Silverstein Sara
Wait Geoffrey
Smith Douglas Baker
Fowler Christopher
Zola Carlo
Simplify Inventions LLC
Bhargava Manoj
Frankl Jason
Heckman James Charles Jr
Pierce Brock Jeffrey
Roundtable LLC Series 1111
Warlock Partners LLC
Sims Todd D
BRC Group Holdings Inc
Riley Bryant R
BRF Investments LLC
B Riley Principal Investments LLC
FBR Capital Markets & Co
Levinsohn Ross
Kraft Andrew Q
Barrett Henry Robertson
Zimak Avi
Shribman Daniel
Marchisotto Jill
Christoforatos Spiridon
Semler Eric
BRC Partners Management GP LLC
B Riley Capital Management LLC
BRC Partners Opportunity Fund LP
BRF Finance Co LLC
Bailey David F
Sen Baishali
Fichthorn John
Jacobs Joshua
180 Degree Capital Corp /NY/
BR Dialectic Capital Management LLC
Dialectic Antithesis Partners LP
Sornsin William Carrier Jr
Mills Peter B
Joldersma Benjamin Gary
Strome Mezzanine Fund LP
Marlett Christopher A
Levande Robert
Heimbigner Martin L
Tomczak Michael J
Schuman Gary Alan
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Edmondson Paul Taylor
Common Stock
2025-07-24 Tax withheld 672 $6.07 4,079
Randall Cavitt
Common Stock
2025-05-30 Grant 10,482 $0.00
Petersmarck Lynn Marie
Common Stock
2025-05-30 Grant 10,482 $0.00
Allred Herbert Hunt
Common Stock
2025-05-30 Grant 10,482 $0.00
Edmondson Paul Taylor
Common Stock
2025-05-07 Tax withheld 858 $5.10 4,376
Edmondson Paul Taylor
Employee stock option (right to buy) · derivative
2025-03-03 Grant 400,000 $0.00
Lee Laura Anne
Common Stock
2025-02-12 Sell 55,780 $1.40 78,092
Randall Cavitt
Common Stock
2025-02-12 Buy 55,780 $1.40 78,092
Randall Cavitt
Common Stock
2025-02-03 Buy 25,010 $1.35 33,764
Petzel Christopher
Common Stock
2025-02-03 Sell 25,010 $1.35 33,764
Edmondson Paul Taylor
Common Stock
2025-01-30 Tax withheld 781 $1.26 984
Petzel Christopher
Common Stock
2025-01-17 Sell 25,000 $1.23 30,750
Randall Cavitt
Common Stock
2025-01-17 Buy 25,000 $1.23 30,750
Edmondson Paul Taylor
Common Stock
2024-12-05 Tax withheld 1,109 $1.46 1,619
Strome Mark E
Common Stock
2024-11-15 Sell 217,574 $1.71 372,052
Randall Cavitt
Common Stock
2024-08-30 Grant 10,357 $0.90 9,321
Randall Cavitt
Common Stock
2024-08-28 Grant 42,074 $0.85 35,763
Edmondson Paul Taylor
Common Stock
2024-08-28 Sell 84,148 $0.85 71,526
Silverstein Sara
Common Stock
2024-08-28 Grant 42,074 $0.85 35,763
Silverstein Sara
Common Stock
2024-08-26 Grant 17,805 $0.83 14,778
showing 20 of 200 most recent transactions
13F Ownership Over TimeHoldersShares Held
2026-03-31 56 3,648,819
2025-12-31 55 3,890,801
2025-09-30 53 4,001,595
2025-06-30 48 3,704,697
2025-03-31 25 1,257,503
2024-12-31 27 1,197,725
2024-09-30 18 888,687
2024-06-30 22 955,971
2024-03-31 25 1,294,959
2023-12-31 28 1,626,105
2023-09-30 28 10,161,018
2023-06-30 34 10,204,127
Form 13F Holdings
Firm Period DFND Voting Shares
DLK Investment Management LLC [2026-06-30] SOLE 13,800 13,800
Alaska Retirement Management Board [2026-06-30] SOLE 8,914 8,914
IFP Advisors LLC [2026-06-30] SOLE 1 1
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