Robert J Bass

Board Member · Groupon, Inc.

Rank #17,463 SEC EDGAR (United States) ↗ Files from United States

Details

Member of the boardBusiness & Professional ServicesGRPNSEC CIK 0001552681

Computed from SEC EDGAR filings and closing prices — not copied from any wealth ranking. Dataset . How we calculate this.

Disclosed holdings
$2.8M
1-day change
▲ 0.17%
Positions on file
4
issuers disclosed in Forms 3/4/5 and Schedules 13D/G

Disclosed holdings over time 53 weekly points

What the 3 currently disclosed positions would have been worth at each week’s closing price. A rising line means the shares got more valuable, not that this person bought more.

How the line is built

Share counts are as last reported to the SEC and held constant; only prices move.

2025-09-05$1.9M – $3.7M2026-09-04

Insider activity Jun 10, 2024 – Dec 8, 2025

Robert J Bass is recorded in filings to the U.S. SEC via EDGAR as member of the board, and reported 17 transactions between Jun 10, 2024 and Dec 8, 2025. The buy and sell totals below count only codes P, S.

Why the other codes are excluded

Share awards (A), shares withheld to pay tax (F), option exercises (M) and gifts (G) also appear in the table, but they are consequences of a pay package or a private transfer, not a decision to buy or sell on the open market. Counting them would turn this into a compensation ranking.

Open-market buys (code P)
$211.1K
8 purchases on file priced rows only
Open-market sales (code S)
$148.7K
2 sales on file priced rows only
All reported transactions
17
every code, including awards and exercises
Pattern
Net buyer in the final 12 months of the window
last 12 months of the window

Events from filings

Detected automatically in the filings linked below. Each headline is built from the numbers in those filings, not written by a model. Newest first; events older than 45 days stay listed and are marked as older.

3 insiders bought Lucky Strike Entertainment Corp (LUCK) shares worth $239,004 between Aug 28, 2026 and Sep 10, 2026

Cluster buying

3 different insiders made 3 open-market purchases of this company’s shares within a short window. Each row below is one reported trade.

3 insiders bought Lucky Strike Entertainment Corp (LUCK) shares worth $239,004 between Aug 28, 2026 and Sep 10, 2026
Date Insider Transaction Shares Price Value Filing
Aug 28, 2026 Sandeep Mathrani P Open-market purchase 9,350 held after: 9,350 $6.41 $59,934 SEC filing ↗
Sep 9, 2026 Thomas F Shannon P Open-market purchase 30,000 held after: 3,144,000 $5.86 $175,800 SEC filing ↗
Sep 10, 2026 Robert J Bass P Open-market purchase 600 held after: 51,848 $5.45 $3,270 SEC filing ↗

Total of the rows above: $239,004, in the currency the filings report.

Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.

Robert J Bass bought 3,760 Blackstone Secured Lending Fund (BXSL) shares for $100,129 on Oct 6, 2025

Unusual change in a direct holding

Flagged because the change that day in the shares this person holds directly was unusually large compared with their own earlier changes. The rows below are the open-market trades reported that day; under each share count is the balance the filing reports after that line. At least one price in this event could not be cross-checked against other trades in the same security, so read the total with extra care.

Robert J Bass bought 3,760 Blackstone Secured Lending Fund (BXSL) shares for $100,129 on Oct 6, 2025
Date Insider Transaction Shares Price Value Filing
Oct 6, 2025 Robert J Bass P Open-market purchase 3,760 held after: 21,167 $26.63 $100,129 SEC filing ↗

Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.

Robert J Bass sold 3,055 Groupon, Inc. (GRPN) shares for $96,660 on Aug 12, 2025

Large trade for this person

Flagged because this trade was large compared with this person’s own earlier open-market trades in the same currency — not because it is large in absolute terms. A trade that is routine for one insider can be flagged for another. At least one price in this event could not be cross-checked against other trades in the same security, so read the total with extra care.

Robert J Bass sold 3,055 Groupon, Inc. (GRPN) shares for $96,660 on Aug 12, 2025
Date Insider Transaction Shares Price Value Filing
Aug 12, 2025 Robert J Bass S Open-market sale 3,055 held after: 101,676 $31.64 $96,660 SEC filing ↗

Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.

Robert J Bass bought 1,983 Blackstone Private Credit Fund (NONE) shares for $49,991 on Jun 19, 2025

Large trade for this person

Flagged because this trade was large compared with this person’s own earlier open-market trades in the same currency — not because it is large in absolute terms. A trade that is routine for one insider can be flagged for another. At least one price in this event could not be cross-checked against other trades in the same security, so read the total with extra care.

Robert J Bass bought 1,983 Blackstone Private Credit Fund (NONE) shares for $49,991 on Jun 19, 2025
Date Insider Transaction Shares Price Value Filing
Jun 19, 2025 Robert J Bass P Open-market purchase 1,983 held after: 8,011 $25.21 $49,991 SEC filing ↗

Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.

Robert J Bass bought 1,626 Blackstone Secured Lending Fund (BXSL) shares for $50,048 on May 13, 2025

Large trade for this person

Flagged because this trade was large compared with this person’s own earlier open-market trades in the same currency — not because it is large in absolute terms. A trade that is routine for one insider can be flagged for another. At least one price in this event could not be cross-checked against other trades in the same security, so read the total with extra care.

Robert J Bass bought 1,626 Blackstone Secured Lending Fund (BXSL) shares for $50,048 on May 13, 2025
Date Insider Transaction Shares Price Value Filing
May 13, 2025 Robert J Bass P Open-market purchase 1,626 held after: 17,403 $30.78 $50,048 SEC filing ↗

Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.

Reported transactions

Price 0.00 is a real reported figure on gifts (G) and share awards (A) — not a missing number. The 18 most recent rows are grouped into 18 lines by date, company and transaction type — open a line to see every lot with its own source link.

How to read this list

Every row is one line of one Form 4 or Form 5, with the filing it came from. Where the record carries no price at all we leave the cell empty instead of guessing one.

The shares and money on a grouped line add up only the lots listed inside that line, and only when every one of them carries the figure. Where a group mixes more than one reporting currency we leave the money blank rather than convert — no source publishes the rate that conversion would need.

  1. Lucky Strike Entertainment Corp LUCK P Open-market purchase 600 shares $3.3K at $5.45 SEC filing ↗
  2. Groupon, Inc. GRPN A Grant or awardnot a buy/sell decisionreported at zero 13,140 shares $0 at $0.00 SEC filing ↗
  3. Groupon, Inc. GRPN M Option exercise or conversionnot a buy/sell decisionreported at zero 6,174 shares $0 at $0.00 SEC filing ↗
  4. Lucky Strike Entertainment Corp LUCK P Open-market purchase 745 shares $6.0K at $8.10 SEC filing ↗
  5. Blackstone Secured Lending Fund BXSL P Open-market purchase 2,095 shares $49.9K at $23.80 SEC filing ↗
  6. Lucky Strike Entertainment Corp LUCK P Open-market purchase 520 shares $4.4K at $8.47 SEC filing ↗
  7. Blackstone Secured Lending Fund BXSL P Open-market purchase 3,760 shares $100.1K at $26.63 SEC filing ↗
  8. Groupon, Inc. GRPN S Open-market sale 3,055 shares $96.7K at $31.64 SEC filing ↗
  9. Blackstone Private Credit Fund NONE P Open-market purchase 1,983 shares $50.0K at $25.21 SEC filing ↗
  10. Groupon, Inc. GRPN A Grant or awardnot a buy/sell decision 12,325 shares $398.5K at $32.33 SEC filing ↗
  11. Blackstone Secured Lending Fund BXSL P Open-market purchase 1,626 shares $50.0K at $30.78 SEC filing ↗
  12. Lucky Strike Entertainment Corp LUCK P Open-market purchase 167 shares $1.6K at $9.80 SEC filing ↗
  13. Lucky Strike Entertainment Corp LUCK A Grant or awardnot a buy/sell decisionreported at zero 10,727 shares $0 at $0.00 SEC filing ↗
  14. Bowlero Corp. BOWL P Open-market purchase 140 shares $1.7K at $11.96 SEC filing ↗
  15. Bowlero Corp. BOWL P Open-market purchase 140 shares $1.7K at $12.17 SEC filing ↗
  16. Groupon, Inc. GRPN S Open-market sale 4,583 shares $52.0K at $11.35 SEC filing ↗
  17. Groupon, Inc. GRPN A Grant or awardnot a buy/sell decisionreported at zero 12,325 shares $0 at $0.00 SEC filing ↗
  18. Bowlero Corp. BOWL P Open-market purchase 120 shares $1.5K at $12.72 SEC filing ↗

Disclosed holdings

Shares is the amount on the form; value is that amount times the closing price shown. Rows with no closing price are left blank, so they may add up to less than the headline figure.

What is not counted here

Each row is one filing you can open. Private companies, real estate, bonds and crypto are not in SEC insider filings and are therefore not counted here.

Equity positions disclosed to the SEC, with the source filing behind each row.
Issuer Ticker Security Shares Close Value Form Reported Filing
Groupon, Inc. GRPN Common Stock 101,676 $18.87 $1.9M 4 EDGAR ↗
Blackstone Secured Lending Fund BXSL Common Shares of Beneficial Interest 21,167 $24.72 $523.2K 4 EDGAR ↗
Lucky Strike Entertainment Corp LUCK Class A Common Stock 50,503 $6.29 $317.7K 4 EDGAR ↗
Blackstone Private Credit Fund Class I Common Shares of Beneficial Interest 8,011 4 EDGAR ↗

Other insiders at the same companies

People who also file with the SEC at a company where Robert J Bass reports shares.

Sharing a filing does not mean they work together day to day — it means both names appear on the same issuer’s insider record.

Sources

The filings linked in the tables above are the sources for every figure on this page.

Think a number here is wrong? Open the linked filing and compare — how to report it.

Profile record last refreshed Sep 8, 2026.