Insider · CIK 0001391400
Earl H Nemser
chairofficerdirector
Files at IBKR (Interactive Brokers Group, Inc.). First filing Feb 6, 2024, latest Jan 28, 2026.
In brief
Earl H Nemser files SEC Form 4 as chair and director at IBKR (Interactive Brokers Group, Inc.). Since Feb 6, 2024, Earl H Nemser has reported 0 open-market buys worth $0 and 14 open-market sells worth $77M, the latest filed on Jan 28, 2026.
A track record needs three past buys with six months of prices behind them; Earl H Nemser has 0, so none is measured yet.
The newest scored trade: sold $12M of IBKR on Jan 26, 2026, filed Jan 28, 2026, scored 65 (notable). In the last 12 months: 0 buys worth $0 and 2 sells worth $31M.
Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 14
$0 bought, $77M sold
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
IBKR: Interactive Brokers Group, Inc.
IBKROct 12, 2026 · close 87.89
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 65Notable | IBKRsell Interactive Brokers Group, Inc. | $12M 155,000 shares | -100% | +110% from low-3% from high | |
| 65Notable | IBKRsell Interactive Brokers Group, Inc. | $19M 245,000 shares | -61% | +115% from low0% from high | |
| 30Weak | Interactive Brokers Group, Inc. | $3.4M 53,900 shares | -12% | +109% from low-5% from high | |
| 35Weak | Interactive Brokers Group, Inc. | $14M 201,686 shares | -31% | +121% from low0% from high | |
| 25Weak | Interactive Brokers Group, Inc. | $1.7M 25,682 shares | -4% | +116% from low-0% from high | |
| 25Weak | Interactive Brokers Group, Inc. | $1.6M 25,682 shares | -4% | +109% from low-4% from high | |
| 25Weak | Interactive Brokers Group, Inc. | $1.6M 25,682 shares | -4% | +112% from low-2% from high | |
| 25Weak | Interactive Brokers Group, Inc. | $1.8M 27,482 shares | -4% | +114% from low-1% from high | |
| 25Weak | Interactive Brokers Group, Inc. | $2.6M 39,786 shares | -10% | +117% from low0% from high | |
| 20Weak | IBKRsell Interactive Brokers Group, Inc. | $6,590 100 shares | -0% | +114% from low-0% from high | |
| 25Weak | Interactive Brokers Group, Inc. | $1.1M 10,000 shares | -8% | +48% from low0% from high | |
| 38Weak | Interactive Brokers Group, Inc. | $1.6M 15,000 shares | -11% | +47% from low0% from high | |
| 43Moderate | Interactive Brokers Group, Inc. | $7.6M 75,000 shares | -36% | +42% from low0% from high | |
| 43Moderate | Interactive Brokers Group, Inc. | $9.6M 100,000 shares | -32% | +35% from low0% from high |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Jan 22, 2026 | IBKR Interactive Brokers Group, Inc. | 400,000 0.09% of outstanding | $30M | Jan 22, 2026 | none |
| Aug 28, 2025 | IBKR Interactive Brokers Group, Inc. | 400,000 0.09% of outstanding | $25M | Jul 26, 2025 | $26M |
| Feb 2, 2024 | IBKR Interactive Brokers Group, Inc. | 200,000 0.19% of outstanding | $18M | Feb 2, 2024 | none |
Transactions
The newest 50 of 65 rows this insider has filed.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Jul 31, 2026 | IBKR Interactive Brokers Group, Inc. | AGrant or award Class A common stockindirect: By EN Holdings LLC | +803,568 | $87.99 | $71M | 803,568 | Aug 4, 2026 |
| May 8, 2026 | IBKR Interactive Brokers Group, Inc. | FTax withholding Class A common stock | -22,486 | $84.42 | $1.9M | 429,344 | May 28, 2026 |
| Jan 26, 2026 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC | -60,882 | $75.83 | $4.6M | 94,118 | Jan 28, 2026 |
| Jan 26, 2026 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC | -30,817 | $76.72 | $2.4M | 63,301 | Jan 28, 2026 |
| Jan 26, 2026 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC | -3,101 | $77.98 | $242k | 60,200 | Jan 28, 2026 |
| Jan 27, 2026 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC | -39,731 | $75.07 | $3.0M | 20,469 | Jan 28, 2026 |
| Jan 27, 2026 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC | -20,469 | $75.75 | $1.6M | 0 | Jan 28, 2026 |
| Jan 22, 2026 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC | -100,000 | $76.81 | $7.7M | 300,000 | Jan 26, 2026 |
| Jan 1, 2026 | IBKR Interactive Brokers Group, Inc. | AGrant or award Class A common stock | +389 | $64.31 | $25k | 451,830 | Jan 26, 2026 |
| Jan 23, 2026 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC | -84,935 | $77.65 | $6.6M | 215,065 | Jan 26, 2026 |
| Jan 23, 2026 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC | -60,065 | $78.14 | $4.7M | 155,000 | Jan 26, 2026 |
| Dec 31, 2025 | IBKR Interactive Brokers Group, Inc. | AGrant or award Class A common stock | +23,240 | $0.00 | $0 | 451,052 | Jan 7, 2026 |
| Dec 31, 2025 | IBKR Interactive Brokers Group, Inc. | AGrant or award Class A common stock | +389 | $64.31 | $25k | 451,441 | Jan 7, 2026 |
| Aug 14, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC10b5-1 | -33,379 | $63.86 | $2.1M | 420,521 | Aug 15, 2025 |
| Aug 14, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC10b5-1 | -20,521 | $64.22 | $1.3M | 400,000 | Aug 15, 2025 |
| Aug 12, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC10b5-1 | -153,000 | $67.39 | $10M | 502,586 | Aug 14, 2025 |
| Aug 12, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC10b5-1 | -41,086 | $67.88 | $2.8M | 461,500 | Aug 14, 2025 |
| Aug 13, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC10b5-1 | -4,600 | $63.75 | $293k | 456,900 | Aug 14, 2025 |
| Aug 13, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC10b5-1 | -200 | $64.19 | $13k | 456,700 | Aug 14, 2025 |
| Aug 13, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC10b5-1 | -200 | $66.09 | $13k | 456,500 | Aug 14, 2025 |
| Aug 13, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC10b5-1 | -2,400 | $66.77 | $160k | 454,100 | Aug 14, 2025 |
| Aug 13, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC10b5-1 | -200 | $67.20 | $13k | 453,900 | Aug 14, 2025 |
| Aug 8, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC10b5-1 | -10,200 | $65.60 | $669k | 671,068 | Aug 12, 2025 |
| Aug 8, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC10b5-1 | -2,641 | $65.94 | $174k | 668,427 | Aug 12, 2025 |
| Aug 11, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC10b5-1 | -12,841 | $66.09 | $849k | 655,586 | Aug 12, 2025 |
| Aug 6, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC10b5-1 | -12,641 | $63.47 | $802k | 694,309 | Aug 8, 2025 |
| Aug 6, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC10b5-1 | -200 | $64.16 | $13k | 694,109 | Aug 8, 2025 |
| Aug 7, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC10b5-1 | -12,400 | $63.94 | $793k | 681,709 | Aug 8, 2025 |
| Aug 7, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC10b5-1 | -441 | $64.35 | $28k | 681,268 | Aug 8, 2025 |
| Aug 4, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC10b5-1 | -12,841 | $64.54 | $829k | 719,791 | Aug 6, 2025 |
| Aug 5, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC10b5-1 | -11,041 | $63.64 | $703k | 708,750 | Aug 6, 2025 |
| Aug 5, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC10b5-1 | -1,800 | $64.84 | $117k | 706,950 | Aug 6, 2025 |
| Jul 31, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC10b5-1 | -12,441 | $66.18 | $823k | 747,673 | Aug 4, 2025 |
| Jul 31, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC10b5-1 | -2,200 | $66.71 | $147k | 745,473 | Aug 4, 2025 |
| Aug 1, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC10b5-1 | -1,200 | $62.79 | $75k | 744,273 | Aug 4, 2025 |
| Aug 1, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC10b5-1 | -7,441 | $63.94 | $476k | 736,832 | Aug 4, 2025 |
| Aug 1, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC10b5-1 | -3,200 | $64.71 | $207k | 733,632 | Aug 4, 2025 |
| Aug 1, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC10b5-1 | -1,000 | $65.66 | $66k | 732,632 | Aug 4, 2025 |
| Jul 30, 2025 | IBKR Interactive Brokers Group, Inc. | AGrant or award Class A common stockindirect: by EN Holdings LLC | +400,000 | $66.22 | $26M | 760,114 | Aug 1, 2025 |
| Jul 30, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC10b5-1 | -32,386 | $66.32 | $2.1M | 367,514 | Aug 1, 2025 |
| Jul 30, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC10b5-1 | -7,400 | $66.64 | $493k | 360,114 | Aug 1, 2025 |
| Jul 28, 2025 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stockindirect: by EN Holdings LLC | -100 | $65.90 | $6,590 | 399,900 | Jul 30, 2025 |
| Jun 23, 2025 | IBKR Interactive Brokers Group, Inc. | GGift Class A common stock | -500 | $0.00 | $0 | 427,812 | Jun 24, 2025 |
| May 9, 2025 | IBKR Interactive Brokers Group, Inc. | FTax withholding Class A common stock | -5,178 | $185.60 | $961k | 107,078 | Jun 4, 2025 |
| May 9, 2025 | IBKR Interactive Brokers Group, Inc. | FTax withholding Class A common stock10b5-1 | -5,178 | $185.60 | $961k | 107,078 | Jun 3, 2025 |
| Dec 31, 2024 | IBKR Interactive Brokers Group, Inc. | AGrant or award Class A common stock | +7,763 | $0.00 | $0 | 112,114 | Jan 7, 2025 |
| Dec 31, 2024 | IBKR Interactive Brokers Group, Inc. | AGrant or award Class A common stock | +142 | $176.67 | $25k | 112,256 | Jan 7, 2025 |
| Feb 21, 2024 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stock10b5-1 | -5,000 | $104.86 | $524k | 113,770 | Feb 23, 2024 |
| Feb 22, 2024 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stock10b5-1 | -5,000 | $107.01 | $535k | 108,770 | Feb 23, 2024 |
| Feb 15, 2024 | IBKR Interactive Brokers Group, Inc. | SOpen-market sale Class A common stock10b5-1 | -2,100 | $102.02 | $214k | 131,670 | Feb 20, 2024 |
50 of 65 rows shown.
Questions about Earl H Nemser
Answered from the filings on this page, as of the latest one.
Is Earl H Nemser buying or selling?
In the last 12 months Earl H Nemser reported 0 open-market buys worth $0 and 2 open-market sells worth $31M on SEC Form 4; the latest was sold $12M of IBKR on Jan 26, 2026. Grants, option exercises and tax withholding are not counted.
How did Earl H Nemser's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Earl H Nemser has 0.
Where does Earl H Nemser file Form 4?
Earl H Nemser has filed Form 4 at IBKR (Interactive Brokers Group, Inc.) as Vice Chairman. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.