Insider · CIK 0002050172
Harold Bernstein
Files at MAZE (Maze Therapeutics, Inc.). First filing Dec 31, 2025, latest Oct 2, 2026.
In brief
Harold Bernstein files SEC Form 4 as president at MAZE (Maze Therapeutics, Inc.). Since Dec 31, 2025, Harold Bernstein has reported 0 open-market buys worth $0 and 15 open-market sells worth $9.5M, the latest filed on Oct 2, 2026.
A track record needs three past buys with six months of prices behind them; Harold Bernstein has 0, so none is measured yet.
The newest scored trade: sold $435k of MAZE on Oct 1, 2026, filed Oct 2, 2026, scored 37 (weak), under a 10b5-1 plan. In the last 12 months: 0 buys worth $0 and 15 sells worth $9.5M.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
MAZE: Maze Therapeutics, Inc.
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 |
|---|---|---|---|---|---|
| 37Weak | Maze Therapeutics, Inc. | $435k 16,141 shares | -100% | +19% from low-49% from high | |
| 48Moderate | Maze Therapeutics, Inc. | $255k 9,705 shares | -100% | +75% from low-49% from high | |
| 68Notable | Maze Therapeutics, Inc. | $270k 10,295 shares | -51% | +78% from low-48% from high | |
| 37Weak | Maze Therapeutics, Inc. | $426k 16,141 shares | -100% | +77% from low-49% from high | |
| 30Weak | Maze Therapeutics, Inc. | $446k 16,142 shares | -100% | +109% from low-47% from high | |
| 37Weak | Maze Therapeutics, Inc. | $437k 14,609 shares | -100% | +159% from low-42% from high | |
| 36Weak | Maze Therapeutics, Inc. | $381k 14,853 shares | -100% | +146% from low-51% from high | |
| 29Weak | Maze Therapeutics, Inc. | $393k 15,000 shares | -100% | +192% from low-49% from high | |
| 37Weak | Maze Therapeutics, Inc. | $442k 15,000 shares | -100% | +284% from low-44% from high | |
| 41Moderate | Maze Therapeutics, Inc. | $736k 15,000 shares | -100% | +534% from low-7% from high | |
| 45Moderate | Maze Therapeutics, Inc. | $1.5M 30,000 shares | -100% | +574% from low0% from high | |
| 41Moderate | Maze Therapeutics, Inc. | $690k 15,000 shares | -100% | +515% from low0% from high | |
| 45Moderate | Maze Therapeutics, Inc. | $1.0M 25,156 shares | -100% | +433% from low-5% from high | |
| 32Weak | Maze Therapeutics, Inc. | $196k 4,844 shares | -109% | +425% from low-7% from high | |
| 45Moderate | Maze Therapeutics, Inc. | $1.8M 45,000 shares | -100% | +436% from low-5% 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 |
|---|---|---|---|---|---|
| Oct 1, 2026 | MAZE MAZE THERAPEUTICS INC | 16,141 0.03% of outstanding | $439k | Oct 1, 2026 | $1.4M |
| Sep 4, 2026 | MAZE MAZE THERAPEUTICS, INC. | 9,705 0.02% of outstanding | $251k | Sep 4, 2026 | $1.6M |
| Sep 2, 2026 | MAZE MAZE THERAPEUTICS, INC. | 10,685 0.02% of outstanding | $284k | Sep 2, 2026 | $1.3M |
| Jul 1, 2026 | MAZE MAZE THERAPEUTICS, INC. | 46,892 0.08% of outstanding | $1.4M | Jul 1, 2026 | $774k |
| Mar 10, 2026 | MAZE MAZE THERAPEUTICS, INC. | 74,853 0.16% of outstanding | $3.4M | Mar 10, 2026 | $3.7M |
| Dec 29, 2025 | MAZE MAZE THERAPEUTICS INC | 105,000 0.22% of outstanding | $4.4M | Dec 29, 2025 | none |
Transactions
The newest 50 of 63 rows this insider has filed.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Oct 1, 2026 | MAZE Maze Therapeutics, Inc. | MOption exercise Common Stock10b5-1 | +16,141 | $10.42 | $168k | 16,141 | 11 d ago |
| Oct 1, 2026 | MAZE Maze Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -16,141 | $26.93 | $435k | 0 | 11 d ago |
| Oct 1, 2026 | MAZE Maze Therapeutics, Inc. | MOption exercise Stock Option (Right to Buy)derivative10b5-1 | -16,141 | $0.00 | $0 | 144,521 | 11 d ago |
| Sep 4, 2026 | MAZE Maze Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -9,705 | $26.22 | $255k | 0 | 35 d ago |
| Sep 2, 2026 | MAZE Maze Therapeutics, Inc. | SOpen-market sale Common Stock | -4,481 | $26.38 | $118k | 15,519 | 39 d ago |
| Sep 2, 2026 | MAZE Maze Therapeutics, Inc. | SOpen-market sale Common Stock | -625 | $27.12 | $17k | 14,894 | 39 d ago |
| Sep 3, 2026 | MAZE Maze Therapeutics, Inc. | SOpen-market sale Common Stock | -5,130 | $26.01 | $133k | 9,764 | 39 d ago |
| Sep 3, 2026 | MAZE Maze Therapeutics, Inc. | SOpen-market sale Common Stock | -59 | $25.78 | $1,521 | 9,705 | 39 d ago |
| Sep 1, 2026 | MAZE Maze Therapeutics, Inc. | MOption exercise Common Stock10b5-1 | +16,141 | $10.42 | $168k | 16,141 | 40 d ago |
| Sep 1, 2026 | MAZE Maze Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -16,141 | $26.36 | $426k | 0 | 40 d ago |
| Sep 1, 2026 | MAZE Maze Therapeutics, Inc. | MOption exercise Common Stock10b5-1 | +20,000 | $0.00 | $0 | 20,000 | 40 d ago |
| Sep 1, 2026 | MAZE Maze Therapeutics, Inc. | MOption exercise Stock Option (Right to Buy)derivative10b5-1 | -16,141 | $0.00 | $0 | 160,662 | 40 d ago |
| Sep 1, 2026 | MAZE Maze Therapeutics, Inc. | MOption exercise Restricted Stock Unitsderivative10b5-1 | -20,000 | $0.00 | $0 | 20,000 | 40 d ago |
| Aug 13, 2026 | MAZE Maze Therapeutics, Inc. | MOption exercise Common Stock10b5-1 | +16,142 | $10.42 | $168k | 16,142 | Aug 14, 2026 |
| Aug 13, 2026 | MAZE Maze Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -16,142 | $27.61 | $446k | 0 | Aug 14, 2026 |
| Aug 13, 2026 | MAZE Maze Therapeutics, Inc. | MOption exercise Stock Option (Right to Buy)derivative10b5-1 | -16,142 | $0.00 | $0 | 176,803 | Aug 14, 2026 |
| Jul 1, 2026 | MAZE Maze Therapeutics, Inc. | MOption exercise Common Stock10b5-1 | +14,609 | $10.42 | $152k | 14,609 | Jul 2, 2026 |
| Jul 1, 2026 | MAZE Maze Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -13,409 | $29.87 | $400k | 1,200 | Jul 2, 2026 |
| Jul 1, 2026 | MAZE Maze Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -1,200 | $30.34 | $36k | 0 | Jul 2, 2026 |
| Jul 1, 2026 | MAZE Maze Therapeutics, Inc. | MOption exercise Stock Option (Right to Buy)derivative10b5-1 | -14,609 | $0.00 | $0 | 192,945 | Jul 2, 2026 |
| Jun 1, 2026 | MAZE Maze Therapeutics, Inc. | MOption exercise Common Stock10b5-1 | +14,853 | $10.42 | $155k | 14,853 | Jun 3, 2026 |
| Jun 1, 2026 | MAZE Maze Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -13,253 | $25.57 | $339k | 1,600 | Jun 3, 2026 |
| Jun 1, 2026 | MAZE Maze Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -1,600 | $26.36 | $42k | 0 | Jun 3, 2026 |
| Jun 1, 2026 | MAZE Maze Therapeutics, Inc. | MOption exercise Stock Option (Right to Buy)derivative10b5-1 | -14,853 | $0.00 | $0 | 207,554 | Jun 3, 2026 |
| May 14, 2026 | MAZE Maze Therapeutics, Inc. | MOption exercise Common Stock10b5-1 | +15,000 | $10.42 | $156k | 15,000 | May 18, 2026 |
| May 14, 2026 | MAZE Maze Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -15,000 | $26.22 | $393k | 0 | May 18, 2026 |
| May 14, 2026 | MAZE Maze Therapeutics, Inc. | MOption exercise Stock Option (Right to Buy)derivative10b5-1 | -15,000 | $0.00 | $0 | 222,407 | May 18, 2026 |
| Apr 1, 2026 | MAZE Maze Therapeutics, Inc. | MOption exercise Common Stock10b5-1 | +15,000 | $10.42 | $156k | 15,000 | Apr 2, 2026 |
| Apr 1, 2026 | MAZE Maze Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -11,352 | $29.24 | $332k | 3,648 | Apr 2, 2026 |
| Apr 1, 2026 | MAZE Maze Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -3,348 | $30.06 | $101k | 300 | Apr 2, 2026 |
| Apr 1, 2026 | MAZE Maze Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -300 | $31.07 | $9,320 | 0 | Apr 2, 2026 |
| Apr 1, 2026 | MAZE Maze Therapeutics, Inc. | MOption exercise Stock Option (Right to Buy)derivative10b5-1 | -15,000 | $0.00 | $0 | 237,407 | Apr 2, 2026 |
| Mar 20, 2026 | MAZE Maze Therapeutics, Inc. | MOption exercise Common Stock10b5-1 | +15,000 | $10.42 | $156k | 15,000 | Mar 20, 2026 |
| Mar 20, 2026 | MAZE Maze Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -6,161 | $48.20 | $297k | 8,839 | Mar 20, 2026 |
| Mar 20, 2026 | MAZE Maze Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -3,795 | $49.32 | $187k | 5,044 | Mar 20, 2026 |
| Mar 20, 2026 | MAZE Maze Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -5,044 | $50.02 | $252k | 0 | Mar 20, 2026 |
| Mar 20, 2026 | MAZE Maze Therapeutics, Inc. | MOption exercise Stock Option (Right to Buy)derivative10b5-1 | -15,000 | $0.00 | $0 | 252,407 | Mar 20, 2026 |
| Mar 10, 2026 | MAZE Maze Therapeutics, Inc. | MOption exercise Common Stock10b5-1 | +30,000 | $10.42 | $313k | 30,000 | Mar 12, 2026 |
| Mar 10, 2026 | MAZE Maze Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -29,652 | $50.45 | $1.5M | 348 | Mar 12, 2026 |
| Mar 10, 2026 | MAZE Maze Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -348 | $51.02 | $18k | 0 | Mar 12, 2026 |
| Mar 10, 2026 | MAZE Maze Therapeutics, Inc. | MOption exercise Stock Option (Right to Buy)derivative10b5-1 | -30,000 | $0.00 | $0 | 267,407 | Mar 12, 2026 |
| Mar 2, 2026 | MAZE Maze Therapeutics, Inc. | AGrant or award Stock Option (Right to Buy)derivative | +48,000 | $0.00 | $0 | 48,000 | Mar 3, 2026 |
| Mar 2, 2026 | MAZE Maze Therapeutics, Inc. | AGrant or award Restricted Stock Unitsderivative | +24,000 | $0.00 | $0 | 24,000 | Mar 3, 2026 |
| Feb 2, 2026 | MAZE Maze Therapeutics, Inc. | MOption exercise Common Stock10b5-1 | +15,000 | $10.42 | $156k | 15,000 | Feb 4, 2026 |
| Feb 2, 2026 | MAZE Maze Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -600 | $44.21 | $27k | 14,400 | Feb 4, 2026 |
| Feb 2, 2026 | MAZE Maze Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -8,364 | $45.89 | $384k | 6,036 | Feb 4, 2026 |
| Feb 2, 2026 | MAZE Maze Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -5,936 | $46.37 | $275k | 100 | Feb 4, 2026 |
| Feb 2, 2026 | MAZE Maze Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -100 | $47.23 | $4,723 | 0 | Feb 4, 2026 |
| Feb 2, 2026 | MAZE Maze Therapeutics, Inc. | MOption exercise Stock Option (Right to Buy)derivative10b5-1 | -15,000 | $0.00 | $0 | 297,407 | Feb 4, 2026 |
| Jan 7, 2026 | MAZE Maze Therapeutics, Inc. | MOption exercise Common Stock10b5-1 | +25,156 | $10.42 | $262k | 25,156 | Jan 9, 2026 |
Questions about Harold Bernstein
Answered from the filings on this page, as of the latest one.
Is Harold Bernstein buying or selling?
In the last 12 months Harold Bernstein reported 0 open-market buys worth $0 and 15 open-market sells worth $9.5M on SEC Form 4; the latest was sold $435k of MAZE on Oct 1, 2026. Grants, option exercises and tax withholding are not counted.
How did Harold Bernstein's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Harold Bernstein has 0.
Where does Harold Bernstein file Form 4?
Harold Bernstein has filed Form 4 at MAZE (Maze Therapeutics, Inc.) as President, R&D & CMO. 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.