Insider · CIK 0001891299
Zhenya Lindgardt
Files at SERA (SERA PROGNOSTICS, INC.). First filing Nov 12, 2024, latest Sep 11, 2026.
In brief
Zhenya Lindgardt files SEC Form 4 as CEO and director at SERA (SERA PROGNOSTICS, INC.). Since Nov 12, 2024, Zhenya Lindgardt has reported 0 open-market buys worth $0 and 15 open-market sells worth $733k, the latest filed on Sep 11, 2026.
A track record needs three past buys with six months of prices behind them; Zhenya Lindgardt has 0, so none is measured yet.
The newest scored trade: sold $14k of SERA on Sep 10, 2026, filed Sep 11, 2026, scored 40 (moderate). In the last 12 months: 0 buys worth $0 and 8 sells worth $291k.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
SERA: SERA PROGNOSTICS, 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 |
|---|---|---|---|---|---|
| 40Moderate | SERA PROGNOSTICS, INC. | $14k 7,022 shares | -1% | +29% from low-45% from high | |
| 46Moderate | SERA PROGNOSTICS, INC. | $40k 20,139 shares | -2% | +26% from low-46% from high | |
| 40Moderate | SERA PROGNOSTICS, INC. | $14k 6,990 shares | -1% | +29% from low-53% from high | |
| 46Moderate | SERA PROGNOSTICS, INC. | $43k 20,755 shares | -2% | +43% from low-48% from high | |
| 47Moderate | SERA PROGNOSTICS, INC. | $49k 25,612 shares | -3% | +23% from low-57% from high | |
| 40Moderate | SERA PROGNOSTICS, INC. | $14k 4,155 shares | -1% | +128% from low-61% from high | |
| 49Moderate | SERA PROGNOSTICS, INC. | $86k 28,215 shares | -4% | +106% from low-65% from high | |
| 45Moderate | SERA PROGNOSTICS, INC. | $30k 11,594 shares | -1% | +71% from low-71% from high | |
| 40Moderate | SERA PROGNOSTICS, INC. | $10k 3,246 shares | -0% | +106% from low-65% from high | |
| 48Moderate | SERA PROGNOSTICS, INC. | $67k 21,158 shares | -3% | +108% from low-65% from high | |
| 40Moderate | SERA PROGNOSTICS, INC. | $22k 8,571 shares | -1% | +66% from low-72% from high | |
| 46Moderate | SERA PROGNOSTICS, INC. | $38k 26,386 shares | -3% | 0% from low-83% from high | |
| 40Moderate | SERA PROGNOSTICS, INC. | $23k 9,406 shares | -1% | 0% from low-76% from high | |
| 52Moderate | SERA PROGNOSTICS, INC. | $194k 26,224 shares | -3% | - | |
| 49Moderate | SERA PROGNOSTICS, INC. | $88k 12,075 shares | -1% | - |
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 |
|---|---|---|---|---|---|
| Sep 11, 2026 | SERA Sera Prognostics, Inc. | 7,022 0.02% of outstanding | $14k | Sep 10, 2026 | $54k |
| Sep 9, 2026 | SERA Sera Prognostics, Inc. | 20,139 0.05% of outstanding | $40k | Sep 8, 2026 | $57k |
| Jun 15, 2026 | SERA Sera Prognostics, Inc. | 6,990 0.02% of outstanding | $14k | Jun 11, 2026 | $49k |
| Jun 10, 2026 | SERA Sera Prognostics, Inc. | 20,755 0.05% of outstanding | $43k | Jun 9, 2026 | $49k |
| Mar 12, 2026 | SERA Sera Prognostics, Inc. | 22,639 0.06% of outstanding | $43k | Mar 10, 2026 | $14k |
| Mar 12, 2026 | SERA Sera Prognostics, Inc. | 2,973 0.01% of outstanding | $6,068 | Mar 11, 2026 | $57k |
| Dec 11, 2025 | SERA Sera Prognostics, Inc. | 4,155 0.01% of outstanding | $14k | Dec 10, 2025 | $126k |
| Dec 10, 2025 | SERA Sera Prognostics, Inc. | 28,215 0.07% of outstanding | $86k | Dec 9, 2025 | $107k |
| Nov 12, 2025 | SERA Sera Prognostics, Inc. | 11,594 0.03% of outstanding | $30k | Nov 10, 2025 | $77k |
| Sep 12, 2025 | SERA Sera Prognostics, Inc. | 3,246 0.01% of outstanding | $10k | Sep 11, 2025 | $88k |
| Sep 9, 2025 | SERA Sera Prognostics, Inc. | 21,158 0.06% of outstanding | $67k | Sep 9, 2025 | $60k |
| Aug 11, 2025 | SERA Sera Prognostics, Inc. | 8,571 0.02% of outstanding | $22k | Aug 8, 2025 | $61k |
| Jun 11, 2025 | SERA Sera Prognostics, Inc. | 23,042 0.06% of outstanding | $33k | Jun 9, 2025 | $23k |
| Jun 11, 2025 | SERA Sera Prognostics, Inc. | 3,344 0.01% of outstanding | $4,964 | Jun 10, 2025 | $56k |
| May 9, 2025 | SERA Sera Prognostics, Inc. | 9,406 0.03% of outstanding | $23k | May 8, 2025 | $187k |
| Mar 10, 2025 | SERA Sera Prognostics, Inc. | 29,722 0.09% of outstanding | $123k | Mar 7, 2025 | $259k |
| Feb 14, 2025 | SERA Sera Prognostics, Inc. | 14,075 0.04% of outstanding | $64k | Feb 12, 2025 | $283k |
| Dec 12, 2024 | SERA Sera Prognostics, Inc. | 26,224 0.08% of outstanding | $194k | Dec 10, 2024 | $278k |
| Nov 13, 2024 | SERA Sera Prognostics, Inc. | 12,075 0.04% of outstanding | $88k | Nov 11, 2024 | $190k |
Transactions
Every row this insider has filed, 21 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 10, 2026 | SERA SERA PROGNOSTICS, INC. | SOpen-market sale Class A Common Stock | -7,022 | $2.00 | $14k | 837,848 | 32 d ago |
| Sep 8, 2026 | SERA SERA PROGNOSTICS, INC. | SOpen-market sale Class A Common Stock | -20,139 | $2.00 | $40k | 844,870 | 34 d ago |
| Jun 11, 2026 | SERA SERA PROGNOSTICS, INC. | SOpen-market sale Class A Common Stock | -6,990 | $2.01 | $14k | 865,009 | Jun 15, 2026 |
| Jun 9, 2026 | SERA SERA PROGNOSTICS, INC. | SOpen-market sale Class A Common Stock | -20,755 | $2.08 | $43k | 871,999 | Jun 10, 2026 |
| Mar 12, 2026 | SERA SERA PROGNOSTICS, INC. | AGrant or award Class A Common Stock | +154,440 | $0.00 | $0 | 892,754 | Mar 13, 2026 |
| Mar 12, 2026 | SERA SERA PROGNOSTICS, INC. | AGrant or award Stock Option (right to buy)derivative | +239,442 | $0.00 | $0 | 239,442 | Mar 13, 2026 |
| Mar 10, 2026 | SERA SERA PROGNOSTICS, INC. | SOpen-market sale Class A Common Stock | -22,639 | $1.90 | $43k | 741,287 | Mar 12, 2026 |
| Mar 11, 2026 | SERA SERA PROGNOSTICS, INC. | SOpen-market sale Class A Common Stock | -2,973 | $2.04 | $6,065 | 738,314 | Mar 12, 2026 |
| Dec 10, 2025 | SERA SERA PROGNOSTICS, INC. | SOpen-market sale Class A Common Stock | -4,155 | $3.31 | $14k | 763,926 | Dec 11, 2025 |
| Dec 9, 2025 | SERA SERA PROGNOSTICS, INC. | SOpen-market sale Class A Common Stock | -28,215 | $3.04 | $86k | 768,081 | Dec 10, 2025 |
| Nov 10, 2025 | SERA SERA PROGNOSTICS, INC. | SOpen-market sale Class A Common Stock | -11,594 | $2.62 | $30k | 796,296 | Nov 12, 2025 |
| Sep 11, 2025 | SERA SERA PROGNOSTICS, INC. | SOpen-market sale Class A Common Stock | -3,246 | $3.13 | $10k | 807,890 | Sep 12, 2025 |
| Sep 9, 2025 | SERA SERA PROGNOSTICS, INC. | SOpen-market sale Class A Common Stock | -21,158 | $3.15 | $67k | 811,136 | Sep 9, 2025 |
| Aug 8, 2025 | SERA SERA PROGNOSTICS, INC. | SOpen-market sale Class A Common Stock | -8,571 | $2.54 | $22k | 832,294 | Aug 11, 2025 |
| Jun 9, 2025 | SERA SERA PROGNOSTICS, INC. | SOpen-market sale Class A Common Stock | -23,042 | $1.43 | $33k | 844,209 | Jun 11, 2025 |
| Jun 10, 2025 | SERA SERA PROGNOSTICS, INC. | SOpen-market sale Class A Common Stock | -3,344 | $1.48 | $4,949 | 840,865 | Jun 11, 2025 |
| May 8, 2025 | SERA SERA PROGNOSTICS, INC. | SOpen-market sale Class A Common Stock | -9,406 | $2.44 | $23k | 867,251 | May 9, 2025 |
| Dec 10, 2024 | SERA SERA PROGNOSTICS, INC. | SOpen-market sale Class A Common Stock | -26,224 | $7.41 | $194k | 793,534 | Dec 12, 2024 |
| Nov 11, 2024 | SERA SERA PROGNOSTICS, INC. | SOpen-market sale Class A Common Stock | -12,075 | $7.32 | $88k | 819,758 | Nov 12, 2024 |
| Nov 6, 2023 | SERA SERA PROGNOSTICS, INC. | AGrant or award Class A Common Stock | +800,000 | $0.00 | $0 | 800,000 | Nov 8, 2023 |
| Nov 6, 2023 | SERA SERA PROGNOSTICS, INC. | AGrant or award Class A Common Stock | +175,000 | $0.00 | $0 | 975,000 | Nov 8, 2023 |
Questions about Zhenya Lindgardt
Answered from the filings on this page, as of the latest one.
Is Zhenya Lindgardt buying or selling?
In the last 12 months Zhenya Lindgardt reported 0 open-market buys worth $0 and 8 open-market sells worth $291k on SEC Form 4; the latest was sold $14k of SERA on Sep 10, 2026. Grants, option exercises and tax withholding are not counted.
How did Zhenya Lindgardt's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Zhenya Lindgardt has 0.
Where does Zhenya Lindgardt file Form 4?
Zhenya Lindgardt has filed Form 4 at SERA (SERA PROGNOSTICS, INC.) as Chief Executive Officer. 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.