Nasdaq · CIK 0001726445
SEER Seer, Inc.
Insider trading from SEC Form 4. Last filing Aug 19, 2026. Close $2.19 on Oct 9, 2026, +35% from the 52-week low and -8% from the high.
In brief
Seer, Inc. (SEER) has 33 SEC Form 4 filings on file from 9 insiders, the latest filed on Aug 19, 2026. In the last 90 days insiders made 0 open-market buys worth $0 and 1 open-market sell worth $15k, net -$15k.
14 open-market trades have been scored at SEER. The newest: David R. Horn (PRESIDENT & CFO) sold $15k of stock on Aug 18, 2026, filed Aug 19, 2026, scored 22 (weak). The largest of the 14 shown: Omid Farokhzad (CEO AND CHAIR) sold $70k on May 20, 2025, scored 41 (moderate). 2 insiders sold within 14 days of each other around Feb 18, 2026.
2 Form 144 notices of planned sales are on file, the latest filed Jul 8, 2026.
Last 90 days
Price and insider trades, last year
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
Open-market buys and sells at Seer, Inc., scored.
| Score | Insider | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 22Weak | David R. Horn PRESIDENT & CFO sell | $15k 7,309 shares | -1% | +25% from low-15% from high | |
| 0Weak | Dipchand Nishar director sell | $23k 10,660 shares | -15% | +35% from low-8% from high | |
| 22Weak | David R. Horn PRESIDENT & CFO sell | $12k 7,303 shares | -1% | +1% from low-29% from high | |
| 40Moderate | Omid Farokhzad CEO AND CHAIR sell | $49k 24,385 shares | -1% | +22% from low-15% from high | |
| 30Weak | David R. Horn PRESIDENT & CFO sell | $15k 7,743 shares | -2% | +22% from low-15% from high | |
| 41Moderate | Omid Farokhzad CEO AND CHAIR sell | $67k 33,838 shares | -3% | +20% from low-22% from high | |
| 30Weak | David R. Horn PRESIDENT & CFO sell | $13k 6,797 shares | -2% | +20% from low-22% from high | |
| 41Moderate | Omid Farokhzad CEO AND CHAIR sell | $69k 33,992 shares | -3% | +27% from low-20% from high | |
| 30Weak | David R. Horn PRESIDENT & CFO sell | $14k 6,827 shares | -2% | +27% from low-20% from high | |
| 13Weak | Dipchand Nishar director sell | $63k 30,253 shares | -38% | +29% from low-19% from high | |
| 41Moderate | Omid Farokhzad CEO AND CHAIR sell | $70k 33,663 shares | -3% | +30% from low-18% from high | |
| 30Weak | David R. Horn PRESIDENT & CFO sell | $14k 6,760 shares | -2% | +30% from low-18% from high | |
| 33Weak | Omid Farokhzad CEO AND CHAIR sell | $18k 8,068 shares | -1% | - | |
| 30Weak | David R. Horn PRESIDENT & CFO sell | $7,940 3,550 shares | -1% | - |
Planned sales
Form 144 notices filed before a sale of restricted or control stock, newest first. The sale itself usually reaches a Form 4 within days. All planned sales
| Filed | Seller | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Jul 8, 2026 | DIPCHAND NISHAR Director | 10,660 0.02% of outstanding | $23k | Jul 8, 2026 | none |
| Jun 13, 2025 | DIPCHAND NISHAR Director | 30,253 0.05% of outstanding | $63k | Jun 13, 2025 | none |
Transactions
The newest 50 of 52 rows filed, every code.
| Date | Insider | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Aug 18, 2026 | David R. Horn PRESIDENT & CFO | SOpen-market sale Class A Common Stock | -7,309 | $2.03 | $15k | 486,650 | Aug 19, 2026 |
| Jul 28, 2026 | Robert Langer director | AGrant or award Class A Common Stock | +16,500 | $0.00 | $0 | 821,025 | Jul 30, 2026 |
| Jul 28, 2026 | Meeta Gulyani director | AGrant or award Class A Common Stock | +16,500 | $0.00 | $0 | 124,043 | Jul 30, 2026 |
| Jul 28, 2026 | Terrance McGuire director | AGrant or award Class A Common Stock | +16,500 | $0.00 | $0 | 128,566 | Jul 30, 2026 |
| Jul 28, 2026 | Dipchand Nishar director | AGrant or award Class A Common Stock | +16,500 | $0.00 | $0 | 75,544 | Jul 30, 2026 |
| Jul 28, 2026 | Isaac Ro director | AGrant or award Class A Common Stock | +12,375 | $0.00 | $0 | 53,375 | Jul 30, 2026 |
| Jul 28, 2026 | Nicolas H Roelofs PHD director | AGrant or award Class A Common Stock | +16,500 | $0.00 | $0 | 91,496 | Jul 30, 2026 |
| Jul 28, 2026 | Dipchand Nishar director | AGrant or award Stock Option (right to buy)derivative | +25,000 | $0.00 | $0 | 25,000 | Jul 30, 2026 |
| Jul 28, 2026 | Isaac Ro director | AGrant or award Stock Option (right to buy)derivative | +18,750 | $0.00 | $0 | 18,750 | Jul 30, 2026 |
| Jul 28, 2026 | Robert Langer director | AGrant or award Stock Option (right to buy)derivative | +25,000 | $0.00 | $0 | 25,000 | Jul 30, 2026 |
| Jul 28, 2026 | Meeta Gulyani director | AGrant or award Stock Option (right to buy)derivative | +25,000 | $0.00 | $0 | 25,000 | Jul 30, 2026 |
| Jul 28, 2026 | Nicolas H Roelofs PHD director | AGrant or award Stock Option (right to buy)derivative | +25,000 | $0.00 | $0 | 25,000 | Jul 30, 2026 |
| Jul 28, 2026 | Terrance McGuire director | AGrant or award Stock Option (right to buy)derivative | +25,000 | $0.00 | $0 | 25,000 | Jul 30, 2026 |
| Jul 8, 2026 | Dipchand Nishar director | SOpen-market sale Class A Common Stock10b5-1 | -10,660 | $2.18 | $23k | 59,044 | Jul 10, 2026 |
| May 20, 2026 | David R. Horn PRESIDENT & CFO | SOpen-market sale Class A Common Stock | -7,303 | $1.69 | $12k | 493,959 | May 21, 2026 |
| May 8, 2026 | Anthony R. Bazarko Chief Commercial Officer | AGrant or award Class A Common Stock | +75,000 | - | - | 75,000 | May 11, 2026 |
| May 8, 2026 | Anthony R. Bazarko Chief Commercial Officer | AGrant or award Employee Stock Option (right to buy)derivative | +225,000 | $0.00 | $0 | 225,000 | May 11, 2026 |
| Feb 18, 2026 | Omid Farokhzad CEO AND CHAIR | SOpen-market sale Class A Common Stock | -24,385 | $1.99 | $49k | 3,349,064 | Feb 19, 2026 |
| Feb 18, 2026 | David R. Horn PRESIDENT & CFO | SOpen-market sale Class A Common Stock | -7,743 | $1.99 | $15k | 501,262 | Feb 19, 2026 |
| Feb 3, 2026 | Omid Farokhzad CEO AND CHAIR | AGrant or award Class A Common Stock | +697,162 | $0.00 | $0 | 3,373,449 | Feb 5, 2026 |
| Feb 3, 2026 | David R. Horn PRESIDENT & CFO | AGrant or award Class A Common Stock | +79,000 | $0.00 | $0 | 509,005 | Feb 5, 2026 |
| Feb 3, 2026 | David R. Horn PRESIDENT & CFO | AGrant or award Employee Stock Option (right to buy)derivative | +119,000 | $0.00 | $0 | 119,000 | Feb 5, 2026 |
| Feb 3, 2026 | Omid Farokhzad CEO AND CHAIR | AGrant or award Employee Stock Option (right to buy)derivative | +512,000 | $0.00 | $0 | 512,000 | Feb 5, 2026 |
| Dec 9, 2025 | Omid Farokhzad CEO AND CHAIR | CConversion Class A Common Stock | +1,438,057 | - | - | 2,676,287 | Dec 11, 2025 |
| Dec 9, 2025 | Terrance McGuire director | CConversion Class A Common Stockindirect: See footnote | +4,088 | - | - | 215,070 | Dec 11, 2025 |
| Dec 9, 2025 | Omid Farokhzad CEO AND CHAIR | CConversion Class A Common Stockindirect: See footnote | +2,117,138 | - | - | 2,117,138 | Dec 11, 2025 |
| Dec 9, 2025 | Omid Farokhzad CEO AND CHAIR | CConversion Class B Common Stockderivative | -1,438,057 | $0.00 | $0 | 0 | Dec 11, 2025 |
| Dec 9, 2025 | Omid Farokhzad CEO AND CHAIR | CConversion Class B Common Stockderivativeindirect: See footnote | -2,117,138 | $0.00 | $0 | 0 | Dec 11, 2025 |
| Dec 9, 2025 | Terrance McGuire director | CConversion Class B Common Stockderivativeindirect: See footnote | -4,088 | $0.00 | $0 | 0 | Dec 11, 2025 |
| Nov 19, 2025 | Omid Farokhzad CEO AND CHAIR | SOpen-market sale Class A Common Stock | -33,838 | $1.97 | $67k | 1,238,230 | Nov 21, 2025 |
| Nov 19, 2025 | David R. Horn PRESIDENT & CFO | SOpen-market sale Class A Common Stock | -6,797 | $1.97 | $13k | 436,802 | Nov 21, 2025 |
| Sep 2, 2025 | Isaac Ro director | AGrant or award Class A Common Stock | +41,000 | $0.00 | $0 | 41,000 | Sep 3, 2025 |
| Sep 2, 2025 | Isaac Ro director | AGrant or award Stock Option (right to buy)derivative | +61,000 | $0.00 | $0 | 61,000 | Sep 3, 2025 |
| Aug 20, 2025 | Omid Farokhzad CEO AND CHAIR | SOpen-market sale Class A Common Stock | -33,992 | $2.04 | $69k | 1,272,068 | Aug 21, 2025 |
| Aug 20, 2025 | David R. Horn PRESIDENT & CFO | SOpen-market sale Class A Common Stock | -6,827 | $2.04 | $14k | 436,802 | Aug 21, 2025 |
| Jul 7, 2025 | Meeta Gulyani director | AGrant or award Class A Common Stock | +20,500 | $0.00 | $0 | 107,543 | Jul 9, 2025 |
| Jul 7, 2025 | Robert Langer director | AGrant or award Class A Common Stock | +20,500 | $0.00 | $0 | 804,525 | Jul 9, 2025 |
| Jul 7, 2025 | Terrance McGuire director | AGrant or award Class A Common Stock | +20,500 | $0.00 | $0 | 112,066 | Jul 9, 2025 |
| Jul 7, 2025 | Dipchand Nishar director | AGrant or award Class A Common Stock | +20,500 | $0.00 | $0 | 69,704 | Jul 9, 2025 |
| Jul 7, 2025 | Nicolas H Roelofs PHD director | AGrant or award Class A Common Stock | +17,083 | $0.00 | $0 | 74,996 | Jul 9, 2025 |
| Jul 7, 2025 | Meeta Gulyani director | AGrant or award Stock Option (right to buy)derivative | +30,500 | $0.00 | $0 | 30,500 | Jul 9, 2025 |
| Jul 7, 2025 | Robert Langer director | AGrant or award Stock Option (right to buy)derivative | +30,500 | $0.00 | $0 | 30,500 | Jul 9, 2025 |
| Jul 7, 2025 | Dipchand Nishar director | AGrant or award Stock Option (right to buy)derivative | +30,500 | $0.00 | $0 | 30,500 | Jul 9, 2025 |
| Jul 7, 2025 | Nicolas H Roelofs PHD director | AGrant or award Stock Option (right to buy)derivative | +25,416 | $0.00 | $0 | 25,416 | Jul 9, 2025 |
| Jul 7, 2025 | Terrance McGuire director | AGrant or award Stock Option (right to buy)derivative | +30,500 | $0.00 | $0 | 30,500 | Jul 9, 2025 |
| Jun 13, 2025 | Dipchand Nishar director | SOpen-market sale Class A Common Stock10b5-1 | -30,253 | $2.08 | $63k | 49,204 | Jun 16, 2025 |
| May 20, 2025 | Omid Farokhzad CEO AND CHAIR | SOpen-market sale Class A Common Stock | -33,663 | $2.08 | $70k | 1,306,060 | May 22, 2025 |
| May 20, 2025 | David R. Horn PRESIDENT & CFO | SOpen-market sale Class A Common Stock | -6,760 | $2.08 | $14k | 443,629 | May 22, 2025 |
| Feb 18, 2025 | Omid Farokhzad CEO AND CHAIR | FTax withholding Class A Common Stock | -88,494 | $2.30 | $204k | 1,339,723 | Feb 20, 2025 |
| Feb 18, 2025 | David R. Horn PRESIDENT & CFO | FTax withholding Class A Common Stock | -26,572 | $2.30 | $61k | 450,389 | Feb 20, 2025 |
Insiders
Everyone who has filed a Form 4 here.
- Anthony R. BazarkoChief Commercial Officer
- Omid FarokhzadCEO AND CHAIR
- Meeta Gulyanidirector
- David R. HornPRESIDENT & CFO
- Robert Langerdirector
- Terrance McGuiredirector
- Dipchand Nishardirector
- Isaac Rodirector
- Nicolas H Roelofs PHDdirector
Questions about SEER
Answered from the filings on this page, as of the latest one.
Are insiders buying SEER?
As of Aug 19, 2026, SEC Form 4 filings show 0 open-market buys worth $0 by 0 insiders and 1 open-market sell worth $15k by 1 insider at Seer, Inc. in the last 90 days, net -$15k. Only purchases (code P) and sales (code S) count; grants, option exercises and tax withholding do not.
Who was the last insider to trade SEER on the open market?
David R. Horn (PRESIDENT & CFO) sold $15k of SEER on Aug 18, 2026 and filed the Form 4 on Aug 19, 2026. InsiderTell scored 22 (weak).
How many insiders file Form 4 at Seer, Inc.?
9 people have filed a Form 4 at Seer, Inc., among them Anthony R. Bazarko (Chief Commercial Officer), Omid Farokhzad (CEO AND CHAIR), Meeta Gulyani (director). Officers, directors and holders of more than 10% of a share class must report their trades within two business days.
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.