Seer, Inc. (SEER) Insider Ownership

Historic Insider Ownership Trends

As of June 06, 2026, Seer's top three insider holders are Omid Farokhzad (Ceo And Chair, 3.35Mn shares), Omid Farokhzad (Ceo And Chair, 2.12Mn shares), Robert Langer (Director, 804.52K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Terrance Mcguire - 0 215,070 11 Dec, 2025
Robert Langer - 804,525 0 09 Jul, 2025
Nicolas H Phd Roelofs - 74,996 0 09 Jul, 2025
Cathy Friedman - 173,574 0 16 Jun, 2023
Mostafa Ronaghi - 224,903 0 16 Jun, 2023
David Hallal - 355,128 0 14 Jun, 2024
Dipchand Nishar - 69,704 0 09 Jul, 2025
Omid Farokhzad Ceo And Chair 3,349,064 0 19 Feb, 2026
Omead Ostadan President Coo 378,238 0 01 Jun, 2022
Rachel E. Haurwitz - 87,615 0 14 Jun, 2024
Elona Kogan Chief Legal Officer 273,142 0 23 Feb, 2024
David R. Horn President Cfo 501,262 0 19 Feb, 2026
Isaac Ro - 41,000 0 03 Sep, 2025
Meeta Gulyani - 107,543 0 09 Jul, 2025
Scott D Thomas Chief Commercial Officer 95,532 0 19 May, 2023

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
18 Feb, 2026 David R. Horn Class A Common Stock D 7,743 $1.99 501,262 D S
18 Feb, 2026 Omid Farokhzad Class A Common Stock D 24,385 $1.99 3,349,064 D S
03 Feb, 2026 David R. Horn Class A Common Stock A 79,000 $0.00 509,005 D A
03 Feb, 2026 Omid Farokhzad Class A Common Stock A 697,162 $0.00 3,373,449 D A
03 Feb, 2026 David R. Horn Employee Stock Option (right to buy) A 119,000 $0.00 119,000 D A
03 Feb, 2026 Omid Farokhzad Employee Stock Option (right to buy) A 512,000 $0.00 512,000 D A
09 Dec, 2025 Omid Farokhzad Class A Common Stock A 1,438,057 - 2,676,287 D C
09 Dec, 2025 Terrance Mcguire Class A Common Stock A 4,088 - 215,070 I C
09 Dec, 2025 Omid Farokhzad Class A Common Stock A 2,117,138 - 2,117,138 I C
09 Dec, 2025 Omid Farokhzad Class B Common Stock D 1,438,057 $0.00 0 D C
09 Dec, 2025 Omid Farokhzad Class B Common Stock D 2,117,138 $0.00 0 I C
09 Dec, 2025 Terrance Mcguire Class B Common Stock D 4,088 $0.00 0 I C
19 Nov, 2025 David R. Horn Class A Common Stock D 6,797 $1.97 436,802 D S
19 Nov, 2025 Omid Farokhzad Class A Common Stock D 33,838 $1.97 1,238,230 D S
02 Sep, 2025 Isaac Ro Class A Common Stock A 41,000 $0.00 41,000 D A
02 Sep, 2025 Isaac Ro Stock Option (right to buy) A 61,000 $0.00 61,000 D A
20 Aug, 2025 David R. Horn Class A Common Stock D 6,827 $2.04 436,802 D S
20 Aug, 2025 Omid Farokhzad Class A Common Stock D 33,992 $2.04 1,272,068 D S
07 Jul, 2025 Terrance Mcguire Class A Common Stock A 20,500 $0.00 112,066 D A
07 Jul, 2025 Meeta Gulyani Class A Common Stock A 20,500 $0.00 107,543 D A