Key facts
- Telesis Bio Inc. has 27 insiders with reported activity on this page.
- No net insider buy/sell flow is currently reported for the last year.
- Recent transaction rows are not currently available.
Insider Transactions Reported by 27 Insiders of Telesis Bio Inc.
- Location
- San Diego, CA
Change
- No meaningful buy/sell imbalance is currently visible in the one-year window.
- Activity will update as new Forms 3/4/5 are filed.
Research use
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsInsider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 26 May 2025.
Buys
$0
Shares: 0
Insiders: 0
Sells
$0
Shares: 0
Insiders: 0
Net
$0
Shares: 0
Insiders: 0
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Telesis Bio Inc. executives and other stock owners filed with the SEC include:
Top shareholders of Telesis Bio Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| Northpond Ventures GP, LLC |
3/4/5
|
Director, 10%+ Owner |
—
mixed-class rows
|
8,462,743
mixed-class rows
|
$338,509,700 | — | 05 Jun 2023 | |
| GATTACA Mining LLC |
3/4/5
|
10%+ Owner |
—
class O/S missing
|
6,000,000
|
$16,956,600 | — | 22 Jun 2021 | |
| DANAHER CORP /DE/ |
3/4/5
|
10%+ Owner |
—
class O/S missing
|
2,294,157
|
$6,483,517 | — | 22 Jun 2021 | |
| Todd Robert Nelson |
3/4/5
|
President & CEO, Director, 10%+ Owner |
—
mixed-class rows
|
2,171,505
mixed-class rows
|
$2,591,999 | — | 27 Feb 2024 | |
| BroadOak Fund IV, LLC |
3/4/5
|
10%+ Owner |
—
mixed-class rows
|
1,289,411
mixed-class rows
|
$2,000,000 | — | 05 Jun 2023 | |
| William Snider |
3/4/5
|
Director, 10%+ Owner |
—
mixed-class rows
|
1,289,411
mixed-class rows
|
$2,000,000 | — | 05 Jun 2023 | |
| Northpond Ventures II GP, LLC |
3/4/5
|
10%+ Owner |
—
class O/S missing
|
468,750
|
$1,324,734 | — | 22 Jun 2021 | |
| Paul M. Meister |
3/4/5
|
Director, 10%+ Owner |
—
mixed-class rows
|
270,676
mixed-class rows
|
$305,982 | — | 06 Jun 2023 | |
| Gregory J. Herrema |
3/4/5
|
Director |
—
mixed-class rows
|
215,039
mixed-class rows
|
$97,509 | — | 01 May 2024 | |
| Annette Tumolo |
3/4/5
|
Director |
—
mixed-class rows
|
188,131
mixed-class rows
|
$83,302 | — | 06 Jul 2023 | |
| Eric Eugene Esser |
3/4/5
|
President & CEO, Director |
—
mixed-class rows
|
329,260
mixed-class rows
|
$68,249 | — | 17 Apr 2024 | |
| Frank Witney |
3/4/5
|
Director |
—
mixed-class rows
|
146,098
mixed-class rows
|
$61,109 | — | 06 Jul 2023 | |
| Daniel Glenn Gibson |
3/4/5
|
Chief Technology Officer |
—
mixed-class rows
|
157,062
mixed-class rows
|
$55,737 | — | 27 Feb 2024 | |
| Christine A. Tsingos |
3/4/5
|
Director |
—
mixed-class rows
|
134,853
mixed-class rows
|
$55,171 | — | 06 Jul 2023 | |
| Jami Kay Nachtsheim |
3/4/5
|
Director |
—
mixed-class rows
|
132,041
mixed-class rows
|
$53,687 | — | 06 Jul 2023 | |
| Rob Cutler |
3/4/5
|
Chief Legal Officer |
—
mixed-class rows
|
147,518
mixed-class rows
|
$18,859 | — | 27 Feb 2024 | |
| James B. Weissman |
3/4/5
|
Director |
—
mixed-class rows
|
13,658
mixed-class rows
|
$4,430 | — | 24 Jul 2024 | |
| Michael R. Hodges |
3/4/5
|
Director |
—
mixed-class rows
|
13,658
mixed-class rows
|
$4,430 | — | 24 Jul 2024 | |
| Sarah E. Hlavinka |
3/4/5
|
Director |
—
mixed-class rows
|
13,658
mixed-class rows
|
$4,430 | — | 24 Jul 2024 | |
| Steven J. Golub |
3/4/5
|
Director |
—
mixed-class rows
|
13,658
mixed-class rows
|
$4,430 | — | 24 Jul 2024 | |
| Todd Krueger |
3/4/5
|
Director |
—
mixed-class rows
|
13,658
mixed-class rows
|
$4,430 | — | 24 Jul 2024 | |
| William J. Kullback |
3/4/5
|
Chief Financial Officer |
—
class O/S missing
|
300,000
|
— | — | 31 Aug 2023 | |
| Jennifer Isacoff McNealey |
3/4/5
|
Chief Financial Officer |
—
mixed-class rows
|
135,300
mixed-class rows
|
— | — | 27 Feb 2022 | |
| Brent M. Hunter |
3/4/5
|
Vice President, Finance & PFO |
—
class O/S missing
|
125,000
|
— | — | 04 Aug 2022 |
Recent Insider Transactions by Companies or Individuals for Telesis Bio Inc.
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| No insider transactions were found in the last 12 months for this issuer. | ||||||||||
* An asterisk sign (*) next to the price indicates that the price is likely invalid.