# David Stern

> David Stern is a Series A investor at SportsCastr (New York) backing Sports and Gaming. See 23 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [SportsCastr](https://shizune.co/investors/profile/sportscastr-live-2)
- Location: New York, United States
- Total investments: 23
- Last investment: Dec 2019
- Lead investor: 13%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/david-stern-5799bb17/

David Stern is a Series A investor at SportsCastr in New York focused on Sports and Gaming. David Stern completed his three-decade tenure as NBA commissioner on February 1, 2014.As commissioner, Mr. Stern built the model for professional sports in league operations, public service, global marketing and digital technology. He oversaw the NBA’s extraordinary growth with seven new franchises, a more than 30-fold increase in revenues, adramatic expansion of national television exposure and the launch of two leagues, the Women’s National Basketball Association and the NBA Development League. He implemented the first anti-drug agreement in professional sports and introduced the salary cap system and revenue sharing to the NBA.The NBA experienced tremendous global growth during Mr. Stern’s tenure, and that growth continues today: The NBA has 12 offices outside the United States; its games and programming are televised and streamed in 215 countries and territories in 47 languages; and it offers fans 19 international online destinations. The NBA was the first U.S. professional sports league to stage regular-season games outside North America, and the league has played more than 150 international preseason and regular-season games to date.

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $3.8M–$5M |
| Series A | $3.6M–$23M |
| Series B | $5M–$33M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Sports | 6 | 26% |
| Gaming | 4 | 17% |
| Software | 3 | 13% |
| Mobile | 2 | 9% |
| FinTech | 2 | 9% |

43 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series A | 7 | 30% |
| Seed | 4 | 17% |
| Series B | 4 | 17% |
| Pre-Seed | 2 | 9% |
| Funding Round | 2 | 9% |

7 stages tracked in total.

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 15 | 65% |
| Spain | 1 | 4% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Proteus Motion | The Proteus system by Proteus Motion Inc. (formerly Boston Biomotion) is a new category of intelligent exercise and rehab equipment designed to strengthen, optimize, and restore movements using patented 3D resistance and 3D measurement. One system is used to train and measure any movement during post-op through peak performance, and enhancemovement efficiency through a unique neuromuscular stimulation that can only be achieved by moving in water or mud. Compared to traditional tools like free weights and cable machines, 3D resistance produces up to 3x more muscle stimulation, lower strain on the joints, and greater neuromuscular stimulation to accelerate "muscle memory" and more efficient movement patterns. Subscription software profiles strength for users using a new and comprehensive way to measure muscle performance, offers personalized insights and recommendations, and tracks progress across a suite of 6 proprietary metrics.The company was founded in 2016 and headquartered in New York, United States. | $3.8M |  | Dec 03, 2019 |  |
| Proteus Motion | The Proteus system by Proteus Motion Inc. (formerly Boston Biomotion) is a new category of intelligent exercise and rehab equipment designed to strengthen, optimize, and restore movements using patented 3D resistance and 3D measurement. One system is used to train and measure any movement during post-op through peak performance, and enhancemovement efficiency through a unique neuromuscular stimulation that can only be achieved by moving in water or mud. Compared to traditional tools like free weights and cable machines, 3D resistance produces up to 3x more muscle stimulation, lower strain on the joints, and greater neuromuscular stimulation to accelerate "muscle memory" and more efficient movement patterns. Subscription software profiles strength for users using a new and comprehensive way to measure muscle performance, offers personalized insights and recommendations, and tracks progress across a suite of 6 proprietary metrics.The company was founded in 2016 and headquartered in New York, United States. | $3.8M | Seed | Dec 03, 2019 |  |
| WHOOP | WHOOP is the performance optimization system that tracks recovery, training, and sleeping hours thus helping elite athletes and teams win.The company provides athletes, coaches, and trainers with a continuous understanding of strain and recovery to balance training, reduce injuries, and predict performance. It creates a product that makesindividuals and teams perform at a higher level through a deeper understanding of their bodies and daily lives. The WHOOP Strap 3.0 collects physiological data 24/7 to provide an accurate and granular understanding of the body. Aurelian Nicolae, John Capodilupo, and Will Ahmed established WHOOP in 2012 and in Boston, Massachusetts. | $55M | Series D | Nov 12, 2019 |  |
| Verse | Verse is the payments technology platform that takes the friction out of storing, spending and sharing money. The mobile app allows you to share payments easily, instantly and with no hidden fees and also allows you to choose whether your transactions are private or public so that you can have fun while keeping track of your financial activities.Verse is available for both Android and iOS-based phones and transactions are completed in less than two business days. The company was founded in 2016 and is based in Barcelona, Spain. | $5.3M |  | May 31, 2019 |  |
| Jackpocket | Jackpocket is creating a more convenient, fun, and responsible way to play the lottery. The first licensed third-party lottery app in the United States, Jackpocket offers players an easy, secure way to order official state lottery tickets, such as Powerball, Mega Millions, from their phone. Lottery players use Jackpocket to place ticket orders fortheir favorite games, check lottery results, join lottery pools with other Jackpocket players, and turn on Autoplay so they never miss a drawing. Jackpocket is available in Arkansas, Colorado, Minnesota, New Hampshire, New Jersey, New York, Ohio, Oregon, Texas, and Washington, D.C. with many new markets on the horizon. | $5M | Series B | May 24, 2019 |  |
| Jackpocket | Jackpocket is creating a more convenient, fun, and responsible way to play the lottery. The first licensed third-party lottery app in the United States, Jackpocket offers players an easy, secure way to order official state lottery tickets, such as Powerball, Mega Millions, from their phone. Lottery players use Jackpocket to place ticket orders fortheir favorite games, check lottery results, join lottery pools with other Jackpocket players, and turn on Autoplay so they never miss a drawing. Jackpocket is available in Arkansas, Colorado, Minnesota, New Hampshire, New Jersey, New York, Ohio, Oregon, Texas, and Washington, D.C. with many new markets on the horizon. | $16.4M | Series B | Oct 30, 2018 |  |
| Cargo | Cargo Systems is the creators of Cargo, the in-car service that allows rideshare passengers to order products on their phone, without downloading an app.Founded in 2016 by former Birchbox employees, Cargo launched in New York and Boston with thousands of driver signups in 49 states. Cargo works directly with rideshare companies, drivers and brandpartners to distribute a variety of products to passengers in-car.A Techstars alumnus, Cargo is venture-backed by Techstars Ventures, Fontinalis Partners, Detroit Venture Partners, Rosecliff Capital. | $22.5M | Series A | Sep 24, 2018 |  |
| WHOOP | WHOOP is the performance optimization system that tracks recovery, training, and sleeping hours thus helping elite athletes and teams win.The company provides athletes, coaches, and trainers with a continuous understanding of strain and recovery to balance training, reduce injuries, and predict performance. It creates a product that makesindividuals and teams perform at a higher level through a deeper understanding of their bodies and daily lives. The WHOOP Strap 3.0 collects physiological data 24/7 to provide an accurate and granular understanding of the body. Aurelian Nicolae, John Capodilupo, and Will Ahmed established WHOOP in 2012 and in Boston, Massachusetts. | $25M | Series C | Mar 06, 2018 |  |
| WHOOP | WHOOP is the performance optimization system that tracks recovery, training, and sleeping hours thus helping elite athletes and teams win.The company provides athletes, coaches, and trainers with a continuous understanding of strain and recovery to balance training, reduce injuries, and predict performance. It creates a product that makesindividuals and teams perform at a higher level through a deeper understanding of their bodies and daily lives. The WHOOP Strap 3.0 collects physiological data 24/7 to provide an accurate and granular understanding of the body. Aurelian Nicolae, John Capodilupo, and Will Ahmed established WHOOP in 2012 and in Boston, Massachusetts. | $25M | Series C | Mar 06, 2018 |  |
| ShotTracker | ShotTracker makes sensor-based technology that automatically captures basketball statistics in real-time during practices and games. At ShotTracker, they improve the performance of competitive athletes by bringing elite-level analytics to the masses. Their latest innovation, ShotTracker TEAM, captures real-time practice and game stats forbasketball teams, and it's affordable for teams at every level of play. | $10.4M | Series A | Mar 01, 2018 |  |

10 of 23 investments shown.

## Co-investors
- [Greycroft](https://shizune.co/investors/profile/greycroft) — VC Fund, 7 deals together
- [Elysian Park Ventures](https://shizune.co/investors/profile/elysian-park-ventures) — VC Fund, 3 deals together
- [Promus Ventures](https://shizune.co/investors/profile/promus-ventures) — VC Fund, 3 deals together
- [Two Sigma Ventures](https://shizune.co/investors/profile/two-sigma-ventures) — VC Fund, 3 deals together
- [8VC](https://shizune.co/investors/profile/8vc) — VC Fund, 2 deals together
- [AAF Management Ltd.](https://shizune.co/investors/profile/aafmanagement) — VC Fund, 2 deals together

## About SportsCastr

VC Fund · New York, United States

SportsCastr is a social live streaming video platform built specifically for sports fans. Ultra low-latency streaming means that every stream is in sync with the live game action. FanChain is the decentralized blockchain ecosystem that makes fans all over the world part of their favorite teams by rewarding them for the immense value they create.FanChain powers SportsCastr's digital economy and supports the new trillion-dollar global sports industry.

5 contacts available at SportsCastr.

| Name | Title | Profile |
| --- | --- | --- |
| David Stern | Advisor / Investor | https://shizune.co/investors/profile/david-stern-3 |
| Andrew Schupak | CFO, Head of Strategy | https://shizune.co/investors/profile/andrew-schupak |
| Dakota Berg | Lead Designer | https://shizune.co/investors/profile/dakota-berg |
| Nick Schupak | VP Community & Partnerships | https://shizune.co/investors/profile/nick-schupak-aa8c |
| Peter Azuolas | CTO | https://shizune.co/investors/profile/peter-azuolas |

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## FAQ

### What does David Stern invest in?

David Stern invests primarily in Sports, Gaming and Software startups, most often at Series A and Seed stage. Most of the 23 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is David Stern's check size?

David Stern typically joins rounds of $3.8M–$5M at Seed, $3.6M–$23M at Series A and $5M–$33M at Series B. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds David Stern participates in.

### When did David Stern last invest?

The most recent investment recorded for David Stern closed in Dec 2019. Shizune tracks 23 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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