Zach Weinberg

Co-Founder & CEO, Curie.Bio · 1 appearance on the record.

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founderinvestorexecutiveoperator@zachweinberg ↗

Zach Weinberg is the co-founder and CEO of Curie.Bio and a general partner at Operator Partners. He previously co-founded Invite Media, which was acquired by Google, and Flatiron Health, which was acquired by Roche.

25statements → 6claims → 1claims resolved → 3.96/5average certainty → 2.5/5average debate potential → ≈4.5/5argument clarity, estimated → 10said about them ↓

1 supported 0 partly supported 0 contradicted 5 not checkable as stated how the 6 claims stand · each chip opens the sources

3 predictions · 3 assertions · 2 opinions · 13 insights · 4 disclosures · every statement was checked. The predictions and assertions are the 6 claims: statements the public record can support or contradict. 1 is resolved, and 5 name no date, number or outcome precise enough to check. Everything else (opinions, insights, what ifs, disclosures) can never be settled by the record, so it carries no assessment.

The record, in short

What the tape says about how Zach argues and how the claims held up. Everything they said, and everything said about them, is in the tabs below.

Their most notable supported claim

Assertion Supported
Weinberg: Venture fund returns are dropping to 1.5x to 2x
“You're seeing fund returns come down. You're not seeing five X, six X funds. You're seeing one and a half X, two X funds, and some that are probably even one X funds where you pile in and something goes really wrong.”
Zach Weinberg Nov 6, 2020 ▶ 23:15 20VC: Zach Weinberg on Whether A Company is a Democracy, The Importance of Ownership, The Rise of Pre-Emptive Rounds, Multi-Stage Funds Entering Seed and How he Approaches Both Risk and Personal Capital Allocation

How they sound: speaking style how? →

295 words/min while actually speaking · 0.2 um and uh per 1k words

No argument clarity score for Zach Weinberg: no usable question→answer exchanges on raw tape (a fair score needs 8+). We do not score a sample that small. Roundtable and news formats yield far fewer direct exchanges than interviews. Their coarse estimate from 28 exchanges on the produced feed is ≈4.5/5, shown at half point precision because the sample is small and produced tape scores higher.

Measured by listening to 6,577 words across 1 episode, but every recording we have of Zach Weinberg is the aired feed, and an editor cleaned that audio before release. Some of the hesitation was cut before we ever heard it, so read these as floors: the true rates are at least this high. These are measurements of speaking style, not scores. How it's measured →

Everything Zach Weinberg said on 20VC that made the record, most notable first. Filter by type, assessment or year in the ledger →

Opinion
Weinberg: Keith Rabois is a "giant doofus" regarding healthcare
“I think the guy is a giant doofus, and I would continue to hold my belief that he's a giant doofus, and I'll be very specific about why. I think Keith Raboy is probably a phenomenal technical investor, software company investor. It seems to me to be an amazing…”
Zach Weinberg Nov 6, 2020 ▶ 31:29 20VC: Zach Weinberg on Whether A Company is a Democracy, The Importance of Ownership, The Rise of Pre-Emptive Rounds, Multi-Stage Funds Entering Seed and How he Approaches Both Risk and Personal Capital Allocation
Disclosure
Weinberg: Upper-middle-class family safety nets enable founders to take startup risks
“The reality is if you've got family wealth, and we're not talking about having to have tens of millions of dollars here, you can just be upper middle class wealth, let's call it. It makes it a lot easier to make a leap and to do a startup because in the back o…”
Zach Weinberg Nov 6, 2020 ▶ 7:10 20VC: Zach Weinberg on Whether A Company is a Democracy, The Importance of Ownership, The Rise of Pre-Emptive Rounds, Multi-Stage Funds Entering Seed and How he Approaches Both Risk and Personal Capital Allocation
Opinion
Weinberg: It is naive for modern companies to claim complete societal neutrality
“To me, I think it's a little naive to think that a company can just say, we stand for absolutely nothing but our business. And maybe that was true 5060 years ago, but I just don't believe that that's true today.”
Zach Weinberg Nov 6, 2020 ▶ 9:09 20VC: Zach Weinberg on Whether A Company is a Democracy, The Importance of Ownership, The Rise of Pre-Emptive Rounds, Multi-Stage Funds Entering Seed and How he Approaches Both Risk and Personal Capital Allocation
Insight
Weinberg: Companies should take socio-political stances before their business is affected
“There are things that eventually have an effect on the business, and you need to make a stand on them before they have that effect.”
Zach Weinberg Nov 6, 2020 ▶ 13:28 20VC: Zach Weinberg on Whether A Company is a Democracy, The Importance of Ownership, The Rise of Pre-Emptive Rounds, Multi-Stage Funds Entering Seed and How he Approaches Both Risk and Personal Capital Allocation
Insight
Weinberg: Initial checks drive almost all value in venture returns
“I'm more and more convinced that it kind of doesn't matter. And actually by far the most important thing is did you get into the right great company in the first place? It's the initial check that drives almost all the value.”
Zach Weinberg Nov 6, 2020 ▶ 20:35 20VC: Zach Weinberg on Whether A Company is a Democracy, The Importance of Ownership, The Rise of Pre-Emptive Rounds, Multi-Stage Funds Entering Seed and How he Approaches Both Risk and Personal Capital Allocation
Insight
Weinberg: Founders should sell under 5% of equity in secondary sales
“For the founder, I encourage them to take enough money off the table that they're comfortable taking a big swing at a bigger outcome. And for some people, just to put some numbers against it, some people, that's a million dollars. Because remember, you're goin…”
Zach Weinberg Nov 6, 2020 ▶ 21:24 20VC: Zach Weinberg on Whether A Company is a Democracy, The Importance of Ownership, The Rise of Pre-Emptive Rounds, Multi-Stage Funds Entering Seed and How he Approaches Both Risk and Personal Capital Allocation
Assertion Supported
Weinberg: Venture fund returns are dropping to 1.5x to 2x
“You're seeing fund returns come down. You're not seeing five X, six X funds. You're seeing one and a half X, two X funds, and some that are probably even one X funds where you pile in and something goes really wrong.”
Zach Weinberg Nov 6, 2020 ▶ 23:15 20VC: Zach Weinberg on Whether A Company is a Democracy, The Importance of Ownership, The Rise of Pre-Emptive Rounds, Multi-Stage Funds Entering Seed and How he Approaches Both Risk and Personal Capital Allocation
Insight
Weinberg: Companies can take public stances while prohibiting workplace political debates
“You can say, I believe these things are important, and also say to an employee base, however, don't bring it into the day-to-day office, don't bully people, and if you do bully people, and if you do push people based on their beliefs, we're going to fire you, …”
Zach Weinberg Nov 6, 2020 ▶ 10:58 20VC: Zach Weinberg on Whether A Company is a Democracy, The Importance of Ownership, The Rise of Pre-Emptive Rounds, Multi-Stage Funds Entering Seed and How he Approaches Both Risk and Personal Capital Allocation
Insight
Weinberg: Tech companies are not democracies; control rests with CEOs and boards
“And Jeff is completely right. It is not a democracy and it's really up to the CEO. And then ultimately the board who controls who the CEO is.”
Zach Weinberg Nov 6, 2020 ▶ 11:58 20VC: Zach Weinberg on Whether A Company is a Democracy, The Importance of Ownership, The Rise of Pre-Emptive Rounds, Multi-Stage Funds Entering Seed and How he Approaches Both Risk and Personal Capital Allocation
Insight
Weinberg: Second-time founders with small first exits are the best investments
“I have found that second time founders who had a good but small first outcome are by far and away the best people to invest in.”
Zach Weinberg Nov 6, 2020 ▶ 14:04 20VC: Zach Weinberg on Whether A Company is a Democracy, The Importance of Ownership, The Rise of Pre-Emptive Rounds, Multi-Stage Funds Entering Seed and How he Approaches Both Risk and Personal Capital Allocation
Insight
Weinberg: Operator Partners targets at least 2x next-round valuation step-ups
“We're looking for things where the multiple on the next round, not because I care about the markup at all, but because it shows Real growth and real value creation is more than like two X, let's call it as a baseline. So if I'm going to fund a company at a 10 …”
Zach Weinberg Aug 12, 2022 ▶ 20:52 20VC: 13 of the Great Investing Minds on When to Pay Up vs When To Remain Disciplined and Walk Because the Price is too High: The Ultimate Guide to Price Sensitivity
Insight
Weinberg: Wealth increases happiness by providing total flexibility over time
“I actually would say the money has made me happier. Maybe I'm not supposed to say it, but it's true, but it's not because, oh, I get to go around like spending it on cars and houses and stuff like that. It's just the flexibility to choose where you want to spe…”
Zach Weinberg Nov 6, 2020 ▶ 8:03 20VC: Zach Weinberg on Whether A Company is a Democracy, The Importance of Ownership, The Rise of Pre-Emptive Rounds, Multi-Stage Funds Entering Seed and How he Approaches Both Risk and Personal Capital Allocation
Disclosure
Weinberg: Financial independence enabled me to speak freely on Twitter
“I don't need to ask anybody for anything anymore, I guess, and there's a freedom to that. I don't have to rely on somebody else saying, oh, I like this person, let me help him, and I guess that's a little liberating. And you'll notice I didn't necessarily have…”
Zach Weinberg Nov 6, 2020 ▶ 12:46 20VC: Zach Weinberg on Whether A Company is a Democracy, The Importance of Ownership, The Rise of Pre-Emptive Rounds, Multi-Stage Funds Entering Seed and How he Approaches Both Risk and Personal Capital Allocation
Insight
Weinberg: Seed investments must project at least a 2x Series A step-up
“And we're looking for things where the multiple on the next round, not because I care about the markup at all, but because it shows Real growth and real value creation is more than like two X, let's call it as a baseline. So if I'm going to fund a company at a…”
Zach Weinberg Nov 6, 2020 ▶ 16:14 20VC: Zach Weinberg on Whether A Company is a Democracy, The Importance of Ownership, The Rise of Pre-Emptive Rounds, Multi-Stage Funds Entering Seed and How he Approaches Both Risk and Personal Capital Allocation
Assertion Not checkable as stated
Weinberg: For every seed win with a markup, three or four fail
“Because for every one of those checks that you write that gets there, there's like three or four that don't. And it's got to pay for the ones that don't get there. And that's the venture math, right? Your winners have to win big and they have to pay for all th…”
Zach Weinberg Nov 6, 2020 ▶ 16:32 20VC: Zach Weinberg on Whether A Company is a Democracy, The Importance of Ownership, The Rise of Pre-Emptive Rounds, Multi-Stage Funds Entering Seed and How he Approaches Both Risk and Personal Capital Allocation
Insight
Weinberg: Startup liquidity cycle times are now 10 years or longer
“I think the cycle times on these companies are so long. We used to say seven years, but I think it's actually much closer to 10, if not longer.”
Zach Weinberg Nov 6, 2020 ▶ 17:12 20VC: Zach Weinberg on Whether A Company is a Democracy, The Importance of Ownership, The Rise of Pre-Emptive Rounds, Multi-Stage Funds Entering Seed and How he Approaches Both Risk and Personal Capital Allocation
Insight
Weinberg: Shifting existing customer budgets is easier than creating new ones
“It's a lot easier to go after a market where people are already budgeting for that type of expense, whether it's a business is already budgeting for it, And you're just shifting it from where they spend it today to what you're going to do. And that's a lot eas…”
Zach Weinberg Nov 6, 2020 ▶ 18:28 20VC: Zach Weinberg on Whether A Company is a Democracy, The Importance of Ownership, The Rise of Pre-Emptive Rounds, Multi-Stage Funds Entering Seed and How he Approaches Both Risk and Personal Capital Allocation
Disclosure
Weinberg: Operator Partners exercises Series A pro-rata rights 100% of the time
“For now, what we're generally saying is if the Series A Is getting done and it's getting done at a price that we feel like is reasonable for the business, which most of them are, by the way, that's 80, 90%. Then a hundred percent of the time we're going to par…”
Zach Weinberg Nov 6, 2020 ▶ 19:57 20VC: Zach Weinberg on Whether A Company is a Democracy, The Importance of Ownership, The Rise of Pre-Emptive Rounds, Multi-Stage Funds Entering Seed and How he Approaches Both Risk and Personal Capital Allocation
Prediction Not checkable as stated
Weinberg: Operator Partners almost never sells equity in secondary transactions
“So to be clear, we won't sell. It's just sometimes we may not buy. The prorata. But we're basically never selling in a secondary.”
Zach Weinberg Nov 6, 2020 ▶ 21:16 20VC: Zach Weinberg on Whether A Company is a Democracy, The Importance of Ownership, The Rise of Pre-Emptive Rounds, Multi-Stage Funds Entering Seed and How he Approaches Both Risk and Personal Capital Allocation
Prediction Not checkable as stated
Weinberg: Multi-stage seed strategy will only work for top-tier funds
“And my guess, and I haven't modeled this, but my guess is, as with all of these things, there will be a subset of these funds where it works. Because they catch the five companies that they can continue to plow money into and end up putting five hundred millio…”
Zach Weinberg Nov 6, 2020 ▶ 22:58 20VC: Zach Weinberg on Whether A Company is a Democracy, The Importance of Ownership, The Rise of Pre-Emptive Rounds, Multi-Stage Funds Entering Seed and How he Approaches Both Risk and Personal Capital Allocation
Insight
Weinberg: Founders considering preemptive rounds must do realistic bottoms-up milestone planning
“The conversation usually with them is a, what I would call like a private one-on-one of, take your sales hat off, For a second, take your hype person hat off. Cause as a founder, you know, you're selling every single day, whether it's to recruits or customers …”
Zach Weinberg Nov 6, 2020 ▶ 23:56 20VC: Zach Weinberg on Whether A Company is a Democracy, The Importance of Ownership, The Rise of Pre-Emptive Rounds, Multi-Stage Funds Entering Seed and How he Approaches Both Risk and Personal Capital Allocation
Insight
Weinberg: The best investors accurately quantify their confidence levels
“Some of the best investors, I mean, actually, almost all the best investors I know will tell you, I don't know what I don't know. And here's the thing, they're able to quantify their confidence level.”
Zach Weinberg Nov 6, 2020 ▶ 32:15 20VC: Zach Weinberg on Whether A Company is a Democracy, The Importance of Ownership, The Rise of Pre-Emptive Rounds, Multi-Stage Funds Entering Seed and How he Approaches Both Risk and Personal Capital Allocation
Disclosure
Weinberg allocated 20% of his first exit's wealth to startup investing
“After we sold the first business, I would say we tried to come up with a number. I think it ended up being around 20% where it's like, okay, if I lose this, it's not going to be fun, but I'm not going to worry too much. Like I'll be okay. And we felt like 20% …”
Zach Weinberg Nov 6, 2020 ▶ 5:06 20VC: Zach Weinberg on Whether A Company is a Democracy, The Importance of Ownership, The Rise of Pre-Emptive Rounds, Multi-Stage Funds Entering Seed and How he Approaches Both Risk and Personal Capital Allocation
Prediction Not checkable as stated
Weinberg targets allocating 30% to 40% of his capital to startups
“This time around, we're looking closer to, like, 30 or 40% over time.”
Zach Weinberg Nov 6, 2020 ▶ 5:50 20VC: Zach Weinberg on Whether A Company is a Democracy, The Importance of Ownership, The Rise of Pre-Emptive Rounds, Multi-Stage Funds Entering Seed and How he Approaches Both Risk and Personal Capital Allocation

Show 1statements(1 left)

The other half of the tape: Zach Weinberg's own voice is left out of every number here. Other people bring the name up 9 times in 4 episodes on 20VC. 1 statement on the record names them. every mention, with the transcript →

Who brings them up most Logan Bartlett 4Harry Stebbings 3Samir Vasavada 1Josh Kopelman 1

Statements about Zach Weinberg, by other people (1)

Disclosure
Nat Turner and Zach Weinberg Were Vise's First Investors
“And the first investors that actually said yes were these guys, Nat Turner and Zach Weinberg, who started a company called Flatiron Health and sold it For a bunch of money to Roche and they actually went to Penn, and they're like, look, we had a similar story …”
Samir Vasavada Jun 28, 2024 ▶ 5:26 Samir Vasavada: The Real Story of Vise: The Regrets, Mistakes and Mis-Hires | E1171 · 20VC with Harry Stebbings

Every mention by year

Appearances (1)

EpisodeDateSpeaking time
20VC: Zach Weinberg on Whether A Company is a Democracy, The Importance of Ownership, The Nov 6, 2020 23m

Played on the show (1)

Episodes where a recording of Zach Weinberg was played rather than Zach taking part, or where the tape carries an address with nobody putting questions to them. Listed because the words are on the record, kept out of every score on this page because they were not said on this show. We read this off the tape: who was spoken to, who was asked something, who answered whom.

EpisodeDateOn tapeWhat it is
20VC: 13 of the Great Investing Minds on When to Pay Up vs When To Remain Disciplined and Aug 12, 2022 56s clip played
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