23% of people shaping AI who left a university for a company later returned to a university

How often do the people shaping AI leave a university for a company and later return to academia—or leave a company for a university and later return to industry? Across dated full moves through 2026, we estimate that 468 of the 2,011 people who left a university for a company (23%) later made a full move back to a university, after a median of 5 years in industry. In the reverse direction, 163 of the 829 people who left a company for a university (20%) later returned to a company, after a median of 4 years in academia.

Key findings

• Across 651 full round trips by 542 people, 468 of 2,011 university-to-company movers (23%) returned to a university (482 trips) and 163 of 829 company-to-university movers (20%) returned to a company (169 trips), including 89 people who completed round trips in both directions. Leaving out degree-only stays, 237 of the 1,264 people who left a university work role for a company (19%) later returned to a university.
• Among the 650 people who first left a university for a company in 2022–2026 (32% of all full university-to-company movers), 39 (6%) have returned so far, compared with 32% (429 of 1,361) among those who first left in or before 2021 (including 213, or 16%, within 5 years).
• University-to-company returners spent a median of 5 years in industry (middle half 2 to 10 years), longer than the 4-year median (middle half 2 to 9 years) for company-to-university returners. Researchers who returned from the first company they joined (380 of 482 trips, or 79%) came back after a median of 4 years, compared with 9 years for the 102 trips where the person moved between companies first.
• 83% of university-to-company-to-university trips (398 of 482) returned to a different university from the one the person left, and 84 (17%) returned to the same university; in the reverse direction, 153 of 169 company-to-university-to-company trips (91%) returned to a different company and 16 (9%) returned to the same company. AT&T leads companies on university recruits who later returned to academia (51), Stanford University received the most returning people (23) and Massachusetts Institute of Technology sent the most who later came back (34).

23% of university-to-company movers and 20% of company-to-university movers later returned

Across all dated records through 2026, 2,011 people made 2,290 full moves from a university to a company, and 468 of those people (23%) later made a full move from a company back to a university (482 round trips, including 14 people who completed 2 round trips: Aakanksha Chowdhery, Arthur Samuel, Bohyung Han, Fei Sha, Graham Neubig, Hai Pham, João Pavão Martins, Kenneth Church, Mitchell Black, Ralph Hollis, Richard Sutton, Richard Szeliski, Victor Lempitsky and Yangqiu Song). In the reverse direction, 829 people made 925 full moves from a company to a university, and 163 of them (20%) later made a full move from a university back to a company (169 round trips, including 6 people with 2 round trips: Aakanksha Chowdhery, Ashish Tendulkar, Bohyung Han, Fei Sha, Graham Neubig and Hai Pham). Together, 542 distinct people completed a full cross-sector round trip, and 89 completed round trips in both directions.

Stacked horizontal bars show the share of full university-to-company moves in 6 decades from the 1970s to the 2020s that were followed by a full return move to a university, split into returns within 5 years and returns after 6 or more years.

Source: People of Superintelligence career records from biographies and OpenAlex, as of 22 October 2026. A full move starts at a new parent organization within a year of the earlier role ending, paired with the person's next full move back.

Data table

Departure decade	Full university-to-company moves	Returned within 5 years	Returned after 6+ years	All returns to a university	Return share	Returns from a university work departure	Reverse: company-to-university moves returning to a company
1970s	50	3 (6%)	14 (28%)	17	34%	6	1 of 13 (8%)
1980s	115	17 (15%)	34 (30%)	51	44%	21	6 of 46 (13%)
1990s	221	34 (15%)	49 (22%)	83	38%	55	16 of 97 (16%)
2000s	281	55 (20%)	38 (14%)	93	33%	54	37 of 187 (20%)
2010s	619	84 (14%)	57 (9%)	141	23%	67	53 of 215 (25%)
2020s	956	66 (7%)	0 (0%)	66	7%	37	50 of 346 (14%)

In the 1970s, 17 of 50 full university-to-company moves (34%) were eventually followed by a full move back to a university. Across the complete decades in the chart, that cumulative return share went from 34% in the 1970s to 44% in the 1980s (51 of 115), 38% in the 1990s (83 of 221), 33% in the 2000s (93 of 281) and 23% in the 2010s (141 of 619). In the 2020s through 2026, 66 of 956 full university-to-company moves (7%) have already been followed by a full return to a university.

Returns after 6 or more years went from 28% of departures in the 1970s (14 of 50) to 9% in the 2010s (57 of 619), and returns within 5 years went from 6% in the 1970s (3 moves) to 14% in the 2010s (84 moves). Among the 160 full university-to-company moves in 2020–2021 that have at least 5 years of follow-up through 2026, 21 (13%) returned to a university within 5 years. Across all career records, 429 of the 1,361 people who first left a university for a company in or before 2021 (32%) eventually returned to a university, and 350 of the 1,004 who first left in or before 2016 (35%) eventually returned (245, or 24%, within 10 years).

Return trips take a median of 5 years from companies and 4 years from universities

Across all 482 full university-to-company-to-university trips, the median time between leaving the university and starting back at a university is 5 years, with the middle half of trips spanning 2 to 10 years. 264 of the 482 trips (55%) returned within 5 years: 135 (28%) in 1 to 2 years and 129 (27%) in 3 to 5 years. Another 112 trips (23%) took 6 to 10 years, and 106 (22%) returned after 11 or more years.

Range plot comparing the median and interquartile range of years before returning across 8 groups of full round-trip moves between universities and companies.

Source: People of Superintelligence career records from biographies and OpenAlex, as of 22 October 2026.

Data table

Round-trip path	Trips	People	25th percentile (yrs)	Median (yrs)	75th percentile (yrs)	1–2 yrs	3–5 yrs	6–10 yrs	11+ yrs
University to company to university	482	468	2	5	10	135	129	112	106
From a university work role	245	237	2	4	9	74	73	51	47
After a university degree stay	237	235	2	6	10	61	56	61	59
Via one company	380	372	2	4	8	128	112	75	65
Via two or more companies	102	101	6	9	15	7	17	37	41
Returned to the same university	84	84	3.8	7	13	14	24	21	25
Returned to a different university	398	390	2	4	9	121	105	91	81
Company to university to company	169	163	2	4	9	43	51	38	37
Company to university to same company	16	16	3	3.5	7.3	1	8	5	2
Company to university to different company	153	147	2	5	10	42	43	33	35

Researchers who left a university work role (245 trips) returned after a median of 4 years (middle half 2 to 9 years, with 60% returning within 5 years), shorter than the 6-year median (middle half 2 to 10 years) for the 237 trips where the person entered industry right after a university degree stay.

In 380 of the 482 university-to-company-to-university trips (79%), the person returned to a university directly from the company they had joined from academia. Those single-company trips lasted a median of 4 years (middle half 2 to 8 years). In the remaining 102 trips (21%), the person moved to another company before returning to a university, and the median time away from academia was 9 years (middle half 6 to 15 years)—2.3 times the single-company median.

In 398 of the 482 university-to-company-to-university trips (83%, by 390 people), the person returned to a different university from the one they had left, after a median of 4 years (middle half 2 to 9 years). The remaining 84 trips (17%, by 84 people) returned to the exact university the person had left, after a median of 7 years (middle half 3.8 to 13 years).

In the reverse direction, the 169 company-to-university-to-company trips took a median of 4 years at universities before the person returned to a company (middle half 2 to 9 years; 94 trips, or 56%, returned within 5 years, and 37, or 22%, after 11 or more years). In 133 of the 169 trips (79%), the person stayed at a single university during their academic spell. 16 of the 169 trips (9%, by 16 people) returned to the exact company the person had left (median 3.5 years), and 153 (91%, by 147 people) joined a different company (median 5 years).

Which companies and universities lead these round trips

Grouping university-to-company-to-university trips by the company a person joined when leaving academia shows where returning people spent their industry years. Across the 218 companies that hired future academic returners from universities, AT&T leads with 51 people (60% of 85 full university recruits to AT&T, median 9 years), followed by Microsoft with 47 (28% of 170, median 3 years), IBM with 36 (32% of 113, median 4 years) and Google with 33 (11% of 314, median 3 years). Counting instead by the last company before the return to a university, Microsoft leads with 39 people, ahead of AT&T with 38.

Stacked horizontal bars for 10 companies whose university recruits most often returned to a university, split into people who returned directly from that company and people who moved to another company before returning.

Source: People of Superintelligence career records from biographies and OpenAlex, as of 22 October 2026. Parent companies include their corporate labs. The table lists all 23 companies with at least 3 returning university recruits.

Data table

Company	University recruits (full moves)	Later returned to a university	Return share	Returned directly from this company	Returned via another company	Median years away	People
AT&T	85	51	60%	37	14	9	Alfred V. Aho, Alon Orlitsky, Amanda Stent, Arthur Samuel, Barna Saha, Bart Selman, Biing-Hwang Fred Juang, Brian W. Kernighan, Charles Isbell, Diane Litman, Edward F. Moore, George W. Furnas, Giuseppe Riccardi, H. Sebastian Seung, Helen Hastie, Henry Kautz, Henry S. Baird, Isaac Chuang, Isabel Trancoso, Jaewoo Kang, James L. Flanagan, Jan van Santen, Jonathan Turner, Julia Hirschberg, Kannan Ramchandran, Kenneth Church, Kim L. Boyer, Kurt Keutzer, Mary Beckman, Matthias Grossglauser, Mehryar Mohri, Michael E Lesk, Michael K. Reiter, Mirella Lapata, Naftali Tishby, Patrick Drew McDaniel, Paul Resnick, Richard Sproat, Richard Sutton, Roger Shepard, Ronald J. Brachman, Ronald W. Schafer, Rüdiger Urbanke, Satinder Singh Baveja, Tal Malkin, Theo Pavlidis, Trevor Hastie, William S. Cleveland, William W. Cohen, Yannis Stylianou and Yoav Freund
Microsoft	170	47	28%	35	12	3	A. Feder Cooper, Aakanksha Chowdhery, Abdelrahman Mohamed, Anmol Agarwal, Arnavi Chheda-Kothary, Ben Glocker, Carsten Rother, Chenyan Xiong, Deli Zhao, Deng Cai, Dilek Hakkani-Tur, Divya Siddarth, Fan Zhou, Fernando Diaz, Fernando G. S. L. Brandão, Frank McSherry, Gennady Pekhimenko, Hai Pham, Haipeng Luo, Hal Daumé III, Hamid Palangi, Han Hu, Haonan Wang, James Zou, Jifeng Dai, Kai-Wei Chang, Kaiming He, Karan Singh, Kunal Talwar, Kyros Kutulakos, Li Dong, Lin Ma, Marco Tulio Ribeiro, Margaret Mitchell, Minjia Zhang, Munmun De Choudhury, Murat A. Erdogdu, Nan Jiang, Nick Harvey, Otmar Hilliges, Sasha Luccioni, Satyen Kale, Shital Shah, Victor Lempitsky, Wenyin Liu, Yangqiu Song and Zicheng Liu
IBM	113	36	32%	31	5	4	Adam Lally, Arthur Samuel, Carlos José Pereira de Lucena, Christian Muise, Elad Hazan, Eric Price, Frederick Jelinek, Gerhard Rigoll, Grace Wahba, Hans Berliner, Harshad Khadilkar, Hector Geffner, Hugo Krawczyk, Humphrey Shi, John D. Lafferty, John E. Kelly III, John F. Sowa, John Henry Holland, John Langford, John M. Hollerbach, Jorma Rissanen, Joyce Chai, Kenneth Church, Maarten van Emden, Mihir Bellare, Nalini K. Ratha, Phillip Rogaway, Ragunathan Rajkumar, Ralph Hollis, Rudi Studer, Sridhar Mahadevan, Tong Zhang, Victor Shoup, Wei Wang, Wen-Huang Cheng and Yangqiu Song
Google	314	33	11%	26	7	3	Aakanksha Chowdhery, Abhinav Shrivastava, Alejandro Escontrela, Bohyung Han, Carl Vondrick, Chandrashekar Lakshminarayanan, Chong Zhang, Claire Vernade, Colin Raffel, David Silver, Evan Shelhamer, Florian Tramèr, Hang Zhao, Jean-Philippe Vert, Jiachen T. Wang, John Kirchenbauer, Kanta Yamaoka, Kelsey Allen, Lucas Baker, Madalina Fiterau, Maxime C. Cohen, Moti M. Yung, Nada Amin, Nicolas Le Roux, Pang Wei Koh, Percy Liang, Razvan Pascanu, Richard Szeliski, Ross Goroshin, Sebastian Ruder, Tomas Mikolov, Yasutaka Furukawa and Yoav Goldberg
Meta	111	18	16%	17	1	3.5	Daniel Levy, Emile Mathieu, Georgia Gkioxari, Graham Neubig, Guoxing Chen, Ilija Radosavovic, Jan-Michael Frahm, Margaret Li, Meng Li, Mohamed Elhoseiny, Muhan Zhang, Or Litany, Pascal Vincent, Saining Xie, Soumith Chintala, Stephen Roller, Yixuan Li and Zhuang Liu
Yahoo	19	10	53%	9	1	2	Alexander Berg, Carlos Castillo, Fei Sha, Felipe Bravo-Marquez, Ingmar Weber, Kilian Weinberger, Li-Jia Li, Michael Mahoney, Xiaofei He and Yiling Chen
NTT	12	7	58%	4	3	6	Craig Gentry, Fumitada Itakura, Futoshi Futami, Gautam Reddy, Hiroshi Murase, Makoto Yokoo and Shinji Watanabe
General Electric	8	6	75%	5	1	7.5	Alison Noble, Charles A. Rosen, Joseph Weizenbaum, Stephen J. Maybank, Tomek Strzalkowski and Xiaoming Liu
Mitsubishi Group	13	6	46%	6	0	13	Bhiksha Raj, Charles Rich, Hanspeter Pfister, Michael J. Jones, Mikio Umeda and Weizhe Chen
Philips	10	6	60%	4	2	9.5	Christian Wellekens, Hermann Ney, Jong Chul Ye, Joost-Pieter Katoen, Maarten Steinbuch and Mihaela van der Schaar
Amazon	41	5	12%	5	0	1	Arun Balajee Vasudevan, Ashutosh Sharma, Federico Mora, Mark Sellke and Ravi Garg
Hewlett-Packard	10	5	50%	4	1	4	Benny Pinkas, Dave Cliff, Kyuseok Shim, Nigel Smart and Wei-Ying Ma
Sony	9	5	56%	4	1	5	Dora Zhao, François Pachet, Kim Binsted, Orestis Papakyriakopoulos and Pierre-Yves Oudeyer
Alibaba	25	4	16%	4	0	3.5	Huan Lin, Le Yu, Rui Men and Yinger Zhang
Baidu	10	4	40%	4	0	1.5	Gang Niu, Lei Li, Linxi Fan and Zhibin Gou
DeepSeek	28	4	14%	3	1	1	Haocheng Wang, Huajian Xin, Kai Hu and Shangyan Zhou
Siemens	9	4	44%	4	0	5.5	Gustavo Carneiro, Haibin Ling, Nassir Navab and Russ Greiner
Xerox	22	4	18%	1	3	6.5	Eytan Adar, Hinrich Schütze, Lucia Specia and Ronald M. Kaplan
Boeing	4	3	75%	1	2	9	Hai Pham, Mason Peck and Peter Clark
NEC	7	3	43%	2	1	10	Hang Li, Joe Kilian and Michael Buro
Samsung	7	3	43%	3	0	2	Dong-Hwa Seo, Kaushik Mitra and Kyungtae Lim
Schlumberger	7	3	43%	3	0	2	Andrew Witkin, Emilien Dupont and Luc Steels
Twitter	5	3	60%	1	2	4	Christian Ledig, Ferenc Huszár and Jake Snell

Among the 10 companies with at least 30 full university recruits (Google (314), Microsoft (170), IBM (113), Meta (111), AT&T (85), NVIDIA (70), OpenAI (51), Amazon (41), Anthropic (34) and Mistral AI (30)), the share who later returned to a university ranges from 60% at AT&T (51 of 85) to 0% at Mistral AI (0 of 30).

On the academic side, 200 universities saw people leave for a company and later return to a university, and 226 universities received them on their return. Massachusetts Institute of Technology had the most departures that later returned to academia, with 34 people (24 from university work roles; 2 returned to Massachusetts Institute of Technology and 32 joined another university), followed by Carnegie Mellon University with 22 and Stanford University with 20. Among destination universities, Stanford University received the most returning people from companies with 23 (5 who had left Stanford University and 18 who had left another university), followed by Carnegie Mellon University with 20 and Columbia University with 15. For same-university returns, Carnegie Mellon University leads with 7 people (Alon Lavie, Bhiksha Raj, Chengxiang Zhai, Chenyan Xiong, Hai Pham, Ragunathan Rajkumar and Scott E. Fahlman), ahead of Stanford University with 5. The list below ranks the universities that received the most returning people from companies.

1. Stanford University23Aakanksha Chowdhery, Arthur Samuel, Bojan Tunguz, Craig Gentry, Daniel Levy, Deep Ganguli, Dora Zhao, Hinrich Schütze, Isaac Chuang, James Zou, John R. Koza, Li-Jia Li, Linxi Fan, Michael Mahoney, Or Litany, Percy Liang, Reza Zadeh, Robert S. Engelmore, Roger Shepard, Ronald M. Kaplan, Stanley J. Rosenschein, Trevor Hastie and Yixuan Li
2. Carnegie Mellon University20Alon Lavie, Andrew Witkin, Anmol Agarwal, Bhiksha Raj, Chengxiang Zhai, Chenyan Xiong, Cristina Conati, Eric Paulos, Fernando Diaz, Hai Pham, Hans Berliner, John D. Lafferty, Karan Singh, Madalina Fiterau, Michael K. Reiter, Ragunathan Rajkumar, Ralph Hollis, Scott E. Fahlman, William W. Cohen and Yang Zhilin
3. Columbia University15Adam Lally, Alexander Berg, Alfred V. Aho, Arnavi Chheda-Kothary, Carl Vondrick, Howard Friedman, Julia Hirschberg, Kannan Ramchandran, Michael E Lesk, Moti M. Yung, Pascale Fung, Satyen Kale, Shree K. Nayar, Tal Malkin and Yoav Freund
4. Massachusetts Institute of Technology13Dan Roberts, H. Sebastian Seung, J. C. R. Licklider, John Krafcik, John M. Hollerbach, Joseph Weizenbaum, Kaiming He, Kenneth Church, Matthew Turk, Michael J. Jones, Mitchell Black, Nicholas Schiefer and Omar Khattab
5. University of Washington10Eytan Adar, Graham Neubig, Hamid Palangi, Henry Kautz, Marco Tulio Ribeiro, Margaret Li, Margaret Mitchell, Pang Wei Koh, Richard Szeliski and Sebastian Ruder
6. Harvard University9Fei Sha, Hanspeter Pfister, John Henry Clippinger, Lucas Baker, Mark Sellke, Martin Wattenberg, Rylan Schaeffer, Susumu Kuno and Yiling Chen
7. New York University9Dan Berenberg, Foster Provost, Hai Li, Mehryar Mohri, Ramesh Karri, Saining Xie, Soumith Chintala, Stephen Roller and Victor Shoup
8. University of Toronto9Anne Martel, Brad A. Myers, Colin Raffel, Edward Kim, Eric Elmoznino, Gennady Pekhimenko, Jake Snell, Kyros Kutulakos and Murat A. Erdogdu
9. University of Illinois Urbana-Champaign9Arthur Samuel, Ashutosh Sharma, Deng Cai, Dilek Hakkani-Tur, Gul Agha, Minjia Zhang, Nan Jiang, Patrick J. Hayes and Richard Sproat
10. University of Michigan9Chinedum Okwudire, Gaurav Singhal, George W. Furnas, Jason Mars, John Henry Holland, Lan Xuezhao, Mitchell Black, Paul Resnick and Satinder Singh Baveja

In the reverse direction—leaving a company for a university and later returning to a company—Google had the most departures that completed a round trip (19 people), followed by Microsoft (15). During the academic leg of those trips, Massachusetts Institute of Technology hosted the most people (10 people: Ce Liu, Cynthia Solomon, Danqi Chen, Jaakko Lehtinen, Jeff Lieberman, John Krafcik, Kaiming He, Oswin So, Sam Bankman-Fried and William T. Freeman), ahead of Stanford University (9: Aakanksha Chowdhery, Andrew Ng, Archit Sharma, Craig Gentry, Daniel Levy, Li-Jia Li, Linxi Fan, Or Litany and Pete Warden). When those people returned from academia to industry, Google hired the most (20 people: Aakanksha Chowdhery, Alexandre Passos, Archit Sharma, Ashwin Ram, Bohyung Han, Ce Liu, Emilien Dupont, Georg Heigold, Jonathan Tompson, Kaiming He, Kristina N. Toutanova, Mahdi Haghifam, Martin Wattenberg, Matthew Lai, Max Schwarzer, Michael Collins, Ming-Hsuan Yang, Oswin So, Richard Szeliski and Saining Xie), followed by IBM (8: Adam Lally, Arthur Samuel, Craig Gentry, Dan Alistarh, Hugo Krawczyk, Kenneth Church, Ralph Hollis and Richard P. Gabriel).