141st Anniversary Reunion
April 28-30, 2023

Weather Forecast

The end of April is often one of the most beautiful times of year in Boston, but it is still subject to springtime rains. Get up-to-date weather from the NWS Boston.

The reunion coincides with festivities for the inauguration of MIT's new president Sally Kornbluth. There will be a Street Fair in Killian Court on Saturday afternoon.

Schedule of Events

Friday, April 28
Open House532 Beacon St6pm-11pm
Era DinnersVarious LocationsVarious Times
After Party532 Beacon St11pm-1am
Saturday, April 29
Ritual Exemplification
for brothers only
MIT Lecture Hall, 6-1209:30am-11am
MIT Museum
for families and guests
MIT Museum (new location in Kendal Square)
10am-11:30am
Family Picnic President's Garden (between Bldg 10, 11, 13).11:45am-1:15pm
Alpha Theta Academy MIT Lecture Hall, 6-1201:45pm-4pm
Banquet Fenway Ballroom
Hotel Commonwealth
6pm-12am
After Party532 Beacon St11pm-1am
Sunday, April 30
Open House and Cookout532 Beacon St10am-2pm

The rear entrance to 532 Beacon Street is handicap-accessible and the building is equipped with an elevator. Parking behind the house will be quite limited, but if you need accesible parking there, please contact the reunion coordinators.

For accessibility to events on campus, see the MIT Campus Accessibility Map.

The Hotel Commonwealth sits right on the Kenmore Green Line stop. Street parking in Kenmore will be difficult, but you might get lucky. The hotel does offer valet parking.

Alpha Theta Academy Presenters

We're thrilled to announce this year's excellent lineup of speakers for this year's Alpha Theta Academy.

  • Craig German '87 on Deepfakes, AI, and the Future of Artistry in Hollywood
  • Dan Craig '03 on The Earth Orbit Economy
  • Jon Demerly '92 Autonomous Driving: What Makes It So Hard
  • Bruce Kirch '79 on The Road from the 2015 Sig Camping Trip to the 2022 World Triathlon Championship Finals

Registration is now open!

Dear Brothers and Friends,

Reunion is just four months away—and registration is now open! Register today at

alumic.mit.edu/sigmachi141

Early registration is so important, because without a good sense of attendance, getting ready is that much harder. Please don’t hesitate! Do it today!

We also need to hear SOON if any of you are willing to host class/era dinners—which you can indicate when you register. We currently need folks for all years except 1977 – 1986. NOTE: If you’ve never done this before, let us know and we can walk you through it. In short, we are looking for brothers to coordinate a dinner for their class (or perhaps their class and few on either side) at a Boston restaurant or Boston-area home.

If you would like to host a class/era dinner, please email the Reunion coordinators.

If you need a place to stay for Reunion, there are a LIMITED NUMBER of comfortable and convenient rooms available at the Hotel Commonwealth in Kenmore Square at an unheard of Boston bargain of $269/night. Yet another reason to register early!

Reserve your room at the Hotel Commonwealth using this link to get the discounted rate.

In Hoc,

John Piotti

Alpha Theta Sigma Chi '83

Dan Craig

Alpha Theta Sigma Chi '03

Save the Date!

Dear Brothers,

Join us as we celebrate Alpha Theta's 141st anniversary from:

Friday, April 28, 2023 through Sunday, April 30, 2023

A lot has changed in the world since we last celebrated together in 2017. While we were unable to be together this year at the 140th, we look forward to be able to be together again next spring for Alpha Theta's 141st year at MIT. If you've attended any of the recent reunions (over 300 brothers and guests attended the 135th!), then you know well the amount of fun and brotherhood that can be packed into one weekend.

Brothers, Sweethearts, and Friends of the House are all invited, as are spouses, children, and guests. Child care will be available.

The overall schedule is still being finalized, but the general outline will be:

Friday Evening, April 28th

  • Open House at 532 Beacon Street
  • Class and Era Events and Dinners around the Boston Area

Saturday, April 29th

  • Ritual Exemplification
  • Alpha Theta Academy
  • Reception, Banquet, and Ball at the Hotel Commonwealth in Kenmore Square

Sunday, April 30th

  • Brunch or Cookout
  • More activities TBA

Rooms will be available at a block discount at the Hotel Commonwealth.

While the details of the reunion are still in the works, we will be updating this site regularly to provide an overview of the Reunion, a detailed schedule of events, and more Reunion details, such as registration info and hotel accommodations.

In the meantime, check out photos and coverage of the 135th Anniversary Reunion, held in April 2017 or take a virtual tour of the beautifully renovated 532 Beacon Street.

If you have any questions, feel free to contact the Reunion coordinators.

We hope to see you in 2023!

In Hoc,

Dan Craig

Alpha Theta Sigma Chi '03

Alpha Theta Reunions

Alpha Theta Sigma Chi holds a massive reunion every five years. This tradition started in 1982, upon Alpha Theta's celebration of 100 years at MIT, and has continued every five years since.

Alumni travel from far and wide to attend these incredible events, reconnecting with each other and with the current active brothers.

Check out the archives from the past several reunions:

135th Anniversary Reunion - May 2017

130th Anniversary Reunion - April 2012

125th Anniversary Reunion - April 2007