62:, one of the first investment firms to use mathematical formulas to price stocks and derivatives. Princeton Newport Partners collapsed in 1989, following the indictment of five executives in connection with a scheme to create illegal tax losses. Mr. Thorp and Mr. Gelbaum were not implicated, and an appellate court later overturned the other executives' convictions. The same year, Gelbaum moved to
69:
His investment focus was on the environmental technology and renewable energy industries having served on various public company boards in these industries, including the boards of Solar
Enertech Corp., ThermoEnergy Corporation, Clean Power Technologies, Graphene Energy, Advanced Hydro, Inc., Gravity
104:
It was revealed in a
Bloomberg exposé that Gelbaum, along with two other partners of investment firm TGS Management, had quietly given over $ 13 billion to charitable causes over the previous two decades, using a web of trusts and private companies to hide their identities.
94:. Some of his biggest donations, around $ 250 million, has gone to aid American veterans of the wars in Iraq and Afghanistan through a charity he founded, the Iraq Afghanistan Deployment Impact Fund (IADIF).
26:
Beginning in 2002, he invested up to $ 500 million in clean-tech companies through his
Quercus Trust, with a portfolio of businesses involved in nearly every aspect of the emerging
47:
290:
244:
34:, electric cars or biological remediation of oil spills. He was CEO and chairman of the Board of Entech Solar, a company he co-founded with Mark O'Neill.
86:, a land trust he co-founded that has acquired and preserved 1,200 square miles of land in California, including more than a half million acres of the
300:
43:
280:
23: 1950 - September 2018) was an American businessman and primarily green technology investor and environmental philanthropist.
51:
91:
189:
204:
285:
275:
59:
90:. He was responsible for the Sierra Club reversing its stance on immigration. He notably gave $ 93 million to the
83:
170:
31:
122:
270:
295:
229:
155:
175:
98:
42:
Gelbaum was born and raised in
Minneapolis, Minnesota, the second of four sons. He studied at
150:
55:
249:
63:
264:
87:
27:
79:
208:
50:
in
Northern California before graduating with a B.A. in mathematics from
230:"114 of the world's wealthiest families committed to the Giving Pledge"
58:, whose theories led to the establishment of what became
54:. After graduating, he worked for a math professor,
205:"CalFund: Iraq Afghanistan Deployment Impact Fund"
48:California State Polytechnic University, Humboldt
30:, be it renewable energy, smart electric grids,
8:
66:, working in a similar capacity until 2002.
144:
142:
140:
70:Power, Aerofarms, and Energy Focus, Inc.
291:University of California, Irvine alumni
114:
125:. Inside Philanthropy. January 7, 2020
7:
151:"You'd Never Know He's a Sun King"
78:Gelbaum gave $ 200 million to the
44:University of California, Berkeley
14:
245:"The $ 13 Billion Mystery Angels"
52:University of California, Irvine
243:Mider, Zachary (May 14, 2014).
92:American Civil Liberties Union
1:
193:: David Gelbaum - At a Glance
149:Woody, Todd (July 30, 2013).
20:
317:
301:21st-century American Jews
60:Princeton Newport Partners
171:"The Man Behind the Land"
84:The Wildlands Conservancy
281:American philanthropists
32:sustainable agriculture
82:and $ 250 million to
286:Sierra Club people
276:American investors
179:. 27 October 2004.
156:The New York Times
176:Los Angeles Times
99:The Giving Pledge
308:
255:
254:
240:
234:
233:
226:
220:
219:
217:
216:
207:. Archived from
201:
195:
187:
181:
180:
167:
161:
160:
146:
135:
134:
132:
130:
119:
22:
316:
315:
311:
310:
309:
307:
306:
305:
261:
260:
259:
258:
242:
241:
237:
228:
227:
223:
214:
212:
203:
202:
198:
188:
184:
169:
168:
164:
148:
147:
138:
128:
126:
123:"David Gelbaum"
121:
120:
116:
111:
76:
56:Edward O. Thorp
40:
12:
11:
5:
314:
312:
304:
303:
298:
293:
288:
283:
278:
273:
263:
262:
257:
256:
235:
232:. May 7, 2013.
221:
196:
182:
162:
136:
113:
112:
110:
107:
75:
72:
64:TGS Management
39:
36:
13:
10:
9:
6:
4:
3:
2:
313:
302:
299:
297:
294:
292:
289:
287:
284:
282:
279:
277:
274:
272:
269:
268:
266:
252:
251:
246:
239:
236:
231:
225:
222:
211:on 2013-05-10
210:
206:
200:
197:
194:
192:
186:
183:
178:
177:
172:
166:
163:
158:
157:
152:
145:
143:
141:
137:
124:
118:
115:
108:
106:
102:
100:
95:
93:
89:
88:Mojave Desert
85:
81:
73:
71:
67:
65:
61:
57:
53:
49:
45:
37:
35:
33:
29:
28:green economy
24:
18:
17:David Gelbaum
271:1950s births
248:
238:
224:
213:. Retrieved
209:the original
199:
190:
185:
174:
165:
154:
127:. Retrieved
117:
103:
96:
77:
74:Philanthropy
68:
41:
25:
16:
15:
296:2018 deaths
80:Sierra Club
265:Categories
215:2013-07-30
109:References
97:He signed
250:Bloomberg
129:27 August
101:in 2013.
191:Forbes
38:Career
131:2020
46:and
267::
247:.
173:.
153:.
139:^
21:c.
253:.
218:.
159:.
133:.
19:(
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.