Tahira Rehmatullah, age 38, has served as Director of Cipher Mining since the company's IPO closing in 2020. She has been President of T3 Ventures Advisory since August 2016 and Partner at Highlands Venture Partners since June 2020, with expertise in brand development, investment strategy, and operational growth.
Her career spans venture capital, special purpose acquisition companies, and investment management. She was Managing Director at Hypur Ventures (June 2017–August 2019), CFO of MTech Acquisition Corp., a SPAC (January 2018–June 2019), and General Manager of Marley Natural cannabis brand (November 2014–May 2016). Earlier roles include Investment Manager at Privateer Holdings (July 2014–May 2016), Portfolio Manager at City First Enterprises managing community development investments (September 2011–June 2012), and Associate at Perry Capital (March 2007–July 2011) leading asset-backed securities research. She began her career at Ernst & Young's Financial Services Advisory practice (October 2005–March 2007).
Rehmatullah earned an MBA from Yale School of Management, where she was a Yale Entrepreneurial Institute Venture Creation Advisor. She holds a B.S. in Finance and Life Sciences from Ohio State University, graduating Magna Cum Laude and as a Presidential Scholar.
Biography extracted from Cipher Mining 10-K filed 2021-02-17 View cached copy (2026-09-27)Live source ↗
Roles
Contiguous filings for the same role are collapsed into a single tenure span. Click a row to see the underlying filings.
| Company | Role | Tenure | Filings |
|---|---|---|---|
| Cipher Mining | Chief Executive Officer, Director | 2020-10 → present (6y 1mo) | 1 |
| Cipher Mining | Director | 2021-03 → present (5y 8mo) | 1 |
Insider transactions
Totals for this person
| Bucket | Invested (shares) | Invested (USD) | Divested (shares) | Divested (USD) | Net direction | Txns | Invested @ last price | Divested @ last price |
|---|---|---|---|---|---|---|---|---|
| All time | - | $0 | 2,500 | $0 | Flat | 1 | $0 | $18.2K |
| 2021 | - | $0 | 2,500 | $0 | Flat | 1 | $0 | $18.2K |
| 2021-Q1 | - | $0 | 2,500 | $0 | Flat | 1 | $0 | $18.2K |
Invested = shares acquired (buys, grants, option exercises) — insider adding to the position. Divested = shares reduced (sells, dispositions, tax-withholding) — cash flowing TO the insider. Net direction shows which side wins on dollar terms in each bucket. % of holder's stake not yet computed (pending Form 3/4 holdings ingest). See methodology. The two @ last price columns restate the same share counts at the most recent share price we read (close of 2026-10-30); they are a valuation, not a cash flow, and they move every day the market does.
All transactions
| Date | Company | Kind | Shares | Amount (USD) | Value @ last price |
|---|---|---|---|---|---|
| 2021-03-10 | Cipher Mining | Bona fide gift | 2,500 | - | $18.2K |