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John B. Harlow Jr.

At a glance: John B. Harlow Jr. is COO, President at Larimar Therapeutics (LRMR). Their latest SEC Form 4, filed Nov 12, 2026, reported a purchase of $50K. On file: 1 purchase line ($50K) and 0 sale lines ($0).

Disclosed holdings: about $205K of LRMR stock: 67,800 shares reported on their latest Form 4 (filed Nov 12, 2026), valued at the Nov 13, 2026 close of $3.02. This counts only LRMR shares reported to the SEC; it leaves out cash, other investments, options and unvested awards, so it is not total net worth.

COO, President at Larimar Therapeutics, Inc. (LRMR)

Purchase track record

Not enough history. Based on 0 purchases with a full 90 days of price history.

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Avg. 90-day return—
vs. S&P 500—
Beat the market—
Paper profit on buys+$4K
Total bought / sold$50K / $0

Reported trades

Filed Stock Type Shares Price Value Since
Nov 12SEC LRMRLarimar Therapeutics, Inc.First buy Buy 17,80067,800 held (+36%) $2.80 $50K +7.7%
  • Buy

    COO, President John B. Harlow Jr. bought $50K of LRMR at $2.80 — first open-market purchase in our records; raises the stake by 36%.

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