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Insider tapeFilings through Fri, Nov 13
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George L. Sing

At a glance: George L. Sing is Director at Regeneron Pharmaceuticals (REGN). Their latest SEC Form 4, filed Nov 4, 2026, reported a sale of $1.2M. On file: 0 purchase lines ($0) and 9 sale lines ($20.4M).

Disclosed holdings: about $24.0M of REGN stock: 25,147 shares reported on their latest Form 4 (filed Nov 4, 2026), valued at the Nov 13, 2026 close of $955.47. This counts only REGN shares reported to the SEC; it leaves out cash, other investments, options and unvested awards, so it is not total net worth.

Director at Regeneron Pharmaceuticals, Inc. (REGN)

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$0
Total bought / sold$0 / $20.4M

Reported trades

Filed Stock Type Shares Price Value Since
Nov 4SEC REGNRegeneron Pharmaceuticals, Inc. Sell 1,22445,052 held (−3%) $960.57 $1.2M -0.5%
Nov 4SEC REGNRegeneron Pharmaceuticals, Inc. Sell 54044,512 held (−1%) $961.85 $519K -0.7%
Nov 4SEC REGNRegeneron Pharmaceuticals, Inc. Sell 2,52241,990 held (−6%) $962.61 $2.4M -0.7%
Nov 4SEC REGNRegeneron Pharmaceuticals, Inc. Sell 4,33837,652 held (−10%) $963.47 $4.2M -0.8%
Nov 4SEC REGNRegeneron Pharmaceuticals, Inc. Sell 2,67034,982 held (−7%) $964.57 $2.6M -0.9%
Nov 4SEC REGNRegeneron Pharmaceuticals, Inc. Sell 7,07327,909 held (−20%) $965.38 $6.8M -1.0%
Nov 4SEC REGNRegeneron Pharmaceuticals, Inc. Sell 1,52226,387 held (−5%) $966.27 $1.5M -1.1%
Nov 4SEC REGNRegeneron Pharmaceuticals, Inc. Sell 1,04025,347 held (−4%) $967.07 $1.0M -1.2%
Nov 4SEC REGNRegeneron Pharmaceuticals, Inc. Sell 20025,147 held (−1%) $970.18 $194K -1.5%

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