Aileron Therapeutics Inc

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Aileron Therapeutics Inc
TickerRNTX
CIK #0001420565
CUSIP00887A204
SectorLife Sciences - Pharmaceutical Preparations
Address281 Albany Street, Cambridge, MA 02139
Source [EDGAR]
Reg D Offering (Form D) Filed Raised Terms
Aileron Therapeutics Inc 2023-11-16 18.3 M Exemption: 506(b) · Duration: One year or less · Commission: $752,797 · Revenue: Decline to Disclose
CIK Filing 2011 - 2026
[0001420565] 10-K
[0001420565] 10-Q
[0001420565] 3
[0001420565] 4
[0001420565] 8-K
[0001420565] D
[0001420565] SC 13D
[0001420565] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Lynwood Capital Management Inc Rein Therapeutics Inc [2026-05-08] 0.0
Funicular Funds LP Rein Therapeutics Inc [2026-05-07] 0.0
Lytton Laurence W Rein Therapeutics Inc [2026-05-06] 0.0
Voss Capital LP Rein Therapeutics Inc [2025-05-14] 0.0
University of Texas/Texas AM Investment Managment Co Aileron Therapeutics Inc [2024-03-05] 6.2
BIOS Fund I LP Aileron Therapeutics Inc [2023-11-13] 0.99
Biotechnology Value Fund L P Aileron Therapeutics Inc [2021-01-19] 3.3
Kapnick Scott Aileron Therapeutics Inc [2020-06-08] 8.8
Prudential Financial Inc Aileron Therapeutics Inc [2019-04-26] 12.7
Satter Muneer A Aileron Therapeutics Inc [2019-04-10] 25.1
Jennison Associates LLC Aileron Therapeutics Inc [2019-04-09] 12.7
Armistice Capital LLC Aileron Therapeutics Inc [2019-04-08] 8.0
Apple Tree Partners II LP Aileron Therapeutics Inc [2018-02-09] 15.7
Lilly Ventures Fund I LLC Aileron Therapeutics Inc [2017-07-17] 7.4
Excel Medical Fund LP Aileron Therapeutics Inc [2017-07-13] 6.9
GlaxoSmithKline PLC Aileron Therapeutics Inc [2017-07-10] 0.7
Novartis BioVentures Ltd Aileron Therapeutics Inc [2017-07-05] 17.3
Form 3/4/5 Filer 2011 - 2026
von Rickenbach Josef H
Rein Therapeutics Inc
Windsor James Brian
Voss Value Master Fund LP
Voss Advisors GP LLC
Cocke Travis W
Voss Capital LP
Voss Value-Oriented Special Situations Fund LP
Fairey William
Ambros Reinhard J
Aivado Manuel
Musso Alan A
University of Texas/Texas AM Investment Management Co
Cunningham Timothy M
Garner Charles
Bailey Jeffrey Allen
Morrison Jodie Pope
McKee William
Sigal Nolan Howard
Drexler Susan L
Wanstall Rick
Annis Allen
Vukovic Vojo
Satter Muneer A
Gregory Kathryn
McArthur John H
Dougherty Donald
Novartis AG
Novartis BioVentures Ltd
Longenecker John P PhD
Apple Tree Partners II LP
Apple Tree Partners II - Annex LP
Shanafelt Armen
Winder Caleb Maxfield
Kapnick Scott
Nelson Kira
Yanchik Joseph A III
Gallagher Brian M Jr
AJU IB Investment Co Ltd
LV Management Group LLC
Hall Steven Edward
Torres S Edward
Lilly Ventures Fund I LLC
Sigma Emerging Markets Ltd
Gullans Steven R PhD
Blume Frederick R
Excel Medical Ventures LLC
Excel Medical Fund LP
Enriquez Juan
KCK Ltd
CVF LLC
Roche Holding Ltd
Roche Finance Ltd
Platt Jon B
GlaxoSmithKline PLC
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Voss Value Master Fund LP +4
Common Stock, $0.001 par value
2025-11-14 Buy 104,183 $1.22 127,103
Voss Value Master Fund LP +4
Common Stock, $0.001 par value
2025-10-28 Buy 178,392 $1.39 247,965
Voss Value Master Fund LP +4
Common Stock, $0.001 par value
2025-10-27 Buy 4,840 $1.37 6,631
Voss Value Master Fund LP +4
Common Stock, $0.001 par value
2025-10-27 Buy 92,642 $1.37 126,920
Voss Value Master Fund LP +4
Common Stock, $0.001 par value
2025-10-24 Buy 30,176 $1.39 41,945
Aivado Manuel
Stock Option (right to buy) · derivative
2025-07-23 Grant 17,500 $0.00
Musso Alan A
Stock Option (right to buy) · derivative
2025-07-23 Grant 17,500 $0.00
Fairey William
Stock Option (right to buy) · derivative
2025-07-23 Grant 17,500 $0.00
Ambros Reinhard J
Stock Option (right to buy) · derivative
2025-07-23 Grant 17,500 $0.00
von Rickenbach Josef H
Stock Option (right to buy) · derivative
2025-07-23 Grant 17,500 $0.00
Windsor James Brian
Common Stock
2024-12-05 Buy 161 $2.25 362
Windsor James Brian
Common Stock
2024-12-05 Buy 239 $2.24 535
Windsor James Brian
Stock Option (right to buy) · derivative
2024-12-02 Grant 517,500 $0.00
Aivado Manuel
Stock Option (right to buy) · derivative
2024-12-02 Grant 35,000 $0.00
Ambros Reinhard J
Stock Option (right to buy) · derivative
2024-12-02 Grant 35,000 $0.00
Fairey William
Stock Option (right to buy) · derivative
2024-12-02 Grant 35,000 $0.00
von Rickenbach Josef H
Stock Option (right to buy) · derivative
2024-12-02 Grant 35,000 $0.00
Musso Alan A
Stock Option (right to buy) · derivative
2024-12-02 Grant 35,000 $0.00
von Rickenbach Josef H
Stock Option (right to buy) · derivative
2024-08-20 Grant 2,725 $0.00
Aivado Manuel
Stock Option (right to buy) · derivative
2024-08-20 Grant 2,725 $0.00
showing 20 of 200 most recent transactions
13F Ownership Over TimeHoldersShares Held
2026-03-31 46 11,396,541
2025-12-31 48 10,799,743
2025-09-30 40 8,489,251
2025-06-30 37 6,657,226
2025-03-31 40 6,017,438
2024-12-31 32 5,679,239
2024-09-30 32 4,605,068
2024-06-30 29 5,359,053
2024-03-31 24 1,690,967
2023-12-31 21 1,064,952
2023-09-30 17 1,045,528
2023-06-30 18 1,022,705
Form 13F Holdings
Firm Period DFND Voting Shares
Sequoia Financial Advisors LLC [2026-06-30] SOLE 0 250,000
Steel Peak Wealth Management LLC [2026-06-30] SOLE 0 33,000
Gleason Group Inc [2026-06-30] SOLE 0 22,389
JFS Wealth Advisors LLC [2026-06-30] SOLE 0 1,590
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